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Fix a segfault when auto-calling a "a@{...}" function

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Since the called function can return its argument attribute set
(e.g. "a"), the latter should not be allocated on the stack.

Reported by Shea.
This commit is contained in:
Eelco Dolstra 2012-11-09 15:09:31 +01:00
parent f581ce0b0c
commit 88164325fa
1 changed files with 5 additions and 5 deletions
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10
src/libexpr/eval.cc
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@ -790,20 +790,20 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
return; return;
} }
Value actualArgs; Value * actualArgs = allocValue();
mkAttrs(actualArgs, fun.lambda.fun->formals->formals.size()); mkAttrs(*actualArgs, fun.lambda.fun->formals->formals.size());
foreach (Formals::Formals_::iterator, i, fun.lambda.fun->formals->formals) { foreach (Formals::Formals_::iterator, i, fun.lambda.fun->formals->formals) {
Bindings::iterator j = args.find(i->name); Bindings::iterator j = args.find(i->name);
if (j != args.end()) if (j != args.end())
actualArgs.attrs->push_back(*j); actualArgs->attrs->push_back(*j);
else if (!i->def) else if (!i->def)
throwTypeError("cannot auto-call a function that has an argument without a default value (`%1%')", i->name); throwTypeError("cannot auto-call a function that has an argument without a default value (`%1%')", i->name);
} }
actualArgs.attrs->sort(); actualArgs->attrs->sort();
callFunction(fun, actualArgs, res); callFunction(fun, *actualArgs, res);
} }