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add compile error for the bug of unable to call var ags at compile time 

See #313
master
Andrew Kelley 2017-04-07 00:33:19 -04:00
parent a3de550d3b
commit ffb4852012
2 changed files with 8 additions and 0 deletions
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7
src/ir.cpp
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@ -8252,6 +8252,13 @@ static TypeTableEntry *ir_analyze_fn_call(IrAnalyze *ira, IrInstructionCall *cal
return ira->codegen->builtin_types.entry_invalid;
}
if (fn_proto_node->data.fn_proto.is_var_args) {
ir_add_error(ira, &call_instruction->base,
buf_sprintf("compiler bug: unable to call var args function at compile time. https://github.com/andrewrk/zig/issues/313"));
return ira->codegen->builtin_types.entry_invalid;
}
for (size_t call_i = 0; call_i < call_instruction->arg_count; call_i += 1) {
IrInstruction *old_arg = call_instruction->args[call_i]->other;
if (type_is_invalid(old_arg->value.type))

1
test/cases/var_args.zig
View File

@ -37,6 +37,7 @@ test "runtime parameter before var args" {
assert(extraFn(10, false) == 1);
assert(extraFn(10, false, true) == 2);
// TODO issue #313
//comptime {
// assert(extraFn(10) == 0);
// assert(extraFn(10, false) == 1);