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Add error context for most basic coercions

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This commit is contained in:
Guillaume Maudoux 2022-03-04 05:04:47 +01:00
parent 00e242feed
commit be1f069746
21 changed files with 309 additions and 275 deletions
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18
src/libexpr/primops/context.cc
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@ -17,7 +17,7 @@ static RegisterPrimOp primop_unsafeDiscardStringContext("__unsafeDiscardStringCo
static void prim_hasContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
PathSet context;
state.forceString(*args[0], context, pos);
state.forceString(*args[0], context, pos, "While evaluating the argument passed to builtins.hasContext");
v.mkBool(!context.empty());
}
@ -72,7 +72,7 @@ static void prim_getContext(EvalState & state, const Pos & pos, Value * * args,
Strings outputs;
};
PathSet context;
state.forceString(*args[0], context, pos);
state.forceString(*args[0], context, pos, "While evaluating the argument passed to builtins.getContext");
auto contextInfos = std::map<Path, ContextInfo>();
for (const auto & p : context) {
Path drv;
@ -136,9 +136,9 @@ static RegisterPrimOp primop_getContext("__getContext", 1, prim_getContext);
static void prim_appendContext(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
PathSet context;
auto orig = state.forceString(*args[0], context, pos);
auto orig = state.forceString(*args[0], context, pos, "while evaluating the first argument passed to builtins.appendContext");
state.forceAttrs(*args[1], pos);
state.forceAttrs(*args[1], pos, "While evaluating the second argument passed to builtins.appendContext");
auto sPath = state.symbols.create("path");
auto sAllOutputs = state.symbols.create("allOutputs");
@ -150,16 +150,16 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
});
if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(i.name));
state.forceAttrs(*i.value, *i.pos);
state.forceAttrs(*i.value, *i.pos, "While evaluating the value of a string context");
auto iter = i.value->attrs->find(sPath);
if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos))
if (state.forceBool(*iter->value, *iter->pos, "While evaluating the `path` attribute of a string context"))
context.insert(i.name);
}
iter = i.value->attrs->find(sAllOutputs);
if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos)) {
if (state.forceBool(*iter->value, *iter->pos, "While evaluating the `allOutputs` attribute of a string context")) {
if (!isDerivation(i.name)) {
throw EvalError({
.msg = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name),
@ -172,7 +172,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
iter = i.value->attrs->find(state.sOutputs);
if (iter != i.value->attrs->end()) {
state.forceList(*iter->value, *iter->pos);
state.forceList(*iter->value, *iter->pos, "While evaluating the `outputs` attribute of a string context");
if (iter->value->listSize() && !isDerivation(i.name)) {
throw EvalError({
.msg = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name),
@ -180,7 +180,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
});
}
for (auto elem : iter->value->listItems()) {
auto name = state.forceStringNoCtx(*elem, *iter->pos);
auto name = state.forceStringNoCtx(*elem, *iter->pos, "While evaluating an output name within a string context");
context.insert(concatStrings("!", name, "!", i.name));
}
}