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moving towards env in exceptions

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This commit is contained in:
Ben Burdette 2021-08-17 14:39:50 -06:00
parent 030271184f
commit b6eb38016b
2 changed files with 29 additions and 16 deletions
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2
src/libcmd/command.cc
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@ -105,7 +105,7 @@ ref<EvalState> EvalCommand::getEvalState()
if (!evalState) {
evalState = std::make_shared<EvalState>(searchPath, getStore());
if (startReplOnEvalErrors)
debuggerHook = [evalState{ref<EvalState>(evalState)}](const Error & error, const std::map<std::string, Value *> & env) {
debuggerHook = [evalState{ref<EvalState>(evalState)}](const Error & error, const Env & env) {
printError("%s\n\n" ANSI_BOLD "Starting REPL to allow you to inspect the current state of the evaluator.\n" ANSI_NORMAL, error.what());
runRepl(evalState, env);
};

43
src/libexpr/eval.cc
View file

@ -1172,11 +1172,6 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
env2.up = &env;
dynamicEnv = &env2;
// TODO; deal with the below overrides or whatever
if (debuggerHook) {
env2.valuemap = mapBindings(attrs);
}
AttrDefs::iterator overrides = attrs.find(state.sOverrides);
bool hasOverrides = overrides != attrs.end();
@ -1195,6 +1190,11 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
v.attrs->push_back(Attr(i.first, vAttr, &i.second.pos));
}
// TODO; deal with the below overrides or whatever
if (debuggerHook) {
env2.valuemap.reset(mapBindings(*v.attrs));
}
/* If the rec contains an attribute called `__overrides', then
evaluate it, and add the attributes in that set to the rec.
This allows overriding of recursive attributes, which is
@ -1258,9 +1258,6 @@ void ExprLet::eval(EvalState & state, Env & env, Value & v)
Env & env2(state.allocEnv(attrs->attrs.size()));
env2.up = &env;
if (debuggerHook) {
env2.valuemap = mapBindings(attrs);
}
/* The recursive attributes are evaluated in the new environment,
while the inherited attributes are evaluated in the original
environment. */
@ -1268,6 +1265,18 @@ void ExprLet::eval(EvalState & state, Env & env, Value & v)
for (auto & i : attrs->attrs)
env2.values[displ++] = i.second.e->maybeThunk(state, i.second.inherited ? env : env2);
if (debuggerHook) {
auto map = new valmap();
displ = 0;
for (auto & i : attrs->attrs)
{
// std::string s = i->name;
(*map)[i.first] = env2.values[displ++];
}
env2.valuemap.reset(map);
}
body->eval(state, env2, v);
}
@ -1460,6 +1469,7 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
pos,
"attempt to call something which is not a function but %1%",
showType(fun).c_str(),
// fun.env);
map2("fun", &fun, "arg", &arg));
}
@ -1498,7 +1508,8 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
"%1% called without required argument '%2%'",
lambda,
i.name,
map2("fun", &fun, "arg", &arg));
fun.lambda.env);
// map2("fun", &fun, "arg", &arg));
env2.values[displ++] = i.def->maybeThunk(*this, env2);
} else {
attrsUsed++;
@ -1519,18 +1530,19 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
"%1% called without required argument '%2%'",
lambda,
i.name,
map2("fun", &fun, "arg", &arg));
fun.env);
// map2("fun", &fun, "arg", &arg));
env2.values[displ++] = i.def->maybeThunk(*this, env2);
} else {
attrsUsed++;
env2.values[displ++] = j->value;
// add to debugger name-value map
std::string s = i->name;
(*map)[s] = i->value;
std::string s = i.name;
(*map)[s] = i.value;
}
}
env2.valuemap = map;
env2.valuemap.reset(map);
}
/* Check that each actual argument is listed as a formal
@ -1544,7 +1556,8 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
"%1% called with unexpected argument '%2%'",
lambda,
i.name,
map2("fun", &fun, "arg", &arg));
fun.env);
// map2("fun", &fun, "arg", &arg));
abort(); // can't happen
}
}
@ -1621,7 +1634,7 @@ 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,
fun.lambda.env);
*fun.lambda.env);
// mapBindings(args));
// map1("fun", &fun)); // todo add bindings + fun
}