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fix crash in non-const expression in struct literal outside fn

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This commit is contained in:
Andrew Kelley 2016-04-18 18:18:41 -07:00
parent f4c7e1bf49
commit ff1ab3fe9c
2 changed files with 18 additions and 1 deletions
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8
src/analyze.cpp
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@ -2195,6 +2195,8 @@ static TypeTableEntry *analyze_container_init_expr(CodeGen *g, ImportTableEntry
int expr_field_count = container_init_expr->entries.length;
int actual_field_count = container_type->data.structure.src_field_count;
AstNode *non_const_expr_culprit = nullptr;
int *field_use_counts = allocate<int>(actual_field_count);
ConstExprValue *const_val = &get_resolved_expr(node)->const_val;
const_val->ok = true;
@ -2239,11 +2241,17 @@ static TypeTableEntry *analyze_container_init_expr(CodeGen *g, ImportTableEntry
const_val->depends_on_compile_var = const_val->depends_on_compile_var || field_val->depends_on_compile_var;
} else {
const_val->ok = false;
non_const_expr_culprit = val_field_node->data.struct_val_field.expr;
}
}
}
if (!const_val->ok) {
assert(non_const_expr_culprit);
if (context->fn_entry) {
context->fn_entry->struct_val_expr_alloca_list.append(codegen);
} else {
add_node_error(g, non_const_expr_culprit, buf_sprintf("unable to evaluate constant expression"));
}
}
for (int i = 0; i < actual_field_count; i += 1) {

9
test/run_tests.cpp
View File

@ -1191,6 +1191,15 @@ fn fibbonaci(x: i32) -> i32 {
add_compile_fail_case("@embed_file with bogus file", R"SOURCE(
const resource = @embed_file("bogus.txt");
)SOURCE", 1, ".tmp_source.zig:2:18: error: unable to find './bogus.txt'");
add_compile_fail_case("non-const expression in struct literal outside function", R"SOURCE(
struct Foo {
x: i32,
}
const a = Foo {.x = get_it()};
extern fn get_it() -> i32;
)SOURCE", 1, ".tmp_source.zig:5:27: error: unable to evaluate constant expression");
}
//////////////////////////////////////////////////////////////////////////////