motiejus/zig
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parseh: correct debug for forward decls

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also C typedefs emit simply `const Foo = Bar;`
since in C you can implicitly cast from a typedef
child to parent but in zig you can't.
This commit is contained in:
Andrew Kelley
2016-01-31 17:48:19 -07:00
parent 773cd851fe
commit 41b95cc237
4 changed files with 33 additions and 5 deletions
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20
src/parseh.cpp
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@@ -225,6 +225,14 @@ static AstNode *add_typedef_node(Context *c, TypeTableEntry *type_decl) {
return node;
}
static AstNode *add_const_var_node(Context *c, Buf *name, TypeTableEntry *type_entry) {
AstNode *node = create_var_decl_node(c, buf_ptr(name), make_type_node(c, type_entry));
c->global_type_table.put(name, type_entry);
c->root->data.root.top_level_decls.append(node);
return node;
}
static TypeTableEntry *get_c_void_type(Context *c) {
if (!c->c_void_type) {
c->c_void_type = get_typedecl_type(c->codegen, "c_void", c->codegen->builtin_types.entry_u8);
@@ -625,8 +633,7 @@ static void visit_typedef_decl(Context *c, const TypedefNameDecl *typedef_decl)
emit_warning(c, typedef_decl, "typedef %s - unresolved child type", buf_ptr(type_name));
return;
}
TypeTableEntry *decl_type = get_typedecl_type(c->codegen, buf_ptr(type_name), child_type);
add_typedef_node(c, decl_type);
add_const_var_node(c, type_name, child_type);
}
static void add_alias(Context *c, const char *new_name, const char *target_name) {
@@ -803,7 +810,15 @@ static TypeTableEntry *resolve_record_decl(Context *c, const RecordDecl *record_
c->struct_type_table.put(bare_name, struct_type);
RecordDecl *record_def = record_decl->getDefinition();
unsigned line = c->source_node ? c->source_node->line : 0;
if (!record_def) {
LLVMZigDIType *replacement_di_type = LLVMZigCreateDebugForwardDeclType(c->codegen->dbuilder,
LLVMZigTag_DW_structure_type(), buf_ptr(full_type_name),
LLVMZigFileToScope(c->import->di_file), c->import->di_file, line);
LLVMZigReplaceTemporary(c->codegen->dbuilder, struct_type->di_type, replacement_di_type);
struct_type->di_type = replacement_di_type;
return struct_type;
}
@@ -835,7 +850,6 @@ static TypeTableEntry *resolve_record_decl(Context *c, const RecordDecl *record_
uint64_t offset_in_bits = 0;
uint32_t i = 0;
unsigned line = c->source_node ? c->source_node->line : 0;
for (auto it = record_def->field_begin(),
it_end = record_def->field_end();
it != it_end; ++it, i += 1)