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Merge branch 'master' into debug-merge-master

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This commit is contained in:
Ben Burdette 2022-04-28 12:32:57 -06:00
commit 6e19947993
102 changed files with 2212 additions and 1418 deletions
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1
.gitignore vendored
View file

@ -79,6 +79,7 @@ perl/Makefile.config
/tests/shell.drv
/tests/config.nix
/tests/ca/config.nix
/tests/repl-result-out
# /tests/lang/
/tests/lang/*.out

2
.version
View file

@ -1 +1 @@
2.8.0
2.9.0

1
doc/manual/src/SUMMARY.md.in
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@ -72,6 +72,7 @@
- [CLI guideline](contributing/cli-guideline.md)
- [Release Notes](release-notes/release-notes.md)
- [Release X.Y (202?-??-??)](release-notes/rl-next.md)
- [Release 2.8 (2022-04-19)](release-notes/rl-2.8.md)
- [Release 2.7 (2022-03-07)](release-notes/rl-2.7.md)
- [Release 2.6 (2022-01-24)](release-notes/rl-2.6.md)
- [Release 2.5 (2021-12-13)](release-notes/rl-2.5.md)

53
doc/manual/src/release-notes/rl-2.8.md Normal file
View file

@ -0,0 +1,53 @@
# Release 2.8 (2022-04-19)
* New experimental command: `nix fmt`, which applies a formatter
defined by the `formatter.<system>` flake output to the Nix
expressions in a flake.
* Various Nix commands can now read expressions from standard input
using `--file -`.
* New experimental builtin function `builtins.fetchClosure` that
copies a closure from a binary cache at evaluation time and rewrites
it to content-addressed form (if it isn't already). Like
`builtins.storePath`, this allows importing pre-built store paths;
the difference is that it doesn't require the user to configure
binary caches and trusted public keys.
This function is only available if you enable the experimental
feature `fetch-closure`.
* New experimental feature: *impure derivations*. These are
derivations that can produce a different result every time they're
built. Here is an example:
```nix
stdenv.mkDerivation {
name = "impure";
__impure = true; # marks this derivation as impure
buildCommand = "date > $out";
}
```
Running `nix build` twice on this expression will build the
derivation twice, producing two different content-addressed store
paths. Like fixed-output derivations, impure derivations have access
to the network. Only fixed-output derivations and impure derivations
can depend on an impure derivation.
* `nix store make-content-addressable` has been renamed to `nix store
make-content-addressed`.
* The `nixosModule` flake output attribute has been renamed consistent
with the `.default` renames in Nix 2.7.
* `nixosModule` → `nixosModules.default`
As before, the old output will continue to work, but `nix flake check` will
issue a warning about it.
* `nix run` is now stricter in what it accepts: members of the `apps`
flake output are now required to be apps (as defined in [the
manual](https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-run.html#apps)),
and members of `packages` or `legacyPackages` must be derivations
(not apps).

48
doc/manual/src/release-notes/rl-next.md
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@ -1,42 +1,16 @@
# Release X.Y (202?-??-??)
* Various nix commands can now read expressions from stdin with `--file -`.
* Nix now provides better integration with zsh's run-help feature. It is now
included in the Nix installation in the form of an autoloadable shell
function, run-help-nix. It picks up Nix subcommands from the currently typed
in command and directs the user to the associated man pages.
* `nix store make-content-addressable` has been renamed to `nix store
make-content-addressed`.
* `nix repl` has a new build-'n-link (`:bl`) command that builds a derivation
while creating GC root symlinks.
* New experimental builtin function `builtins.fetchClosure` that
copies a closure from a binary cache at evaluation time and rewrites
it to content-addressed form (if it isn't already). Like
`builtins.storePath`, this allows importing pre-built store paths;
the difference is that it doesn't require the user to configure
binary caches and trusted public keys.
* The path produced by `builtins.toFile` is now allowed to be imported or read
even with restricted evaluation. Note that this will not work with a
read-only store.
This function is only available if you enable the experimental
feature `fetch-closure`.
* New experimental feature: *impure derivations*. These are
derivations that can produce a different result every time they're
built. Here is an example:
```nix
stdenv.mkDerivation {
name = "impure";
__impure = true; # marks this derivation as impure
buildCommand = "date > $out";
}
```
Running `nix build` twice on this expression will build the
derivation twice, producing two different content-addressed store
paths. Like fixed-output derivations, impure derivations have access
to the network. Only fixed-output derivations and impure derivations
can depend on an impure derivation.
* The `nixosModule` flake output attribute has been renamed consistent
with the `.default` renames in nix 2.7.
* `nixosModule` → `nixosModules.default`
As before, the old output will continue to work, but `nix flake check` will
issue a warning about it.
* `nix build` has a new `--print-out-paths` flag to print the resulting output paths.
This matches the default behaviour of `nix-build`.

1
docker.nix
View file

@ -22,6 +22,7 @@ let
findutils
iana-etc
git
openssh
];
users = {

2
flake.nix
View file

@ -23,7 +23,7 @@
crossSystems = [ "armv6l-linux" "armv7l-linux" ];
stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" ];
stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" "libcxxStdenv" ];
forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
forAllSystemsAndStdenvs = f: forAllSystems (system:

2
misc/bash/completion.sh
View file

@ -15,7 +15,7 @@ function _complete_nix {
else
COMPREPLY+=("$completion")
fi
done < <(NIX_GET_COMPLETIONS=$cword "${words[@]/#\~/$HOME}" 2>/dev/null)
done < <(NIX_GET_COMPLETIONS=$cword "${words[@]}" 2>/dev/null)
__ltrim_colon_completions "$cur"
}

1
misc/zsh/local.mk
View file

@ -1 +1,2 @@
$(eval $(call install-file-as, $(d)/completion.zsh, $(datarootdir)/zsh/site-functions/_nix, 0644))
$(eval $(call install-file-as, $(d)/run-help-nix, $(datarootdir)/zsh/site-functions/run-help-nix, 0644))

42
misc/zsh/run-help-nix Normal file
View file

@ -0,0 +1,42 @@
emulate -L zsh
# run-help is a zsh widget that can be bound to a key. It mainly looks up the
# man page for the currently typed in command.
#
# Although run-help works for any command without requiring special support,
# it can only deduce the right man page based solely on the name of the
# command. Programs like Nix provide better integration with run-help by
# helping zsh identify Nix subcommands and their corresponding man pages. This
# is what this function does.
#
# To actually use run-help on zsh, place the following lines in your .zshrc:
#
# (( $+aliases[run-help] )) && unalias run-help
# autoload -Uz run-help run-help-nix
#
# Then also assign run-help to any key of choice:
#
# bindkey '^[h' run-help
while [[ "$#" != 0 && "$1" == -* ]]; do
shift
done
local -a subcommands; subcommands=( nix3 )
local arg
for arg in "$@"; do
if man -w "${(j:-:)subcommands}-$arg" >/dev/null 2>&1; then
subcommands+="$arg"
else
break
fi
done
if (( $#subcommands > 1 )); then
man "${(j:-:)subcommands}"
else
man nix
fi
return $?

8
src/libcmd/command.cc
View file

@ -228,17 +228,17 @@ void StorePathCommand::run(ref<Store> store, std::vector<StorePath> && storePath
run(store, *storePaths.begin());
}
Strings editorFor(const Pos & pos)
Strings editorFor(const Path & file, uint32_t line)
{
auto editor = getEnv("EDITOR").value_or("cat");
auto args = tokenizeString<Strings>(editor);
if (pos.line > 0 && (
if (line > 0 && (
editor.find("emacs") != std::string::npos ||
editor.find("nano") != std::string::npos ||
editor.find("vim") != std::string::npos ||
editor.find("kak") != std::string::npos))
args.push_back(fmt("+%d", pos.line));
args.push_back(pos.file);
args.push_back(fmt("+%d", line));
args.push_back(file);
return args;
}

4
src/libcmd/command.hh
View file

@ -137,7 +137,7 @@ struct InstallableCommand : virtual Args, SourceExprCommand
std::optional<FlakeRef> getFlakeRefForCompletion() override
{
return parseFlakeRef(_installable, absPath("."));
return parseFlakeRefWithFragment(_installable, absPath(".")).first;
}
private:
@ -221,7 +221,7 @@ static RegisterCommand registerCommand2(std::vector<std::string> && name)
/* Helper function to generate args that invoke $EDITOR on
filename:lineno. */
Strings editorFor(const Pos & pos);
Strings editorFor(const Path & file, uint32_t line);
struct MixProfile : virtual StoreCommand
{

4
src/libexpr/common-eval-args.cc → src/libcmd/common-eval-args.cc
View file

@ -7,6 +7,7 @@
#include "registry.hh"
#include "flake/flakeref.hh"
#include "store-api.hh"
#include "command.hh"
namespace nix {
@ -59,6 +60,9 @@ MixEvalArgs::MixEvalArgs()
fetchers::Attrs extraAttrs;
if (to.subdir != "") extraAttrs["dir"] = to.subdir;
fetchers::overrideRegistry(from.input, to.input, extraAttrs);
}},
.completer = {[&](size_t, std::string_view prefix) {
completeFlakeRef(openStore(), prefix);
}}
});

0
src/libexpr/common-eval-args.hh → src/libcmd/common-eval-args.hh
View file

162
src/libcmd/installables.cc
View file

@ -1,5 +1,6 @@
#include "globals.hh"
#include "installables.hh"
#include "util.hh"
#include "command.hh"
#include "attr-path.hh"
#include "common-eval-args.hh"
@ -100,6 +101,14 @@ MixFlakeOptions::MixFlakeOptions()
lockFlags.inputOverrides.insert_or_assign(
flake::parseInputPath(inputPath),
parseFlakeRef(flakeRef, absPath("."), true));
}},
.completer = {[&](size_t n, std::string_view prefix) {
if (n == 0) {
if (auto flakeRef = getFlakeRefForCompletion())
completeFlakeInputPath(getEvalState(), *flakeRef, prefix);
} else if (n == 1) {
completeFlakeRef(getEvalState()->store, prefix);
}
}}
});
@ -194,6 +203,8 @@ Strings SourceExprCommand::getDefaultFlakeAttrPathPrefixes()
void SourceExprCommand::completeInstallable(std::string_view prefix)
{
if (file) {
completionType = ctAttrs;
evalSettings.pureEval = false;
auto state = getEvalState();
Expr *e = state->parseExprFromFile(
@ -222,13 +233,14 @@ void SourceExprCommand::completeInstallable(std::string_view prefix)
Value v2;
state->autoCallFunction(*autoArgs, v1, v2);
completionType = ctAttrs;
if (v2.type() == nAttrs) {
for (auto & i : *v2.attrs) {
std::string name = i.name;
std::string name = state->symbols[i.name];
if (name.find(searchWord) == 0) {
completions->add(i.name);
if (prefix_ == "")
completions->add(name);
else
completions->add(prefix_ + "." + name);
}
}
}
@ -256,10 +268,11 @@ void completeFlakeRefWithFragment(
if (hash == std::string::npos) {
completeFlakeRef(evalState->store, prefix);
} else {
completionType = ctAttrs;
auto fragment = prefix.substr(hash + 1);
auto flakeRefS = std::string(prefix.substr(0, hash));
// FIXME: do tilde expansion.
auto flakeRef = parseFlakeRef(flakeRefS, absPath("."));
auto flakeRef = parseFlakeRef(expandTilde(flakeRefS), absPath("."));
auto evalCache = openEvalCache(*evalState,
std::make_shared<flake::LockedFlake>(lockFlake(*evalState, flakeRef, lockFlags)));
@ -271,8 +284,6 @@ void completeFlakeRefWithFragment(
flake. */
attrPathPrefixes.push_back("");
completionType = ctAttrs;
for (auto & attrPathPrefixS : attrPathPrefixes) {
auto attrPathPrefix = parseAttrPath(*evalState, attrPathPrefixS);
auto attrPathS = attrPathPrefixS + std::string(fragment);
@ -280,7 +291,7 @@ void completeFlakeRefWithFragment(
std::string lastAttr;
if (!attrPath.empty() && !hasSuffix(attrPathS, ".")) {
lastAttr = attrPath.back();
lastAttr = evalState->symbols[attrPath.back()];
attrPath.pop_back();
}
@ -288,11 +299,11 @@ void completeFlakeRefWithFragment(
if (!attr) continue;
for (auto & attr2 : (*attr)->getAttrs()) {
if (hasPrefix(attr2, lastAttr)) {
if (hasPrefix(evalState->symbols[attr2], lastAttr)) {
auto attrPath2 = (*attr)->getAttrPath(attr2);
/* Strip the attrpath prefix. */
attrPath2.erase(attrPath2.begin(), attrPath2.begin() + attrPathPrefix.size());
completions->add(flakeRefS + "#" + concatStringsSep(".", attrPath2));
completions->add(flakeRefS + "#" + concatStringsSep(".", evalState->symbols.resolve(attrPath2)));
}
}
}
@ -346,16 +357,16 @@ DerivedPath Installable::toDerivedPath()
return std::move(buildables[0]);
}
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
std::vector<ref<eval_cache::AttrCursor>>
Installable::getCursors(EvalState & state)
{
auto evalCache =
std::make_shared<nix::eval_cache::EvalCache>(std::nullopt, state,
[&]() { return toValue(state).first; });
return {{evalCache->getRoot(), ""}};
return {evalCache->getRoot()};
}
std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
ref<eval_cache::AttrCursor>
Installable::getCursor(EvalState & state)
{
auto cursors = getCursors(state);
@ -462,7 +473,7 @@ struct InstallableAttrPath : InstallableValue
std::string what() const override { return attrPath; }
std::pair<Value *, Pos> toValue(EvalState & state) override
std::pair<Value *, PosIdx> toValue(EvalState & state) override
{
auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v);
state.forceValue(*vRes, pos);
@ -578,43 +589,21 @@ InstallableFlake::InstallableFlake(
std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
{
auto lockedFlake = getLockedFlake();
auto attr = getCursor(*state);
auto cache = openEvalCache(*state, lockedFlake);
auto root = cache->getRoot();
auto attrPath = attr->getAttrPathStr();
Suggestions suggestions;
if (!attr->isDerivation())
throw Error("flake output attribute '%s' is not a derivation", attrPath);
for (auto & attrPath : getActualAttrPaths()) {
debug("trying flake output attribute '%s'", attrPath);
auto drvPath = attr->forceDerivation();
auto attrOrSuggestions = root->findAlongAttrPath(
parseAttrPath(*state, attrPath),
true
);
auto drvInfo = DerivationInfo {
std::move(drvPath),
attr->getAttr(state->sOutputName)->getString()
};
if (!attrOrSuggestions) {
suggestions += attrOrSuggestions.getSuggestions();
continue;
}
auto attr = *attrOrSuggestions;
if (!attr->isDerivation())
throw Error("flake output attribute '%s' is not a derivation", attrPath);
auto drvPath = attr->forceDerivation();
auto drvInfo = DerivationInfo {
std::move(drvPath),
attr->getAttr(state->sOutputName)->getString()
};
return {attrPath, lockedFlake->flake.lockedRef, std::move(drvInfo)};
}
throw Error(suggestions, "flake '%s' does not provide attribute %s",
flakeRef, showAttrPaths(getActualAttrPaths()));
return {attrPath, getLockedFlake()->flake.lockedRef, std::move(drvInfo)};
}
std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
@ -624,35 +613,12 @@ std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
return res;
}
std::pair<Value *, Pos> InstallableFlake::toValue(EvalState & state)
std::pair<Value *, PosIdx> InstallableFlake::toValue(EvalState & state)
{
auto lockedFlake = getLockedFlake();
auto vOutputs = getFlakeOutputs(state, *lockedFlake);
auto emptyArgs = state.allocBindings(0);
Suggestions suggestions;
for (auto & attrPath : getActualAttrPaths()) {
try {
auto [v, pos] = findAlongAttrPath(state, attrPath, *emptyArgs, *vOutputs);
state.forceValue(*v, pos);
return {v, pos};
} catch (AttrPathNotFound & e) {
suggestions += e.info().suggestions;
}
}
throw Error(
suggestions,
"flake '%s' does not provide attribute %s",
flakeRef,
showAttrPaths(getActualAttrPaths())
);
return {&getCursor(state)->forceValue(), noPos};
}
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
std::vector<ref<eval_cache::AttrCursor>>
InstallableFlake::getCursors(EvalState & state)
{
auto evalCache = openEvalCache(state,
@ -660,21 +626,55 @@ InstallableFlake::getCursors(EvalState & state)
auto root = evalCache->getRoot();
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>> res;
std::vector<ref<eval_cache::AttrCursor>> res;
for (auto & attrPath : getActualAttrPaths()) {
auto attr = root->findAlongAttrPath(parseAttrPath(state, attrPath));
if (attr) res.push_back({*attr, attrPath});
if (attr) res.push_back(ref(*attr));
}
return res;
}
ref<eval_cache::AttrCursor> InstallableFlake::getCursor(EvalState & state)
{
auto lockedFlake = getLockedFlake();
auto cache = openEvalCache(state, lockedFlake);
auto root = cache->getRoot();
Suggestions suggestions;
auto attrPaths = getActualAttrPaths();
for (auto & attrPath : attrPaths) {
debug("trying flake output attribute '%s'", attrPath);
auto attrOrSuggestions = root->findAlongAttrPath(
parseAttrPath(state, attrPath),
true
);
if (!attrOrSuggestions) {
suggestions += attrOrSuggestions.getSuggestions();
continue;
}
return *attrOrSuggestions;
}
throw Error(
suggestions,
"flake '%s' does not provide attribute %s",
flakeRef,
showAttrPaths(attrPaths));
}
std::shared_ptr<flake::LockedFlake> InstallableFlake::getLockedFlake() const
{
flake::LockFlags lockFlagsApplyConfig = lockFlags;
lockFlagsApplyConfig.applyNixConfig = true;
if (!_lockedFlake) {
flake::LockFlags lockFlagsApplyConfig = lockFlags;
lockFlagsApplyConfig.applyNixConfig = true;
_lockedFlake = std::make_shared<flake::LockedFlake>(lockFlake(*state, flakeRef, lockFlagsApplyConfig));
}
return _lockedFlake;
@ -831,8 +831,8 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
auto realisation = store->queryRealisation(outputId);
if (!realisation)
throw Error(
"cannot operate on an output of unbuilt "
"content-addressed derivation '%s'",
"cannot operate on an output of the "
"unbuilt derivation '%s'",
outputId.to_string());
outputs.insert_or_assign(output, realisation->outPath);
} else {
@ -980,10 +980,10 @@ std::optional<FlakeRef> InstallablesCommand::getFlakeRefForCompletion()
{
if (_installables.empty()) {
if (useDefaultInstallables())
return parseFlakeRef(".", absPath("."));
return parseFlakeRefWithFragment(".", absPath(".")).first;
return {};
}
return parseFlakeRef(_installables.front(), absPath("."));
return parseFlakeRefWithFragment(_installables.front(), absPath(".")).first;
}
InstallableCommand::InstallableCommand(bool supportReadOnlyMode)

16
src/libcmd/installables.hh
View file

@ -68,7 +68,7 @@ struct Installable
UnresolvedApp toApp(EvalState & state);
virtual std::pair<Value *, Pos> toValue(EvalState & state)
virtual std::pair<Value *, PosIdx> toValue(EvalState & state)
{
throw Error("argument '%s' cannot be evaluated", what());
}
@ -80,10 +80,10 @@ struct Installable
return {};
}
virtual std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
virtual std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state);
std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
virtual ref<eval_cache::AttrCursor>
getCursor(EvalState & state);
virtual FlakeRef nixpkgsFlakeRef() const
@ -178,11 +178,17 @@ struct InstallableFlake : InstallableValue
std::vector<DerivationInfo> toDerivations() override;
std::pair<Value *, Pos> toValue(EvalState & state) override;
std::pair<Value *, PosIdx> toValue(EvalState & state) override;
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
/* Get a cursor to every attrpath in getActualAttrPaths() that
exists. */
std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state) override;
/* Get a cursor to the first attrpath in getActualAttrPaths() that
exists, or throw an exception with suggestions if none exists. */
ref<eval_cache::AttrCursor> getCursor(EvalState & state) override;
std::shared_ptr<flake::LockedFlake> getLockedFlake() const;
FlakeRef nixpkgsFlakeRef() const override;

72
src/libcmd/repl.cc
View file

@ -33,6 +33,7 @@ extern "C" {
#include "command.hh"
#include "finally.hh"
#include "markdown.hh"
#include "local-fs-store.hh"
#if HAVE_BOEHMGC
#define GC_INCLUDE_NEW
@ -75,7 +76,7 @@ struct NixRepl
void loadFiles();
void reloadFiles();
void addAttrsToScope(Value & attrs);
void addVarToScope(const Symbol & name, Value & v);
void addVarToScope(const Symbol name, Value & v);
Expr * parseString(std::string s);
void evalString(std::string s, Value & v);
void loadDebugTraceEnv(DebugTrace &dt);
@ -124,7 +125,7 @@ std::string runNix(Path program, const Strings & args,
});
if (!statusOk(res.first))
throw ExecError(res.first, fmt("program '%1%' %2%", program, statusToString(res.first)));
throw ExecError(res.first, "program '%1%' %2%", program, statusToString(res.first));
return res.second;
}
@ -389,9 +390,9 @@ StringSet NixRepl::completePrefix(const std::string & prefix)
state->forceAttrs(v, noPos);
for (auto & i : *v.attrs) {
std::string name = i.name;
std::string_view name = state->symbols[i.name];
if (name.substr(0, cur2.size()) != cur2) continue;
completions.insert(prev + expr + "." + name);
completions.insert(concatStrings(prev, expr, ".", name));
}
} catch (ParseError & e) {
@ -480,7 +481,8 @@ bool NixRepl::processLine(std::string line)
<< " <expr> Evaluate and print expression\n"
<< " <x> = <expr> Bind expression to variable\n"
<< " :a <expr> Add attributes from resulting set to scope\n"
<< " :b <expr> Build derivation\n"
<< " :b <expr> Build a derivation\n"
<< " :bl <expr> Build a derivation, creating GC roots in the working directory\n"
<< " :e <expr> Open package or function in $EDITOR\n"
<< " :i <expr> Build derivation, then install result into current profile\n"
<< " :l <path> Load Nix expression and add it to scope\n"
@ -586,21 +588,23 @@ bool NixRepl::processLine(std::string line)
Value v;
evalString(arg, v);
Pos pos;
if (v.type() == nPath || v.type() == nString) {
PathSet context;
auto filename = state->coerceToString(noPos, v, context);
pos.file = state->symbols.create(*filename);
} else if (v.isLambda()) {
pos = v.lambda.fun->pos;
} else {
// assume it's a derivation
pos = findPackageFilename(*state, v, arg);
}
const auto [file, line] = [&] () -> std::pair<std::string, uint32_t> {
if (v.type() == nPath || v.type() == nString) {
PathSet context;
auto filename = state->coerceToString(noPos, v, context).toOwned();
state->symbols.create(filename);
return {filename, 0};
} else if (v.isLambda()) {
auto pos = state->positions[v.lambda.fun->pos];
return {pos.file, pos.line};
} else {
// assume it's a derivation
return findPackageFilename(*state, v, arg);
}
}();
// Open in EDITOR
auto args = editorFor(pos);
auto args = editorFor(file, line);
auto editor = args.front();
args.pop_front();
@ -623,24 +627,32 @@ bool NixRepl::processLine(std::string line)
Value v, f, result;
evalString(arg, v);
evalString("drv: (import <nixpkgs> {}).runCommand \"shell\" { buildInputs = [ drv ]; } \"\"", f);
state->callFunction(f, v, result, Pos());
state->callFunction(f, v, result, PosIdx());
StorePath drvPath = getDerivationPath(result);
runNix("nix-shell", {state->store->printStorePath(drvPath)});
}
else if (command == ":b" || command == ":i" || command == ":s" || command == ":log") {
else if (command == ":b" || command == ":bl" || command == ":i" || command == ":s" || command == ":log") {
Value v;
evalString(arg, v);
StorePath drvPath = getDerivationPath(v);
Path drvPathRaw = state->store->printStorePath(drvPath);
if (command == ":b") {
if (command == ":b" || command == ":bl") {
state->store->buildPaths({DerivedPath::Built{drvPath}});
auto drv = state->store->readDerivation(drvPath);
logger->cout("\nThis derivation produced the following outputs:");
for (auto & [outputName, outputPath] : state->store->queryDerivationOutputMap(drvPath))
logger->cout(" %s -> %s", outputName, state->store->printStorePath(outputPath));
for (auto & [outputName, outputPath] : state->store->queryDerivationOutputMap(drvPath)) {
auto localStore = state->store.dynamic_pointer_cast<LocalFSStore>();
if (localStore && command == ":bl") {
std::string symlink = "repl-result-" + outputName;
localStore->addPermRoot(outputPath, absPath(symlink));
logger->cout(" ./%s -> %s", symlink, state->store->printStorePath(outputPath));
} else {
logger->cout(" %s -> %s", outputName, state->store->printStorePath(outputPath));
}
}
} else if (command == ":i") {
runNix("nix-env", {"-i", drvPathRaw});
} else if (command == ":log") {
@ -791,7 +803,7 @@ void NixRepl::initEnv()
varNames.clear();
for (auto & i : state->staticBaseEnv->vars)
varNames.insert(i.first);
varNames.emplace(state->symbols[i.first]);
}
@ -827,7 +839,7 @@ void NixRepl::addAttrsToScope(Value & attrs)
for (auto & i : *attrs.attrs) {
staticEnv->vars.emplace_back(i.name, displ);
env->values[displ++] = i.value;
varNames.insert((std::string) i.name);
varNames.emplace(state->symbols[i.name]);
}
staticEnv->sort();
staticEnv->deduplicate();
@ -835,7 +847,7 @@ void NixRepl::addAttrsToScope(Value & attrs)
}
void NixRepl::addVarToScope(const Symbol & name, Value & v)
void NixRepl::addVarToScope(const Symbol name, Value & v)
{
if (displ >= envSize)
throw Error("environment full; cannot add more variables");
@ -844,7 +856,7 @@ void NixRepl::addVarToScope(const Symbol & name, Value & v)
staticEnv->vars.emplace_back(name, displ);
staticEnv->sort();
env->values[displ++] = &v;
varNames.insert((std::string) name);
varNames.emplace(state->symbols[name]);
}
@ -925,7 +937,7 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
Bindings::iterator i = v.attrs->find(state->sDrvPath);
PathSet context;
if (i != v.attrs->end())
str << state->store->printStorePath(state->coerceToStorePath(*i->pos, *i->value, context));
str << state->store->printStorePath(state->coerceToStorePath(i->pos, *i->value, context));
else
str << "???";
str << "»";
@ -937,7 +949,7 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
typedef std::map<std::string, Value *> Sorted;
Sorted sorted;
for (auto & i : *v.attrs)
sorted[i.name] = i.value;
sorted.emplace(state->symbols[i.name], i.value);
for (auto & i : sorted) {
if (isVarName(i.first))
@ -987,7 +999,7 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
case nFunction:
if (v.isLambda()) {
std::ostringstream s;
s << v.lambda.fun->pos;
s << state->positions[v.lambda.fun->pos];
str << ANSI_BLUE "«lambda @ " << filterANSIEscapes(s.str()) << "»" ANSI_NORMAL;
} else if (v.isPrimOp()) {
str << ANSI_MAGENTA "«primop»" ANSI_NORMAL;

14
src/libexpr/attr-path.cc
View file

@ -41,13 +41,13 @@ std::vector<Symbol> parseAttrPath(EvalState & state, std::string_view s)
}
std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const std::string & attrPath,
std::pair<Value *, PosIdx> findAlongAttrPath(EvalState & state, const std::string & attrPath,
Bindings & autoArgs, Value & vIn)
{
Strings tokens = parseAttrPath(attrPath);
Value * v = &vIn;
Pos pos = noPos;
PosIdx pos = noPos;
for (auto & attr : tokens) {
@ -77,13 +77,13 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const std::string &
if (a == v->attrs->end()) {
std::set<std::string> attrNames;
for (auto & attr : *v->attrs)
attrNames.insert(attr.name);
attrNames.insert(state.symbols[attr.name]);
auto suggestions = Suggestions::bestMatches(attrNames, attr);
throw AttrPathNotFound(suggestions, "attribute '%1%' in selection path '%2%' not found", attr, attrPath);
}
v = &*a->value;
pos = *a->pos;
pos = a->pos;
}
else {
@ -106,7 +106,7 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const std::string &
}
Pos findPackageFilename(EvalState & state, Value & v, std::string what)
std::pair<std::string, uint32_t> findPackageFilename(EvalState & state, Value & v, std::string what)
{
Value * v2;
try {
@ -132,9 +132,7 @@ Pos findPackageFilename(EvalState & state, Value & v, std::string what)
throw ParseError("cannot parse line number '%s'", pos);
}
Symbol file = state.symbols.create(filename);
return { foFile, file, lineno, 0 };
return { std::move(filename), lineno };
}

4
src/libexpr/attr-path.hh
View file

@ -10,14 +10,14 @@ namespace nix {
MakeError(AttrPathNotFound, Error);
MakeError(NoPositionInfo, Error);
std::pair<Value *, Pos> findAlongAttrPath(
std::pair<Value *, PosIdx> findAlongAttrPath(
EvalState & state,
const std::string & attrPath,
Bindings & autoArgs,
Value & vIn);
/* Heuristic to find the filename and lineno or a nix value. */
Pos findPackageFilename(EvalState & state, Value & v, std::string what);
std::pair<std::string, uint32_t> findPackageFilename(EvalState & state, Value & v, std::string what);
std::vector<Symbol> parseAttrPath(EvalState & state, std::string_view s);

6
src/libexpr/attr-set.cc
View file

@ -26,7 +26,7 @@ Bindings * EvalState::allocBindings(size_t capacity)
/* Create a new attribute named 'name' on an existing attribute set stored
in 'vAttrs' and return the newly allocated Value which is associated with
this attribute. */
Value * EvalState::allocAttr(Value & vAttrs, const Symbol & name)
Value * EvalState::allocAttr(Value & vAttrs, Symbol name)
{
Value * v = allocValue();
vAttrs.attrs->push_back(Attr(name, v));
@ -40,7 +40,7 @@ Value * EvalState::allocAttr(Value & vAttrs, std::string_view name)
}
Value & BindingsBuilder::alloc(const Symbol & name, ptr<Pos> pos)
Value & BindingsBuilder::alloc(Symbol name, PosIdx pos)
{
auto value = state.allocValue();
bindings->push_back(Attr(name, value, pos));
@ -48,7 +48,7 @@ Value & BindingsBuilder::alloc(const Symbol & name, ptr<Pos> pos)
}
Value & BindingsBuilder::alloc(std::string_view name, ptr<Pos> pos)
Value & BindingsBuilder::alloc(std::string_view name, PosIdx pos)
{
return alloc(state.symbols.create(name), pos);
}

50
src/libexpr/attr-set.hh
View file

@ -15,18 +15,27 @@ struct Value;
/* Map one attribute name to its value. */
struct Attr
{
/* the placement of `name` and `pos` in this struct is important.
both of them are uint32 wrappers, they are next to each other
to make sure that Attr has no padding on 64 bit machines. that
way we keep Attr size at two words with no wasted space. */
Symbol name;
PosIdx pos;
Value * value;
ptr<Pos> pos;
Attr(Symbol name, Value * value, ptr<Pos> pos = ptr(&noPos))
: name(name), value(value), pos(pos) { };
Attr() : pos(&noPos) { };
Attr(Symbol name, Value * value, PosIdx pos = noPos)
: name(name), pos(pos), value(value) { };
Attr() { };
bool operator < (const Attr & a) const
{
return name < a.name;
}
};
static_assert(sizeof(Attr) == 2 * sizeof(uint32_t) + sizeof(Value *),
"performance of the evaluator is highly sensitive to the size of Attr. "
"avoid introducing any padding into Attr if at all possible, and do not "
"introduce new fields that need not be present for almost every instance.");
/* Bindings contains all the attributes of an attribute set. It is defined
by its size and its capacity, the capacity being the number of Attr
elements allocated after this structure, while the size corresponds to
@ -35,13 +44,13 @@ class Bindings
{
public:
typedef uint32_t size_t;
ptr<Pos> pos;
PosIdx pos;
private:
size_t size_, capacity_;
Attr attrs[0];
Bindings(size_t capacity) : pos(&noPos), size_(0), capacity_(capacity) { }
Bindings(size_t capacity) : size_(0), capacity_(capacity) { }
Bindings(const Bindings & bindings) = delete;
public:
@ -57,7 +66,7 @@ public:
attrs[size_++] = attr;
}
iterator find(const Symbol & name)
iterator find(Symbol name)
{
Attr key(name, 0);
iterator i = std::lower_bound(begin(), end(), key);
@ -65,7 +74,7 @@ public:
return end();
}
Attr * get(const Symbol & name)
Attr * get(Symbol name)
{
Attr key(name, 0);
iterator i = std::lower_bound(begin(), end(), key);
@ -73,18 +82,6 @@ public:
return nullptr;
}
Attr & need(const Symbol & name, const Pos & pos = noPos)
{
auto a = get(name);
if (!a)
throw Error({
.msg = hintfmt("attribute '%s' missing", name),
.errPos = pos
});
return *a;
}
iterator begin() { return &attrs[0]; }
iterator end() { return &attrs[size_]; }
@ -98,14 +95,15 @@ public:
size_t capacity() { return capacity_; }
/* Returns the attributes in lexicographically sorted order. */
std::vector<const Attr *> lexicographicOrder() const
std::vector<const Attr *> lexicographicOrder(const SymbolTable & symbols) const
{
std::vector<const Attr *> res;
res.reserve(size_);
for (size_t n = 0; n < size_; n++)
res.emplace_back(&attrs[n]);
std::sort(res.begin(), res.end(), [](const Attr * a, const Attr * b) {
return (const std::string &) a->name < (const std::string &) b->name;
std::sort(res.begin(), res.end(), [&](const Attr * a, const Attr * b) {
std::string_view sa = symbols[a->name], sb = symbols[b->name];
return sa < sb;
});
return res;
}
@ -130,7 +128,7 @@ public:
: bindings(bindings), state(state)
{ }
void insert(Symbol name, Value * value, ptr<Pos> pos = ptr(&noPos))
void insert(Symbol name, Value * value, PosIdx pos = noPos)
{
insert(Attr(name, value, pos));
}
@ -145,9 +143,9 @@ public:
bindings->push_back(attr);
}
Value & alloc(const Symbol & name, ptr<Pos> pos = ptr(&noPos));
Value & alloc(Symbol name, PosIdx pos = noPos);
Value & alloc(std::string_view name, ptr<Pos> pos = ptr(&noPos));
Value & alloc(std::string_view name, PosIdx pos = noPos);
Bindings * finish()
{

77
src/libexpr/eval-cache.cc
View file

@ -35,9 +35,15 @@ struct AttrDb
std::unique_ptr<Sync<State>> _state;
AttrDb(const Store & cfg, const Hash & fingerprint)
SymbolTable & symbols;
AttrDb(
const Store & cfg,
const Hash & fingerprint,
SymbolTable & symbols)
: cfg(cfg)
, _state(std::make_unique<Sync<State>>())
, symbols(symbols)
{
auto state(_state->lock());
@ -100,7 +106,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::FullAttrs)
(0, false).exec();
@ -110,7 +116,7 @@ struct AttrDb
for (auto & attr : attrs)
state->insertAttribute.use()
(rowId)
(attr)
(symbols[attr])
(AttrType::Placeholder)
(0, false).exec();
@ -135,14 +141,14 @@ struct AttrDb
}
state->insertAttributeWithContext.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::String)
(s)
(ctx).exec();
} else {
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::String)
(s).exec();
}
@ -161,7 +167,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::Bool)
(b ? 1 : 0).exec();
@ -177,7 +183,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::Placeholder)
(0, false).exec();
@ -193,7 +199,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::Missing)
(0, false).exec();
@ -209,7 +215,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::Misc)
(0, false).exec();
@ -225,7 +231,7 @@ struct AttrDb
state->insertAttribute.use()
(key.first)
(key.second)
(symbols[key.second])
(AttrType::Failed)
(0, false).exec();
@ -233,13 +239,11 @@ struct AttrDb
});
}
std::optional<std::pair<AttrId, AttrValue>> getAttr(
AttrKey key,
SymbolTable & symbols)
std::optional<std::pair<AttrId, AttrValue>> getAttr(AttrKey key)
{
auto state(_state->lock());
auto queryAttribute(state->queryAttribute.use()(key.first)(key.second));
auto queryAttribute(state->queryAttribute.use()(key.first)(symbols[key.second]));
if (!queryAttribute.next()) return {};
auto rowId = (AttrType) queryAttribute.getInt(0);
@ -253,7 +257,7 @@ struct AttrDb
std::vector<Symbol> attrs;
auto queryAttributes(state->queryAttributes.use()(rowId));
while (queryAttributes.next())
attrs.push_back(symbols.create(queryAttributes.getStr(0)));
attrs.emplace_back(symbols.create(queryAttributes.getStr(0)));
return {{rowId, attrs}};
}
case AttrType::String: {
@ -277,10 +281,13 @@ struct AttrDb
}
};
static std::shared_ptr<AttrDb> makeAttrDb(const Store & cfg, const Hash & fingerprint)
static std::shared_ptr<AttrDb> makeAttrDb(
const Store & cfg,
const Hash & fingerprint,
SymbolTable & symbols)
{
try {
return std::make_shared<AttrDb>(cfg, fingerprint);
return std::make_shared<AttrDb>(cfg, fingerprint, symbols);
} catch (SQLiteError &) {
ignoreException();
return nullptr;
@ -291,7 +298,7 @@ EvalCache::EvalCache(
std::optional<std::reference_wrapper<const Hash>> useCache,
EvalState & state,
RootLoader rootLoader)
: db(useCache ? makeAttrDb(*state.store, *useCache) : nullptr)
: db(useCache ? makeAttrDb(*state.store, *useCache, state.symbols) : nullptr)
, state(state)
, rootLoader(rootLoader)
{
@ -306,9 +313,9 @@ Value * EvalCache::getRootValue()
return *value;
}
std::shared_ptr<AttrCursor> EvalCache::getRoot()
ref<AttrCursor> EvalCache::getRoot()
{
return std::make_shared<AttrCursor>(ref(shared_from_this()), std::nullopt);
return make_ref<AttrCursor>(ref(shared_from_this()), std::nullopt);
}
AttrCursor::AttrCursor(
@ -327,8 +334,7 @@ AttrKey AttrCursor::getKey()
if (!parent)
return {0, root->state.sEpsilon};
if (!parent->first->cachedValue) {
parent->first->cachedValue = root->db->getAttr(
parent->first->getKey(), root->state.symbols);
parent->first->cachedValue = root->db->getAttr(parent->first->getKey());
assert(parent->first->cachedValue);
}
return {parent->first->cachedValue->first, parent->second};
@ -369,12 +375,12 @@ std::vector<Symbol> AttrCursor::getAttrPath(Symbol name) const
std::string AttrCursor::getAttrPathStr() const
{
return concatStringsSep(".", getAttrPath());
return concatStringsSep(".", root->state.symbols.resolve(getAttrPath()));
}
std::string AttrCursor::getAttrPathStr(Symbol name) const
{
return concatStringsSep(".", getAttrPath(name));
return concatStringsSep(".", root->state.symbols.resolve(getAttrPath(name)));
}
Value & AttrCursor::forceValue()
@ -414,25 +420,25 @@ Suggestions AttrCursor::getSuggestionsForAttr(Symbol name)
auto attrNames = getAttrs();
std::set<std::string> strAttrNames;
for (auto & name : attrNames)
strAttrNames.insert(std::string(name));
strAttrNames.insert(root->state.symbols[name]);
return Suggestions::bestMatches(strAttrNames, name);
return Suggestions::bestMatches(strAttrNames, root->state.symbols[name]);
}
std::shared_ptr<AttrCursor> AttrCursor::maybeGetAttr(Symbol name, bool forceErrors)
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey(), root->state.symbols);
cachedValue = root->db->getAttr(getKey());
if (cachedValue) {
if (auto attrs = std::get_if<std::vector<Symbol>>(&cachedValue->second)) {
for (auto & attr : *attrs)
if (attr == name)
return std::make_shared<AttrCursor>(root, std::make_pair(shared_from_this(), name));
return std::make_shared<AttrCursor>(root, std::make_pair(shared_from_this(), attr));
return nullptr;
} else if (std::get_if<placeholder_t>(&cachedValue->second)) {
auto attr = root->db->getAttr({cachedValue->first, name}, root->state.symbols);
auto attr = root->db->getAttr({cachedValue->first, name});
if (attr) {
if (std::get_if<missing_t>(&attr->second))
return nullptr;
@ -522,7 +528,7 @@ std::string AttrCursor::getString()
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey(), root->state.symbols);
cachedValue = root->db->getAttr(getKey());
if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
if (auto s = std::get_if<string_t>(&cachedValue->second)) {
debug("using cached string attribute '%s'", getAttrPathStr());
@ -552,7 +558,7 @@ string_t AttrCursor::getStringWithContext()
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey(), root->state.symbols);
cachedValue = root->db->getAttr(getKey());
if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
if (auto s = std::get_if<string_t>(&cachedValue->second)) {
bool valid = true;
@ -594,7 +600,7 @@ bool AttrCursor::getBool()
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey(), root->state.symbols);
cachedValue = root->db->getAttr(getKey());
if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
if (auto b = std::get_if<bool>(&cachedValue->second)) {
debug("using cached Boolean attribute '%s'", getAttrPathStr());
@ -624,7 +630,7 @@ std::vector<Symbol> AttrCursor::getAttrs()
{
if (root->db) {
if (!cachedValue)
cachedValue = root->db->getAttr(getKey(), root->state.symbols);
cachedValue = root->db->getAttr(getKey());
if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
if (auto attrs = std::get_if<std::vector<Symbol>>(&cachedValue->second)) {
debug("using cached attrset attribute '%s'", getAttrPathStr());
@ -650,8 +656,9 @@ std::vector<Symbol> AttrCursor::getAttrs()
std::vector<Symbol> attrs;
for (auto & attr : *getValue().attrs)
attrs.push_back(attr.name);
std::sort(attrs.begin(), attrs.end(), [](const Symbol & a, const Symbol & b) {
return (const std::string &) a < (const std::string &) b;
std::sort(attrs.begin(), attrs.end(), [&](Symbol a, Symbol b) {
std::string_view sa = root->state.symbols[a], sb = root->state.symbols[b];
return sa < sb;
});
if (root->db)

4
src/libexpr/eval-cache.hh
View file

@ -33,7 +33,7 @@ public:
EvalState & state,
RootLoader rootLoader);
std::shared_ptr<AttrCursor> getRoot();
ref<AttrCursor> getRoot();
};
enum AttrType {
@ -104,6 +104,8 @@ public:
ref<AttrCursor> getAttr(std::string_view name);
/* Get an attribute along a chain of attrsets. Note that this does
not auto-call functors or functions. */
OrSuggestions<ref<AttrCursor>> findAlongAttrPath(const std::vector<Symbol> & attrPath, bool force = false);
std::string getString();

40
src/libexpr/eval-inline.hh
View file

@ -2,42 +2,8 @@
#include "eval.hh"
#define LocalNoInline(f) static f __attribute__((noinline)); f
#define LocalNoInlineNoReturn(f) static f __attribute__((noinline, noreturn)); f
namespace nix {
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, EvalState &evalState))
{
auto error = EvalError({
.msg = hintfmt(s),
.errPos = pos
});
if (debuggerHook && !evalState.debugTraces.empty()) {
DebugTrace &last = evalState.debugTraces.front();
debuggerHook(&error, last.env, last.expr);
}
throw error;
}
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const Value & v, EvalState &evalState))
{
auto error = TypeError({
.msg = hintfmt(s, showType(v)),
.errPos = pos
});
if (debuggerHook && !evalState.debugTraces.empty()) {
DebugTrace &last = evalState.debugTraces.front();
debuggerHook(&error, last.env, last.expr);
}
throw error;
}
/* Note: Various places expect the allocated memory to be zeroed. */
[[gnu::always_inline]]
inline void * allocBytes(size_t n)
@ -113,7 +79,7 @@ Env & EvalState::allocEnv(size_t size)
[[gnu::always_inline]]
void EvalState::forceValue(Value & v, const Pos & pos)
void EvalState::forceValue(Value & v, const PosIdx pos)
{
forceValue(v, [&]() { return pos; });
}
@ -142,7 +108,7 @@ void EvalState::forceValue(Value & v, Callable getPos)
[[gnu::always_inline]]
inline void EvalState::forceAttrs(Value & v, const Pos & pos)
inline void EvalState::forceAttrs(Value & v, const PosIdx pos)
{
forceAttrs(v, [&]() { return pos; });
}
@ -159,7 +125,7 @@ inline void EvalState::forceAttrs(Value & v, Callable getPos)
[[gnu::always_inline]]
inline void EvalState::forceList(Value & v, const Pos & pos)
inline void EvalState::forceList(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (!v.isList())

301
src/libexpr/eval.cc
View file

@ -96,7 +96,8 @@ RootValue allocRootValue(Value * v)
}
void Value::print(std::ostream & str, std::set<const void *> * seen) const
void Value::print(const SymbolTable & symbols, std::ostream & str,
std::set<const void *> * seen) const
{
checkInterrupt();
@ -129,9 +130,9 @@ void Value::print(std::ostream & str, std::set<const void *> * seen) const
str << "«repeated»";
else {
str << "{ ";
for (auto & i : attrs->lexicographicOrder()) {
str << i->name << " = ";
i->value->print(str, seen);
for (auto & i : attrs->lexicographicOrder(symbols)) {
str << symbols[i->name] << " = ";
i->value->print(symbols, str, seen);
str << "; ";
}
str << "}";
@ -146,7 +147,7 @@ void Value::print(std::ostream & str, std::set<const void *> * seen) const
else {
str << "[ ";
for (auto v2 : listItems()) {
v2->print(str, seen);
v2->print(symbols, str, seen);
str << " ";
}
str << "]";
@ -177,17 +178,18 @@ void Value::print(std::ostream & str, std::set<const void *> * seen) const
}
void Value::print(std::ostream & str, bool showRepeated) const
void Value::print(const SymbolTable & symbols, std::ostream & str, bool showRepeated) const
{
std::set<const void *> seen;
print(str, showRepeated ? nullptr : &seen);
print(symbols, str, showRepeated ? nullptr : &seen);
}
std::ostream & operator << (std::ostream & str, const Value & v)
std::string printValue(const EvalState & state, const Value & v)
{
v.print(str, false);
return str;
std::ostringstream out;
v.print(state.symbols, out);
return out.str();
}
@ -236,10 +238,10 @@ std::string showType(const Value & v)
}
}
Pos Value::determinePos(const Pos & pos) const
PosIdx Value::determinePos(const PosIdx pos) const
{
switch (internalType) {
case tAttrs: return *attrs->pos;
case tAttrs: return attrs->pos;
case tLambda: return lambda.fun->pos;
case tApp: return app.left->determinePos(pos);
default: return pos;
@ -308,7 +310,7 @@ static BoehmGCStackAllocator boehmGCStackAllocator;
static Symbol getName(const AttrName & name, EvalState & state, Env & env)
{
if (name.symbol.set()) {
if (name.symbol) {
return name.symbol;
} else {
Value nameValue;
@ -641,20 +643,20 @@ Value * EvalState::addPrimOp(const std::string & name,
size_t arity, PrimOpFun primOp)
{
auto name2 = name.substr(0, 2) == "__" ? name.substr(2) : name;
Symbol sym = symbols.create(name2);
auto sym = symbols.create(name2);
/* Hack to make constants lazy: turn them into a application of
the primop to a dummy value. */
if (arity == 0) {
auto vPrimOp = allocValue();
vPrimOp->mkPrimOp(new PrimOp { .fun = primOp, .arity = 1, .name = sym });
vPrimOp->mkPrimOp(new PrimOp { .fun = primOp, .arity = 1, .name = name2 });
Value v;
v.mkApp(vPrimOp, vPrimOp);
return addConstant(name, v);
}
Value * v = allocValue();
v->mkPrimOp(new PrimOp { .fun = primOp, .arity = arity, .name = sym });
v->mkPrimOp(new PrimOp { .fun = primOp, .arity = arity, .name = name2 });
staticBaseEnv->vars.emplace_back(symbols.create(name), baseEnvDispl);
baseEnv.values[baseEnvDispl++] = v;
baseEnv.values[0]->attrs->push_back(Attr(sym, v));
@ -669,21 +671,21 @@ Value * EvalState::addPrimOp(PrimOp && primOp)
if (primOp.arity == 0) {
primOp.arity = 1;
auto vPrimOp = allocValue();
vPrimOp->mkPrimOp(new PrimOp(std::move(primOp)));
vPrimOp->mkPrimOp(new PrimOp(primOp));
Value v;
v.mkApp(vPrimOp, vPrimOp);
return addConstant(primOp.name, v);
}
Symbol envName = primOp.name;
auto envName = symbols.create(primOp.name);
if (hasPrefix(primOp.name, "__"))
primOp.name = symbols.create(std::string(primOp.name, 2));
primOp.name = primOp.name.substr(2);
Value * v = allocValue();
v->mkPrimOp(new PrimOp(std::move(primOp)));
v->mkPrimOp(new PrimOp(primOp));
staticBaseEnv->vars.emplace_back(envName, baseEnvDispl);
baseEnv.values[baseEnvDispl++] = v;
baseEnv.values[0]->attrs->push_back(Attr(primOp.name, v));
baseEnv.values[0]->attrs->push_back(Attr(symbols.create(primOp.name), v));
return v;
}
@ -700,7 +702,7 @@ std::optional<EvalState::Doc> EvalState::getDoc(Value & v)
auto v2 = &v;
if (v2->primOp->doc)
return Doc {
.pos = noPos,
.pos = {},
.name = v2->primOp->name,
.arity = v2->primOp->arity,
.args = v2->primOp->args,
@ -819,12 +821,42 @@ valmap * mapStaticEnvBindings(const StaticEnv &se, const Env &env)
evaluator. So here are some helper functions for throwing
exceptions. */
LocalNoInlineNoReturn(void throwEvalError(const char * s, const std::string & s2, EvalState &evalState))
void EvalState::throwEvalError(const PosIdx pos, const char * s) const
{
auto error = EvalError({
.msg = hintfmt(s),
.errPos = positions[pos]
});
if (debuggerHook && !debugTraces.empty()) {
DebugTrace &last = debugTraces.front();
debuggerHook(&error, last.env, last.expr);
}
throw error;
}
void EvalState::throwTypeError(const PosIdx pos, const char * s, const Value & v) const
{
auto error = TypeError({
.msg = hintfmt(s, showType(v)),
.errPos = positions[pos]
});
if (debuggerHook && !debugTraces.empty()) {
DebugTrace &last = debugTraces.front();
debuggerHook(&error, last.env, last.expr);
}
throw error;
}
void EvalState::throwEvalError(const char * s, const std::string & s2) const
{
auto error = EvalError(s, s2);
if (debuggerHook && !evalState.debugTraces.empty()) {
DebugTrace &last = evalState.debugTraces.front();
if (debuggerHook && !debugTraces.empty()) {
DebugTrace &last = debugTraces.front();
debuggerHook(&error, last.env, last.expr);
}
@ -840,12 +872,13 @@ void EvalState::debugLastTrace(Error & e) {
}
}
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const Suggestions & suggestions, const char * s, const std::string & s2, Env & env, Expr &expr))
void EvalState::throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const std::string & s2, Env & env, Expr &expr) const
{
auto error = EvalError({
.msg = hintfmt(s, s2),
.errPos = pos,
.suggestions = suggestions
.errPos = positions[pos],
.suggestions = suggestions,
});
if (debuggerHook)
@ -854,19 +887,19 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const Suggestions & s
throw error;
}
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const std::string & s2, EvalState &evalState))
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const
{
auto error = EvalError({
.msg = hintfmt(s, s2),
.errPos = pos
.errPos = positions[pos]
});
evalState.debugLastTrace(error);
debugLastTrace(error);
throw error;
}
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, Env & env, Expr &expr))
void EvalState::throwEvalError(const char * s, const std::string & s2, const std::string & s3, Env & env, Expr &expr) const
{
auto error = EvalError({
.msg = hintfmt(s),
@ -879,7 +912,8 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, Env &
throw error;
}
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const std::string & s2, Env & env, Expr &expr))
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
const std::string & s3, Env & env, Expr &expr) const
{
auto error = EvalError({
.msg = hintfmt(s, s2),
@ -892,11 +926,12 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const
throw error;
}
/*
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const std::string & s2, const std::string & s3, EvalState &evalState))
{
auto error = EvalError({
.msg = hintfmt(s, s2, s3),
.errPos = pos
.errPos = positions[pos]
});
evalState.debugLastTrace(error);
@ -915,13 +950,14 @@ LocalNoInlineNoReturn(void throwEvalError(const char * s, const std::string & s2
throw error;
}
*/
LocalNoInlineNoReturn(void throwEvalError(const Pos & p1, const char * s, const Symbol & sym, const Pos & p2, Env & env, Expr &expr))
void EvalState::throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2, Env & env, Expr &expr) const
{
// p1 is where the error occurred; p2 is a position mentioned in the message.
auto error = EvalError({
.msg = hintfmt(s, sym, p2),
.errPos = p1
.msg = hintfmt(s, symbols[sym], positions[p2]),
.errPos = positions[p1]
});
if (debuggerHook)
@ -930,11 +966,11 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & p1, const char * s, const
throw error;
}
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, EvalState &evalState))
void EvalState::throwTypeError(const PosIdx pos, const char * s) const
{
auto error = TypeError({
.msg = hintfmt(s),
.errPos = pos
.errPos = positions[pos]
});
evalState.debugLastTrace(error);
@ -942,12 +978,12 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, EvalS
throw error;
}
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const Value & v, Env & env, Expr &expr))
void EvalState::throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun,
const Symbol s2, Env & env, Expr &expr) const
{
auto error = TypeError({
.msg = hintfmt(s, v),
.errPos = pos
.msg = hintfmt(s, fun.showNamePos(*this), symbols[s2]),
.errPos = positions[pos]
});
if (debuggerHook)
@ -956,11 +992,13 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
throw error;
}
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const ExprLambda & fun, const Symbol & s2, Env & env, Expr &expr))
void EvalState::throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const ExprLambda & fun, const Symbol s2, Env & env, Expr &expr) const
{
auto error = TypeError({
.msg = hintfmt(s, fun.showNamePos(), s2),
.errPos = pos,
auto error = TypeError(ErrorInfo {
.msg = hintfmt(s, fun.showNamePos(*this), symbols[s2]),
.errPos = positions[pos],
.suggestions = suggestions,
});
if (debuggerHook)
@ -969,7 +1007,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
throw error;
}
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const Suggestions & suggestions, const char * s, const ExprLambda & fun, const Symbol & s2, Env & env, Expr &expr))
void EvalState::throwTypeError(const char * s, const Value & v, Env & env, Expr &expr) const
{
auto error = TypeError({
.msg = hintfmt(s, fun.showNamePos(), s2),
@ -983,11 +1021,11 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const Suggestions & s
throw error;
}
LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s, const std::string & s1, Env & env, Expr &expr))
void EvalState::throwAssertionError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr) const
{
auto error = AssertionError({
.msg = hintfmt(s, s1),
.errPos = pos
.errPos = positions[pos]
});
if (debuggerHook)
@ -996,11 +1034,11 @@ LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s,
throw error;
}
LocalNoInlineNoReturn(void throwUndefinedVarError(const Pos & pos, const char * s, const std::string & s1, Env & env, const Expr &expr))
void EvalState::throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr) const
{
auto error = UndefinedVarError({
.msg = hintfmt(s, s1),
.errPos = pos
.errPos = positions[pos]
});
if (debuggerHook)
@ -1009,11 +1047,11 @@ LocalNoInlineNoReturn(void throwUndefinedVarError(const Pos & pos, const char *
throw error;
}
LocalNoInlineNoReturn(void throwMissingArgumentError(const Pos & pos, const char * s, const std::string & s1, Env & env, Expr &expr))
void EvalState::throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr) const
{
auto error = MissingArgumentError({
.msg = hintfmt(s, s1),
.errPos = pos
.errPos = positions[pos]
});
if (debuggerHook)
@ -1022,14 +1060,14 @@ LocalNoInlineNoReturn(void throwMissingArgumentError(const Pos & pos, const char
throw error;
}
LocalNoInline(void addErrorTrace(Error & e, const char * s, const std::string & s2))
void EvalState::addErrorTrace(Error & e, const char * s, const std::string & s2) const
{
e.addTrace(std::nullopt, s, s2);
}
LocalNoInline(void addErrorTrace(Error & e, const Pos & pos, const char * s, const std::string & s2))
void EvalState::addErrorTrace(Error & e, const PosIdx pos, const char * s, const std::string & s2) const
{
e.addTrace(pos, s, s2);
e.addTrace(positions[pos], s, s2);
}
LocalNoInline(std::unique_ptr<DebugTraceStacker>
@ -1108,12 +1146,11 @@ inline Value * EvalState::lookupVar(Env * env, const ExprVar & var, bool noEval)
}
Bindings::iterator j = env->values[0]->attrs->find(var.name);
if (j != env->values[0]->attrs->end()) {
if (countCalls) attrSelects[*j->pos]++;
if (countCalls) attrSelects[j->pos]++;
return j->value;
}
if (!env->prevWith) {
throwUndefinedVarError(var.pos, "undefined variable '%1%'", var.name, *env, var);
}
if (!env->prevWith)
throwUndefinedVarError(var.pos, "undefined variable '%1%'", symbols[var.name], *env, var);
for (size_t l = env->prevWith; l; --l, env = env->up) ;
}
}
@ -1142,13 +1179,14 @@ void EvalState::mkThunk_(Value & v, Expr * expr)
}
void EvalState::mkPos(Value & v, ptr<Pos> pos)
void EvalState::mkPos(Value & v, PosIdx p)
{
if (pos->file.set()) {
auto pos = positions[p];
if (!pos.file.empty()) {
auto attrs = buildBindings(3);
attrs.alloc(sFile).mkString(pos->file);
attrs.alloc(sLine).mkInt(pos->line);
attrs.alloc(sColumn).mkInt(pos->column);
attrs.alloc(sFile).mkString(pos.file);
attrs.alloc(sLine).mkInt(pos.line);
attrs.alloc(sColumn).mkInt(pos.column);
v.mkAttrs(attrs);
} else
v.mkNull();
@ -1291,7 +1329,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e)
}
inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos)
inline bool EvalState::evalBool(Env & env, Expr * e, const PosIdx pos)
{
Value v;
e->eval(*this, env, v);
@ -1365,7 +1403,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
} else
vAttr = i.second.e->maybeThunk(state, i.second.inherited ? env : env2);
env2.values[displ++] = vAttr;
v.attrs->push_back(Attr(i.first, vAttr, ptr(&i.second.pos)));
v.attrs->push_back(Attr(i.first, vAttr, i.second.pos));
}
/* If the rec contains an attribute called `__overrides', then
@ -1397,7 +1435,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
else
for (auto & i : attrs)
v.attrs->push_back(Attr(i.first, i.second.e->maybeThunk(state, env), ptr(&i.second.pos)));
v.attrs->push_back(Attr(i.first, i.second.e->maybeThunk(state, env), i.second.pos));
/* Dynamic attrs apply *after* rec and __overrides. */
for (auto & i : dynamicAttrs) {
@ -1407,18 +1445,18 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
if (nameVal.type() == nNull)
continue;
state.forceStringNoCtx(nameVal);
Symbol nameSym = state.symbols.create(nameVal.string.s);
auto nameSym = state.symbols.create(nameVal.string.s);
Bindings::iterator j = v.attrs->find(nameSym);
if (j != v.attrs->end())
throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, *j->pos, env, *this);
state.throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, j->pos, env, *this);
i.valueExpr->setName(nameSym);
/* Keep sorted order so find can catch duplicates */
v.attrs->push_back(Attr(nameSym, i.valueExpr->maybeThunk(state, *dynamicEnv), ptr(&i.pos)));
v.attrs->push_back(Attr(nameSym, i.valueExpr->maybeThunk(state, *dynamicEnv), i.pos));
v.attrs->sort(); // FIXME: inefficient
}
v.attrs->pos = ptr(&pos);
v.attrs->pos = pos;
}
@ -1463,10 +1501,12 @@ static std::string showAttrPath(EvalState & state, Env & env, const AttrPath & a
for (auto & i : attrPath) {
if (!first) out << '.'; else first = false;
try {
out << getName(i, state, env);
out << state.symbols[getName(i, state, env)];
} catch (Error & e) {
assert(!i.symbol.set());
out << "\"${" << *i.expr << "}\"";
assert(!i.symbol);
out << "\"${";
i.expr->show(state.symbols, out);
out << "}\"";
}
}
return out.str();
@ -1476,7 +1516,7 @@ static std::string showAttrPath(EvalState & state, Env & env, const AttrPath & a
void ExprSelect::eval(EvalState & state, Env & env, Value & v)
{
Value vTmp;
ptr<Pos> pos2(&noPos);
PosIdx pos2;
Value * vAttrs = &vTmp;
e->eval(state, env, vTmp);
@ -1496,7 +1536,7 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
for (auto & i : attrPath) {
state.nrLookups++;
Bindings::iterator j;
Symbol name = getName(i, state, env);
auto name = getName(i, state, env);
if (def) {
state.forceValue(*vAttrs, pos);
if (vAttrs->type() != nAttrs ||
@ -1510,23 +1550,24 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
if ((j = vAttrs->attrs->find(name)) == vAttrs->attrs->end()) {
std::set<std::string> allAttrNames;
for (auto & attr : *vAttrs->attrs)
allAttrNames.insert(attr.name);
throwEvalError(
allAttrNames.insert(state.symbols[attr.name]);
state.throwEvalError(
pos,
Suggestions::bestMatches(allAttrNames, name),
"attribute '%1%' missing", name, env, *this);
Suggestions::bestMatches(allAttrNames, state.symbols[name]),
"attribute '%1%' missing", state.symbols[name], env, *this);
}
}
vAttrs = j->value;
pos2 = j->pos;
if (state.countCalls) state.attrSelects[*pos2]++;
if (state.countCalls) state.attrSelects[pos2]++;
}
state.forceValue(*vAttrs, (*pos2 != noPos ? *pos2 : this->pos ) );
state.forceValue(*vAttrs, (pos2 ? pos2 : this->pos ) );
} catch (Error & e) {
if (*pos2 != noPos && pos2->file != state.sDerivationNix)
addErrorTrace(e, *pos2, "while evaluating the attribute '%1%'",
auto pos2r = state.positions[pos2];
if (pos2 && pos2r.file != state.derivationNixPath)
state.addErrorTrace(e, pos2, "while evaluating the attribute '%1%'",
showAttrPath(state, env, attrPath));
throw;
}
@ -1545,7 +1586,7 @@ void ExprOpHasAttr::eval(EvalState & state, Env & env, Value & v)
for (auto & i : attrPath) {
state.forceValue(*vAttrs, noPos);
Bindings::iterator j;
Symbol name = getName(i, state, env);
auto name = getName(i, state, env);
if (vAttrs->type() != nAttrs ||
(j = vAttrs->attrs->find(name)) == vAttrs->attrs->end())
{
@ -1566,9 +1607,11 @@ void ExprLambda::eval(EvalState & state, Env & env, Value & v)
}
void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const Pos & pos)
void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const PosIdx pos)
{
auto trace = evalSettings.traceFunctionCalls ? std::make_unique<FunctionCallTrace>(pos) : nullptr;
auto trace = evalSettings.traceFunctionCalls
? std::make_unique<FunctionCallTrace>(positions[pos])
: nullptr;
forceValue(fun, pos);
@ -1593,7 +1636,7 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
ExprLambda & lambda(*vCur.lambda.fun);
auto size =
(lambda.arg.empty() ? 0 : 1) +
(!lambda.arg ? 0 : 1) +
(lambda.hasFormals() ? lambda.formals->formals.size() : 0);
Env & env2(allocEnv(size));
env2.up = vCur.lambda.env;
@ -1605,7 +1648,7 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
else {
forceAttrs(*args[0], pos);
if (!lambda.arg.empty())
if (lambda.arg)
env2.values[displ++] = args[0];
/* For each formal argument, get the actual argument. If
@ -1633,10 +1676,10 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
if (!lambda.formals->has(i.name)) {
std::set<std::string> formalNames;
for (auto & formal : lambda.formals->formals)
formalNames.insert(formal.name);
formalNames.insert(symbols[formal.name]);
throwTypeError(
pos,
Suggestions::bestMatches(formalNames, i.name),
Suggestions::bestMatches(formalNames, symbols[i.name]),
"%1% called with unexpected argument '%2%'",
lambda, i.name, *fun.lambda.env, lambda);
}
@ -1662,8 +1705,8 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
} catch (Error & e) {
if (loggerSettings.showTrace.get()) {
addErrorTrace(e, lambda.pos, "while evaluating %s",
(lambda.name.set()
? "'" + (const std::string &) lambda.name + "'"
(lambda.name
? concatStrings("'", symbols[lambda.name], "'")
: "anonymous lambda"));
addErrorTrace(e, pos, "from call site%s", "");
}
@ -1812,8 +1855,7 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
Nix attempted to evaluate a function as a top level expression; in
this case it must have its arguments supplied either by default
values, or passed explicitly with '--arg' or '--argstr'. See
https://nixos.org/manual/nix/stable/#ss-functions.)",
i.name,
https://nixos.org/manual/nix/stable/#ss-functions.)", symbols[i.name],,
*fun.lambda.env, *fun.lambda.fun);
}
}
@ -1845,8 +1887,8 @@ void ExprAssert::eval(EvalState & state, Env & env, Value & v)
{
if (!state.evalBool(env, cond, pos)) {
std::ostringstream out;
cond->show(out);
throwAssertionError(pos, "assertion '%1%' failed", out.str(), env, *this);
cond->show(state.symbols, out);
state.throwAssertionError(pos, "assertion '%1%' failed", out.str(), env, *this);
}
body->eval(state, env, v);
}
@ -1939,7 +1981,7 @@ void ExprOpConcatLists::eval(EvalState & state, Env & env, Value & v)
}
void EvalState::concatLists(Value & v, size_t nrLists, Value * * lists, const Pos & pos)
void EvalState::concatLists(Value & v, size_t nrLists, Value * * lists, const PosIdx pos)
{
nrListConcats++;
@ -2022,16 +2064,15 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
firstType = nFloat;
nf = n;
nf += vTmp.fpoint;
} else {
throwEvalError(i_pos, "cannot add %1% to an integer", showType(vTmp), env, *this);
}
} else
state.throwEvalError(i_pos, "cannot add %1% to an integer", showType(vTmp), env, *this);
} else if (firstType == nFloat) {
if (vTmp.type() == nInt) {
nf += vTmp.integer;
} else if (vTmp.type() == nFloat) {
nf += vTmp.fpoint;
} else
throwEvalError(i_pos, "cannot add %1% to a float", showType(vTmp), env, *this);
state.throwEvalError(i_pos, "cannot add %1% to a float", showType(vTmp), env, *this);
} else {
if (s.empty()) s.reserve(es->size());
/* skip canonization of first path, which would only be not
@ -2051,7 +2092,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
v.mkFloat(nf);
else if (firstType == nPath) {
if (!context.empty())
throwEvalError(pos, "a string that refers to a store path cannot be appended to a path", env, *this);
state.throwEvalError(pos, "a string that refers to a store path cannot be appended to a path", env, *this););
v.mkPath(canonPath(str()));
} else
v.mkStringMove(c_str(), context);
@ -2060,7 +2101,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
void ExprPos::eval(EvalState & state, Env & env, Value & v)
{
state.mkPos(v, ptr(&pos));
state.mkPos(v, pos);
}
@ -2090,7 +2131,7 @@ void EvalState::forceValueDeep(Value & v)
recurse(*i.value);
} catch (Error & e) {
addErrorTrace(e, *i.pos, "while evaluating the attribute '%1%'", i.name);
addErrorTrace(e, i.pos, "while evaluating the attribute '%1%'", symbols[i.name]);
throw;
}
}
@ -2105,7 +2146,7 @@ void EvalState::forceValueDeep(Value & v)
}
NixInt EvalState::forceInt(Value & v, const Pos & pos)
NixInt EvalState::forceInt(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (v.type() != nInt)
@ -2115,7 +2156,7 @@ NixInt EvalState::forceInt(Value & v, const Pos & pos)
}
NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
NixFloat EvalState::forceFloat(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (v.type() == nInt)
@ -2126,7 +2167,7 @@ NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
}
bool EvalState::forceBool(Value & v, const Pos & pos)
bool EvalState::forceBool(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (v.type() != nBool)
@ -2141,7 +2182,7 @@ bool EvalState::isFunctor(Value & fun)
}
void EvalState::forceFunction(Value & v, const Pos & pos)
void EvalState::forceFunction(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (v.type() != nFunction && !isFunctor(v))
@ -2149,7 +2190,7 @@ void EvalState::forceFunction(Value & v, const Pos & pos)
}
std::string_view EvalState::forceString(Value & v, const Pos & pos)
std::string_view EvalState::forceString(Value & v, const PosIdx pos)
{
forceValue(v, pos);
if (v.type() != nString) {
@ -2199,7 +2240,7 @@ NixStringContext Value::getContext(const Store & store)
}
std::string_view EvalState::forceString(Value & v, PathSet & context, const Pos & pos)
std::string_view EvalState::forceString(Value & v, PathSet & context, const PosIdx pos)
{
auto s = forceString(v, pos);
copyContext(v, context);
@ -2207,7 +2248,7 @@ std::string_view EvalState::forceString(Value & v, PathSet & context, const Pos
}
std::string_view EvalState::forceStringNoCtx(Value & v, const Pos & pos)
std::string_view EvalState::forceStringNoCtx(Value & v, const PosIdx pos)
{
auto s = forceString(v, pos);
if (v.string.context) {
@ -2227,13 +2268,13 @@ bool EvalState::isDerivation(Value & v)
if (v.type() != nAttrs) return false;
Bindings::iterator i = v.attrs->find(sType);
if (i == v.attrs->end()) return false;
forceValue(*i->value, *i->pos);
forceValue(*i->value, i->pos);
if (i->value->type() != nString) return false;
return strcmp(i->value->string.s, "derivation") == 0;
}
std::optional<std::string> EvalState::tryAttrsToString(const Pos & pos, Value & v,
std::optional<std::string> EvalState::tryAttrsToString(const PosIdx pos, Value & v,
PathSet & context, bool coerceMore, bool copyToStore)
{
auto i = v.attrs->find(sToString);
@ -2246,7 +2287,7 @@ std::optional<std::string> EvalState::tryAttrsToString(const Pos & pos, Value &
return {};
}
BackedStringView EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context,
BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet & context,
bool coerceMore, bool copyToStore, bool canonicalizePath)
{
forceValue(v, pos);
@ -2276,7 +2317,7 @@ BackedStringView EvalState::coerceToString(const Pos & pos, Value & v, PathSet &
}
if (v.type() == nExternal)
return v.external->coerceToString(pos, context, coerceMore, copyToStore);
return v.external->coerceToString(positions[pos], context, coerceMore, copyToStore);
if (coerceMore) {
/* Note that `false' is represented as an empty string for
@ -2328,7 +2369,7 @@ std::string EvalState::copyPathToStore(PathSet & context, const Path & path)
}
Path EvalState::coerceToPath(const Pos & pos, Value & v, PathSet & context)
Path EvalState::coerceToPath(const PosIdx pos, Value & v, PathSet & context)
{
auto path = coerceToString(pos, v, context, false, false).toOwned();
if (path == "" || path[0] != '/')
@ -2337,14 +2378,14 @@ Path EvalState::coerceToPath(const Pos & pos, Value & v, PathSet & context)
}
StorePath EvalState::coerceToStorePath(const Pos & pos, Value & v, PathSet & context)
StorePath EvalState::coerceToStorePath(const PosIdx pos, Value & v, PathSet & context)
{
auto path = coerceToString(pos, v, context, false, false).toOwned();
if (auto storePath = store->maybeParseStorePath(path))
return *storePath;
throw EvalError({
.msg = hintfmt("path '%1%' is not in the Nix store", path),
.errPos = pos
.errPos = positions[pos]
});
}
@ -2514,14 +2555,14 @@ void EvalState::printStats()
auto list = topObj.list("functions");
for (auto & i : functionCalls) {
auto obj = list.object();
if (i.first->name.set())
if (i.first->name)
obj.attr("name", (const std::string &) i.first->name);
else
obj.attr("name", nullptr);
if (i.first->pos) {
obj.attr("file", (const std::string &) i.first->pos.file);
obj.attr("line", i.first->pos.line);
obj.attr("column", i.first->pos.column);
if (auto pos = positions[i.first->pos]) {
obj.attr("file", (const std::string &) pos.file);
obj.attr("line", pos.line);
obj.attr("column", pos.column);
}
obj.attr("count", i.second);
}
@ -2530,10 +2571,10 @@ void EvalState::printStats()
auto list = topObj.list("attributes");
for (auto & i : attrSelects) {
auto obj = list.object();
if (i.first) {
obj.attr("file", (const std::string &) i.first.file);
obj.attr("line", i.first.line);
obj.attr("column", i.first.column);
if (auto pos = positions[i.first]) {
obj.attr("file", (const std::string &) pos.file);
obj.attr("line", pos.line);
obj.attr("column", pos.column);
}
obj.attr("count", i.second);
}

103
src/libexpr/eval.hh
View file

@ -23,7 +23,7 @@ class StorePath;
enum RepairFlag : bool;
typedef void (* PrimOpFun) (EvalState & state, const Pos & pos, Value * * args, Value & v);
typedef void (* PrimOpFun) (EvalState & state, const PosIdx pos, Value * * args, Value & v);
void printEnvBindings(const Expr &expr, const Env &env);
void printEnvBindings(const StaticEnv &se, const Env &env, int lvl = 0);
@ -32,7 +32,7 @@ struct PrimOp
{
PrimOpFun fun;
size_t arity;
Symbol name;
std::string name;
std::vector<std::string> args;
const char * doc = nullptr;
};
@ -57,7 +57,8 @@ void copyContext(const Value & v, PathSet & context);
typedef std::map<Path, StorePath> SrcToStore;
std::ostream & operator << (std::ostream & str, const Value & v);
std::ostream & printValue(const EvalState & state, std::ostream & str, const Value & v);
std::string printValue(const EvalState & state, const Value & v);
typedef std::pair<std::string, std::string> SearchPathElem;
@ -84,6 +85,9 @@ class EvalState
{
public:
SymbolTable symbols;
PosTable positions;
static inline std::string derivationNixPath = "//builtin/derivation.nix";
const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName, sValue,
sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls,
@ -222,7 +226,7 @@ public:
/* Look up a file in the search path. */
Path findFile(const std::string_view path);
Path findFile(SearchPath & searchPath, const std::string_view path, const Pos & pos = noPos);
Path findFile(SearchPath & searchPath, const std::string_view path, const PosIdx pos = noPos);
/* If the specified search path element is a URI, download it. */
std::pair<bool, std::string> resolveSearchPathElem(const SearchPathElem & elem);
@ -234,14 +238,14 @@ public:
/* Evaluation the expression, then verify that it has the expected
type. */
inline bool evalBool(Env & env, Expr * e);
inline bool evalBool(Env & env, Expr * e, const Pos & pos);
inline bool evalBool(Env & env, Expr * e, const PosIdx pos);
inline void evalAttrs(Env & env, Expr * e, Value & v);
/* If `v' is a thunk, enter it and overwrite `v' with the result
of the evaluation of the thunk. If `v' is a delayed function
application, call the function and overwrite `v' with the
result. Otherwise, this is a no-op. */
inline void forceValue(Value & v, const Pos & pos);
inline void forceValue(Value & v, const PosIdx pos);
template <typename Callable>
inline void forceValue(Value & v, Callable getPos);
@ -251,33 +255,72 @@ public:
void forceValueDeep(Value & v);
/* Force `v', and then verify that it has the expected type. */
NixInt forceInt(Value & v, const Pos & pos);
NixFloat forceFloat(Value & v, const Pos & pos);
bool forceBool(Value & v, const Pos & pos);
NixInt forceInt(Value & v, const PosIdx pos);
NixFloat forceFloat(Value & v, const PosIdx pos);
bool forceBool(Value & v, const PosIdx pos);
void forceAttrs(Value & v, const Pos & pos);
void forceAttrs(Value & v, const PosIdx pos);
template <typename Callable>
inline void forceAttrs(Value & v, Callable getPos);
inline void forceList(Value & v, const Pos & pos);
void forceFunction(Value & v, const Pos & pos); // either lambda or primop
std::string_view forceString(Value & v, const Pos & pos = noPos);
std::string_view forceString(Value & v, PathSet & context, const Pos & pos = noPos);
std::string_view forceStringNoCtx(Value & v, const Pos & pos = noPos);
inline void forceList(Value & v, const PosIdx pos);
void forceFunction(Value & v, const PosIdx pos); // either lambda or primop
std::string_view forceString(Value & v, const PosIdx pos = noPos);
std::string_view forceString(Value & v, PathSet & context, const PosIdx pos = noPos);
std::string_view forceStringNoCtx(Value & v, const PosIdx pos = noPos);
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const PosIdx pos, const char * s) const;
[[gnu::noinline, gnu::noreturn]]
void throwTypeError(const PosIdx pos, const char * s, const Value & v) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const char * s, const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const char * s, const std::string & s2, const std::string & s3) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3) const;
[[gnu::noinline, gnu::noreturn]]
void throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2) const;
[[gnu::noinline, gnu::noreturn]]
void throwTypeError(const PosIdx pos, const char * s) const;
[[gnu::noinline, gnu::noreturn]]
void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol s2) const;
[[gnu::noinline, gnu::noreturn]]
void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const ExprLambda & fun, const Symbol s2) const;
[[gnu::noinline, gnu::noreturn]]
void throwTypeError(const char * s, const Value & v) const;
[[gnu::noinline, gnu::noreturn]]
void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline, gnu::noreturn]]
void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline, gnu::noreturn]]
void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline]]
void addErrorTrace(Error & e, const char * s, const std::string & s2) const;
[[gnu::noinline]]
void addErrorTrace(Error & e, const PosIdx pos, const char * s, const std::string & s2) const;
public:
/* Return true iff the value `v' denotes a derivation (i.e. a
set with attribute `type = "derivation"'). */
bool isDerivation(Value & v);
std::optional<std::string> tryAttrsToString(const Pos & pos, Value & v,
std::optional<std::string> tryAttrsToString(const PosIdx pos, Value & v,
PathSet & context, bool coerceMore = false, bool copyToStore = true);
/* String coercion. Converts strings, paths and derivations to a
string. If `coerceMore' is set, also converts nulls, integers,
booleans and lists to a string. If `copyToStore' is set,
referenced paths are copied to the Nix store as a side effect. */
BackedStringView coerceToString(const Pos & pos, Value & v, PathSet & context,
BackedStringView coerceToString(const PosIdx pos, Value & v, PathSet & context,
bool coerceMore = false, bool copyToStore = true,
bool canonicalizePath = true);
@ -286,10 +329,10 @@ public:
/* Path coercion. Converts strings, paths and derivations to a
path. The result is guaranteed to be a canonicalised, absolute
path. Nothing is copied to the store. */
Path coerceToPath(const Pos & pos, Value & v, PathSet & context);
Path coerceToPath(const PosIdx pos, Value & v, PathSet & context);
/* Like coerceToPath, but the result must be a store path. */
StorePath coerceToStorePath(const Pos & pos, Value & v, PathSet & context);
StorePath coerceToStorePath(const PosIdx pos, Value & v, PathSet & context);
public:
@ -322,7 +365,7 @@ public:
struct Doc
{
Pos pos;
std::optional<Symbol> name;
std::optional<std::string> name;
size_t arity;
std::vector<std::string> args;
const char * doc;
@ -350,9 +393,9 @@ public:
bool isFunctor(Value & fun);
// FIXME: use std::span
void callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const Pos & pos);
void callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const PosIdx pos);
void callFunction(Value & fun, Value & arg, Value & vRes, const Pos & pos)
void callFunction(Value & fun, Value & arg, Value & vRes, const PosIdx pos)
{
Value * args[] = {&arg};
callFunction(fun, 1, args, vRes, pos);
@ -366,7 +409,7 @@ public:
inline Value * allocValue();
inline Env & allocEnv(size_t size);
Value * allocAttr(Value & vAttrs, const Symbol & name);
Value * allocAttr(Value & vAttrs, Symbol name);
Value * allocAttr(Value & vAttrs, std::string_view name);
Bindings * allocBindings(size_t capacity);
@ -378,9 +421,9 @@ public:
void mkList(Value & v, size_t length);
void mkThunk_(Value & v, Expr * expr);
void mkPos(Value & v, ptr<Pos> pos);
void mkPos(Value & v, PosIdx pos);
void concatLists(Value & v, size_t nrLists, Value * * lists, const Pos & pos);
void concatLists(Value & v, size_t nrLists, Value * * lists, const PosIdx pos);
/* Print statistics. */
void printStats();
@ -408,7 +451,7 @@ private:
bool countCalls;
typedef std::map<Symbol, size_t> PrimOpCalls;
typedef std::map<std::string, size_t> PrimOpCalls;
PrimOpCalls primOpCalls;
typedef std::map<ExprLambda *, size_t> FunctionCalls;
@ -416,7 +459,7 @@ private:
void incrFunctionCall(ExprLambda * fun);
typedef std::map<Pos, size_t> AttrSelects;
typedef std::map<PosIdx, size_t> AttrSelects;
AttrSelects attrSelects;
friend struct ExprOpUpdate;
@ -427,9 +470,9 @@ private:
friend struct ExprFloat;
friend struct ExprPath;
friend struct ExprSelect;
friend void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v);
friend void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v);
friend void prim_split(EvalState & state, const Pos & pos, Value * * args, Value & v);
friend void prim_getAttr(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend void prim_match(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend void prim_split(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend struct Value;
};

88
src/libexpr/flake/flake.cc
View file

@ -72,7 +72,7 @@ static std::tuple<fetchers::Tree, FlakeRef, FlakeRef> fetchOrSubstituteTree(
return {std::move(tree), resolvedRef, lockedRef};
}
static void forceTrivialValue(EvalState & state, Value & value, const Pos & pos)
static void forceTrivialValue(EvalState & state, Value & value, const PosIdx pos)
{
if (value.isThunk() && value.isTrivial())
state.forceValue(value, pos);
@ -80,20 +80,20 @@ static void forceTrivialValue(EvalState & state, Value & value, const Pos & pos)
static void expectType(EvalState & state, ValueType type,
Value & value, const Pos & pos)
Value & value, const PosIdx pos)
{
forceTrivialValue(state, value, pos);
if (value.type() != type)
throw Error("expected %s but got %s at %s",
showType(type), showType(value.type()), pos);
showType(type), showType(value.type()), state.positions[pos]);
}
static std::map<FlakeId, FlakeInput> parseFlakeInputs(
EvalState & state, Value * value, const Pos & pos,
EvalState & state, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath);
static FlakeInput parseFlakeInput(EvalState & state,
const std::string & inputName, Value * value, const Pos & pos,
const std::string & inputName, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath)
{
expectType(state, nAttrs, *value, pos);
@ -111,37 +111,39 @@ static FlakeInput parseFlakeInput(EvalState & state,
for (nix::Attr attr : *(value->attrs)) {
try {
if (attr.name == sUrl) {
expectType(state, nString, *attr.value, *attr.pos);
expectType(state, nString, *attr.value, attr.pos);
url = attr.value->string.s;
attrs.emplace("url", *url);
} else if (attr.name == sFlake) {
expectType(state, nBool, *attr.value, *attr.pos);
expectType(state, nBool, *attr.value, attr.pos);
input.isFlake = attr.value->boolean;
} else if (attr.name == sInputs) {
input.overrides = parseFlakeInputs(state, attr.value, *attr.pos, baseDir, lockRootPath);
input.overrides = parseFlakeInputs(state, attr.value, attr.pos, baseDir, lockRootPath);
} else if (attr.name == sFollows) {
expectType(state, nString, *attr.value, *attr.pos);
expectType(state, nString, *attr.value, attr.pos);
auto follows(parseInputPath(attr.value->string.s));
follows.insert(follows.begin(), lockRootPath.begin(), lockRootPath.end());
input.follows = follows;
} else {
switch (attr.value->type()) {
case nString:
attrs.emplace(attr.name, attr.value->string.s);
attrs.emplace(state.symbols[attr.name], attr.value->string.s);
break;
case nBool:
attrs.emplace(attr.name, Explicit<bool> { attr.value->boolean });
attrs.emplace(state.symbols[attr.name], Explicit<bool> { attr.value->boolean });
break;
case nInt:
attrs.emplace(attr.name, (long unsigned int)attr.value->integer);
attrs.emplace(state.symbols[attr.name], (long unsigned int)attr.value->integer);
break;
default:
throw TypeError("flake input attribute '%s' is %s while a string, Boolean, or integer is expected",
attr.name, showType(*attr.value));
state.symbols[attr.name], showType(*attr.value));
}
}
} catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("in flake attribute '%s'", attr.name));
e.addTrace(
state.positions[attr.pos],
hintfmt("in flake attribute '%s'", state.symbols[attr.name]));
throw;
}
}
@ -150,13 +152,13 @@ static FlakeInput parseFlakeInput(EvalState & state,
try {
input.ref = FlakeRef::fromAttrs(attrs);
} catch (Error & e) {
e.addTrace(pos, hintfmt("in flake input"));
e.addTrace(state.positions[pos], hintfmt("in flake input"));
throw;
}
else {
attrs.erase("url");
if (!attrs.empty())
throw Error("unexpected flake input attribute '%s', at %s", attrs.begin()->first, pos);
throw Error("unexpected flake input attribute '%s', at %s", attrs.begin()->first, state.positions[pos]);
if (url)
input.ref = parseFlakeRef(*url, baseDir, true, input.isFlake);
}
@ -168,7 +170,7 @@ static FlakeInput parseFlakeInput(EvalState & state,
}
static std::map<FlakeId, FlakeInput> parseFlakeInputs(
EvalState & state, Value * value, const Pos & pos,
EvalState & state, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath)
{
std::map<FlakeId, FlakeInput> inputs;
@ -176,11 +178,11 @@ static std::map<FlakeId, FlakeInput> parseFlakeInputs(
expectType(state, nAttrs, *value, pos);
for (nix::Attr & inputAttr : *(*value).attrs) {
inputs.emplace(inputAttr.name,
inputs.emplace(state.symbols[inputAttr.name],
parseFlakeInput(state,
inputAttr.name,
state.symbols[inputAttr.name],
inputAttr.value,
*inputAttr.pos,
inputAttr.pos,
baseDir,
lockRootPath));
}
@ -218,28 +220,28 @@ static Flake getFlake(
Value vInfo;
state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
expectType(state, nAttrs, vInfo, Pos(foFile, state.symbols.create(flakeFile), 0, 0));
expectType(state, nAttrs, vInfo, state.positions.add({flakeFile, foFile}, 0, 0));
if (auto description = vInfo.attrs->get(state.sDescription)) {
expectType(state, nString, *description->value, *description->pos);
expectType(state, nString, *description->value, description->pos);
flake.description = description->value->string.s;
}
auto sInputs = state.symbols.create("inputs");
if (auto inputs = vInfo.attrs->get(sInputs))
flake.inputs = parseFlakeInputs(state, inputs->value, *inputs->pos, flakeDir, lockRootPath);
flake.inputs = parseFlakeInputs(state, inputs->value, inputs->pos, flakeDir, lockRootPath);
auto sOutputs = state.symbols.create("outputs");
if (auto outputs = vInfo.attrs->get(sOutputs)) {
expectType(state, nFunction, *outputs->value, *outputs->pos);
expectType(state, nFunction, *outputs->value, outputs->pos);
if (outputs->value->isLambda() && outputs->value->lambda.fun->hasFormals()) {
for (auto & formal : outputs->value->lambda.fun->formals->formals) {
if (formal.name != state.sSelf)
flake.inputs.emplace(formal.name, FlakeInput {
.ref = parseFlakeRef(formal.name)
flake.inputs.emplace(state.symbols[formal.name], FlakeInput {
.ref = parseFlakeRef(state.symbols[formal.name])
});
}
}
@ -250,35 +252,41 @@ static Flake getFlake(
auto sNixConfig = state.symbols.create("nixConfig");
if (auto nixConfig = vInfo.attrs->get(sNixConfig)) {
expectType(state, nAttrs, *nixConfig->value, *nixConfig->pos);
expectType(state, nAttrs, *nixConfig->value, nixConfig->pos);
for (auto & setting : *nixConfig->value->attrs) {
forceTrivialValue(state, *setting.value, *setting.pos);
forceTrivialValue(state, *setting.value, setting.pos);
if (setting.value->type() == nString)
flake.config.settings.insert({setting.name, std::string(state.forceStringNoCtx(*setting.value, *setting.pos))});
flake.config.settings.emplace(
state.symbols[setting.name],
std::string(state.forceStringNoCtx(*setting.value, setting.pos)));
else if (setting.value->type() == nPath) {
PathSet emptyContext = {};
flake.config.settings.emplace(
setting.name,
state.coerceToString(*setting.pos, *setting.value, emptyContext, false, true, true) .toOwned());
state.symbols[setting.name],
state.coerceToString(setting.pos, *setting.value, emptyContext, false, true, true) .toOwned());
}
else if (setting.value->type() == nInt)
flake.config.settings.insert({setting.name, state.forceInt(*setting.value, *setting.pos)});
flake.config.settings.emplace(
state.symbols[setting.name],
state.forceInt(*setting.value, setting.pos));
else if (setting.value->type() == nBool)
flake.config.settings.insert({setting.name, Explicit<bool> { state.forceBool(*setting.value, *setting.pos) }});
flake.config.settings.emplace(
state.symbols[setting.name],
Explicit<bool> { state.forceBool(*setting.value, setting.pos) });
else if (setting.value->type() == nList) {
std::vector<std::string> ss;
for (auto elem : setting.value->listItems()) {
if (elem->type() != nString)
throw TypeError("list element in flake configuration setting '%s' is %s while a string is expected",
setting.name, showType(*setting.value));
ss.emplace_back(state.forceStringNoCtx(*elem, *setting.pos));
state.symbols[setting.name], showType(*setting.value));
ss.emplace_back(state.forceStringNoCtx(*elem, setting.pos));
}
flake.config.settings.insert({setting.name, ss});
flake.config.settings.emplace(state.symbols[setting.name], ss);
}
else
throw TypeError("flake configuration setting '%s' is %s",
setting.name, showType(*setting.value));
state.symbols[setting.name], showType(*setting.value));
}
}
@ -288,7 +296,7 @@ static Flake getFlake(
attr.name != sOutputs &&
attr.name != sNixConfig)
throw Error("flake '%s' has an unsupported attribute '%s', at %s",
lockedRef, attr.name, *attr.pos);
lockedRef, state.symbols[attr.name], state.positions[attr.pos]);
}
return flake;
@ -704,12 +712,12 @@ void callFlake(EvalState & state,
state.callFunction(*vTmp2, *vRootSubdir, vRes, noPos);
}
static void prim_getFlake(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_getFlake(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
std::string flakeRefS(state.forceStringNoCtx(*args[0], pos));
auto flakeRef = parseFlakeRef(flakeRefS, {}, true);
if (evalSettings.pureEval && !flakeRef.input.isLocked())
throw Error("cannot call 'getFlake' on unlocked flake reference '%s', at %s (use --impure to override)", flakeRefS, pos);
throw Error("cannot call 'getFlake' on unlocked flake reference '%s', at %s (use --impure to override)", flakeRefS, state.positions[pos]);
callFlake(state,
lockFlake(state, flakeRef,

2
src/libexpr/function-trace.hh
View file

@ -8,7 +8,7 @@ namespace nix {
struct FunctionCallTrace
{
const Pos & pos;
const Pos pos;
FunctionCallTrace(const Pos & pos);
~FunctionCallTrace();
};

30
src/libexpr/get-drvs.cc
View file

@ -61,7 +61,7 @@ std::string DrvInfo::querySystem() const
{
if (system == "" && attrs) {
auto i = attrs->find(state->sSystem);
system = i == attrs->end() ? "unknown" : state->forceStringNoCtx(*i->value, *i->pos);
system = i == attrs->end() ? "unknown" : state->forceStringNoCtx(*i->value, i->pos);
}
return system;
}
@ -75,7 +75,7 @@ std::optional<StorePath> DrvInfo::queryDrvPath() const
if (i == attrs->end())
drvPath = {std::nullopt};
else
drvPath = {state->coerceToStorePath(*i->pos, *i->value, context)};
drvPath = {state->coerceToStorePath(i->pos, *i->value, context)};
}
return drvPath.value_or(std::nullopt);
}
@ -95,7 +95,7 @@ StorePath DrvInfo::queryOutPath() const
Bindings::iterator i = attrs->find(state->sOutPath);
PathSet context;
if (i != attrs->end())
outPath = state->coerceToStorePath(*i->pos, *i->value, context);
outPath = state->coerceToStorePath(i->pos, *i->value, context);
}
if (!outPath)
throw UnimplementedError("CA derivations are not yet supported");
@ -109,23 +109,23 @@ DrvInfo::Outputs DrvInfo::queryOutputs(bool withPaths, bool onlyOutputsToInstall
/* Get the ‘outputs’ list. */
Bindings::iterator i;
if (attrs && (i = attrs->find(state->sOutputs)) != attrs->end()) {
state->forceList(*i->value, *i->pos);
state->forceList(*i->value, i->pos);
/* For each output... */
for (auto elem : i->value->listItems()) {
std::string output(state->forceStringNoCtx(*elem, *i->pos));
std::string output(state->forceStringNoCtx(*elem, i->pos));
if (withPaths) {
/* Evaluate the corresponding set. */
Bindings::iterator out = attrs->find(state->symbols.create(output));
if (out == attrs->end()) continue; // FIXME: throw error?
state->forceAttrs(*out->value, *i->pos);
state->forceAttrs(*out->value, i->pos);
/* And evaluate its ‘outPath’ attribute. */
Bindings::iterator outPath = out->value->attrs->find(state->sOutPath);
if (outPath == out->value->attrs->end()) continue; // FIXME: throw error?
PathSet context;
outputs.emplace(output, state->coerceToStorePath(*outPath->pos, *outPath->value, context));
outputs.emplace(output, state->coerceToStorePath(outPath->pos, *outPath->value, context));
} else
outputs.emplace(output, std::nullopt);
}
@ -168,7 +168,7 @@ Bindings * DrvInfo::getMeta()
if (!attrs) return 0;
Bindings::iterator a = attrs->find(state->sMeta);
if (a == attrs->end()) return 0;
state->forceAttrs(*a->value, *a->pos);
state->forceAttrs(*a->value, a->pos);
meta = a->value->attrs;
return meta;
}
@ -179,7 +179,7 @@ StringSet DrvInfo::queryMetaNames()
StringSet res;
if (!getMeta()) return res;
for (auto & i : *meta)
res.insert(i.name);
res.emplace(state->symbols[i.name]);
return res;
}
@ -269,7 +269,7 @@ void DrvInfo::setMeta(const std::string & name, Value * v)
{
getMeta();
auto attrs = state->buildBindings(1 + (meta ? meta->size() : 0));
Symbol sym = state->symbols.create(name);
auto sym = state->symbols.create(name);
if (meta)
for (auto i : *meta)
if (i.name != sym)
@ -356,11 +356,11 @@ static void getDerivations(EvalState & state, Value & vIn,
there are names clashes between derivations, the derivation
bound to the attribute with the "lower" name should take
precedence). */
for (auto & i : v.attrs->lexicographicOrder()) {
debug("evaluating attribute '%1%'", i->name);
if (!std::regex_match(std::string(i->name), attrRegex))
for (auto & i : v.attrs->lexicographicOrder(state.symbols)) {
debug("evaluating attribute '%1%'", state.symbols[i->name]);
if (!std::regex_match(std::string(state.symbols[i->name]), attrRegex))
continue;
std::string pathPrefix2 = addToPath(pathPrefix, i->name);
std::string pathPrefix2 = addToPath(pathPrefix, state.symbols[i->name]);
if (combineChannels)
getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures);
else if (getDerivation(state, *i->value, pathPrefix2, drvs, done, ignoreAssertionFailures)) {
@ -369,7 +369,7 @@ static void getDerivations(EvalState & state, Value & vIn,
`recurseForDerivations = true' attribute. */
if (i->value->type() == nAttrs) {
Bindings::iterator j = i->value->attrs->find(state.sRecurseForDerivations);
if (j != i->value->attrs->end() && state.forceBool(*j->value, *j->pos))
if (j != i->value->attrs->end() && state.forceBool(*j->value, j->pos))
getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures);
}
}

10
src/libexpr/lexer.l
View file

@ -28,9 +28,9 @@ using namespace nix;
namespace nix {
static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data)
static inline PosIdx makeCurPos(const YYLTYPE & loc, ParseData * data)
{
return Pos(data->origin, data->file, loc.first_line, loc.first_column);
return data->state.positions.add(data->origin, loc.first_line, loc.first_column);
}
#define CUR_POS makeCurPos(*yylloc, data)
@ -155,7 +155,7 @@ or { return OR_KW; }
} catch (const boost::bad_lexical_cast &) {
throw ParseError({
.msg = hintfmt("invalid integer '%1%'", yytext),
.errPos = CUR_POS,
.errPos = data->state.positions[CUR_POS],
});
}
return INT;
@ -165,7 +165,7 @@ or { return OR_KW; }
if (errno != 0)
throw ParseError({
.msg = hintfmt("invalid float '%1%'", yytext),
.errPos = CUR_POS,
.errPos = data->state.positions[CUR_POS],
});
return FLOAT;
}
@ -294,7 +294,7 @@ or { return OR_KW; }
<INPATH_SLASH><<EOF>> {
throw ParseError({
.msg = hintfmt("path has a trailing slash"),
.errPos = CUR_POS,
.errPos = data->state.positions[CUR_POS],
});
}

305
src/libexpr/nixexpr.cc
View file

@ -1,5 +1,7 @@
#include "nixexpr.hh"
#include "derivations.hh"
#include "eval.hh"
#include "symbol-table.hh"
#include "util.hh"
#include <cstdlib>
@ -12,12 +14,6 @@ std::function<void(const Error * error, const Env & env, const Expr & expr)> deb
/* Displaying abstract syntax trees. */
std::ostream & operator << (std::ostream & str, const Expr & e)
{
e.show(str);
return str;
}
static void showString(std::ostream & str, std::string_view s)
{
str << '"';
@ -30,8 +26,10 @@ static void showString(std::ostream & str, std::string_view s)
str << '"';
}
static void showId(std::ostream & str, std::string_view s)
std::ostream & operator <<(std::ostream & str, const SymbolStr & symbol)
{
std::string_view s = symbol;
if (s.empty())
str << "\"\"";
else if (s == "if") // FIXME: handle other keywords
@ -40,7 +38,7 @@ static void showId(std::ostream & str, std::string_view s)
char c = s[0];
if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_')) {
showString(str, s);
return;
return str;
}
for (auto c : s)
if (!((c >= 'a' && c <= 'z') ||
@ -48,89 +46,104 @@ static void showId(std::ostream & str, std::string_view s)
(c >= '0' && c <= '9') ||
c == '_' || c == '\'' || c == '-')) {
showString(str, s);
return;
return str;
}
str << s;
}
}
std::ostream & operator << (std::ostream & str, const Symbol & sym)
{
showId(str, *sym.s);
return str;
}
void Expr::show(std::ostream & str) const
void Expr::show(const SymbolTable & symbols, std::ostream & str) const
{
abort();
}
void ExprInt::show(std::ostream & str) const
void ExprInt::show(const SymbolTable & symbols, std::ostream & str) const
{
str << n;
}
void ExprFloat::show(std::ostream & str) const
void ExprFloat::show(const SymbolTable & symbols, std::ostream & str) const
{
str << nf;
}
void ExprString::show(std::ostream & str) const
void ExprString::show(const SymbolTable & symbols, std::ostream & str) const
{
showString(str, s);
}
void ExprPath::show(std::ostream & str) const
void ExprPath::show(const SymbolTable & symbols, std::ostream & str) const
{
str << s;
}
void ExprVar::show(std::ostream & str) const
void ExprVar::show(const SymbolTable & symbols, std::ostream & str) const
{
str << name;
str << symbols[name];
}
void ExprSelect::show(std::ostream & str) const
void ExprSelect::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(" << *e << ")." << showAttrPath(attrPath);
if (def) str << " or (" << *def << ")";
str << "(";
e->show(symbols, str);
str << ")." << showAttrPath(symbols, attrPath);
if (def) {
str << " or (";
def->show(symbols, str);
str << ")";
}
}
void ExprOpHasAttr::show(std::ostream & str) const
void ExprOpHasAttr::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "((" << *e << ") ? " << showAttrPath(attrPath) << ")";
str << "((";
e->show(symbols, str);
str << ") ? " << showAttrPath(symbols, attrPath) << ")";
}
void ExprAttrs::show(std::ostream & str) const
void ExprAttrs::show(const SymbolTable & symbols, std::ostream & str) const
{
if (recursive) str << "rec ";
str << "{ ";
typedef const decltype(attrs)::value_type * Attr;
std::vector<Attr> sorted;
for (auto & i : attrs) sorted.push_back(&i);
std::sort(sorted.begin(), sorted.end(), [](Attr a, Attr b) {
return (const std::string &) a->first < (const std::string &) b->first;
});
std::sort(sorted.begin(), sorted.end(), [&](Attr a, Attr b) {
std::string_view sa = symbols[a->first], sb = symbols[b->first];
return sa < sb;
});
for (auto & i : sorted) {
if (i->second.inherited)
str << "inherit " << i->first << " " << "; ";
else
str << i->first << " = " << *i->second.e << "; ";
str << "inherit " << symbols[i->first] << " " << "; ";
else {
str << symbols[i->first] << " = ";
i->second.e->show(symbols, str);
str << "; ";
}
}
for (auto & i : dynamicAttrs) {
str << "\"${";
i.nameExpr->show(symbols, str);
str << "}\" = ";
i.valueExpr->show(symbols, str);
str << "; ";
}
for (auto & i : dynamicAttrs)
str << "\"${" << *i.nameExpr << "}\" = " << *i.valueExpr << "; ";
str << "}";
}
void ExprList::show(std::ostream & str) const
void ExprList::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "[ ";
for (auto & i : elems)
str << "(" << *i << ") ";
for (auto & i : elems) {
str << "(";
i->show(symbols, str);
str << ") ";
}
str << "]";
}
void ExprLambda::show(std::ostream & str) const
void ExprLambda::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(";
if (hasFormals()) {
@ -138,74 +151,100 @@ void ExprLambda::show(std::ostream & str) const
bool first = true;
for (auto & i : formals->formals) {
if (first) first = false; else str << ", ";
str << i.name;
if (i.def) str << " ? " << *i.def;
str << symbols[i.name];
if (i.def) {
str << " ? ";
i.def->show(symbols, str);
}
}
if (formals->ellipsis) {
if (!first) str << ", ";
str << "...";
}
str << " }";
if (!arg.empty()) str << " @ ";
if (arg) str << " @ ";
}
if (!arg.empty()) str << arg;
str << ": " << *body << ")";
if (arg) str << symbols[arg];
str << ": ";
body->show(symbols, str);
str << ")";
}
void ExprCall::show(std::ostream & str) const
void ExprCall::show(const SymbolTable & symbols, std::ostream & str) const
{
str << '(' << *fun;
str << '(';
fun->show(symbols, str);
for (auto e : args) {
str << ' ';
str << *e;
e->show(symbols, str);
}
str << ')';
}
void ExprLet::show(std::ostream & str) const
void ExprLet::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(let ";
for (auto & i : attrs->attrs)
if (i.second.inherited) {
str << "inherit " << i.first << "; ";
str << "inherit " << symbols[i.first] << "; ";
}
else
str << i.first << " = " << *i.second.e << "; ";
str << "in " << *body << ")";
else {
str << symbols[i.first] << " = ";
i.second.e->show(symbols, str);
str << "; ";
}
str << "in ";
body->show(symbols, str);
str << ")";
}
void ExprWith::show(std::ostream & str) const
void ExprWith::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(with " << *attrs << "; " << *body << ")";
str << "(with ";
attrs->show(symbols, str);
str << "; ";
body->show(symbols, str);
str << ")";
}
void ExprIf::show(std::ostream & str) const
void ExprIf::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(if " << *cond << " then " << *then << " else " << *else_ << ")";
str << "(if ";
cond->show(symbols, str);
str << " then ";
then->show(symbols, str);
str << " else ";
else_->show(symbols, str);
str << ")";
}
void ExprAssert::show(std::ostream & str) const
void ExprAssert::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "assert " << *cond << "; " << *body;
str << "assert ";
cond->show(symbols, str);
str << "; ";
body->show(symbols, str);
}
void ExprOpNot::show(std::ostream & str) const
void ExprOpNot::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "(! " << *e << ")";
str << "(! ";
e->show(symbols, str);
str << ")";
}
void ExprConcatStrings::show(std::ostream & str) const
void ExprConcatStrings::show(const SymbolTable & symbols, std::ostream & str) const
{
bool first = true;
str << "(";
for (auto & i : *es) {
if (first) first = false; else str << " + ";
str << *i.second;
i.second->show(symbols, str);
}
str << ")";
}
void ExprPos::show(std::ostream & str) const
void ExprPos::show(const SymbolTable & symbols, std::ostream & str) const
{
str << "__curPos";
}
@ -236,56 +275,57 @@ std::ostream & operator << (std::ostream & str, const Pos & pos)
}
std::string showAttrPath(const AttrPath & attrPath)
std::string showAttrPath(const SymbolTable & symbols, const AttrPath & attrPath)
{
std::ostringstream out;
bool first = true;
for (auto & i : attrPath) {
if (!first) out << '.'; else first = false;
if (i.symbol.set())
out << i.symbol;
else
out << "\"${" << *i.expr << "}\"";
if (i.symbol)
out << symbols[i.symbol];
else {
out << "\"${";
i.expr->show(symbols, out);
out << "}\"";
}
}
return out.str();
}
Pos noPos;
/* Computing levels/displacements for variables. */
void Expr::bindVars(const std::shared_ptr<const StaticEnv> &env)
void Expr::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
abort();
}
void ExprInt::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprInt::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
}
void ExprFloat::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprFloat::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
}
void ExprString::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprString::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
}
void ExprPath::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprPath::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
}
void ExprVar::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprVar::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -315,38 +355,38 @@ void ExprVar::bindVars(const std::shared_ptr<const StaticEnv> &env)
if (withLevel == -1)
{
throw UndefinedVarError({
.msg = hintfmt("undefined variable '%1%'", name),
.errPos = pos
.msg = hintfmt("undefined variable '%1%'", es.symbols[name]),
.errPos = es.positions[pos]
});
}
fromWith = true;
this->level = withLevel;
}
void ExprSelect::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprSelect::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
e->bindVars(env);
if (def) def->bindVars(env);
e->bindVars(es, env);
if (def) def->bindVars(es, env);
for (auto & i : attrPath)
if (!i.symbol.set())
i.expr->bindVars(env);
if (!i.symbol)
i.expr->bindVars(es, env);
}
void ExprOpHasAttr::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprOpHasAttr::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
e->bindVars(env);
e->bindVars(es, env);
for (auto & i : attrPath)
if (!i.symbol.set())
i.expr->bindVars(env);
if (!i.symbol)
i.expr->bindVars(es, env);
}
void ExprAttrs::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprAttrs::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -361,34 +401,34 @@ void ExprAttrs::bindVars(const std::shared_ptr<const StaticEnv> &env)
// No need to sort newEnv since attrs is in sorted order.
for (auto & i : attrs)
i.second.e->bindVars(i.second.inherited ? env : newEnv);
i.second.e->bindVars(es, i.second.inherited ? env : newEnv);
for (auto & i : dynamicAttrs) {
i.nameExpr->bindVars(newEnv);
i.valueExpr->bindVars(newEnv);
i.nameExpr->bindVars(es, newEnv);
i.valueExpr->bindVars(es, newEnv);
}
}
else {
for (auto & i : attrs)
i.second.e->bindVars(env);
i.second.e->bindVars(es, env);
for (auto & i : dynamicAttrs) {
i.nameExpr->bindVars(env);
i.valueExpr->bindVars(env);
i.nameExpr->bindVars(es, env);
i.valueExpr->bindVars(es, env);
}
}
}
void ExprList::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprList::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
for (auto & i : elems)
i->bindVars(env);
i->bindVars(es, env);
}
void ExprLambda::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprLambda::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -397,11 +437,11 @@ void ExprLambda::bindVars(const std::shared_ptr<const StaticEnv> &env)
new StaticEnv(
false, env.get(),
(hasFormals() ? formals->formals.size() : 0) +
(arg.empty() ? 0 : 1)));
(!arg ? 0 : 1));
Displacement displ = 0;
if (!arg.empty()) newEnv->vars.emplace_back(arg, displ++);
if (arg) newEnv.vars.emplace_back(arg, displ++);
if (hasFormals()) {
for (auto & i : formals->formals)
@ -410,23 +450,23 @@ void ExprLambda::bindVars(const std::shared_ptr<const StaticEnv> &env)
newEnv->sort();
for (auto & i : formals->formals)
if (i.def) i.def->bindVars(newEnv);
if (i.def) i.def->bindVars(es, newEnv);
}
body->bindVars(newEnv);
body->bindVars(es, newEnv);
}
void ExprCall::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprCall::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
fun->bindVars(env);
fun->bindVars(es, env);
for (auto e : args)
e->bindVars(env);
e->bindVars(es, env);
}
void ExprLet::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprLet::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -440,12 +480,12 @@ void ExprLet::bindVars(const std::shared_ptr<const StaticEnv> &env)
// No need to sort newEnv since attrs->attrs is in sorted order.
for (auto & i : attrs->attrs)
i.second.e->bindVars(i.second.inherited ? env : newEnv);
i.second.e->bindVars(es, i.second.inherited ? env : newEnv);
body->bindVars(newEnv);
body->bindVars(es, newEnv);
}
void ExprWith::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprWith::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -462,48 +502,51 @@ void ExprWith::bindVars(const std::shared_ptr<const StaticEnv> &env)
break;
}
attrs->bindVars(env);
auto newEnv = std::shared_ptr<StaticEnv>(new StaticEnv(true, env.get()));
body->bindVars(newEnv);
if (debuggerHook)
staticenv = env;
attrs->bindVars(es, env);
StaticEnv newEnv(true, &env);
body->bindVars(es, newEnv);
}
void ExprIf::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprIf::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
cond->bindVars(env);
then->bindVars(env);
else_->bindVars(env);
cond->bindVars(es, env);
then->bindVars(es, env);
else_->bindVars(es, env);
}
void ExprAssert::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprAssert::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
cond->bindVars(env);
body->bindVars(env);
cond->bindVars(es, env);
body->bindVars(es, env);
}
void ExprOpNot::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprOpNot::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
e->bindVars(env);
e->bindVars(es, env);
}
void ExprConcatStrings::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprConcatStrings::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
for (auto & i : *es)
i.second->bindVars(env);
for (auto & i : *this->es)
i.second->bindVars(es, env);
}
void ExprPos::bindVars(const std::shared_ptr<const StaticEnv> &env)
void ExprPos::bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> &env)
{
if (debuggerHook)
staticenv = env;
@ -513,21 +556,24 @@ void ExprPos::bindVars(const std::shared_ptr<const StaticEnv> &env)
/* Storing function names. */
void Expr::setName(Symbol & name)
void Expr::setName(Symbol name)
{
}
void ExprLambda::setName(Symbol & name)
void ExprLambda::setName(Symbol name)
{
this->name = name;
body->setName(name);
}
std::string ExprLambda::showNamePos() const
std::string ExprLambda::showNamePos(const EvalState & state) const
{
return fmt("%1% at %2%", name.set() ? "'" + (std::string) name + "'" : "anonymous function", pos);
std::string id(name
? concatStrings("'", state.symbols[name], "'")
: "anonymous function");
return fmt("%1% at %2%", id, state.positions[pos]);
}
@ -537,8 +583,7 @@ std::string ExprLambda::showNamePos() const
size_t SymbolTable::totalSize() const
{
size_t n = 0;
for (auto & i : store)
n += i.size();
dump([&] (const std::string & s) { n += s.size(); });
return n;
}

246
src/libexpr/nixexpr.hh
View file

@ -1,8 +1,12 @@
#pragma once
#include <map>
#include <vector>
#include "value.hh"
#include "symbol-table.hh"
#include "error.hh"
#include "chunked-vector.hh"
namespace nix {
@ -24,32 +28,92 @@ extern std::function<void(const Error * error, const Env & env, const Expr & exp
struct Pos
{
Symbol file;
std::string file;
FileOrigin origin;
uint32_t line;
FileOrigin origin:2;
uint32_t column:30;
Pos() : line(0), origin(foString), column(0) { };
Pos(FileOrigin origin, const Symbol & file, uint32_t line, uint32_t column)
: file(file), line(line), origin(origin), column(column) { };
operator bool() const
uint32_t column;
explicit operator bool() const { return line > 0; }
};
class PosIdx {
friend class PosTable;
private:
uint32_t id;
explicit PosIdx(uint32_t id): id(id) {}
public:
PosIdx() : id(0) {}
explicit operator bool() const { return id > 0; }
bool operator<(const PosIdx other) const { return id < other.id; }
};
class PosTable
{
public:
class Origin {
friend PosTable;
private:
// must always be invalid by default, add() replaces this with the actual value.
// subsequent add() calls use this index as a token to quickly check whether the
// current origins.back() can be reused or not.
mutable uint32_t idx = std::numeric_limits<uint32_t>::max();
explicit Origin(uint32_t idx): idx(idx), file{}, origin{} {}
public:
const std::string file;
const FileOrigin origin;
Origin(std::string file, FileOrigin origin): file(std::move(file)), origin(origin) {}
};
struct Offset {
uint32_t line, column;
};
private:
std::vector<Origin> origins;
ChunkedVector<Offset, 8192> offsets;
public:
PosTable(): offsets(1024)
{
return line != 0;
origins.reserve(1024);
}
bool operator < (const Pos & p2) const
PosIdx add(const Origin & origin, uint32_t line, uint32_t column)
{
if (!line) return p2.line;
if (!p2.line) return false;
int d = ((const std::string &) file).compare((const std::string &) p2.file);
if (d < 0) return true;
if (d > 0) return false;
if (line < p2.line) return true;
if (line > p2.line) return false;
return column < p2.column;
const auto idx = offsets.add({line, column}).second;
if (origins.empty() || origins.back().idx != origin.idx) {
origin.idx = idx;
origins.push_back(origin);
}
return PosIdx(idx + 1);
}
Pos operator[](PosIdx p) const
{
if (p.id == 0 || p.id > offsets.size())
return {};
const auto idx = p.id - 1;
/* we want the last key <= idx, so we'll take prev(first key > idx).
this is guaranteed to never rewind origin.begin because the first
key is always 0. */
const auto pastOrigin = std::upper_bound(
origins.begin(), origins.end(), Origin(idx),
[] (const auto & a, const auto & b) { return a.idx < b.idx; });
const auto origin = *std::prev(pastOrigin);
const auto offset = offsets[idx];
return {origin.file, origin.origin, offset.line, offset.column};
}
};
extern Pos noPos;
inline PosIdx noPos = {};
std::ostream & operator << (std::ostream & str, const Pos & pos);
@ -65,13 +129,13 @@ struct AttrName
{
Symbol symbol;
Expr * expr;
AttrName(const Symbol & s) : symbol(s) {};
AttrName(Symbol s) : symbol(s) {};
AttrName(Expr * e) : expr(e) {};
};
typedef std::vector<AttrName> AttrPath;
std::string showAttrPath(const AttrPath & attrPath);
std::string showAttrPath(const SymbolTable & symbols, const AttrPath & attrPath);
/* Abstract syntax of Nix expressions. */
@ -79,22 +143,19 @@ std::string showAttrPath(const AttrPath & attrPath);
struct Expr
{
virtual ~Expr() { };
virtual void show(std::ostream & str) const;
virtual void bindVars(const std::shared_ptr<const StaticEnv> & env);
virtual void show(const SymbolTable & symbols, std::ostream & str) const;
virtual void bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> & env);
virtual void eval(EvalState & state, Env & env, Value & v);
virtual Value * maybeThunk(EvalState & state, Env & env);
virtual void setName(Symbol & name);
virtual void setName(Symbol name);
std::shared_ptr<const StaticEnv> staticenv;
virtual const Pos* getPos() const = 0;
virtual const PosIdx getPos() const = 0;
};
std::ostream & operator << (std::ostream & str, const Expr & e);
#define COMMON_METHODS \
void show(std::ostream & str) const; \
void show(const SymbolTable & symbols, std::ostream & str) const; \
void eval(EvalState & state, Env & env, Value & v); \
void bindVars(const std::shared_ptr<const StaticEnv> & env);
void bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> & env);
struct ExprInt : Expr
{
@ -102,7 +163,7 @@ struct ExprInt : Expr
Value v;
ExprInt(NixInt n) : n(n) { v.mkInt(n); };
Value * maybeThunk(EvalState & state, Env & env);
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return noPos; }
COMMON_METHODS
};
@ -112,7 +173,7 @@ struct ExprFloat : Expr
Value v;
ExprFloat(NixFloat nf) : nf(nf) { v.mkFloat(nf); };
Value * maybeThunk(EvalState & state, Env & env);
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return noPos; }
COMMON_METHODS
};
@ -122,7 +183,7 @@ struct ExprString : Expr
Value v;
ExprString(std::string s) : s(std::move(s)) { v.mkString(this->s.data()); };
Value * maybeThunk(EvalState & state, Env & env);
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return noPos; }
COMMON_METHODS
};
@ -132,7 +193,7 @@ struct ExprPath : Expr
Value v;
ExprPath(std::string s) : s(std::move(s)) { v.mkPath(this->s.c_str()); };
Value * maybeThunk(EvalState & state, Env & env);
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return noPos; }
COMMON_METHODS
};
@ -141,7 +202,7 @@ typedef uint32_t Displacement;
struct ExprVar : Expr
{
Pos pos;
PosIdx pos;
Symbol name;
/* Whether the variable comes from an environment (e.g. a rec, let
@ -157,21 +218,21 @@ struct ExprVar : Expr
Level level;
Displacement displ;
ExprVar(const Symbol & name) : name(name) { };
ExprVar(const Pos & pos, const Symbol & name) : pos(pos), name(name) { };
ExprVar(Symbol name) : name(name) { };
ExprVar(const PosIdx & pos, Symbol name) : pos(pos), name(name) { };
Value * maybeThunk(EvalState & state, Env & env);
const Pos* getPos() const { return &pos; }
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
struct ExprSelect : Expr
{
Pos pos;
PosIdx pos;
Expr * e, * def;
AttrPath attrPath;
ExprSelect(const Pos & pos, Expr * e, const AttrPath & attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(attrPath) { };
ExprSelect(const Pos & pos, Expr * e, const Symbol & name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); };
const Pos* getPos() const { return &pos; }
ExprSelect(const PosIdx & pos, Expr * e, const AttrPath & attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(attrPath) { };
ExprSelect(const PosIdx & pos, Expr * e, Symbol name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -180,20 +241,20 @@ struct ExprOpHasAttr : Expr
Expr * e;
AttrPath attrPath;
ExprOpHasAttr(Expr * e, const AttrPath & attrPath) : e(e), attrPath(attrPath) { };
const Pos* getPos() const { return e->getPos(); }
const PosIdx getPos() const { return e->getPos(); }
COMMON_METHODS
};
struct ExprAttrs : Expr
{
bool recursive;
Pos pos;
PosIdx pos;
struct AttrDef {
bool inherited;
Expr * e;
Pos pos;
PosIdx pos;
Displacement displ; // displacement
AttrDef(Expr * e, const Pos & pos, bool inherited=false)
AttrDef(Expr * e, const PosIdx & pos, bool inherited=false)
: inherited(inherited), e(e), pos(pos) { };
AttrDef() { };
};
@ -201,15 +262,15 @@ struct ExprAttrs : Expr
AttrDefs attrs;
struct DynamicAttrDef {
Expr * nameExpr, * valueExpr;
Pos pos;
DynamicAttrDef(Expr * nameExpr, Expr * valueExpr, const Pos & pos)
PosIdx pos;
DynamicAttrDef(Expr * nameExpr, Expr * valueExpr, const PosIdx & pos)
: nameExpr(nameExpr), valueExpr(valueExpr), pos(pos) { };
};
typedef std::vector<DynamicAttrDef> DynamicAttrDefs;
DynamicAttrDefs dynamicAttrs;
ExprAttrs(const Pos &pos) : recursive(false), pos(pos) { };
ExprAttrs() : recursive(false), pos(noPos) { };
const Pos* getPos() const { return &pos; }
ExprAttrs(const PosIdx &pos) : recursive(false), pos(pos) { };
ExprAttrs() : recursive(false) { };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -217,16 +278,15 @@ struct ExprList : Expr
{
std::vector<Expr *> elems;
ExprList() { };
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
struct Formal
{
Pos pos;
PosIdx pos;
Symbol name;
Expr * def;
Formal(const Pos & pos, const Symbol & name, Expr * def) : pos(pos), name(name), def(def) { };
};
struct Formals
@ -235,18 +295,20 @@ struct Formals
Formals_ formals;
bool ellipsis;
bool has(Symbol arg) const {
bool has(Symbol arg) const
{
auto it = std::lower_bound(formals.begin(), formals.end(), arg,
[] (const Formal & f, const Symbol & sym) { return f.name < sym; });
return it != formals.end() && it->name == arg;
}
std::vector<Formal> lexicographicOrder() const
std::vector<Formal> lexicographicOrder(const SymbolTable & symbols) const
{
std::vector<Formal> result(formals.begin(), formals.end());
std::sort(result.begin(), result.end(),
[] (const Formal & a, const Formal & b) {
return std::string_view(a.name) < std::string_view(b.name);
[&] (const Formal & a, const Formal & b) {
std::string_view sa = symbols[a.name], sb = symbols[b.name];
return sa < sb;
});
return result;
}
@ -254,19 +316,23 @@ struct Formals
struct ExprLambda : Expr
{
Pos pos;
PosIdx pos;
Symbol name;
Symbol arg;
Formals * formals;
Expr * body;
ExprLambda(const Pos & pos, const Symbol & arg, Formals * formals, Expr * body)
ExprLambda(PosIdx pos, Symbol arg, Formals * formals, Expr * body)
: pos(pos), arg(arg), formals(formals), body(body)
{
};
void setName(Symbol & name);
std::string showNamePos() const;
ExprLambda(PosIdx pos, Formals * formals, Expr * body)
: pos(pos), formals(formals), body(body)
{
}
void setName(Symbol name);
std::string showNamePos(const EvalState & state) const;
inline bool hasFormals() const { return formals != nullptr; }
const Pos* getPos() const { return &pos; }
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -274,11 +340,11 @@ struct ExprCall : Expr
{
Expr * fun;
std::vector<Expr *> args;
Pos pos;
ExprCall(const Pos & pos, Expr * fun, std::vector<Expr *> && args)
PosIdx pos;
ExprCall(const PosIdx & pos, Expr * fun, std::vector<Expr *> && args)
: fun(fun), args(args), pos(pos)
{ }
const Pos* getPos() const { return &pos; }
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -287,35 +353,35 @@ struct ExprLet : Expr
ExprAttrs * attrs;
Expr * body;
ExprLet(ExprAttrs * attrs, Expr * body) : attrs(attrs), body(body) { };
const Pos* getPos() const { return 0; }
const PosIdx getPos() const { return noPos; }
COMMON_METHODS
};
struct ExprWith : Expr
{
Pos pos;
PosIdx pos;
Expr * attrs, * body;
size_t prevWith;
ExprWith(const Pos & pos, Expr * attrs, Expr * body) : pos(pos), attrs(attrs), body(body) { };
const Pos* getPos() const { return &pos; }
ExprWith(const PosIdx & pos, Expr * attrs, Expr * body) : pos(pos), attrs(attrs), body(body) { };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
struct ExprIf : Expr
{
Pos pos;
PosIdx pos;
Expr * cond, * then, * else_;
ExprIf(const Pos & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { };
const Pos* getPos() const { return &pos; }
ExprIf(const PosIdx & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
struct ExprAssert : Expr
{
Pos pos;
PosIdx pos;
Expr * cond, * body;
ExprAssert(const Pos & pos, Expr * cond, Expr * body) : pos(pos), cond(cond), body(body) { };
const Pos* getPos() const { return &pos; }
ExprAssert(const PosIdx & pos, Expr * cond, Expr * body) : pos(pos), cond(cond), body(body) { };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -330,20 +396,20 @@ struct ExprOpNot : Expr
#define MakeBinOp(name, s) \
struct name : Expr \
{ \
Pos pos; \
PosIdx pos; \
Expr * e1, * e2; \
name(Expr * e1, Expr * e2) : e1(e1), e2(e2) { }; \
name(const Pos & pos, Expr * e1, Expr * e2) : pos(pos), e1(e1), e2(e2) { }; \
void show(std::ostream & str) const \
name(const PosIdx & pos, Expr * e1, Expr * e2) : pos(pos), e1(e1), e2(e2) { }; \
void show(const SymbolTable & symbols, std::ostream & str) const \
{ \
str << "(" << *e1 << " " s " " << *e2 << ")"; \
str << "("; e1->show(symbols, str); str << " " s " "; e2->show(symbols, str); str << ")"; \
} \
void bindVars(const std::shared_ptr<const StaticEnv> & env) \
void bindVars(const EvalState & es, const std::shared_ptr<const StaticEnv> & env) \
{ \
e1->bindVars(env); e2->bindVars(env); \
e1->bindVars(es, env); e2->bindVars(es, env); \
} \
void eval(EvalState & state, Env & env, Value & v); \
const Pos* getPos() const { return &pos; } \
const PosIdx getPos() const { return pos; } \
};
MakeBinOp(ExprOpEq, "==")
@ -356,20 +422,20 @@ MakeBinOp(ExprOpConcatLists, "++")
struct ExprConcatStrings : Expr
{
Pos pos;
PosIdx pos;
bool forceString;
std::vector<std::pair<Pos, Expr *> > * es;
ExprConcatStrings(const Pos & pos, bool forceString, std::vector<std::pair<Pos, Expr *> > * es)
std::vector<std::pair<PosIdx, Expr *> > * es;
ExprConcatStrings(const PosIdx & pos, bool forceString, std::vector<std::pair<PosIdx, Expr *> > * es)
: pos(pos), forceString(forceString), es(es) { };
const Pos* getPos() const { return &pos; }
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
struct ExprPos : Expr
{
Pos pos;
ExprPos(const Pos & pos) : pos(pos) { };
const Pos* getPos() const { return &pos; }
PosIdx pos;
ExprPos(const PosIdx & pos) : pos(pos) { };
const PosIdx getPos() const { return pos; }
COMMON_METHODS
};
@ -407,7 +473,7 @@ struct StaticEnv
vars.erase(it, end);
}
Vars::const_iterator find(const Symbol & name) const
Vars::const_iterator find(Symbol name) const
{
Vars::value_type key(name, 0);
auto i = std::lower_bound(vars.begin(), vars.end(), key);

108
src/libexpr/parser.y
View file

@ -32,12 +32,12 @@ namespace nix {
SymbolTable & symbols;
Expr * result;
Path basePath;
Symbol file;
FileOrigin origin;
PosTable::Origin origin;
std::optional<ErrorInfo> error;
ParseData(EvalState & state)
ParseData(EvalState & state, PosTable::Origin origin)
: state(state)
, symbols(state.symbols)
, origin(std::move(origin))
{ };
};
@ -77,26 +77,26 @@ using namespace nix;
namespace nix {
static void dupAttr(const AttrPath & attrPath, const Pos & pos, const Pos & prevPos)
static void dupAttr(const EvalState & state, const AttrPath & attrPath, const PosIdx pos, const PosIdx prevPos)
{
throw ParseError({
.msg = hintfmt("attribute '%1%' already defined at %2%",
showAttrPath(attrPath), prevPos),
.errPos = pos
showAttrPath(state.symbols, attrPath), state.positions[prevPos]),
.errPos = state.positions[pos]
});
}
static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos)
static void dupAttr(const EvalState & state, Symbol attr, const PosIdx pos, const PosIdx prevPos)
{
throw ParseError({
.msg = hintfmt("attribute '%1%' already defined at %2%", attr, prevPos),
.errPos = pos
.msg = hintfmt("attribute '%1%' already defined at %2%", state.symbols[attr], state.positions[prevPos]),
.errPos = state.positions[pos]
});
}
static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
Expr * e, const Pos & pos)
Expr * e, const PosIdx pos, const nix::EvalState & state)
{
AttrPath::iterator i;
// All attrpaths have at least one attr
@ -104,15 +104,15 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
// Checking attrPath validity.
// ===========================
for (i = attrPath.begin(); i + 1 < attrPath.end(); i++) {
if (i->symbol.set()) {
if (i->symbol) {
ExprAttrs::AttrDefs::iterator j = attrs->attrs.find(i->symbol);
if (j != attrs->attrs.end()) {
if (!j->second.inherited) {
ExprAttrs * attrs2 = dynamic_cast<ExprAttrs *>(j->second.e);
if (!attrs2) dupAttr(attrPath, pos, j->second.pos);
if (!attrs2) dupAttr(state, attrPath, pos, j->second.pos);
attrs = attrs2;
} else
dupAttr(attrPath, pos, j->second.pos);
dupAttr(state, attrPath, pos, j->second.pos);
} else {
ExprAttrs * nested = new ExprAttrs;
attrs->attrs[i->symbol] = ExprAttrs::AttrDef(nested, pos);
@ -126,7 +126,7 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
}
// Expr insertion.
// ==========================
if (i->symbol.set()) {
if (i->symbol) {
ExprAttrs::AttrDefs::iterator j = attrs->attrs.find(i->symbol);
if (j != attrs->attrs.end()) {
// This attr path is already defined. However, if both
@ -139,11 +139,11 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
for (auto & ad : ae->attrs) {
auto j2 = jAttrs->attrs.find(ad.first);
if (j2 != jAttrs->attrs.end()) // Attr already defined in iAttrs, error.
dupAttr(ad.first, j2->second.pos, ad.second.pos);
dupAttr(state, ad.first, j2->second.pos, ad.second.pos);
jAttrs->attrs.emplace(ad.first, ad.second);
}
} else {
dupAttr(attrPath, pos, j->second.pos);
dupAttr(state, attrPath, pos, j->second.pos);
}
} else {
// This attr path is not defined. Let's create it.
@ -157,14 +157,14 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
static Formals * toFormals(ParseData & data, ParserFormals * formals,
Pos pos = noPos, Symbol arg = {})
PosIdx pos = noPos, Symbol arg = {})
{
std::sort(formals->formals.begin(), formals->formals.end(),
[] (const auto & a, const auto & b) {
return std::tie(a.name, a.pos) < std::tie(b.name, b.pos);
});
std::optional<std::pair<Symbol, Pos>> duplicate;
std::optional<std::pair<Symbol, PosIdx>> duplicate;
for (size_t i = 0; i + 1 < formals->formals.size(); i++) {
if (formals->formals[i].name != formals->formals[i + 1].name)
continue;
@ -173,18 +173,18 @@ static Formals * toFormals(ParseData & data, ParserFormals * formals,
}
if (duplicate)
throw ParseError({
.msg = hintfmt("duplicate formal function argument '%1%'", duplicate->first),
.errPos = duplicate->second
.msg = hintfmt("duplicate formal function argument '%1%'", data.symbols[duplicate->first]),
.errPos = data.state.positions[duplicate->second]
});
Formals result;
result.ellipsis = formals->ellipsis;
result.formals = std::move(formals->formals);
if (arg.set() && result.has(arg))
if (arg && result.has(arg))
throw ParseError({
.msg = hintfmt("duplicate formal function argument '%1%'", arg),
.errPos = pos
.msg = hintfmt("duplicate formal function argument '%1%'", data.symbols[arg]),
.errPos = data.state.positions[pos]
});
delete formals;
@ -192,8 +192,8 @@ static Formals * toFormals(ParseData & data, ParserFormals * formals,
}
static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols,
std::vector<std::pair<Pos, std::variant<Expr *, StringToken> > > & es)
static Expr * stripIndentation(const PosIdx pos, SymbolTable & symbols,
std::vector<std::pair<PosIdx, std::variant<Expr *, StringToken> > > & es)
{
if (es.empty()) return new ExprString("");
@ -233,7 +233,7 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols,
}
/* Strip spaces from each line. */
std::vector<std::pair<Pos, Expr *> > * es2 = new std::vector<std::pair<Pos, Expr *> >;
auto * es2 = new std::vector<std::pair<PosIdx, Expr *> >;
atStartOfLine = true;
size_t curDropped = 0;
size_t n = es.size();
@ -284,9 +284,9 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols,
}
static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data)
static inline PosIdx makeCurPos(const YYLTYPE & loc, ParseData * data)
{
return Pos(data->origin, data->file, loc.first_line, loc.first_column);
return data->state.positions.add(data->origin, loc.first_line, loc.first_column);
}
#define CUR_POS makeCurPos(*yylocp, data)
@ -299,7 +299,7 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
{
data->error = {
.msg = hintfmt(error),
.errPos = makeCurPos(*loc, data)
.errPos = data->state.positions[makeCurPos(*loc, data)]
};
}
@ -320,8 +320,8 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
StringToken uri;
StringToken str;
std::vector<nix::AttrName> * attrNames;
std::vector<std::pair<nix::Pos, nix::Expr *> > * string_parts;
std::vector<std::pair<nix::Pos, std::variant<nix::Expr *, StringToken> > > * ind_string_parts;
std::vector<std::pair<nix::PosIdx, nix::Expr *> > * string_parts;
std::vector<std::pair<nix::PosIdx, std::variant<nix::Expr *, StringToken> > > * ind_string_parts;
}
%type <e> start expr expr_function expr_if expr_op
@ -369,15 +369,15 @@ expr_function
: ID ':' expr_function
{ $$ = new ExprLambda(CUR_POS, data->symbols.create($1), 0, $3); }
| '{' formals '}' ':' expr_function
{ $$ = new ExprLambda(CUR_POS, data->symbols.create(""), toFormals(*data, $2), $5); }
{ $$ = new ExprLambda(CUR_POS, toFormals(*data, $2), $5); }
| '{' formals '}' '@' ID ':' expr_function
{
Symbol arg = data->symbols.create($5);
auto arg = data->symbols.create($5);
$$ = new ExprLambda(CUR_POS, arg, toFormals(*data, $2, CUR_POS, arg), $7);
}
| ID '@' '{' formals '}' ':' expr_function
{
Symbol arg = data->symbols.create($1);
auto arg = data->symbols.create($1);
$$ = new ExprLambda(CUR_POS, arg, toFormals(*data, $4, CUR_POS, arg), $7);
}
| ASSERT expr ';' expr_function
@ -388,7 +388,7 @@ expr_function
{ if (!$2->dynamicAttrs.empty())
throw ParseError({
.msg = hintfmt("dynamic attributes not allowed in let"),
.errPos = CUR_POS
.errPos = data->state.positions[CUR_POS]
});
$$ = new ExprLet($2, $4);
}
@ -415,7 +415,7 @@ expr_op
| expr_op UPDATE expr_op { $$ = new ExprOpUpdate(CUR_POS, $1, $3); }
| expr_op '?' attrpath { $$ = new ExprOpHasAttr($1, *$3); }
| expr_op '+' expr_op
{ $$ = new ExprConcatStrings(CUR_POS, false, new std::vector<std::pair<Pos, Expr *> >({{makeCurPos(@1, data), $1}, {makeCurPos(@3, data), $3}})); }
{ $$ = new ExprConcatStrings(CUR_POS, false, new std::vector<std::pair<PosIdx, Expr *> >({{makeCurPos(@1, data), $1}, {makeCurPos(@3, data), $3}})); }
| expr_op '-' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__sub")), {$1, $3}); }
| expr_op '*' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__mul")), {$1, $3}); }
| expr_op '/' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__div")), {$1, $3}); }
@ -477,7 +477,7 @@ expr_simple
if (noURLLiterals)
throw ParseError({
.msg = hintfmt("URL literals are disabled"),
.errPos = CUR_POS
.errPos = data->state.positions[CUR_POS]
});
$$ = new ExprString(std::string($1));
}
@ -503,9 +503,9 @@ string_parts_interpolated
: string_parts_interpolated STR
{ $$ = $1; $1->emplace_back(makeCurPos(@2, data), new ExprString(std::string($2))); }
| string_parts_interpolated DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); }
| DOLLAR_CURLY expr '}' { $$ = new std::vector<std::pair<Pos, Expr *> >; $$->emplace_back(makeCurPos(@1, data), $2); }
| DOLLAR_CURLY expr '}' { $$ = new std::vector<std::pair<PosIdx, Expr *> >; $$->emplace_back(makeCurPos(@1, data), $2); }
| STR DOLLAR_CURLY expr '}' {
$$ = new std::vector<std::pair<Pos, Expr *> >;
$$ = new std::vector<std::pair<PosIdx, Expr *> >;
$$->emplace_back(makeCurPos(@1, data), new ExprString(std::string($1)));
$$->emplace_back(makeCurPos(@2, data), $3);
}
@ -528,17 +528,17 @@ path_start
ind_string_parts
: ind_string_parts IND_STR { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $2); }
| ind_string_parts DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); }
| { $$ = new std::vector<std::pair<Pos, std::variant<Expr *, StringToken> > >; }
| { $$ = new std::vector<std::pair<PosIdx, std::variant<Expr *, StringToken> > >; }
;
binds
: binds attrpath '=' expr ';' { $$ = $1; addAttr($$, *$2, $4, makeCurPos(@2, data)); }
: binds attrpath '=' expr ';' { $$ = $1; addAttr($$, *$2, $4, makeCurPos(@2, data), data->state); }
| binds INHERIT attrs ';'
{ $$ = $1;
for (auto & i : *$3) {
if ($$->attrs.find(i.symbol) != $$->attrs.end())
dupAttr(i.symbol, makeCurPos(@3, data), $$->attrs[i.symbol].pos);
Pos pos = makeCurPos(@3, data);
dupAttr(data->state, i.symbol, makeCurPos(@3, data), $$->attrs[i.symbol].pos);
auto pos = makeCurPos(@3, data);
$$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprVar(CUR_POS, i.symbol), pos, true));
}
}
@ -547,7 +547,7 @@ binds
/* !!! Should ensure sharing of the expression in $4. */
for (auto & i : *$6) {
if ($$->attrs.find(i.symbol) != $$->attrs.end())
dupAttr(i.symbol, makeCurPos(@6, data), $$->attrs[i.symbol].pos);
dupAttr(data->state, i.symbol, makeCurPos(@6, data), $$->attrs[i.symbol].pos);
$$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprSelect(CUR_POS, $4, i.symbol), makeCurPos(@6, data)));
}
}
@ -565,7 +565,7 @@ attrs
} else
throw ParseError({
.msg = hintfmt("dynamic attributes not allowed in inherit"),
.errPos = makeCurPos(@2, data)
.errPos = data->state.positions[makeCurPos(@2, data)]
});
}
| { $$ = new AttrPath; }
@ -621,8 +621,8 @@ formals
;
formal
: ID { $$ = new Formal(CUR_POS, data->symbols.create($1), 0); }
| ID '?' expr { $$ = new Formal(CUR_POS, data->symbols.create($1), $3); }
: ID { $$ = new Formal{CUR_POS, data->symbols.create($1), 0}; }
| ID '?' expr { $$ = new Formal{CUR_POS, data->symbols.create($1), $3}; }
;
%%
@ -646,19 +646,19 @@ Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
const PathView path, const PathView basePath, std::shared_ptr<StaticEnv> & staticEnv)
{
yyscan_t scanner;
ParseData data(*this);
data.origin = origin;
std::string file;
switch (origin) {
case foFile:
data.file = data.symbols.create(path);
file = path;
break;
case foStdin:
case foString:
data.file = data.symbols.create(text);
file = text;
break;
default:
assert(false);
}
ParseData data(*this, {file, origin});
data.basePath = basePath;
yylex_init(&scanner);
@ -668,7 +668,7 @@ Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
if (res) throw ParseError(data.error.value());
data.result->bindVars(staticEnv);
data.result->bindVars(*this, staticEnv);
return data.result;
}
@ -760,7 +760,7 @@ Path EvalState::findFile(const std::string_view path)
}
Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, const Pos & pos)
Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, const PosIdx pos)
{
for (auto & i : searchPath) {
std::string suffix;
@ -787,7 +787,7 @@ Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, c
? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)"
: "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)",
path),
.errPos = pos
.errPos = positions[pos]
});
debugLastTrace(e);
throw e;

355
src/libexpr/primops.cc
View file

File diff suppressed because it is too large Load diff

4
src/libexpr/primops.hh
View file

@ -38,9 +38,9 @@ struct RegisterPrimOp
them. */
/* Load a ValueInitializer from a DSO and return whatever it initializes */
void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value & v);
void prim_importNative(EvalState & state, const PosIdx pos, Value * * args, Value & v);
/* Execute a program and parse its output */
void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v);
void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v);
}

47
src/libexpr/primops/context.cc
View file

@ -5,7 +5,7 @@
namespace nix {
static void prim_unsafeDiscardStringContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_unsafeDiscardStringContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
PathSet context;
auto s = state.coerceToString(pos, *args[0], context);
@ -15,7 +15,7 @@ static void prim_unsafeDiscardStringContext(EvalState & state, const Pos & pos,
static RegisterPrimOp primop_unsafeDiscardStringContext("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext);
static void prim_hasContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_hasContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
PathSet context;
state.forceString(*args[0], context, pos);
@ -31,7 +31,7 @@ static RegisterPrimOp primop_hasContext("__hasContext", 1, prim_hasContext);
source-only deployment). This primop marks the string context so
that builtins.derivation adds the path to drv.inputSrcs rather than
drv.inputDrvs. */
static void prim_unsafeDiscardOutputDependency(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_unsafeDiscardOutputDependency(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
PathSet context;
auto s = state.coerceToString(pos, *args[0], context);
@ -65,7 +65,7 @@ static RegisterPrimOp primop_unsafeDiscardOutputDependency("__unsafeDiscardOutpu
Note that for a given path any combination of the above attributes
may be present.
*/
static void prim_getContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_getContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
struct ContextInfo {
bool path = false;
@ -134,7 +134,7 @@ static RegisterPrimOp primop_getContext("__getContext", 1, prim_getContext);
See the commentary above unsafeGetContext for details of the
context representation.
*/
static void prim_appendContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_appendContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
PathSet context;
auto orig = state.forceString(*args[0], context, pos);
@ -144,45 +144,46 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
auto sPath = state.symbols.create("path");
auto sAllOutputs = state.symbols.create("allOutputs");
for (auto & i : *args[1]->attrs) {
if (!state.store->isStorePath(i.name))
const auto & name = state.symbols[i.name];
if (!state.store->isStorePath(name))
throw EvalError({
.msg = hintfmt("Context key '%s' is not a store path", i.name),
.errPos = *i.pos
.msg = hintfmt("Context key '%s' is not a store path", name),
.errPos = state.positions[i.pos]
});
if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(i.name));
state.forceAttrs(*i.value, *i.pos);
state.store->ensurePath(state.store->parseStorePath(name));
state.forceAttrs(*i.value, i.pos);
auto iter = i.value->attrs->find(sPath);
if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos))
context.insert(i.name);
if (state.forceBool(*iter->value, iter->pos))
context.emplace(name);
}
iter = i.value->attrs->find(sAllOutputs);
if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos)) {
if (!isDerivation(i.name)) {
if (state.forceBool(*iter->value, iter->pos)) {
if (!isDerivation(name)) {
throw EvalError({
.msg = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name),
.errPos = *i.pos
.msg = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", name),
.errPos = state.positions[i.pos]
});
}
context.insert("=" + std::string(i.name));
context.insert(concatStrings("=", name));
}
}
iter = i.value->attrs->find(state.sOutputs);
if (iter != i.value->attrs->end()) {
state.forceList(*iter->value, *iter->pos);
if (iter->value->listSize() && !isDerivation(i.name)) {
state.forceList(*iter->value, iter->pos);
if (iter->value->listSize() && !isDerivation(name)) {
throw EvalError({
.msg = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name),
.errPos = *i.pos
.msg = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", name),
.errPos = state.positions[i.pos]
});
}
for (auto elem : iter->value->listItems()) {
auto name = state.forceStringNoCtx(*elem, *iter->pos);
context.insert(concatStrings("!", name, "!", i.name));
auto outputName = state.forceStringNoCtx(*elem, iter->pos);
context.insert(concatStrings("!", outputName, "!", name));
}
}
}

36
src/libexpr/primops/fetchClosure.cc
View file

@ -5,7 +5,7 @@
namespace nix {
static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
state.forceAttrs(*args[0], pos);
@ -15,40 +15,42 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
std::optional<StorePath> toPath;
for (auto & attr : *args[0]->attrs) {
if (attr.name == "fromPath") {
const auto & attrName = state.symbols[attr.name];
if (attrName == "fromPath") {
PathSet context;
fromPath = state.coerceToStorePath(*attr.pos, *attr.value, context);
fromPath = state.coerceToStorePath(attr.pos, *attr.value, context);
}
else if (attr.name == "toPath") {
state.forceValue(*attr.value, *attr.pos);
else if (attrName == "toPath") {
state.forceValue(*attr.value, attr.pos);
toCA = true;
if (attr.value->type() != nString || attr.value->string.s != std::string("")) {
PathSet context;
toPath = state.coerceToStorePath(*attr.pos, *attr.value, context);
toPath = state.coerceToStorePath(attr.pos, *attr.value, context);
}
}
else if (attr.name == "fromStore")
fromStoreUrl = state.forceStringNoCtx(*attr.value, *attr.pos);
else if (attrName == "fromStore")
fromStoreUrl = state.forceStringNoCtx(*attr.value, attr.pos);
else
throw Error({
.msg = hintfmt("attribute '%s' isn't supported in call to 'fetchClosure'", attr.name),
.errPos = pos
.msg = hintfmt("attribute '%s' isn't supported in call to 'fetchClosure'", attrName),
.errPos = state.positions[pos]
});
}
if (!fromPath)
throw Error({
.msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromPath"),
.errPos = pos
.errPos = state.positions[pos]
});
if (!fromStoreUrl)
throw Error({
.msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromStore"),
.errPos = pos
.errPos = state.positions[pos]
});
auto parsedURL = parseURL(*fromStoreUrl);
@ -58,13 +60,13 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
!(getEnv("_NIX_IN_TEST").has_value() && parsedURL.scheme == "file"))
throw Error({
.msg = hintfmt("'fetchClosure' only supports http:// and https:// stores"),
.errPos = pos
.errPos = state.positions[pos]
});
if (!parsedURL.query.empty())
throw Error({
.msg = hintfmt("'fetchClosure' does not support URL query parameters (in '%s')", *fromStoreUrl),
.errPos = pos
.errPos = state.positions[pos]
});
auto fromStore = openStore(parsedURL.to_string());
@ -80,7 +82,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
state.store->printStorePath(*fromPath),
state.store->printStorePath(i->second),
state.store->printStorePath(*toPath)),
.errPos = pos
.errPos = state.positions[pos]
});
if (!toPath)
throw Error({
@ -89,7 +91,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
"please set this in the 'toPath' attribute passed to 'fetchClosure'",
state.store->printStorePath(*fromPath),
state.store->printStorePath(i->second)),
.errPos = pos
.errPos = state.positions[pos]
});
}
} else {
@ -105,7 +107,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
throw Error({
.msg = hintfmt("in pure mode, 'fetchClosure' requires a content-addressed path, which '%s' isn't",
state.store->printStorePath(*toPath)),
.errPos = pos
.errPos = state.positions[pos]
});
}

16
src/libexpr/primops/fetchMercurial.cc
View file

@ -7,7 +7,7 @@
namespace nix {
static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchMercurial(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
std::string url;
std::optional<Hash> rev;
@ -22,31 +22,31 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
state.forceAttrs(*args[0], pos);
for (auto & attr : *args[0]->attrs) {
std::string_view n(attr.name);
std::string_view n(state.symbols[attr.name]);
if (n == "url")
url = state.coerceToString(*attr.pos, *attr.value, context, false, false).toOwned();
url = state.coerceToString(attr.pos, *attr.value, context, false, false).toOwned();
else if (n == "rev") {
// Ugly: unlike fetchGit, here the "rev" attribute can
// be both a revision or a branch/tag name.
auto value = state.forceStringNoCtx(*attr.value, *attr.pos);
auto value = state.forceStringNoCtx(*attr.value, attr.pos);
if (std::regex_match(value.begin(), value.end(), revRegex))
rev = Hash::parseAny(value, htSHA1);
else
ref = value;
}
else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos);
name = state.forceStringNoCtx(*attr.value, attr.pos);
else
throw EvalError({
.msg = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name),
.errPos = *attr.pos
.msg = hintfmt("unsupported argument '%s' to 'fetchMercurial'", state.symbols[attr.name]),
.errPos = state.positions[attr.pos]
});
}
if (url.empty())
throw EvalError({
.msg = hintfmt("'url' argument required"),
.errPos = pos
.errPos = state.positions[pos]
});
} else

51
src/libexpr/primops/fetchTree.cc
View file

@ -90,7 +90,7 @@ struct FetchTreeParams {
static void fetchTree(
EvalState & state,
const Pos & pos,
const PosIdx pos,
Value * * args,
Value & v,
std::optional<std::string> type,
@ -111,18 +111,17 @@ static void fetchTree(
{
auto e = EvalError({
.msg = hintfmt("unexpected attribute 'type'"),
.errPos = pos
.errPos = state.positions[pos]
});
state.debugLastTrace(e);
throw e;
}
type = state.forceStringNoCtx(*aType->value, *aType->pos);
type = state.forceStringNoCtx(*aType->value, aType->pos);
} else if (!type)
{
auto e = EvalError({
.msg = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
.errPos = pos
.errPos = state.positions[pos]
});
state.debugLastTrace(e);
throw e;
@ -132,24 +131,24 @@ static void fetchTree(
for (auto & attr : *args[0]->attrs) {
if (attr.name == state.sType) continue;
state.forceValue(*attr.value, *attr.pos);
state.forceValue(*attr.value, attr.pos);
if (attr.value->type() == nPath || attr.value->type() == nString) {
auto s = state.coerceToString(*attr.pos, *attr.value, context, false, false).toOwned();
attrs.emplace(attr.name,
attr.name == "url"
auto s = state.coerceToString(attr.pos, *attr.value, context, false, false).toOwned();
attrs.emplace(state.symbols[attr.name],
state.symbols[attr.name] == "url"
? type == "git"
? fixURIForGit(s, state)
: fixURI(s, state)
: s);
}
else if (attr.value->type() == nBool)
attrs.emplace(attr.name, Explicit<bool>{attr.value->boolean});
attrs.emplace(state.symbols[attr.name], Explicit<bool>{attr.value->boolean});
else if (attr.value->type() == nInt)
attrs.emplace(attr.name, uint64_t(attr.value->integer));
attrs.emplace(state.symbols[attr.name], uint64_t(attr.value->integer));
else
{
auto e = TypeError("fetchTree argument '%s' is %s while a string, Boolean or integer is expected",
attr.name, showType(*attr.value));
state.symbols[attr.name], showType(*attr.value));
state.debugLastTrace(e);
throw e;
}
@ -160,7 +159,7 @@ static void fetchTree(
{
auto e = EvalError({
.msg = hintfmt("attribute 'name' isn’t supported in call to 'fetchTree'"),
.errPos = pos
.errPos = state.positions[pos]
});
state.debugLastTrace(e);
throw e;
@ -185,7 +184,7 @@ static void fetchTree(
if (evalSettings.pureEval && !input.isLocked())
{
auto e = EvalError("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", pos);
auto e = EvalError("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", state.positions[pos]);
state.debugLastTrace(e);
throw e;
}
@ -197,7 +196,7 @@ static void fetchTree(
emitTreeAttrs(state, tree, input2, v, params.emptyRevFallback, false);
}
static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchTree(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
settings.requireExperimentalFeature(Xp::Flakes);
fetchTree(state, pos, args, v, std::nullopt, FetchTreeParams { .allowNameArgument = false });
@ -206,7 +205,7 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
// FIXME: document
static RegisterPrimOp primop_fetchTree("fetchTree", 1, prim_fetchTree);
static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
static void fetch(EvalState & state, const PosIdx pos, Value * * args, Value & v,
const std::string & who, bool unpack, std::string name)
{
std::optional<std::string> url;
@ -219,18 +218,18 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
state.forceAttrs(*args[0], pos);
for (auto & attr : *args[0]->attrs) {
std::string n(attr.name);
std::string_view n(state.symbols[attr.name]);
if (n == "url")
url = state.forceStringNoCtx(*attr.value, *attr.pos);
url = state.forceStringNoCtx(*attr.value, attr.pos);
else if (n == "sha256")
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256);
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, attr.pos), htSHA256);
else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos);
name = state.forceStringNoCtx(*attr.value, attr.pos);
else
{
auto e = EvalError({
.msg = hintfmt("unsupported argument '%s' to '%s'", attr.name, who),
.errPos = *attr.pos
.msg = hintfmt("unsupported argument '%s' to '%s'", n, who),
.errPos = state.positions[attr.pos]
});
state.debugLastTrace(e);
throw e;
@ -241,7 +240,7 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
{
auto e = EvalError({
.msg = hintfmt("'url' argument required"),
.errPos = pos
.errPos = state.positions[pos]
});
state.debugLastTrace(e);
throw e;
@ -299,7 +298,7 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
state.allowAndSetStorePathString(storePath, v);
}
static void prim_fetchurl(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchurl(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
fetch(state, pos, args, v, "fetchurl", false, "");
}
@ -315,7 +314,7 @@ static RegisterPrimOp primop_fetchurl({
.fun = prim_fetchurl,
});
static void prim_fetchTarball(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchTarball(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
fetch(state, pos, args, v, "fetchTarball", true, "source");
}
@ -366,7 +365,7 @@ static RegisterPrimOp primop_fetchTarball({
.fun = prim_fetchTarball,
});
static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Value & v)
static void prim_fetchGit(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
fetchTree(state, pos, args, v, "git", FetchTreeParams { .emptyRevFallback = true, .allowNameArgument = true });
}

4
src/libexpr/primops/fromTOML.cc
View file

@ -5,7 +5,7 @@
namespace nix {
static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Value & val)
static void prim_fromTOML(EvalState & state, const PosIdx pos, Value * * args, Value & val)
{
auto toml = state.forceStringNoCtx(*args[0], pos);
@ -73,7 +73,7 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va
} catch (std::exception & e) { // TODO: toml::syntax_error
throw EvalError({
.msg = hintfmt("while parsing a TOML string: %s", e.what()),
.errPos = pos
.errPos = state.positions[pos]
});
}
}

99
src/libexpr/symbol-table.hh
View file

@ -5,44 +5,32 @@
#include <unordered_map>
#include "types.hh"
#include "chunked-vector.hh"
namespace nix {
/* Symbol table used by the parser and evaluator to represent and look
up identifiers and attributes efficiently. SymbolTable::create()
converts a string into a symbol. Symbols have the property that
they can be compared efficiently (using a pointer equality test),
they can be compared efficiently (using an equality test),
because the symbol table stores only one copy of each string. */
class Symbol
/* This class mainly exists to give us an operator<< for ostreams. We could also
return plain strings from SymbolTable, but then we'd have to wrap every
instance of a symbol that is fmt()ed, which is inconvenient and error-prone. */
class SymbolStr
{
private:
const std::string * s; // pointer into SymbolTable
Symbol(const std::string * s) : s(s) { };
friend class SymbolTable;
private:
const std::string * s;
explicit SymbolStr(const std::string & symbol): s(&symbol) {}
public:
Symbol() : s(0) { };
bool operator == (const Symbol & s2) const
{
return s == s2.s;
}
// FIXME: remove
bool operator == (std::string_view s2) const
{
return s->compare(s2) == 0;
}
bool operator != (const Symbol & s2) const
{
return s != s2.s;
}
bool operator < (const Symbol & s2) const
{
return s < s2.s;
return *s == s2;
}
operator const std::string & () const
@ -55,51 +43,78 @@ public:
return *s;
}
bool set() const
{
return s;
}
friend std::ostream & operator <<(std::ostream & os, const SymbolStr & symbol);
};
bool empty() const
{
return s->empty();
}
class Symbol
{
friend class SymbolTable;
friend std::ostream & operator << (std::ostream & str, const Symbol & sym);
private:
uint32_t id;
explicit Symbol(uint32_t id): id(id) {}
public:
Symbol() : id(0) {}
explicit operator bool() const { return id > 0; }
bool operator<(const Symbol other) const { return id < other.id; }
bool operator==(const Symbol other) const { return id == other.id; }
bool operator!=(const Symbol other) const { return id != other.id; }
};
class SymbolTable
{
private:
std::unordered_map<std::string_view, Symbol> symbols;
std::list<std::string> store;
std::unordered_map<std::string_view, std::pair<const std::string *, uint32_t>> symbols;
ChunkedVector<std::string, 8192> store{16};
public:
Symbol create(std::string_view s)
{
// Most symbols are looked up more than once, so we trade off insertion performance
// for lookup performance.
// TODO: could probably be done more efficiently with transparent Hash and Equals
// on the original implementation using unordered_set
// FIXME: make this thread-safe.
auto it = symbols.find(s);
if (it != symbols.end()) return it->second;
if (it != symbols.end()) return Symbol(it->second.second + 1);
auto & rawSym = store.emplace_back(s);
return symbols.emplace(rawSym, Symbol(&rawSym)).first->second;
const auto & [rawSym, idx] = store.add(std::string(s));
symbols.emplace(rawSym, std::make_pair(&rawSym, idx));
return Symbol(idx + 1);
}
std::vector<SymbolStr> resolve(const std::vector<Symbol> & symbols) const
{
std::vector<SymbolStr> result;
result.reserve(symbols.size());
for (auto sym : symbols)
result.push_back((*this)[sym]);
return result;
}
SymbolStr operator[](Symbol s) const
{
if (s.id == 0 || s.id > store.size())
abort();
return SymbolStr(store[s.id - 1]);
}
size_t size() const
{
return symbols.size();
return store.size();
}
size_t totalSize() const;
template<typename T>
void dump(T callback)
void dump(T callback) const
{
for (auto & s : store)
callback(s);
store.forEach(callback);
}
};

14
src/libexpr/value-to-json.cc
View file

@ -10,7 +10,7 @@
namespace nix {
void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, JSONPlaceholder & out, PathSet & context)
Value & v, const PosIdx pos, JSONPlaceholder & out, PathSet & context)
{
checkInterrupt();
@ -50,14 +50,14 @@ void printValueAsJSON(EvalState & state, bool strict,
auto obj(out.object());
StringSet names;
for (auto & j : *v.attrs)
names.insert(j.name);
names.emplace(state.symbols[j.name]);
for (auto & j : names) {
Attr & a(*v.attrs->find(state.symbols.create(j)));
auto placeholder(obj.placeholder(j));
printValueAsJSON(state, strict, *a.value, *a.pos, placeholder, context);
printValueAsJSON(state, strict, *a.value, a.pos, placeholder, context);
}
} else
printValueAsJSON(state, strict, *i->value, *i->pos, out, context);
printValueAsJSON(state, strict, *i->value, i->pos, out, context);
break;
}
@ -82,16 +82,16 @@ void printValueAsJSON(EvalState & state, bool strict,
case nFunction:
auto e = TypeError({
.msg = hintfmt("cannot convert %1% to JSON", showType(v)),
.errPos = v.determinePos(pos)
.errPos = state.positions[v.determinePos(pos)]
});
e.addTrace(pos, hintfmt("message for the trace"));
e.addTrace(state.positions[pos], hintfmt("message for the trace"));
state.debugLastTrace(e);
throw e;
}
}
void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, std::ostream & str, PathSet & context)
Value & v, const PosIdx pos, std::ostream & str, PathSet & context)
{
JSONPlaceholder out(str);
printValueAsJSON(state, strict, v, pos, out, context);

4
src/libexpr/value-to-json.hh
View file

@ -11,9 +11,9 @@ namespace nix {
class JSONPlaceholder;
void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, JSONPlaceholder & out, PathSet & context);
Value & v, const PosIdx pos, JSONPlaceholder & out, PathSet & context);
void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, std::ostream & str, PathSet & context);
Value & v, const PosIdx pos, std::ostream & str, PathSet & context);
}

30
src/libexpr/value-to-xml.cc
View file

@ -19,10 +19,10 @@ static XMLAttrs singletonAttrs(const std::string & name, const std::string & val
static void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos);
const PosIdx pos);
static void posToXML(XMLAttrs & xmlAttrs, const Pos & pos)
static void posToXML(EvalState & state, XMLAttrs & xmlAttrs, const Pos & pos)
{
xmlAttrs["path"] = pos.file;
xmlAttrs["line"] = (format("%1%") % pos.line).str();
@ -36,25 +36,25 @@ static void showAttrs(EvalState & state, bool strict, bool location,
StringSet names;
for (auto & i : attrs)
names.insert(i.name);
names.emplace(state.symbols[i.name]);
for (auto & i : names) {
Attr & a(*attrs.find(state.symbols.create(i)));
XMLAttrs xmlAttrs;
xmlAttrs["name"] = i;
if (location && a.pos != ptr(&noPos)) posToXML(xmlAttrs, *a.pos);
if (location && a.pos) posToXML(state, xmlAttrs, state.positions[a.pos]);
XMLOpenElement _(doc, "attr", xmlAttrs);
printValueAsXML(state, strict, location,
*a.value, doc, context, drvsSeen, *a.pos);
*a.value, doc, context, drvsSeen, a.pos);
}
}
static void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos)
const PosIdx pos)
{
checkInterrupt();
@ -93,14 +93,14 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
Path drvPath;
a = v.attrs->find(state.sDrvPath);
if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value, *a->pos);
if (strict) state.forceValue(*a->value, a->pos);
if (a->value->type() == nString)
xmlAttrs["drvPath"] = drvPath = a->value->string.s;
}
a = v.attrs->find(state.sOutPath);
if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value, *a->pos);
if (strict) state.forceValue(*a->value, a->pos);
if (a->value->type() == nString)
xmlAttrs["outPath"] = a->value->string.s;
}
@ -134,18 +134,18 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
break;
}
XMLAttrs xmlAttrs;
if (location) posToXML(xmlAttrs, v.lambda.fun->pos);
if (location) posToXML(state, xmlAttrs, state.positions[v.lambda.fun->pos]);
XMLOpenElement _(doc, "function", xmlAttrs);
if (v.lambda.fun->hasFormals()) {
XMLAttrs attrs;
if (!v.lambda.fun->arg.empty()) attrs["name"] = v.lambda.fun->arg;
if (v.lambda.fun->arg) attrs["name"] = state.symbols[v.lambda.fun->arg];
if (v.lambda.fun->formals->ellipsis) attrs["ellipsis"] = "1";
XMLOpenElement _(doc, "attrspat", attrs);
for (auto & i : v.lambda.fun->formals->lexicographicOrder())
doc.writeEmptyElement("attr", singletonAttrs("name", i.name));
for (auto & i : v.lambda.fun->formals->lexicographicOrder(state.symbols))
doc.writeEmptyElement("attr", singletonAttrs("name", state.symbols[i.name]));
} else
doc.writeEmptyElement("varpat", singletonAttrs("name", v.lambda.fun->arg));
doc.writeEmptyElement("varpat", singletonAttrs("name", state.symbols[v.lambda.fun->arg]));
break;
}
@ -166,14 +166,14 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
void ExternalValueBase::printValueAsXML(EvalState & state, bool strict,
bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos) const
const PosIdx pos) const
{
doc.writeEmptyElement("unevaluated");
}
void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, std::ostream & out, PathSet & context, const Pos & pos)
Value & v, std::ostream & out, PathSet & context, const PosIdx pos)
{
XMLWriter doc(true, out);
XMLOpenElement root(doc, "expr");

2
src/libexpr/value-to-xml.hh
View file

@ -9,6 +9,6 @@
namespace nix {
void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, std::ostream & out, PathSet & context, const Pos & pos);
Value & v, std::ostream & out, PathSet & context, const PosIdx pos);
}

14
src/libexpr/value.hh
View file

@ -56,6 +56,7 @@ struct Expr;
struct ExprLambda;
struct PrimOp;
class Symbol;
class PosIdx;
struct Pos;
class StorePath;
class Store;
@ -103,7 +104,7 @@ class ExternalValueBase
/* Print the value as XML. Defaults to unevaluated */
virtual void printValueAsXML(EvalState & state, bool strict, bool location,
XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos) const;
const PosIdx pos) const;
virtual ~ExternalValueBase()
{
@ -120,11 +121,11 @@ private:
friend std::string showType(const Value & v);
void print(std::ostream & str, std::set<const void *> * seen) const;
void print(const SymbolTable & symbols, std::ostream & str, std::set<const void *> * seen) const;
public:
void print(std::ostream & str, bool showRepeated = false) const;
void print(const SymbolTable & symbols, std::ostream & str, bool showRepeated = false) const;
// Functions needed to distinguish the type
// These should be removed eventually, by putting the functionality that's
@ -250,11 +251,6 @@ public:
void mkStringMove(const char * s, const PathSet & context);
inline void mkString(const Symbol & s)
{
mkString(((const std::string &) s).c_str());
}
inline void mkPath(const char * s)
{
clearValue();
@ -368,7 +364,7 @@ public:
return internalType == tList1 ? 1 : internalType == tList2 ? 2 : bigList.size;
}
Pos determinePos(const Pos & pos) const;
PosIdx determinePos(const PosIdx pos) const;
/* Check whether forcing this value requires a trivial amount of
computation. In particular, function applications are

30
src/libfetchers/git.cc
View file

@ -21,9 +21,18 @@ namespace nix::fetchers {
// old version of git, which will ignore unrecognized `-c` options.
const std::string gitInitialBranch = "__nix_dummy_branch";
static std::string getGitDir()
{
auto gitDir = getEnv("GIT_DIR");
if (!gitDir) {
return ".git";
}
return *gitDir;
}
static std::string readHead(const Path & path)
{
return chomp(runProgram("git", true, { "-C", path, "rev-parse", "--abbrev-ref", "HEAD" }));
return chomp(runProgram("git", true, { "-C", path, "--git-dir", ".git", "rev-parse", "--abbrev-ref", "HEAD" }));
}
static bool isNotDotGitDirectory(const Path & path)
@ -150,13 +159,14 @@ struct GitInputScheme : InputScheme
{
auto sourcePath = getSourcePath(input);
assert(sourcePath);
auto gitDir = getGitDir();
runProgram("git", true,
{ "-C", *sourcePath, "add", "--force", "--intent-to-add", "--", std::string(file) });
{ "-C", *sourcePath, "--git-dir", gitDir, "add", "--force", "--intent-to-add", "--", std::string(file) });
if (commitMsg)
runProgram("git", true,
{ "-C", *sourcePath, "commit", std::string(file), "-m", *commitMsg });
{ "-C", *sourcePath, "--git-dir", gitDir, "commit", std::string(file), "-m", *commitMsg });
}
std::pair<bool, std::string> getActualUrl(const Input & input) const
@ -175,6 +185,7 @@ struct GitInputScheme : InputScheme
std::pair<StorePath, Input> fetch(ref<Store> store, const Input & _input) override
{
Input input(_input);
auto gitDir = getGitDir();
std::string name = input.getName();
@ -237,7 +248,7 @@ struct GitInputScheme : InputScheme
since that is the refrence we want to use later on. */
auto result = runProgram(RunOptions {
.program = "git",
.args = { "-C", actualUrl, "--git-dir=.git", "rev-parse", "--verify", "--no-revs", "HEAD^{commit}" },
.args = { "-C", actualUrl, "--git-dir", gitDir, "rev-parse", "--verify", "--no-revs", "HEAD^{commit}" },
.environment = env,
.mergeStderrToStdout = true
});
@ -259,7 +270,7 @@ struct GitInputScheme : InputScheme
if (hasHead) {
// Using git diff is preferrable over lower-level operations here,
// because its conceptually simpler and we only need the exit code anyways.
auto gitDiffOpts = Strings({ "-C", actualUrl, "diff", "HEAD", "--quiet"});
auto gitDiffOpts = Strings({ "-C", actualUrl, "--git-dir", gitDir, "diff", "HEAD", "--quiet"});
if (!submodules) {
// Changes in submodules should only make the tree dirty
// when those submodules will be copied as well.
@ -284,7 +295,7 @@ struct GitInputScheme : InputScheme
if (fetchSettings.warnDirty)
warn("Git tree '%s' is dirty", actualUrl);
auto gitOpts = Strings({ "-C", actualUrl, "ls-files", "-z" });
auto gitOpts = Strings({ "-C", actualUrl, "--git-dir", gitDir, "ls-files", "-z" });
if (submodules)
gitOpts.emplace_back("--recurse-submodules");
@ -314,7 +325,7 @@ struct GitInputScheme : InputScheme
// modified dirty file?
input.attrs.insert_or_assign(
"lastModified",
hasHead ? std::stoull(runProgram("git", true, { "-C", actualPath, "log", "-1", "--format=%ct", "--no-show-signature", "HEAD" })) : 0);
hasHead ? std::stoull(runProgram("git", true, { "-C", actualPath, "--git-dir", gitDir, "log", "-1", "--format=%ct", "--no-show-signature", "HEAD" })) : 0);
return {std::move(storePath), input};
}
@ -335,7 +346,7 @@ struct GitInputScheme : InputScheme
if (!input.getRev())
input.attrs.insert_or_assign("rev",
Hash::parseAny(chomp(runProgram("git", true, { "-C", actualUrl, "rev-parse", *input.getRef() })), htSHA1).gitRev());
Hash::parseAny(chomp(runProgram("git", true, { "-C", actualUrl, "--git-dir", gitDir, "rev-parse", *input.getRef() })), htSHA1).gitRev());
repoDir = actualUrl;
@ -351,6 +362,7 @@ struct GitInputScheme : InputScheme
Path cacheDir = getCacheDir() + "/nix/gitv3/" + hashString(htSHA256, actualUrl).to_string(Base32, false);
repoDir = cacheDir;
gitDir = ".";
createDirs(dirOf(cacheDir));
PathLocks cacheDirLock({cacheDir + ".lock"});
@ -427,7 +439,7 @@ struct GitInputScheme : InputScheme
// cache dir lock is removed at scope end; we will only use read-only operations on specific revisions in the remainder
}
bool isShallow = chomp(runProgram("git", true, { "-C", repoDir, "rev-parse", "--is-shallow-repository" })) == "true";
bool isShallow = chomp(runProgram("git", true, { "-C", repoDir, "--git-dir", gitDir, "rev-parse", "--is-shallow-repository" })) == "true";
if (isShallow && !shallow)
throw Error("'%s' is a shallow Git repository, but a non-shallow repository is needed", actualUrl);

4
src/libfetchers/mercurial.cc
View file

@ -36,7 +36,7 @@ static std::string runHg(const Strings & args, const std::optional<std::string>
auto res = runProgram(std::move(opts));
if (!statusOk(res.first))
throw ExecError(res.first, fmt("hg %1%", statusToString(res.first)));
throw ExecError(res.first, "hg %1%", statusToString(res.first));
return res.second;
}
@ -273,7 +273,7 @@ struct MercurialInputScheme : InputScheme
runHg({ "recover", "-R", cacheDir });
runHg({ "pull", "-R", cacheDir, "--", actualUrl });
} else {
throw ExecError(e.status, fmt("'hg pull' %s", statusToString(e.status)));
throw ExecError(e.status, "'hg pull' %s", statusToString(e.status));
}
}
} else {

22
src/libmain/shared.cc
View file

@ -60,37 +60,37 @@ void printMissing(ref<Store> store, const StorePathSet & willBuild,
{
if (!willBuild.empty()) {
if (willBuild.size() == 1)
printMsg(lvl, fmt("this derivation will be built:"));
printMsg(lvl, "this derivation will be built:");
else
printMsg(lvl, fmt("these %d derivations will be built:", willBuild.size()));
printMsg(lvl, "these %d derivations will be built:", willBuild.size());
auto sorted = store->topoSortPaths(willBuild);
reverse(sorted.begin(), sorted.end());
for (auto & i : sorted)
printMsg(lvl, fmt(" %s", store->printStorePath(i)));
printMsg(lvl, " %s", store->printStorePath(i));
}
if (!willSubstitute.empty()) {
const float downloadSizeMiB = downloadSize / (1024.f * 1024.f);
const float narSizeMiB = narSize / (1024.f * 1024.f);
if (willSubstitute.size() == 1) {
printMsg(lvl, fmt("this path will be fetched (%.2f MiB download, %.2f MiB unpacked):",
printMsg(lvl, "this path will be fetched (%.2f MiB download, %.2f MiB unpacked):",
downloadSizeMiB,
narSizeMiB));
narSizeMiB);
} else {
printMsg(lvl, fmt("these %d paths will be fetched (%.2f MiB download, %.2f MiB unpacked):",
printMsg(lvl, "these %d paths will be fetched (%.2f MiB download, %.2f MiB unpacked):",
willSubstitute.size(),
downloadSizeMiB,
narSizeMiB));
narSizeMiB);
}
for (auto & i : willSubstitute)
printMsg(lvl, fmt(" %s", store->printStorePath(i)));
printMsg(lvl, " %s", store->printStorePath(i));
}
if (!unknown.empty()) {
printMsg(lvl, fmt("don't know how to build these paths%s:",
(settings.readOnlyMode ? " (may be caused by read-only store access)" : "")));
printMsg(lvl, "don't know how to build these paths%s:",
(settings.readOnlyMode ? " (may be caused by read-only store access)" : ""));
for (auto & i : unknown)
printMsg(lvl, fmt(" %s", store->printStorePath(i)));
printMsg(lvl, " %s", store->printStorePath(i));
}
}

5
src/libstore/build/derivation-goal.cc
View file

@ -786,8 +786,7 @@ void runPostBuildHook(
Store & store,
Logger & logger,
const StorePath & drvPath,
StorePathSet outputPaths
)
const StorePathSet & outputPaths)
{
auto hook = settings.postBuildHook;
if (hook == "")
@ -906,7 +905,7 @@ void DerivationGoal::buildDone()
auto builtOutputs = registerOutputs();
StorePathSet outputPaths;
for (auto & [_, output] : buildResult.builtOutputs)
for (auto & [_, output] : builtOutputs)
outputPaths.insert(output.outPath);
runPostBuildHook(
worker.store,

15
src/libstore/ca-specific-schema.sql
View file

@ -13,12 +13,27 @@ create table if not exists Realisations (
create index if not exists IndexRealisations on Realisations(drvPath, outputName);
-- We can end-up in a weird edge-case where a path depends on itself because
-- it’s an output of a CA derivation, that happens to be the same as one of its
-- dependencies.
-- In that case we have a dependency loop (path -> realisation1 -> realisation2
-- -> path) that we need to break by removing the dependencies between the
-- realisations
create trigger if not exists DeleteSelfRefsViaRealisations before delete on ValidPaths
begin
delete from RealisationsRefs where realisationReference in (
select id from Realisations where outputPath = old.id
);
end;
create table if not exists RealisationsRefs (
referrer integer not null,
realisationReference integer,
foreign key (referrer) references Realisations(id) on delete cascade,
foreign key (realisationReference) references Realisations(id) on delete restrict
);
-- used by deletion trigger
create index if not exists IndexRealisationsRefsRealisationReference on RealisationsRefs(realisationReference);
-- used by QueryRealisationReferences
create index if not exists IndexRealisationsRefs on RealisationsRefs(referrer);

13
src/libstore/filetransfer.cc
View file

@ -443,14 +443,13 @@ struct curlFileTransfer : public FileTransfer
: httpStatus != 0
? FileTransferError(err,
std::move(response),
fmt("unable to %s '%s': HTTP error %d ('%s')",
request.verb(), request.uri, httpStatus, statusMsg)
+ (code == CURLE_OK ? "" : fmt(" (curl error: %s)", curl_easy_strerror(code)))
)
"unable to %s '%s': HTTP error %d%s",
request.verb(), request.uri, httpStatus,
code == CURLE_OK ? "" : fmt(" (curl error: %s)", curl_easy_strerror(code)))
: FileTransferError(err,
std::move(response),
fmt("unable to %s '%s': %s (%d)",
request.verb(), request.uri, curl_easy_strerror(code), code));
"unable to %s '%s': %s (%d)",
request.verb(), request.uri, curl_easy_strerror(code), code);
/* If this is a transient error, then maybe retry the
download after a while. If we're writing to a
@ -704,7 +703,7 @@ struct curlFileTransfer : public FileTransfer
auto s3Res = s3Helper.getObject(bucketName, key);
FileTransferResult res;
if (!s3Res.data)
throw FileTransferError(NotFound, {}, "S3 object '%s' does not exist", request.uri);
throw FileTransferError(NotFound, "S3 object '%s' does not exist", request.uri);
res.data = std::move(*s3Res.data);
callback(std::move(res));
#else

2
src/libstore/filetransfer.hh
View file

@ -31,7 +31,7 @@ struct FileTransferSettings : Config
R"(
The timeout (in seconds) for establishing connections in the
binary cache substituter. It corresponds to `curl`’s
`--connect-timeout` option.
`--connect-timeout` option. A value of 0 means no limit.
)"};
Setting<unsigned long> stalledDownloadTimeout{

23
src/libstore/local-store.cc
View file

@ -81,7 +81,7 @@ int getSchema(Path schemaPath)
void migrateCASchema(SQLite& db, Path schemaPath, AutoCloseFD& lockFd)
{
const int nixCASchemaVersion = 3;
const int nixCASchemaVersion = 4;
int curCASchema = getSchema(schemaPath);
if (curCASchema != nixCASchemaVersion) {
if (curCASchema > nixCASchemaVersion) {
@ -143,6 +143,21 @@ void migrateCASchema(SQLite& db, Path schemaPath, AutoCloseFD& lockFd)
)");
txn.commit();
}
if (curCASchema < 4) {
SQLiteTxn txn(db);
db.exec(R"(
create trigger if not exists DeleteSelfRefsViaRealisations before delete on ValidPaths
begin
delete from RealisationsRefs where realisationReference in (
select id from Realisations where outputPath = old.id
);
end;
-- used by deletion trigger
create index if not exists IndexRealisationsRefsRealisationReference on RealisationsRefs(realisationReference);
)");
txn.commit();
}
writeFile(schemaPath, fmt("%d", nixCASchemaVersion));
lockFile(lockFd.get(), ltRead, true);
}
@ -482,18 +497,18 @@ void LocalStore::openDB(State & state, bool create)
SQLiteStmt stmt;
stmt.create(db, "pragma main.journal_mode;");
if (sqlite3_step(stmt) != SQLITE_ROW)
throwSQLiteError(db, "querying journal mode");
SQLiteError::throw_(db, "querying journal mode");
prevMode = std::string((const char *) sqlite3_column_text(stmt, 0));
}
if (prevMode != mode &&
sqlite3_exec(db, ("pragma main.journal_mode = " + mode + ";").c_str(), 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "setting journal mode");
SQLiteError::throw_(db, "setting journal mode");
/* Increase the auto-checkpoint interval to 40000 pages. This
seems enough to ensure that instantiating the NixOS system
derivation is done in a single fsync(). */
if (mode == "wal" && sqlite3_exec(db, "pragma wal_autocheckpoint = 40000;", 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "setting autocheckpoint interval");
SQLiteError::throw_(db, "setting autocheckpoint interval");
/* Initialise the database schema, if necessary. */
if (create) {

1
src/libstore/s3.hh
View file

@ -5,6 +5,7 @@
#include "ref.hh"
#include <optional>
#include <string>
namespace Aws { namespace Client { class ClientConfiguration; } }
namespace Aws { namespace S3 { class S3Client; } }

54
src/libstore/sqlite.cc
View file

@ -8,22 +8,32 @@
namespace nix {
[[noreturn]] void throwSQLiteError(sqlite3 * db, const FormatOrString & fs)
SQLiteError::SQLiteError(const char *path, int errNo, int extendedErrNo, hintformat && hf)
: Error(""), path(path), errNo(errNo), extendedErrNo(extendedErrNo)
{
err.msg = hintfmt("%s: %s (in '%s')",
normaltxt(hf.str()),
sqlite3_errstr(extendedErrNo),
path ? path : "(in-memory)");
}
[[noreturn]] void SQLiteError::throw_(sqlite3 * db, hintformat && hf)
{
int err = sqlite3_errcode(db);
int exterr = sqlite3_extended_errcode(db);
auto path = sqlite3_db_filename(db, nullptr);
if (!path) path = "(in-memory)";
if (err == SQLITE_BUSY || err == SQLITE_PROTOCOL) {
throw SQLiteBusy(
auto exp = SQLiteBusy(path, err, exterr, std::move(hf));
exp.err.msg = hintfmt(
err == SQLITE_PROTOCOL
? fmt("SQLite database '%s' is busy (SQLITE_PROTOCOL)", path)
: fmt("SQLite database '%s' is busy", path));
}
else
throw SQLiteError("%s: %s (in '%s')", fs.s, sqlite3_errstr(exterr), path);
? "SQLite database '%s' is busy (SQLITE_PROTOCOL)"
: "SQLite database '%s' is busy",
path ? path : "(in-memory)");
throw exp;
} else
throw SQLiteError(path, err, exterr, std::move(hf));
}
SQLite::SQLite(const Path & path, bool create)
@ -37,7 +47,7 @@ SQLite::SQLite(const Path & path, bool create)
throw Error("cannot open SQLite database '%s'", path);
if (sqlite3_busy_timeout(db, 60 * 60 * 1000) != SQLITE_OK)
throwSQLiteError(db, "setting timeout");
SQLiteError::throw_(db, "setting timeout");
exec("pragma foreign_keys = 1");
}
@ -46,7 +56,7 @@ SQLite::~SQLite()
{
try {
if (db && sqlite3_close(db) != SQLITE_OK)
throwSQLiteError(db, "closing database");
SQLiteError::throw_(db, "closing database");
} catch (...) {
ignoreException();
}
@ -62,7 +72,7 @@ void SQLite::exec(const std::string & stmt)
{
retrySQLite<void>([&]() {
if (sqlite3_exec(db, stmt.c_str(), 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, format("executing SQLite statement '%s'") % stmt);
SQLiteError::throw_(db, "executing SQLite statement '%s'", stmt);
});
}
@ -76,7 +86,7 @@ void SQLiteStmt::create(sqlite3 * db, const std::string & sql)
checkInterrupt();
assert(!stmt);
if (sqlite3_prepare_v2(db, sql.c_str(), -1, &stmt, 0) != SQLITE_OK)
throwSQLiteError(db, fmt("creating statement '%s'", sql));
SQLiteError::throw_(db, "creating statement '%s'", sql);
this->db = db;
this->sql = sql;
}
@ -85,7 +95,7 @@ SQLiteStmt::~SQLiteStmt()
{
try {
if (stmt && sqlite3_finalize(stmt) != SQLITE_OK)
throwSQLiteError(db, fmt("finalizing statement '%s'", sql));
SQLiteError::throw_(db, "finalizing statement '%s'", sql);
} catch (...) {
ignoreException();
}
@ -109,7 +119,7 @@ SQLiteStmt::Use & SQLiteStmt::Use::operator () (std::string_view value, bool not
{
if (notNull) {
if (sqlite3_bind_text(stmt, curArg++, value.data(), -1, SQLITE_TRANSIENT) != SQLITE_OK)
throwSQLiteError(stmt.db, "binding argument");
SQLiteError::throw_(stmt.db, "binding argument");
} else
bind();
return *this;
@ -119,7 +129,7 @@ SQLiteStmt::Use & SQLiteStmt::Use::operator () (const unsigned char * data, size
{
if (notNull) {
if (sqlite3_bind_blob(stmt, curArg++, data, len, SQLITE_TRANSIENT) != SQLITE_OK)
throwSQLiteError(stmt.db, "binding argument");
SQLiteError::throw_(stmt.db, "binding argument");
} else
bind();
return *this;
@ -129,7 +139,7 @@ SQLiteStmt::Use & SQLiteStmt::Use::operator () (int64_t value, bool notNull)
{
if (notNull) {
if (sqlite3_bind_int64(stmt, curArg++, value) != SQLITE_OK)
throwSQLiteError(stmt.db, "binding argument");
SQLiteError::throw_(stmt.db, "binding argument");
} else
bind();
return *this;
@ -138,7 +148,7 @@ SQLiteStmt::Use & SQLiteStmt::Use::operator () (int64_t value, bool notNull)
SQLiteStmt::Use & SQLiteStmt::Use::bind()
{
if (sqlite3_bind_null(stmt, curArg++) != SQLITE_OK)
throwSQLiteError(stmt.db, "binding argument");
SQLiteError::throw_(stmt.db, "binding argument");
return *this;
}
@ -152,14 +162,14 @@ void SQLiteStmt::Use::exec()
int r = step();
assert(r != SQLITE_ROW);
if (r != SQLITE_DONE)
throwSQLiteError(stmt.db, fmt("executing SQLite statement '%s'", sqlite3_expanded_sql(stmt.stmt)));
SQLiteError::throw_(stmt.db, fmt("executing SQLite statement '%s'", sqlite3_expanded_sql(stmt.stmt)));
}
bool SQLiteStmt::Use::next()
{
int r = step();
if (r != SQLITE_DONE && r != SQLITE_ROW)
throwSQLiteError(stmt.db, fmt("executing SQLite query '%s'", sqlite3_expanded_sql(stmt.stmt)));
SQLiteError::throw_(stmt.db, fmt("executing SQLite query '%s'", sqlite3_expanded_sql(stmt.stmt)));
return r == SQLITE_ROW;
}
@ -185,14 +195,14 @@ SQLiteTxn::SQLiteTxn(sqlite3 * db)
{
this->db = db;
if (sqlite3_exec(db, "begin;", 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "starting transaction");
SQLiteError::throw_(db, "starting transaction");
active = true;
}
void SQLiteTxn::commit()
{
if (sqlite3_exec(db, "commit;", 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "committing transaction");
SQLiteError::throw_(db, "committing transaction");
active = false;
}
@ -200,7 +210,7 @@ SQLiteTxn::~SQLiteTxn()
{
try {
if (active && sqlite3_exec(db, "rollback;", 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "aborting transaction");
SQLiteError::throw_(db, "aborting transaction");
} catch (...) {
ignoreException();
}

26
src/libstore/sqlite.hh
View file

@ -96,10 +96,30 @@ struct SQLiteTxn
};
MakeError(SQLiteError, Error);
MakeError(SQLiteBusy, SQLiteError);
struct SQLiteError : Error
{
const char *path;
int errNo, extendedErrNo;
[[noreturn]] void throwSQLiteError(sqlite3 * db, const FormatOrString & fs);
template<typename... Args>
[[noreturn]] static void throw_(sqlite3 * db, const std::string & fs, const Args & ... args) {
throw_(db, hintfmt(fs, args...));
}
SQLiteError(const char *path, int errNo, int extendedErrNo, hintformat && hf);
protected:
template<typename... Args>
SQLiteError(const char *path, int errNo, int extendedErrNo, const std::string & fs, const Args & ... args)
: SQLiteError(path, errNo, extendedErrNo, hintfmt(fs, args...))
{ }
[[noreturn]] static void throw_(sqlite3 * db, hintformat && hf);
};
MakeError(SQLiteBusy, SQLiteError);
void handleSQLiteBusy(const SQLiteBusy & e);

36
src/libutil/args.cc
View file

@ -127,11 +127,11 @@ bool Args::processFlag(Strings::iterator & pos, Strings::iterator end)
if (flag.handler.arity == ArityAny) break;
throw UsageError("flag '%s' requires %d argument(s)", name, flag.handler.arity);
}
if (flag.completer)
if (auto prefix = needsCompletion(*pos)) {
anyCompleted = true;
if (auto prefix = needsCompletion(*pos)) {
anyCompleted = true;
if (flag.completer)
flag.completer(n, *prefix);
}
}
args.push_back(*pos++);
}
if (!anyCompleted)
@ -146,6 +146,7 @@ bool Args::processFlag(Strings::iterator & pos, Strings::iterator end)
&& hasPrefix(name, std::string(*prefix, 2)))
completions->add("--" + name, flag->description);
}
return false;
}
auto i = longFlags.find(std::string(*pos, 2));
if (i == longFlags.end()) return false;
@ -187,10 +188,12 @@ bool Args::processArgs(const Strings & args, bool finish)
{
std::vector<std::string> ss;
for (const auto &[n, s] : enumerate(args)) {
ss.push_back(s);
if (exp.completer)
if (auto prefix = needsCompletion(s))
if (auto prefix = needsCompletion(s)) {
ss.push_back(*prefix);
if (exp.completer)
exp.completer(n, *prefix);
} else
ss.push_back(s);
}
exp.handler.fun(ss);
expectedArgs.pop_front();
@ -279,21 +282,22 @@ static void _completePath(std::string_view prefix, bool onlyDirs)
{
completionType = ctFilenames;
glob_t globbuf;
int flags = GLOB_NOESCAPE | GLOB_TILDE;
int flags = GLOB_NOESCAPE;
#ifdef GLOB_ONLYDIR
if (onlyDirs)
flags |= GLOB_ONLYDIR;
#endif
if (glob((std::string(prefix) + "*").c_str(), flags, nullptr, &globbuf) == 0) {
// using expandTilde here instead of GLOB_TILDE(_CHECK) so that ~<Tab> expands to /home/user/
if (glob((expandTilde(prefix) + "*").c_str(), flags, nullptr, &globbuf) == 0) {
for (size_t i = 0; i < globbuf.gl_pathc; ++i) {
if (onlyDirs) {
auto st = lstat(globbuf.gl_pathv[i]);
auto st = stat(globbuf.gl_pathv[i]);
if (!S_ISDIR(st.st_mode)) continue;
}
completions->add(globbuf.gl_pathv[i]);
}
globfree(&globbuf);
}
globfree(&globbuf);
}
void completePath(size_t, std::string_view prefix)
@ -322,11 +326,6 @@ MultiCommand::MultiCommand(const Commands & commands_)
.optional = true,
.handler = {[=](std::string s) {
assert(!command);
if (auto prefix = needsCompletion(s)) {
for (auto & [name, command] : commands)
if (hasPrefix(name, *prefix))
completions->add(name);
}
auto i = commands.find(s);
if (i == commands.end()) {
std::set<std::string> commandNames;
@ -337,6 +336,11 @@ MultiCommand::MultiCommand(const Commands & commands_)
}
command = {s, i->second()};
command->second->parent = this;
}},
.completer = {[&](size_t, std::string_view prefix) {
for (auto & [name, command] : commands)
if (hasPrefix(name, prefix))
completions->add(name);
}}
});

68
src/libutil/chunked-vector.hh Normal file
View file

@ -0,0 +1,68 @@
#pragma once
#include <cstdint>
#include <cstdlib>
#include <vector>
#include <limits>
namespace nix {
/* Provides an indexable container like vector<> with memory overhead
guarantees like list<> by allocating storage in chunks of ChunkSize
elements instead of using a contiguous memory allocation like vector<>
does. Not using a single vector that is resized reduces memory overhead
on large data sets by on average (growth factor)/2, mostly
eliminates copies within the vector during resizing, and provides stable
references to its elements. */
template<typename T, size_t ChunkSize>
class ChunkedVector {
private:
uint32_t size_ = 0;
std::vector<std::vector<T>> chunks;
/* keep this out of the ::add hot path */
[[gnu::noinline]]
auto & addChunk()
{
if (size_ >= std::numeric_limits<uint32_t>::max() - ChunkSize)
abort();
chunks.emplace_back();
chunks.back().reserve(ChunkSize);
return chunks.back();
}
public:
ChunkedVector(uint32_t reserve)
{
chunks.reserve(reserve);
addChunk();
}
uint32_t size() const { return size_; }
std::pair<T &, uint32_t> add(T value)
{
const auto idx = size_++;
auto & chunk = [&] () -> auto & {
if (auto & back = chunks.back(); back.size() < ChunkSize)
return back;
return addChunk();
}();
auto & result = chunk.emplace_back(std::move(value));
return {result, idx};
}
const T & operator[](uint32_t idx) const
{
return chunks[idx / ChunkSize][idx % ChunkSize];
}
template<typename Fn>
void forEach(Fn fn) const
{
for (const auto & c : chunks)
for (const auto & e : c)
fn(e);
}
};
}

6
src/libutil/error.hh
View file

@ -87,11 +87,7 @@ struct ErrPos {
origin = pos.origin;
line = pos.line;
column = pos.column;
// is file symbol null?
if (pos.file.set())
file = pos.file;
else
file = "";
file = pos.file;
return *this;
}

14
src/libutil/experimental-features.cc
View file

@ -58,4 +58,18 @@ std::ostream & operator <<(std::ostream & str, const ExperimentalFeature & featu
return str << showExperimentalFeature(feature);
}
void to_json(nlohmann::json& j, const ExperimentalFeature& feature) {
j = showExperimentalFeature(feature);
}
void from_json(const nlohmann::json& j, ExperimentalFeature& feature) {
const std::string input = j;
const auto parsed = parseExperimentalFeature(input);
if (parsed.has_value())
feature = *parsed;
else
throw Error("Unknown experimental feature '%s' in JSON input", input);
}
}

7
src/libutil/experimental-features.hh
View file

@ -51,4 +51,11 @@ public:
MissingExperimentalFeature(ExperimentalFeature);
};
/**
* Semi-magic conversion to and from json.
* See the nlohmann/json readme for more details.
*/
void to_json(nlohmann::json&, const ExperimentalFeature&);
void from_json(const nlohmann::json&, ExperimentalFeature&);
}

12
src/libutil/fmt.hh
View file

@ -2,7 +2,6 @@
#include <boost/format.hpp>
#include <string>
#include <regex>
#include "ansicolor.hh"
@ -155,15 +154,4 @@ inline hintformat hintfmt(std::string plain_string)
return hintfmt("%s", normaltxt(plain_string));
}
/* Highlight all the given matches in the given string `s` by wrapping
them between `prefix` and `postfix`.
If some matches overlap, then their union will be wrapped rather
than the individual matches. */
std::string hiliteMatches(
std::string_view s,
std::vector<std::smatch> matches,
std::string_view prefix,
std::string_view postfix);
}

4
src/libutil/fmt.cc → src/libutil/hilite.cc
View file

@ -1,6 +1,4 @@
#include "fmt.hh"
#include <regex>
#include "hilite.hh"
namespace nix {

20
src/libutil/hilite.hh Normal file
View file

@ -0,0 +1,20 @@
#pragma once
#include <regex>
#include <vector>
#include <string>
namespace nix {
/* Highlight all the given matches in the given string `s` by wrapping
them between `prefix` and `postfix`.
If some matches overlap, then their union will be wrapped rather
than the individual matches. */
std::string hiliteMatches(
std::string_view s,
std::vector<std::smatch> matches,
std::string_view prefix,
std::string_view postfix);
}

43
src/libutil/ref.hh
View file

@ -99,47 +99,4 @@ make_ref(Args&&... args)
return ref<T>(p);
}
/* A non-nullable pointer.
This is similar to a C++ "& reference", but mutable.
This is similar to ref<T> but backed by a regular pointer instead of a smart pointer.
*/
template<typename T>
class ptr {
private:
T * p;
public:
ptr<T>(const ptr<T> & r)
: p(r.p)
{ }
explicit ptr<T>(T * p)
: p(p)
{
if (!p)
throw std::invalid_argument("null pointer cast to ptr");
}
T* operator ->() const
{
return &*p;
}
T& operator *() const
{
return *p;
}
bool operator == (const ptr<T> & other) const
{
return p == other.p;
}
bool operator != (const ptr<T> & other) const
{
return p != other.p;
}
};
}

54
src/libutil/tests/chunked-vector.cc Normal file
View file

@ -0,0 +1,54 @@
#include "chunked-vector.hh"
#include <gtest/gtest.h>
namespace nix {
TEST(ChunkedVector, InitEmpty) {
auto v = ChunkedVector<int, 2>(100);
ASSERT_EQ(v.size(), 0);
}
TEST(ChunkedVector, GrowsCorrectly) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
v.add(i);
ASSERT_EQ(v.size(), i);
}
}
TEST(ChunkedVector, AddAndGet) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
auto [i2, idx] = v.add(i);
auto & i3 = v[idx];
ASSERT_EQ(i, i2);
ASSERT_EQ(&i2, &i3);
}
}
TEST(ChunkedVector, ForEach) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
v.add(i);
}
int count = 0;
v.forEach([&count](int elt) {
count++;
});
ASSERT_EQ(count, v.size());
}
TEST(ChunkedVector, OverflowOK) {
// Similar to the AddAndGet, but intentionnally use a small
// initial ChunkedVector to force it to overflow
auto v = ChunkedVector<int, 2>(2);
for (auto i = 1; i < 20; i++) {
auto [i2, idx] = v.add(i);
auto & i3 = v[idx];
ASSERT_EQ(i, i2);
ASSERT_EQ(&i2, &i3);
}
}
}

4
src/libutil/tests/fmt.cc → src/libutil/tests/hilite.cc
View file

@ -1,9 +1,7 @@
#include "fmt.hh"
#include "hilite.hh"
#include <gtest/gtest.h>
#include <regex>
namespace nix {
/* ----------- tests for fmt.hh -------------------------------------------------*/

1
src/libutil/types.hh
View file

@ -5,6 +5,7 @@
#include <list>
#include <set>
#include <string>
#include <limits>
#include <map>
#include <variant>
#include <vector>

24
src/libutil/util.cc
View file

@ -198,6 +198,17 @@ std::string_view baseNameOf(std::string_view path)
}
std::string expandTilde(std::string_view path)
{
// TODO: expand ~user ?
auto tilde = path.substr(0, 2);
if (tilde == "~/" || tilde == "~")
return getHome() + std::string(path.substr(1));
else
return std::string(path);
}
bool isInDir(std::string_view path, std::string_view dir)
{
return path.substr(0, 1) == "/"
@ -213,6 +224,15 @@ bool isDirOrInDir(std::string_view path, std::string_view dir)
}
struct stat stat(const Path & path)
{
struct stat st;
if (stat(path.c_str(), &st))
throw SysError("getting status of '%1%'", path);
return st;
}
struct stat lstat(const Path & path)
{
struct stat st;
@ -1062,7 +1082,7 @@ std::string runProgram(Path program, bool searchPath, const Strings & args,
auto res = runProgram(RunOptions {.program = program, .searchPath = searchPath, .args = args, .input = input});
if (!statusOk(res.first))
throw ExecError(res.first, fmt("program '%1%' %2%", program, statusToString(res.first)));
throw ExecError(res.first, "program '%1%' %2%", program, statusToString(res.first));
return res.second;
}
@ -1190,7 +1210,7 @@ void runProgram2(const RunOptions & options)
if (source) promise.get_future().get();
if (status)
throw ExecError(status, fmt("program '%1%' %2%", options.program, statusToString(status)));
throw ExecError(status, "program '%1%' %2%", options.program, statusToString(status));
}

4
src/libutil/util.hh
View file

@ -68,6 +68,9 @@ Path dirOf(const PathView path);
following the final `/' (trailing slashes are removed). */
std::string_view baseNameOf(std::string_view path);
/* Perform tilde expansion on a path. */
std::string expandTilde(std::string_view path);
/* Check whether 'path' is a descendant of 'dir'. Both paths must be
canonicalized. */
bool isInDir(std::string_view path, std::string_view dir);
@ -77,6 +80,7 @@ bool isInDir(std::string_view path, std::string_view dir);
bool isDirOrInDir(std::string_view path, std::string_view dir);
/* Get status of `path'. */
struct stat stat(const Path & path);
struct stat lstat(const Path & path);
/* Return true iff the given path exists. */

2
src/nix-env/nix-env.cc
View file

@ -1241,7 +1241,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
Attr & a(*attrs.find(i.name));
if(a.value->type() != nString) continue;
XMLAttrs attrs3;
attrs3["type"] = i.name;
attrs3["type"] = globals.state->symbols[i.name];
attrs3["value"] = a.value->string.s;
xml.writeEmptyElement("string", attrs3);
}

6
src/nix-env/user-env.cc
View file

@ -106,7 +106,7 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
the store; we need it for future modifications of the
environment. */
std::ostringstream str;
manifest.print(str, true);
manifest.print(state.symbols, str, true);
auto manifestFile = state.store->addTextToStore("env-manifest.nix",
str.str(), references);
@ -134,9 +134,9 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
state.forceValue(topLevel, [&]() { return topLevel.determinePos(noPos); });
PathSet context;
Attr & aDrvPath(*topLevel.attrs->find(state.sDrvPath));
auto topLevelDrv = state.coerceToStorePath(*aDrvPath.pos, *aDrvPath.value, context);
auto topLevelDrv = state.coerceToStorePath(aDrvPath.pos, *aDrvPath.value, context);
Attr & aOutPath(*topLevel.attrs->find(state.sOutPath));
auto topLevelOut = state.coerceToStorePath(*aOutPath.pos, *aOutPath.value, context);
auto topLevelOut = state.coerceToStorePath(aOutPath.pos, *aOutPath.value, context);
/* Realise the resulting store expression. */
debug("building user environment");

6
src/nix-instantiate/nix-instantiate.cc
View file

@ -31,7 +31,8 @@ void processExpr(EvalState & state, const Strings & attrPaths,
bool evalOnly, OutputKind output, bool location, Expr * e)
{
if (parseOnly) {
std::cout << format("%1%\n") % *e;
e->show(state.symbols, std::cout);
std::cout << "\n";
return;
}
@ -55,7 +56,8 @@ void processExpr(EvalState & state, const Strings & attrPaths,
printValueAsJSON(state, strict, vRes, v.determinePos(noPos), std::cout, context);
else {
if (strict) state.forceValueDeep(vRes);
std::cout << vRes << std::endl;
vRes.print(state.symbols, std::cout);
std::cout << std::endl;
}
} else {
DrvInfos drvs;

14
src/nix/app.cc
View file

@ -35,7 +35,7 @@ struct InstallableDerivedPath : Installable
/**
* Return the rewrites that are needed to resolve a string whose context is
* included in `dependencies`
* included in `dependencies`.
*/
StringPairs resolveRewrites(Store & store, const BuiltPaths dependencies)
{
@ -51,7 +51,7 @@ StringPairs resolveRewrites(Store & store, const BuiltPaths dependencies)
}
/**
* Resolve the given string assuming the given context
* Resolve the given string assuming the given context.
*/
std::string resolveString(Store & store, const std::string & toResolve, const BuiltPaths dependencies)
{
@ -61,14 +61,18 @@ std::string resolveString(Store & store, const std::string & toResolve, const Bu
UnresolvedApp Installable::toApp(EvalState & state)
{
auto [cursor, attrPath] = getCursor(state);
auto cursor = getCursor(state);
auto attrPath = cursor->getAttrPath();
auto type = cursor->getAttr("type")->getString();
std::string expected = !attrPath.empty() && state.symbols[attrPath[0]] == "apps" ? "app" : "derivation";
if (type != expected)
throw Error("attribute '%s' should have type '%s'", cursor->getAttrPathStr(), expected);
if (type == "app") {
auto [program, context] = cursor->getAttr("program")->getStringWithContext();
std::vector<StorePathWithOutputs> context2;
for (auto & [path, name] : context)
context2.push_back({path, {name}});
@ -101,7 +105,7 @@ UnresolvedApp Installable::toApp(EvalState & state)
}
else
throw Error("attribute '%s' has unsupported type '%s'", attrPath, type);
throw Error("attribute '%s' has unsupported type '%s'", cursor->getAttrPathStr(), type);
}
// FIXME: move to libcmd

24
src/nix/build.cc
View file

@ -4,6 +4,7 @@
#include "shared.hh"
#include "store-api.hh"
#include "local-fs-store.hh"
#include "progress-bar.hh"
#include <nlohmann/json.hpp>
@ -12,6 +13,7 @@ using namespace nix;
struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
{
Path outLink = "result";
bool printOutputPaths = false;
BuildMode buildMode = bmNormal;
CmdBuild()
@ -31,6 +33,12 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
.handler = {&outLink, Path("")},
});
addFlag({
.longName = "print-out-paths",
.description = "Print the resulting output paths",
.handler = {&printOutputPaths, true},
});
addFlag({
.longName = "rebuild",
.description = "Rebuild an already built package and compare the result to the existing store paths.",
@ -93,6 +101,22 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
}, buildable.raw());
}
if (printOutputPaths) {
stopProgressBar();
for (auto & buildable : buildables) {
std::visit(overloaded {
[&](const BuiltPath::Opaque & bo) {
std::cout << store->printStorePath(bo.path) << std::endl;
},
[&](const BuiltPath::Built & bfd) {
for (auto & output : bfd.outputs) {
std::cout << store->printStorePath(output.second) << std::endl;
}
},
}, buildable.raw());
}
}
updateProfile(buildables);
}
};

7
src/nix/build.md
View file

@ -25,6 +25,13 @@ R""(
lrwxrwxrwx 1 … result-1 -> /nix/store/rkfrm0z6x6jmi7d3gsmma4j53h15mg33-cowsay-3.03+dfsg2
```
* Build GNU Hello and print the resulting store path.
```console
# nix build nixpkgs#hello --print-out-paths
/nix/store/v5sv61sszx301i0x6xysaqzla09nksnd-hello-2.10
```
* Build a specific output:
```console

10
src/nix/bundle.cc
View file

@ -97,21 +97,23 @@ struct CmdBundle : InstallableCommand
throw Error("the bundler '%s' does not produce a derivation", bundler.what());
PathSet context2;
auto drvPath = evalState->coerceToStorePath(*attr1->pos, *attr1->value, context2);
auto drvPath = evalState->coerceToStorePath(attr1->pos, *attr1->value, context2);
auto attr2 = vRes->attrs->get(evalState->sOutPath);
if (!attr2)
throw Error("the bundler '%s' does not produce a derivation", bundler.what());
auto outPath = evalState->coerceToStorePath(*attr2->pos, *attr2->value, context2);
auto outPath = evalState->coerceToStorePath(attr2->pos, *attr2->value, context2);
store->buildPaths({ DerivedPath::Built { drvPath } });
auto outPathS = store->printStorePath(outPath);
if (!outLink) {
auto &attr = vRes->attrs->need(evalState->sName);
outLink = evalState->forceStringNoCtx(*attr.value,*attr.pos);
auto * attr = vRes->attrs->get(evalState->sName);
if (!attr)
throw Error("attribute 'name' missing");
outLink = evalState->forceStringNoCtx(*attr->value, attr->pos);
}
// TODO: will crash if not a localFSStore?

18
src/nix/edit.cc
View file

@ -28,19 +28,19 @@ struct CmdEdit : InstallableCommand
{
auto state = getEvalState();
auto [v, pos] = installable->toValue(*state);
const auto [file, line] = [&] {
auto [v, pos] = installable->toValue(*state);
try {
pos = findPackageFilename(*state, *v, installable->what());
} catch (NoPositionInfo &) {
}
if (pos == noPos)
throw Error("cannot find position information for '%s", installable->what());
try {
return findPackageFilename(*state, *v, installable->what());
} catch (NoPositionInfo &) {
throw Error("cannot find position information for '%s", installable->what());
}
}();
stopProgressBar();
auto args = editorFor(pos);
auto args = editorFor(file, line);
restoreProcessContext();

22
src/nix/eval.cc
View file

@ -77,9 +77,9 @@ struct CmdEval : MixJSON, InstallableCommand
if (pathExists(*writeTo))
throw Error("path '%s' already exists", *writeTo);
std::function<void(Value & v, const Pos & pos, const Path & path)> recurse;
std::function<void(Value & v, const PosIdx pos, const Path & path)> recurse;
recurse = [&](Value & v, const Pos & pos, const Path & path)
recurse = [&](Value & v, const PosIdx pos, const Path & path)
{
state->forceValue(v, pos);
if (v.type() == nString)
@ -88,18 +88,22 @@ struct CmdEval : MixJSON, InstallableCommand
else if (v.type() == nAttrs) {
if (mkdir(path.c_str(), 0777) == -1)
throw SysError("creating directory '%s'", path);
for (auto & attr : *v.attrs)
for (auto & attr : *v.attrs) {
std::string_view name = state->symbols[attr.name];
try {
if (attr.name == "." || attr.name == "..")
throw Error("invalid file name '%s'", attr.name);
recurse(*attr.value, *attr.pos, path + "/" + std::string(attr.name));
if (name == "." || name == "..")
throw Error("invalid file name '%s'", name);
recurse(*attr.value, attr.pos, concatStrings(path, "/", name));
} catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("while evaluating the attribute '%s'", attr.name));
e.addTrace(
state->positions[attr.pos],
hintfmt("while evaluating the attribute '%s'", name));
throw;
}
}
}
else
throw TypeError("value at '%s' is not a string or an attribute set", pos);
throw TypeError("value at '%s' is not a string or an attribute set", state->positions[pos]);
};
recurse(*v, pos, *writeTo);
@ -117,7 +121,7 @@ struct CmdEval : MixJSON, InstallableCommand
else {
state->forceValueDeep(*v);
logger->cout("%s", *v);
logger->cout("%s", printValue(*state, *v));
}
}
};

253
src/nix/flake.cc
View file

@ -123,7 +123,7 @@ struct CmdFlakeLock : FlakeCommand
};
static void enumerateOutputs(EvalState & state, Value & vFlake,
std::function<void(const std::string & name, Value & vProvide, const Pos & pos)> callback)
std::function<void(const std::string & name, Value & vProvide, const PosIdx pos)> callback)
{
auto pos = vFlake.determinePos(noPos);
state.forceAttrs(vFlake, pos);
@ -139,11 +139,11 @@ static void enumerateOutputs(EvalState & state, Value & vFlake,
else. This way we can disable IFD for hydraJobs and then enable
it for other outputs. */
if (auto attr = aOutputs->value->attrs->get(sHydraJobs))
callback(attr->name, *attr->value, *attr->pos);
callback(state.symbols[attr->name], *attr->value, attr->pos);
for (auto & attr : *aOutputs->value->attrs) {
if (attr.name != sHydraJobs)
callback(attr.name, *attr.value, *attr.pos);
callback(state.symbols[attr.name], *attr.value, attr.pos);
}
}
@ -254,14 +254,6 @@ struct CmdFlakeInfo : CmdFlakeMetadata
}
};
static bool argHasName(std::string_view arg, std::string_view expected)
{
return
arg == expected
|| arg == "_"
|| (hasPrefix(arg, "_") && arg.substr(1) == expected);
}
struct CmdFlakeCheck : FlakeCommand
{
bool build = true;
@ -315,13 +307,25 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: rewrite to use EvalCache.
auto checkSystemName = [&](const std::string & system, const Pos & pos) {
// FIXME: what's the format of "system"?
if (system.find('-') == std::string::npos)
reportError(Error("'%s' is not a valid system type, at %s", system, pos));
auto resolve = [&] (PosIdx p) {
return state->positions[p];
};
auto checkDerivation = [&](const std::string & attrPath, Value & v, const Pos & pos) -> std::optional<StorePath> {
auto argHasName = [&] (Symbol arg, std::string_view expected) {
std::string_view name = state->symbols[arg];
return
name == expected
|| name == "_"
|| (hasPrefix(name, "_") && name.substr(1) == expected);
};
auto checkSystemName = [&](const std::string & system, const PosIdx pos) {
// FIXME: what's the format of "system"?
if (system.find('-') == std::string::npos)
reportError(Error("'%s' is not a valid system type, at %s", system, resolve(pos)));
};
auto checkDerivation = [&](const std::string & attrPath, Value & v, const PosIdx pos) -> std::optional<StorePath> {
try {
auto drvInfo = getDerivation(*state, v, false);
if (!drvInfo)
@ -329,7 +333,7 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: check meta attributes
return drvInfo->queryDrvPath();
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the derivation '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the derivation '%s'", attrPath));
reportError(e);
}
return std::nullopt;
@ -337,7 +341,7 @@ struct CmdFlakeCheck : FlakeCommand
std::vector<DerivedPath> drvPaths;
auto checkApp = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkApp = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
#if 0
// FIXME
@ -348,12 +352,12 @@ struct CmdFlakeCheck : FlakeCommand
}
#endif
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the app definition '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the app definition '%s'", attrPath));
reportError(e);
}
};
auto checkOverlay = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkOverlay = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
state->forceValue(v, pos);
if (!v.isLambda()
@ -368,12 +372,12 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: if we have a 'nixpkgs' input, use it to
// evaluate the overlay.
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the overlay '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the overlay '%s'", attrPath));
reportError(e);
}
};
auto checkModule = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkModule = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
state->forceValue(v, pos);
if (v.isLambda()) {
@ -382,9 +386,11 @@ struct CmdFlakeCheck : FlakeCommand
} else if (v.type() == nAttrs) {
for (auto & attr : *v.attrs)
try {
state->forceValue(*attr.value, *attr.pos);
state->forceValue(*attr.value, attr.pos);
} catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("while evaluating the option '%s'", attr.name));
e.addTrace(
state->positions[attr.pos],
hintfmt("while evaluating the option '%s'", state->symbols[attr.name]));
throw;
}
} else
@ -392,14 +398,14 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: if we have a 'nixpkgs' input, use it to
// check the module.
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the NixOS module '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the NixOS module '%s'", attrPath));
reportError(e);
}
};
std::function<void(const std::string & attrPath, Value & v, const Pos & pos)> checkHydraJobs;
std::function<void(const std::string & attrPath, Value & v, const PosIdx pos)> checkHydraJobs;
checkHydraJobs = [&](const std::string & attrPath, Value & v, const Pos & pos) {
checkHydraJobs = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
state->forceAttrs(v, pos);
@ -407,23 +413,23 @@ struct CmdFlakeCheck : FlakeCommand
throw Error("jobset should not be a derivation at top-level");
for (auto & attr : *v.attrs) {
state->forceAttrs(*attr.value, *attr.pos);
auto attrPath2 = attrPath + "." + (std::string) attr.name;
state->forceAttrs(*attr.value, attr.pos);
auto attrPath2 = concatStrings(attrPath, ".", state->symbols[attr.name]);
if (state->isDerivation(*attr.value)) {
Activity act(*logger, lvlChatty, actUnknown,
fmt("checking Hydra job '%s'", attrPath2));
checkDerivation(attrPath2, *attr.value, *attr.pos);
checkDerivation(attrPath2, *attr.value, attr.pos);
} else
checkHydraJobs(attrPath2, *attr.value, *attr.pos);
checkHydraJobs(attrPath2, *attr.value, attr.pos);
}
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the Hydra jobset '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the Hydra jobset '%s'", attrPath));
reportError(e);
}
};
auto checkNixOSConfiguration = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkNixOSConfiguration = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
Activity act(*logger, lvlChatty, actUnknown,
fmt("checking NixOS configuration '%s'", attrPath));
@ -433,12 +439,12 @@ struct CmdFlakeCheck : FlakeCommand
if (!state->isDerivation(*vToplevel))
throw Error("attribute 'config.system.build.toplevel' is not a derivation");
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the NixOS configuration '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the NixOS configuration '%s'", attrPath));
reportError(e);
}
};
auto checkTemplate = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkTemplate = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
Activity act(*logger, lvlChatty, actUnknown,
fmt("checking template '%s'", attrPath));
@ -448,7 +454,7 @@ struct CmdFlakeCheck : FlakeCommand
if (auto attr = v.attrs->get(state->symbols.create("path"))) {
if (attr->name == state->symbols.create("path")) {
PathSet context;
auto path = state->coerceToPath(*attr->pos, *attr->value, context);
auto path = state->coerceToPath(attr->pos, *attr->value, context);
if (!store->isInStore(path))
throw Error("template '%s' has a bad 'path' attribute");
// TODO: recursively check the flake in 'path'.
@ -457,29 +463,29 @@ struct CmdFlakeCheck : FlakeCommand
throw Error("template '%s' lacks attribute 'path'", attrPath);
if (auto attr = v.attrs->get(state->symbols.create("description")))
state->forceStringNoCtx(*attr->value, *attr->pos);
state->forceStringNoCtx(*attr->value, attr->pos);
else
throw Error("template '%s' lacks attribute 'description'", attrPath);
for (auto & attr : *v.attrs) {
std::string name(attr.name);
std::string_view name(state->symbols[attr.name]);
if (name != "path" && name != "description" && name != "welcomeText")
throw Error("template '%s' has unsupported attribute '%s'", attrPath, name);
}
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the template '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the template '%s'", attrPath));
reportError(e);
}
};
auto checkBundler = [&](const std::string & attrPath, Value & v, const Pos & pos) {
auto checkBundler = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try {
state->forceValue(v, pos);
if (!v.isLambda())
throw Error("bundler must be a function");
// TODO: check types of inputs/outputs?
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the template '%s'", attrPath));
e.addTrace(resolve(pos), hintfmt("while checking the template '%s'", attrPath));
reportError(e);
}
};
@ -492,7 +498,7 @@ struct CmdFlakeCheck : FlakeCommand
enumerateOutputs(*state,
*vFlake,
[&](const std::string & name, Value & vOutput, const Pos & pos) {
[&](const std::string & name, Value & vOutput, const PosIdx pos) {
Activity act(*logger, lvlChatty, actUnknown,
fmt("checking flake output '%s'", name));
@ -516,66 +522,82 @@ struct CmdFlakeCheck : FlakeCommand
if (name == "checks") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
state->forceAttrs(*attr.value, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) {
auto drvPath = checkDerivation(
fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos);
if (drvPath && (std::string) attr.name == settings.thisSystem.get())
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos);
if (drvPath && attr_name == settings.thisSystem.get())
drvPaths.push_back(DerivedPath::Built{*drvPath});
}
}
}
else if (name == "formatter") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
checkApp(
fmt("%s.%s", name, attr_name),
*attr.value, attr.pos);
}
}
else if (name == "packages" || name == "devShells") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
state->forceAttrs(*attr.value, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs)
checkDerivation(
fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos);
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos);
}
}
else if (name == "apps") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
state->forceAttrs(*attr.value, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs)
checkApp(
fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos);
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos);
}
}
else if (name == "defaultPackage" || name == "devShell") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
checkDerivation(
fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
fmt("%s.%s", name, attr_name),
*attr.value, attr.pos);
}
}
else if (name == "defaultApp") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
checkApp(
fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
fmt("%s.%s", name, attr_name),
*attr.value, attr.pos);
}
}
else if (name == "legacyPackages") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
checkSystemName(state->symbols[attr.name], attr.pos);
// FIXME: do getDerivations?
}
}
@ -586,8 +608,8 @@ struct CmdFlakeCheck : FlakeCommand
else if (name == "overlays") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs)
checkOverlay(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
checkOverlay(fmt("%s.%s", name, state->symbols[attr.name]),
*attr.value, attr.pos);
}
else if (name == "nixosModule")
@ -596,15 +618,15 @@ struct CmdFlakeCheck : FlakeCommand
else if (name == "nixosModules") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs)
checkModule(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
checkModule(fmt("%s.%s", name, state->symbols[attr.name]),
*attr.value, attr.pos);
}
else if (name == "nixosConfigurations") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs)
checkNixOSConfiguration(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
checkNixOSConfiguration(fmt("%s.%s", name, state->symbols[attr.name]),
*attr.value, attr.pos);
}
else if (name == "hydraJobs")
@ -616,29 +638,31 @@ struct CmdFlakeCheck : FlakeCommand
else if (name == "templates") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs)
checkTemplate(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
checkTemplate(fmt("%s.%s", name, state->symbols[attr.name]),
*attr.value, attr.pos);
}
else if (name == "defaultBundler") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
checkBundler(
fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos);
fmt("%s.%s", name, attr_name),
*attr.value, attr.pos);
}
}
else if (name == "bundlers") {
state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos);
state->forceAttrs(*attr.value, *attr.pos);
const auto & attr_name = state->symbols[attr.name];
checkSystemName(attr_name, attr.pos);
state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) {
checkBundler(
fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos);
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos);
}
}
}
@ -647,7 +671,7 @@ struct CmdFlakeCheck : FlakeCommand
warn("unknown flake output '%s'", name);
} catch (Error & e) {
e.addTrace(pos, hintfmt("while checking flake output '%s'", name));
e.addTrace(resolve(pos), hintfmt("while checking flake output '%s'", name));
reportError(e);
}
});
@ -705,7 +729,7 @@ struct CmdFlakeInitCommon : virtual Args, EvalCommand
defaultTemplateAttrPathsPrefixes,
lockFlags);
auto [cursor, attrPath] = installable.getCursor(*evalState);
auto cursor = installable.getCursor(*evalState);
auto templateDirAttr = cursor->getAttr("path");
auto templateDir = templateDirAttr->getString();
@ -962,8 +986,11 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
{
auto j = nlohmann::json::object();
auto attrPathS = state->symbols.resolve(attrPath);
Activity act(*logger, lvlInfo, actUnknown,
fmt("evaluating '%s'", concatStringsSep(".", attrPath)));
fmt("evaluating '%s'", concatStringsSep(".", attrPathS)));
try {
auto recurse = [&]()
{
@ -971,14 +998,15 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
logger->cout("%s", headerPrefix);
auto attrs = visitor.getAttrs();
for (const auto & [i, attr] : enumerate(attrs)) {
const auto & attrName = state->symbols[attr];
bool last = i + 1 == attrs.size();
auto visitor2 = visitor.getAttr(attr);
auto visitor2 = visitor.getAttr(attrName);
auto attrPath2(attrPath);
attrPath2.push_back(attr);
auto j2 = visit(*visitor2, attrPath2,
fmt(ANSI_GREEN "%s%s" ANSI_NORMAL ANSI_BOLD "%s" ANSI_NORMAL, nextPrefix, last ? treeLast : treeConn, attr),
fmt(ANSI_GREEN "%s%s" ANSI_NORMAL ANSI_BOLD "%s" ANSI_NORMAL, nextPrefix, last ? treeLast : treeConn, attrName),
nextPrefix + (last ? treeNull : treeLine));
if (json) j.emplace(attr, std::move(j2));
if (json) j.emplace(attrName, std::move(j2));
}
};
@ -998,10 +1026,10 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
} else {
logger->cout("%s: %s '%s'",
headerPrefix,
attrPath.size() == 2 && attrPath[0] == "devShell" ? "development environment" :
attrPath.size() >= 2 && attrPath[0] == "devShells" ? "development environment" :
attrPath.size() == 3 && attrPath[0] == "checks" ? "derivation" :
attrPath.size() >= 1 && attrPath[0] == "hydraJobs" ? "derivation" :
attrPath.size() == 2 && attrPathS[0] == "devShell" ? "development environment" :
attrPath.size() >= 2 && attrPathS[0] == "devShells" ? "development environment" :
attrPath.size() == 3 && attrPathS[0] == "checks" ? "derivation" :
attrPath.size() >= 1 && attrPathS[0] == "hydraJobs" ? "derivation" :
"package",
name);
}
@ -1009,26 +1037,27 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
if (attrPath.size() == 0
|| (attrPath.size() == 1 && (
attrPath[0] == "defaultPackage"
|| attrPath[0] == "devShell"
|| attrPath[0] == "nixosConfigurations"
|| attrPath[0] == "nixosModules"
|| attrPath[0] == "defaultApp"
|| attrPath[0] == "templates"
|| attrPath[0] == "overlays"))
attrPathS[0] == "defaultPackage"
|| attrPathS[0] == "devShell"
|| attrPathS[0] == "formatter"
|| attrPathS[0] == "nixosConfigurations"
|| attrPathS[0] == "nixosModules"
|| attrPathS[0] == "defaultApp"
|| attrPathS[0] == "templates"
|| attrPathS[0] == "overlays"))
|| ((attrPath.size() == 1 || attrPath.size() == 2)
&& (attrPath[0] == "checks"
|| attrPath[0] == "packages"
|| attrPath[0] == "devShells"
|| attrPath[0] == "apps"))
&& (attrPathS[0] == "checks"
|| attrPathS[0] == "packages"
|| attrPathS[0] == "devShells"
|| attrPathS[0] == "apps"))
)
{
recurse();
}
else if (
(attrPath.size() == 2 && (attrPath[0] == "defaultPackage" || attrPath[0] == "devShell"))
|| (attrPath.size() == 3 && (attrPath[0] == "checks" || attrPath[0] == "packages" || attrPath[0] == "devShells"))
(attrPath.size() == 2 && (attrPathS[0] == "defaultPackage" || attrPathS[0] == "devShell" || attrPathS[0] == "formatter"))
|| (attrPath.size() == 3 && (attrPathS[0] == "checks" || attrPathS[0] == "packages" || attrPathS[0] == "devShells"))
)
{
if (visitor.isDerivation())
@ -1037,14 +1066,14 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
throw Error("expected a derivation");
}
else if (attrPath.size() > 0 && attrPath[0] == "hydraJobs") {
else if (attrPath.size() > 0 && attrPathS[0] == "hydraJobs") {
if (visitor.isDerivation())
showDerivation();
else
recurse();
}
else if (attrPath.size() > 0 && attrPath[0] == "legacyPackages") {
else if (attrPath.size() > 0 && attrPathS[0] == "legacyPackages") {
if (attrPath.size() == 1)
recurse();
else if (!showLegacy)
@ -1059,8 +1088,8 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
}
else if (
(attrPath.size() == 2 && attrPath[0] == "defaultApp") ||
(attrPath.size() == 3 && attrPath[0] == "apps"))
(attrPath.size() == 2 && attrPathS[0] == "defaultApp") ||
(attrPath.size() == 3 && attrPathS[0] == "apps"))
{
auto aType = visitor.maybeGetAttr("type");
if (!aType || aType->getString() != "app")
@ -1073,8 +1102,8 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
}
else if (
(attrPath.size() == 1 && attrPath[0] == "defaultTemplate") ||
(attrPath.size() == 2 && attrPath[0] == "templates"))
(attrPath.size() == 1 && attrPathS[0] == "defaultTemplate") ||
(attrPath.size() == 2 && attrPathS[0] == "templates"))
{
auto description = visitor.getAttr("description")->getString();
if (json) {
@ -1087,11 +1116,11 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
else {
auto [type, description] =
(attrPath.size() == 1 && attrPath[0] == "overlay")
|| (attrPath.size() == 2 && attrPath[0] == "overlays") ? std::make_pair("nixpkgs-overlay", "Nixpkgs overlay") :
attrPath.size() == 2 && attrPath[0] == "nixosConfigurations" ? std::make_pair("nixos-configuration", "NixOS configuration") :
(attrPath.size() == 1 && attrPath[0] == "nixosModule")
|| (attrPath.size() == 2 && attrPath[0] == "nixosModules") ? std::make_pair("nixos-module", "NixOS module") :
(attrPath.size() == 1 && attrPathS[0] == "overlay")
|| (attrPath.size() == 2 && attrPathS[0] == "overlays") ? std::make_pair("nixpkgs-overlay", "Nixpkgs overlay") :
attrPath.size() == 2 && attrPathS[0] == "nixosConfigurations" ? std::make_pair("nixos-configuration", "NixOS configuration") :
(attrPath.size() == 1 && attrPathS[0] == "nixosModule")
|| (attrPath.size() == 2 && attrPathS[0] == "nixosModules") ? std::make_pair("nixos-module", "NixOS module") :
std::make_pair("unknown", "unknown");
if (json) {
j.emplace("type", type);
@ -1100,7 +1129,7 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
}
}
} catch (EvalError & e) {
if (!(attrPath.size() > 0 && attrPath[0] == "legacyPackages"))
if (!(attrPath.size() > 0 && attrPathS[0] == "legacyPackages"))
throw;
}

4
src/nix/flake.md
View file

@ -177,8 +177,8 @@ Currently the `type` attribute can be one of the following:
attribute `url`.
In URL form, the schema must be `http://`, `https://` or `file://`
URLs and the extension must be `.zip`, `.tar`, `.tar.gz`, `.tar.xz`,
`.tar.bz2` or `.tar.zst`.
URLs and the extension must be `.zip`, `.tar`, `.tgz`, `.tar.gz`,
`.tar.xz`, `.tar.bz2` or `.tar.zst`.
* `github`: A more efficient way to fetch repositories from
GitHub. The following attributes are required:

54
src/nix/fmt.cc Normal file
View file

@ -0,0 +1,54 @@
#include "command.hh"
#include "run.hh"
using namespace nix;
struct CmdFmt : SourceExprCommand {
std::vector<std::string> args;
CmdFmt() { expectArgs({.label = "args", .handler = {&args}}); }
std::string description() override {
return "reformat your code in the standard style";
}
std::string doc() override {
return
#include "fmt.md"
;
}
Category category() override { return catSecondary; }
Strings getDefaultFlakeAttrPaths() override {
return Strings{"formatter." + settings.thisSystem.get()};
}
Strings getDefaultFlakeAttrPathPrefixes() override { return Strings{}; }
void run(ref<Store> store) override
{
auto evalState = getEvalState();
auto evalStore = getEvalStore();
auto installable = parseInstallable(store, ".");
auto app = installable->toApp(*evalState).resolve(evalStore, store);
Strings programArgs{app.program};
// Propagate arguments from the CLI
if (args.empty()) {
// Format the current flake out of the box
programArgs.push_back(".");
} else {
// User wants more power, let them decide which paths to include/exclude
for (auto &i : args) {
programArgs.push_back(i);
}
}
runProgramInStore(store, app.program, programArgs);
};
};
static auto r2 = registerCommand<CmdFmt>("fmt");

53
src/nix/fmt.md Normal file
View file

@ -0,0 +1,53 @@
R""(
# Examples
With [nixpkgs-fmt](https://github.com/nix-community/nixpkgs-fmt):
```nix
# flake.nix
{
outputs = { nixpkgs, self }: {
formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.nixpkgs-fmt;
};
}
```
- Format the current flake: `$ nix fmt`
- Format a specific folder or file: `$ nix fmt ./folder ./file.nix`
With [nixfmt](https://github.com/serokell/nixfmt):
```nix
# flake.nix
{
outputs = { nixpkgs, self }: {
formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.nixfmt;
};
}
```
- Format specific files: `$ nix fmt ./file1.nix ./file2.nix`
With [Alejandra](https://github.com/kamadorueda/alejandra):
```nix
# flake.nix
{
outputs = { nixpkgs, self }: {
formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.alejandra;
};
}
```
- Format the current flake: `$ nix fmt`
- Format a specific folder or file: `$ nix fmt ./folder ./file.nix`
# Description
`nix fmt` will rewrite all Nix files (\*.nix) to a canonical format
using the formatter specified in your flake.
)""

2
src/nix/main.cc
View file

@ -302,7 +302,7 @@ void mainWrapped(int argc, char * * argv)
b["arity"] = primOp->arity;
b["args"] = primOp->args;
b["doc"] = trim(stripIndentation(primOp->doc));
res[(std::string) builtin.name] = std::move(b);
res[state.symbols[builtin.name]] = std::move(b);
}
std::cout << res.dump() << "\n";
return;

10
src/nix/prefetch.cc
View file

@ -199,11 +199,13 @@ static int main_nix_prefetch_url(int argc, char * * argv)
state->forceAttrs(v, noPos);
/* Extract the URL. */
auto & attr = v.attrs->need(state->symbols.create("urls"));
state->forceList(*attr.value, noPos);
if (attr.value->listSize() < 1)
auto * attr = v.attrs->get(state->symbols.create("urls"));
if (!attr)
throw Error("attribute 'urls' missing");
state->forceList(*attr->value, noPos);
if (attr->value->listSize() < 1)
throw Error("'urls' list is empty");
url = state->forceString(*attr.value->listElems()[0]);
url = state->forceString(*attr->value->listElems()[0]);
/* Extract the hash mode. */
auto attr2 = v.attrs->get(state->symbols.create("outputHashMode"));

22
src/nix/search.cc
View file

@ -9,7 +9,7 @@
#include "shared.hh"
#include "eval-cache.hh"
#include "attr-path.hh"
#include "fmt.hh"
#include "hilite.hh"
#include <regex>
#include <fstream>
@ -77,13 +77,15 @@ struct CmdSearch : InstallableCommand, MixJSON
visit = [&](eval_cache::AttrCursor & cursor, const std::vector<Symbol> & attrPath, bool initialRecurse)
{
auto attrPathS = state->symbols.resolve(attrPath);
Activity act(*logger, lvlInfo, actUnknown,
fmt("evaluating '%s'", concatStringsSep(".", attrPath)));
fmt("evaluating '%s'", concatStringsSep(".", attrPathS)));
try {
auto recurse = [&]()
{
for (const auto & attr : cursor.getAttrs()) {
auto cursor2 = cursor.getAttr(attr);
auto cursor2 = cursor.getAttr(state->symbols[attr]);
auto attrPath2(attrPath);
attrPath2.push_back(attr);
visit(*cursor2, attrPath2, false);
@ -97,7 +99,7 @@ struct CmdSearch : InstallableCommand, MixJSON
auto aDescription = aMeta ? aMeta->maybeGetAttr("description") : nullptr;
auto description = aDescription ? aDescription->getString() : "";
std::replace(description.begin(), description.end(), '\n', ' ');
auto attrPath2 = concatStringsSep(".", attrPath);
auto attrPath2 = concatStringsSep(".", attrPathS);
std::vector<std::smatch> attrPathMatches;
std::vector<std::smatch> descriptionMatches;
@ -146,27 +148,27 @@ struct CmdSearch : InstallableCommand, MixJSON
else if (
attrPath.size() == 0
|| (attrPath[0] == "legacyPackages" && attrPath.size() <= 2)
|| (attrPath[0] == "packages" && attrPath.size() <= 2))
|| (attrPathS[0] == "legacyPackages" && attrPath.size() <= 2)
|| (attrPathS[0] == "packages" && attrPath.size() <= 2))
recurse();
else if (initialRecurse)
recurse();
else if (attrPath[0] == "legacyPackages" && attrPath.size() > 2) {
else if (attrPathS[0] == "legacyPackages" && attrPath.size() > 2) {
auto attr = cursor.maybeGetAttr(state->sRecurseForDerivations);
if (attr && attr->getBool())
recurse();
}
} catch (EvalError & e) {
if (!(attrPath.size() > 0 && attrPath[0] == "legacyPackages"))
if (!(attrPath.size() > 0 && attrPathS[0] == "legacyPackages"))
throw;
}
};
for (auto & [cursor, prefix] : installable->getCursors(*state))
visit(*cursor, parseAttrPath(*state, prefix), true);
for (auto & cursor : installable->getCursors(*state))
visit(*cursor, cursor->getAttrPath(), true);
if (!json && !results)
throw Error("no results for the given search term(s)!");

2
tests/build-remote-content-addressed-floating.sh
View file

@ -2,7 +2,7 @@ source common.sh
file=build-hook-ca-floating.nix
enableFeatures "ca-derivations ca-references"
enableFeatures "ca-derivations"
CONTENT_ADDRESSED=true

8
tests/build-remote.sh
View file

@ -34,6 +34,14 @@ outPath=$(readlink -f $TEST_ROOT/result)
grep 'FOO BAR BAZ' $TEST_ROOT/machine0/$outPath
testPrintOutPath=$(nix build -L -v -f $file --print-out-paths --max-jobs 0 \
--arg busybox $busybox \
--store $TEST_ROOT/machine0 \
--builders "$(join_by '; ' "${builders[@]}")"
)
[[ $testPrintOutPath =~ store.*build-remote ]]
set -o pipefail
# Ensure that input1 was built on store1 due to the required feature.

2
tests/ca/common.sh
View file

@ -1,5 +1,5 @@
source ../common.sh
enableFeatures "ca-derivations ca-references"
enableFeatures "ca-derivations"
restartDaemon

11
tests/ca/selfref-gc.sh Executable file
View file

@ -0,0 +1,11 @@
#!/usr/bin/env bash
source common.sh
requireDaemonNewerThan "2.4pre20210626"
enableFeatures "ca-derivations nix-command flakes"
export NIX_TESTS_CA_BY_DEFAULT=1
cd ..
source ./selfref-gc.sh

2
tests/eval.sh
View file

@ -20,6 +20,8 @@ nix eval --expr 'assert 1 + 2 == 3; true'
[[ $(nix eval attr --json -f "./eval.nix") == '{"foo":"bar"}' ]]
[[ $(nix eval int -f - < "./eval.nix") == 123 ]]
# Check if toFile can be utilized during restricted eval
[[ $(nix eval --restrict-eval --expr 'import (builtins.toFile "source" "42")') == 42 ]]
nix-instantiate --eval -E 'assert 1 + 2 == 3; true'
[[ $(nix-instantiate -A int --eval "./eval.nix") == 123 ]]

29
tests/flakes-run.sh Normal file
View file

@ -0,0 +1,29 @@
source common.sh
clearStore
rm -rf $TEST_HOME/.cache $TEST_HOME/.config $TEST_HOME/.local
cp ./shell-hello.nix ./config.nix $TEST_HOME
cd $TEST_HOME
cat <<EOF > flake.nix
{
outputs = {self}: {
packages.$system.pkgAsPkg = (import ./shell-hello.nix).hello;
packages.$system.appAsApp = self.packages.$system.appAsApp;
apps.$system.pkgAsApp = self.packages.$system.pkgAsPkg;
apps.$system.appAsApp = {
type = "app";
program = "\${(import ./shell-hello.nix).hello}/bin/hello";
};
};
}
EOF
nix run --no-write-lock-file .#appAsApp
nix run --no-write-lock-file .#pkgAsPkg
! nix run --no-write-lock-file .#pkgAsApp || fail "'nix run' shouldn’t accept an 'app' defined under 'packages'"
! nix run --no-write-lock-file .#appAsPkg || fail "elements of 'apps' should be of type 'app'"
clearStore

30
tests/fmt.sh Normal file
View file

@ -0,0 +1,30 @@
source common.sh
set -o pipefail
clearStore
rm -rf $TEST_HOME/.cache $TEST_HOME/.config $TEST_HOME/.local
cp ./simple.nix ./simple.builder.sh ./fmt.simple.sh ./config.nix $TEST_HOME
cd $TEST_HOME
nix fmt --help | grep "Format"
cat << EOF > flake.nix
{
outputs = _: {
formatter.$system =
with import ./config.nix;
mkDerivation {
name = "formatter";
buildCommand = "mkdir -p \$out/bin; cp \${./fmt.simple.sh} \$out/bin/formatter";
};
};
}
EOF
nix fmt ./file ./folder | grep 'Formatting: ./file ./folder'
nix flake check
nix flake show | grep -P "package 'formatter'"
clearStore

1
tests/fmt.simple.sh Executable file
View file

@ -0,0 +1 @@
echo Formatting: "${@}"

3
tests/local.mk
View file

@ -1,5 +1,6 @@
nix_tests = \
flakes.sh \
flakes-run.sh \
ca/gc.sh \
gc.sh \
remote-store.sh \
@ -79,6 +80,7 @@ nix_tests = \
post-hook.sh \
function-trace.sh \
flake-local-settings.sh \
fmt.sh \
eval-store.sh \
why-depends.sh \
import-derivation.sh \
@ -90,6 +92,7 @@ nix_tests = \
plugins.sh \
build.sh \
ca/nix-run.sh \
selfref-gc.sh ca/selfref-gc.sh \
db-migration.sh \
bash-profile.sh \
pass-as-file.sh \

2
tests/nix-profile.sh
View file

@ -3,7 +3,7 @@ source common.sh
clearStore
clearProfiles
enableFeatures "ca-derivations ca-references"
enableFeatures "ca-derivations"
restartDaemon
# Make a flake.

2
tests/plugins/plugintest.cc
View file

@ -13,7 +13,7 @@ MySettings mySettings;
static GlobalConfig::Register rs(&mySettings);
static void prim_anotherNull (EvalState & state, const Pos & pos, Value ** args, Value & v)
static void prim_anotherNull (EvalState & state, const PosIdx pos, Value ** args, Value & v)
{
if (mySettings.settingSet)
v.mkNull();

6
tests/post-hook.sh
View file

@ -9,12 +9,12 @@ echo 'require-sigs = false' >> $NIX_CONF_DIR/nix.conf
restartDaemon
# Build the dependencies and push them to the remote store
# Build the dependencies and push them to the remote store.
nix-build -o $TEST_ROOT/result dependencies.nix --post-build-hook $PWD/push-to-store.sh
clearStore
# Ensure that we the remote store contains both the runtime and buildtime
# closure of what we've just built
# Ensure that the remote store contains both the runtime and build-time
# closure of what we've just built.
nix copy --from "$REMOTE_STORE" --no-require-sigs -f dependencies.nix
nix copy --from "$REMOTE_STORE" --no-require-sigs -f dependencies.nix input1_drv

4
tests/push-to-store.sh
View file

@ -1,6 +1,10 @@
#!/bin/sh
set -x
set -e
[ -n "$OUT_PATHS" ]
[ -n "$DRV_PATH" ]
echo Pushing "$OUT_PATHS" to "$REMOTE_STORE"
printf "%s" "$DRV_PATH" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs

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