mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-25 23:36:16 +02:00
Add a symbol __curPos that expands to the current source location
I.e. an attribute set { file = <string>; line = <int>; column = <int>; }.
This commit is contained in:
parent
90b5e69284
commit
fc33fd86b7
7 changed files with 43 additions and 2 deletions
|
@ -142,6 +142,9 @@ EvalState::EvalState()
|
||||||
, sOutputs(symbols.create("outputs"))
|
, sOutputs(symbols.create("outputs"))
|
||||||
, sOutputName(symbols.create("outputName"))
|
, sOutputName(symbols.create("outputName"))
|
||||||
, sIgnoreNulls(symbols.create("__ignoreNulls"))
|
, sIgnoreNulls(symbols.create("__ignoreNulls"))
|
||||||
|
, sFile(symbols.create("file"))
|
||||||
|
, sLine(symbols.create("line"))
|
||||||
|
, sColumn(symbols.create("column"))
|
||||||
, repair(false)
|
, repair(false)
|
||||||
, baseEnv(allocEnv(128))
|
, baseEnv(allocEnv(128))
|
||||||
, staticBaseEnv(false, 0)
|
, staticBaseEnv(false, 0)
|
||||||
|
@ -1039,6 +1042,16 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void ExprPos::eval(EvalState & state, Env & env, Value & v)
|
||||||
|
{
|
||||||
|
state.mkAttrs(v, 3);
|
||||||
|
mkString(*state.allocAttr(v, state.sFile), pos.file);
|
||||||
|
mkInt(*state.allocAttr(v, state.sLine), pos.line);
|
||||||
|
mkInt(*state.allocAttr(v, state.sColumn), pos.column);
|
||||||
|
v.attrs->sort();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
void EvalState::strictForceValue(Value & v)
|
void EvalState::strictForceValue(Value & v)
|
||||||
{
|
{
|
||||||
forceValue(v);
|
forceValue(v);
|
||||||
|
|
|
@ -94,7 +94,8 @@ public:
|
||||||
SymbolTable symbols;
|
SymbolTable symbols;
|
||||||
|
|
||||||
const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName, sValue,
|
const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName, sValue,
|
||||||
sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls;
|
sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls,
|
||||||
|
sFile, sLine, sColumn;
|
||||||
Symbol sDerivationNix;
|
Symbol sDerivationNix;
|
||||||
|
|
||||||
/* If set, force copying files to the Nix store even if they
|
/* If set, force copying files to the Nix store even if they
|
||||||
|
|
|
@ -130,6 +130,11 @@ void ExprConcatStrings::show(std::ostream & str)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void ExprPos::show(std::ostream & str)
|
||||||
|
{
|
||||||
|
str << "__curPos";
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
std::ostream & operator << (std::ostream & str, const Pos & pos)
|
std::ostream & operator << (std::ostream & str, const Pos & pos)
|
||||||
{
|
{
|
||||||
|
@ -315,6 +320,10 @@ void ExprConcatStrings::bindVars(const StaticEnv & env)
|
||||||
(*i)->bindVars(env);
|
(*i)->bindVars(env);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void ExprPos::bindVars(const StaticEnv & env)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
/* Storing function names. */
|
/* Storing function names. */
|
||||||
|
|
||||||
|
|
|
@ -282,6 +282,13 @@ struct ExprConcatStrings : Expr
|
||||||
COMMON_METHODS
|
COMMON_METHODS
|
||||||
};
|
};
|
||||||
|
|
||||||
|
struct ExprPos : Expr
|
||||||
|
{
|
||||||
|
Pos pos;
|
||||||
|
ExprPos(const Pos & pos) : pos(pos) { };
|
||||||
|
COMMON_METHODS
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
/* Static environments are used to map variable names onto (level,
|
/* Static environments are used to map variable names onto (level,
|
||||||
displacement) pairs used to obtain the value of the variable at
|
displacement) pairs used to obtain the value of the variable at
|
||||||
|
|
|
@ -355,7 +355,12 @@ expr_select
|
||||||
;
|
;
|
||||||
|
|
||||||
expr_simple
|
expr_simple
|
||||||
: ID { $$ = new ExprVar(CUR_POS, data->symbols.create($1)); }
|
: ID {
|
||||||
|
if (strcmp($1, "__curPos") == 0)
|
||||||
|
$$ = new ExprPos(CUR_POS);
|
||||||
|
else
|
||||||
|
$$ = new ExprVar(CUR_POS, data->symbols.create($1));
|
||||||
|
}
|
||||||
| INT { $$ = new ExprInt($1); }
|
| INT { $$ = new ExprInt($1); }
|
||||||
| '"' string_parts '"' {
|
| '"' string_parts '"' {
|
||||||
/* For efficiency, and to simplify parse trees a bit. */
|
/* For efficiency, and to simplify parse trees a bit. */
|
||||||
|
|
1
tests/lang/eval-okay-curpos.exp
Normal file
1
tests/lang/eval-okay-curpos.exp
Normal file
|
@ -0,0 +1 @@
|
||||||
|
[ 3 7 4 9 ]
|
5
tests/lang/eval-okay-curpos.nix
Normal file
5
tests/lang/eval-okay-curpos.nix
Normal file
|
@ -0,0 +1,5 @@
|
||||||
|
# Bla
|
||||||
|
let
|
||||||
|
x = __curPos;
|
||||||
|
y = __curPos;
|
||||||
|
in [ x.line x.column y.line y.column ]
|
Loading…
Reference in a new issue