motiejus/zig
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implement literal error values

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See #23
This commit is contained in:
Andrew Kelley
2016-01-23 00:34:47 -07:00
parent 1543043bf5
commit a922d5d42a
4 changed files with 60 additions and 5 deletions
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13
src/codegen.cpp
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@@ -284,6 +284,13 @@ static LLVMValueRef gen_cast_expr(CodeGen *g, AstNode *node) {
zig_unreachable();
case CastOpNoop:
return expr_val;
case CastOpErrToInt:
assert(actual_type->id == TypeTableEntryIdError);
if (actual_type->data.error.child_type->size_in_bits == 0) {
return expr_val;
} else {
zig_panic("TODO");
}
case CastOpMaybeWrap:
{
assert(cast_expr->tmp_ptr);
@@ -2122,6 +2129,12 @@ static LLVMValueRef gen_const_val(CodeGen *g, TypeTableEntry *type_entry, ConstE
} else {
return global_value;
}
} else if (type_entry->id == TypeTableEntryIdError) {
if (type_entry->data.error.child_type->size_in_bits == 0) {
return LLVMConstInt(g->err_tag_type->type_ref, const_val->data.x_err->value, false);
} else {
zig_panic("TODO");
}
} else {
zig_unreachable();
}