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Pass all args when auto-calling a function with an ellipsis

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The command line options --arg and --argstr that are used by a bunch of
CLI commands to pass arguments to top-level functions in files go
through the same code-path as auto-calling top-level functions with
their default arguments - this, however, was only passing the arguments
that were *explicitly* mentioned in the formals of the function - in the
case of an as-pattern with an ellipsis (eg args @ { ... }) extra passed
arguments would get omitted. This fixes that to instead pass *all*
specified auto args in the case that our function has an ellipsis.

Fixes #598
This commit is contained in:
Griffin Smith 2020-08-27 12:28:12 -04:00
parent eb75282b8d
commit 626200713b
1 changed files with 17 additions and 6 deletions
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23
src/libexpr/eval.cc
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@ -1299,12 +1299,23 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
Value * actualArgs = allocValue(); Value * actualArgs = allocValue();
mkAttrs(*actualArgs, fun.lambda.fun->formals->formals.size()); mkAttrs(*actualArgs, fun.lambda.fun->formals->formals.size());
for (auto & i : fun.lambda.fun->formals->formals) { if (fun.lambda.fun->formals->ellipsis) {
Bindings::iterator j = args.find(i.name); // If the formals have an ellipsis (eg the function accepts extra args) pass
if (j != args.end()) // all available automatic arguments (which includes arguments specified on
actualArgs->attrs->push_back(*j); // the command line via --arg/--argstr)
else if (!i.def) for (auto& v : args) {
throwTypeError("cannot auto-call a function that has an argument without a default value ('%1%')", i.name); actualArgs->attrs->push_back(v);
}
} else {
// Otherwise, only pass the arguments that the function accepts
for (auto & i : fun.lambda.fun->formals->formals) {
Bindings::iterator j = args.find(i.name);
if (j != args.end()) {
actualArgs->attrs->push_back(*j);
} else if (!i.def) {
throwTypeError("cannot auto-call a function that has an argument without a default value ('%1%')", i.name);
}
}
} }
actualArgs->attrs->sort(); actualArgs->attrs->sort();