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Fix automatic subtype casting bug

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gingerBill
2018-12-08 13:31:25 +00:00
parent 13f084a219
commit 4369a1714e
1 changed files with 7 additions and 4 deletions
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src/ir.cpp
+7 -4
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@@ -4581,15 +4581,14 @@ irValue *ir_emit_conv(irProcedure *proc, irValue *value, Type *t) {
Type *pst = st; Type *pst = st;
st = type_deref(st); st = type_deref(st);
bool st_is_ptr = st != pst; bool st_is_ptr = is_type_pointer(src_type);
st = base_type(st); st = base_type(st);
Type *dt = t; Type *dt = t;
bool dt_is_ptr = is_type_pointer(dt); bool dt_is_ptr = is_type_pointer(dt);
GB_ASSERT(is_type_struct(st) || is_type_union(st)); GB_ASSERT(is_type_struct(st) || is_type_raw_union(st));
String field_name = ir_lookup_subtype_polymorphic_field(proc->module->info, t, st); String field_name = ir_lookup_subtype_polymorphic_field(proc->module->info, t, src_type);
// gb_printf("field_name: %.*s\n", LIT(field_name));
if (field_name.len > 0) { if (field_name.len > 0) {
// NOTE(bill): It can be casted // NOTE(bill): It can be casted
Selection sel = lookup_field(st, field_name, false); Selection sel = lookup_field(st, field_name, false);
@@ -4614,7 +4613,11 @@ irValue *ir_emit_conv(irProcedure *proc, irValue *value, Type *t) {
return ir_emit_deep_field_ev(proc, value, sel); return ir_emit_deep_field_ev(proc, value, sel);
} }
} else {
GB_PANIC("invalid subtype cast");
} }
} else {
GB_PANIC("invalid subtype cast");
} }
} }