1423 lines
57 KiB
C++
1423 lines
57 KiB
C++
/*
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* Copyright (c) 2015 Andrew Kelley
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*
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* This file is part of zig, which is MIT licensed.
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* See http://opensource.org/licenses/MIT
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*/
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#include "parseh.hpp"
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#include "config.h"
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#include "os.hpp"
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#include "error.hpp"
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#include "parser.hpp"
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#include "all_types.hpp"
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#include "c_tokenizer.hpp"
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#include "analyze.hpp"
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#include <clang/Frontend/ASTUnit.h>
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#include <clang/Frontend/CompilerInstance.h>
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#include <string.h>
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using namespace clang;
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struct MacroSymbol {
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Buf *name;
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Buf *value;
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};
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struct GlobalValue {
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TypeTableEntry *type;
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bool is_const;
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};
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struct Alias {
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Buf *name;
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Tld *tld;
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};
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struct Context {
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ImportTableEntry *import;
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ZigList<ErrorMsg *> *errors;
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bool warnings_on;
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VisibMod visib_mod;
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HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> global_type_table;
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HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> struct_type_table;
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HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> enum_type_table;
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HashMap<const void *, TypeTableEntry *, ptr_hash, ptr_eq> decl_table;
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HashMap<Buf *, Tld *, buf_hash, buf_eql_buf> macro_table;
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SourceManager *source_manager;
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ZigList<Alias> aliases;
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ZigList<MacroSymbol> macro_symbols;
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AstNode *source_node;
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uint32_t next_anon_index;
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CodeGen *codegen;
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};
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static TypeTableEntry *resolve_qual_type_with_table(Context *c, QualType qt, const Decl *decl,
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HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> *type_table);
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static TypeTableEntry *resolve_qual_type(Context *c, QualType qt, const Decl *decl);
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static TypeTableEntry *resolve_record_decl(Context *c, const RecordDecl *record_decl);
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static TypeTableEntry *resolve_enum_decl(Context *c, const EnumDecl *enum_decl);
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__attribute__ ((format (printf, 3, 4)))
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static void emit_warning(Context *c, const Decl *decl, const char *format, ...) {
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if (!c->warnings_on) {
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return;
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}
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va_list ap;
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va_start(ap, format);
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Buf *msg = buf_vprintf(format, ap);
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va_end(ap);
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SourceLocation sl = decl->getLocation();
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StringRef filename = c->source_manager->getFilename(sl);
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const char *filename_bytes = (const char *)filename.bytes_begin();
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Buf *path;
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if (filename_bytes) {
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path = buf_create_from_str(filename_bytes);
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} else {
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path = buf_sprintf("(no file)");
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}
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unsigned line = c->source_manager->getSpellingLineNumber(sl);
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unsigned column = c->source_manager->getSpellingColumnNumber(sl);
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fprintf(stderr, "%s:%u:%u: warning: %s\n", buf_ptr(path), line, column, buf_ptr(msg));
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}
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static uint32_t get_next_anon_index(Context *c) {
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uint32_t result = c->next_anon_index;
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c->next_anon_index += 1;
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return result;
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}
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static void add_global_alias(Context *c, Buf *name, Tld *tld) {
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c->import->decls_scope->decl_table.put(name, tld);
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}
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static void add_global_weak_alias(Context *c, Buf *name, Tld *tld) {
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Alias *alias = c->aliases.add_one();
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alias->name = name;
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alias->tld = tld;
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}
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static void add_global(Context *c, Tld *tld) {
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return add_global_alias(c, tld->name, tld);
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}
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static Tld *get_global(Context *c, Buf *name) {
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auto entry = c->import->decls_scope->decl_table.maybe_get(name);
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return entry ? entry->value : nullptr;
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}
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static const char *decl_name(const Decl *decl) {
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const NamedDecl *named_decl = static_cast<const NamedDecl *>(decl);
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return (const char *)named_decl->getName().bytes_begin();
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}
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static void parseh_init_tld(Context *c, Tld *tld, TldId id, Buf *name) {
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init_tld(tld, id, name, c->visib_mod, c->source_node, &c->import->decls_scope->base, nullptr);
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tld->resolution = TldResolutionOk;
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}
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static TldVar *create_global_var(Context *c, Buf *name, TypeTableEntry *var_type, ConstExprValue *var_value, bool is_const) {
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TldVar *tld_var = allocate<TldVar>(1);
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parseh_init_tld(c, &tld_var->base, TldIdVar, name);
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tld_var->var = add_variable(c->codegen, c->source_node, &c->import->decls_scope->base, name, var_type, is_const, var_value);
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return tld_var;
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}
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static Tld *create_global_char_lit_var(Context *c, Buf *name, uint8_t value) {
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TldVar *tld_var = create_global_var(c, name, c->codegen->builtin_types.entry_u8,
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create_const_unsigned_negative(value, false), true);
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return &tld_var->base;
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}
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static Tld *create_global_str_lit_var(Context *c, Buf *name, Buf *value) {
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TypeTableEntry *str_type = get_array_type(c->codegen, c->codegen->builtin_types.entry_u8, buf_len(value));
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TldVar *tld_var = create_global_var(c, name, str_type, create_const_str_lit(value), true);
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return &tld_var->base;
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}
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static Tld *create_global_num_lit_unsigned_negative(Context *c, Buf *name, uint64_t x, bool negative) {
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TldVar *tld_var = create_global_var(c, name, c->codegen->builtin_types.entry_num_lit_int,
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create_const_unsigned_negative(x, negative), true);
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return &tld_var->base;
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}
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static Tld *create_global_num_lit_float(Context *c, Buf *name, double value) {
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TldVar *tld_var = create_global_var(c, name, c->codegen->builtin_types.entry_num_lit_float,
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create_const_float(value), true);
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return &tld_var->base;
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}
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static ConstExprValue *create_const_num_lit_ap(Context *c, const Decl *source_decl, const llvm::APSInt &aps_int) {
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if (aps_int.isSigned()) {
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if (aps_int > INT64_MAX || aps_int < INT64_MIN) {
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emit_warning(c, source_decl, "integer overflow\n");
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return nullptr;
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} else {
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return create_const_signed(aps_int.getExtValue());
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}
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} else {
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if (aps_int > INT64_MAX) {
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emit_warning(c, source_decl, "integer overflow\n");
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return nullptr;
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} else {
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return create_const_unsigned_negative(aps_int.getExtValue(), false);
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}
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}
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}
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static Tld *create_global_num_lit_ap(Context *c, const Decl *source_decl, Buf *name,
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const llvm::APSInt &aps_int)
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{
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ConstExprValue *const_value = create_const_num_lit_ap(c, source_decl, aps_int);
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if (!const_value)
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return nullptr;
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TldVar *tld_var = create_global_var(c, name, c->codegen->builtin_types.entry_num_lit_int, const_value, true);
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return &tld_var->base;
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}
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static void add_const_type(Context *c, Buf *name, TypeTableEntry *type_entry) {
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ConstExprValue *var_value = allocate<ConstExprValue>(1);
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var_value->special = ConstValSpecialStatic;
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var_value->data.x_type = type_entry;
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TldVar *tld_var = create_global_var(c, name, c->codegen->builtin_types.entry_type, var_value, true);
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add_global(c, &tld_var->base);
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c->global_type_table.put(name, type_entry);
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}
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static Tld *add_container_tld(Context *c, TypeTableEntry *type_entry) {
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TldContainer *tld_container = allocate<TldContainer>(1);
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parseh_init_tld(c, &tld_container->base, TldIdContainer, &type_entry->name);
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tld_container->type_entry = type_entry;
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add_global(c, &tld_container->base);
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return &tld_container->base;
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}
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static Tld *add_typedef_tld(Context *c, TypeTableEntry *type_decl) {
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assert(type_decl);
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assert(type_decl->id == TypeTableEntryIdTypeDecl);
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TldTypeDef *tld_typedef = allocate<TldTypeDef>(1);
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parseh_init_tld(c, &tld_typedef->base, TldIdTypeDef, &type_decl->name);
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tld_typedef->type_entry = type_decl;
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add_global(c, &tld_typedef->base);
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c->global_type_table.put(&type_decl->name, type_decl);
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return &tld_typedef->base;
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}
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static bool is_c_void_type(Context *c, TypeTableEntry *type_entry) {
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while (type_entry->id == TypeTableEntryIdTypeDecl) {
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if (type_entry == c->codegen->builtin_types.entry_c_void) {
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return true;
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}
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type_entry = type_entry->data.type_decl.child_type;
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}
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return false;
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}
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static bool qual_type_child_is_fn_proto(const QualType &qt) {
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if (qt.getTypePtr()->getTypeClass() == Type::Paren) {
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const ParenType *paren_type = static_cast<const ParenType *>(qt.getTypePtr());
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if (paren_type->getInnerType()->getTypeClass() == Type::FunctionProto) {
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return true;
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}
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} else if (qt.getTypePtr()->getTypeClass() == Type::Attributed) {
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const AttributedType *attr_type = static_cast<const AttributedType *>(qt.getTypePtr());
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return qual_type_child_is_fn_proto(attr_type->getEquivalentType());
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}
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return false;
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}
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static TypeTableEntry *resolve_type_with_table(Context *c, const Type *ty, const Decl *decl,
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HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> *type_table)
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{
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switch (ty->getTypeClass()) {
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case Type::Builtin:
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{
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const BuiltinType *builtin_ty = static_cast<const BuiltinType*>(ty);
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switch (builtin_ty->getKind()) {
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case BuiltinType::Void:
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return c->codegen->builtin_types.entry_c_void;
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case BuiltinType::Bool:
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return c->codegen->builtin_types.entry_bool;
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case BuiltinType::Char_U:
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case BuiltinType::UChar:
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case BuiltinType::Char_S:
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return c->codegen->builtin_types.entry_u8;
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case BuiltinType::SChar:
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return c->codegen->builtin_types.entry_i8;
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case BuiltinType::UShort:
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return get_c_int_type(c->codegen, CIntTypeUShort);
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case BuiltinType::UInt:
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return get_c_int_type(c->codegen, CIntTypeUInt);
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case BuiltinType::ULong:
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return get_c_int_type(c->codegen, CIntTypeULong);
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case BuiltinType::ULongLong:
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return get_c_int_type(c->codegen, CIntTypeULongLong);
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case BuiltinType::Short:
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return get_c_int_type(c->codegen, CIntTypeShort);
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case BuiltinType::Int:
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return get_c_int_type(c->codegen, CIntTypeInt);
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case BuiltinType::Long:
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return get_c_int_type(c->codegen, CIntTypeLong);
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case BuiltinType::LongLong:
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return get_c_int_type(c->codegen, CIntTypeLongLong);
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case BuiltinType::Float:
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return c->codegen->builtin_types.entry_f32;
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case BuiltinType::Double:
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return c->codegen->builtin_types.entry_f64;
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case BuiltinType::LongDouble:
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return c->codegen->builtin_types.entry_c_long_double;
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case BuiltinType::WChar_U:
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case BuiltinType::Char16:
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case BuiltinType::Char32:
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case BuiltinType::UInt128:
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case BuiltinType::WChar_S:
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case BuiltinType::Int128:
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case BuiltinType::Half:
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case BuiltinType::NullPtr:
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case BuiltinType::ObjCId:
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case BuiltinType::ObjCClass:
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case BuiltinType::ObjCSel:
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case BuiltinType::OMPArraySection:
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case BuiltinType::Dependent:
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case BuiltinType::Overload:
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case BuiltinType::BoundMember:
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case BuiltinType::PseudoObject:
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case BuiltinType::UnknownAny:
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case BuiltinType::BuiltinFn:
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case BuiltinType::ARCUnbridgedCast:
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case BuiltinType::OCLImage1dRO:
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case BuiltinType::OCLImage1dArrayRO:
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case BuiltinType::OCLImage1dBufferRO:
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case BuiltinType::OCLImage2dRO:
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case BuiltinType::OCLImage2dArrayRO:
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case BuiltinType::OCLImage2dDepthRO:
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case BuiltinType::OCLImage2dArrayDepthRO:
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case BuiltinType::OCLImage2dMSAARO:
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case BuiltinType::OCLImage2dArrayMSAARO:
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case BuiltinType::OCLImage2dMSAADepthRO:
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case BuiltinType::OCLImage2dArrayMSAADepthRO:
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case BuiltinType::OCLImage3dRO:
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case BuiltinType::OCLImage1dWO:
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case BuiltinType::OCLImage1dArrayWO:
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case BuiltinType::OCLImage1dBufferWO:
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case BuiltinType::OCLImage2dWO:
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case BuiltinType::OCLImage2dArrayWO:
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case BuiltinType::OCLImage2dDepthWO:
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case BuiltinType::OCLImage2dArrayDepthWO:
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case BuiltinType::OCLImage2dMSAAWO:
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case BuiltinType::OCLImage2dArrayMSAAWO:
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case BuiltinType::OCLImage2dMSAADepthWO:
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case BuiltinType::OCLImage2dArrayMSAADepthWO:
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case BuiltinType::OCLImage3dWO:
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case BuiltinType::OCLImage1dRW:
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case BuiltinType::OCLImage1dArrayRW:
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case BuiltinType::OCLImage1dBufferRW:
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case BuiltinType::OCLImage2dRW:
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case BuiltinType::OCLImage2dArrayRW:
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case BuiltinType::OCLImage2dDepthRW:
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case BuiltinType::OCLImage2dArrayDepthRW:
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case BuiltinType::OCLImage2dMSAARW:
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case BuiltinType::OCLImage2dArrayMSAARW:
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case BuiltinType::OCLImage2dMSAADepthRW:
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case BuiltinType::OCLImage2dArrayMSAADepthRW:
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case BuiltinType::OCLImage3dRW:
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case BuiltinType::Float128:
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case BuiltinType::OCLSampler:
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case BuiltinType::OCLEvent:
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case BuiltinType::OCLClkEvent:
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case BuiltinType::OCLQueue:
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case BuiltinType::OCLNDRange:
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case BuiltinType::OCLReserveID:
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emit_warning(c, decl, "missed a builtin type");
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return c->codegen->builtin_types.entry_invalid;
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}
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break;
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}
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case Type::Pointer:
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{
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const PointerType *pointer_ty = static_cast<const PointerType*>(ty);
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QualType child_qt = pointer_ty->getPointeeType();
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TypeTableEntry *child_type = resolve_qual_type(c, child_qt, decl);
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if (get_underlying_type(child_type)->id == TypeTableEntryIdInvalid) {
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emit_warning(c, decl, "pointer to unresolved type");
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return c->codegen->builtin_types.entry_invalid;
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}
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if (qual_type_child_is_fn_proto(child_qt)) {
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return get_maybe_type(c->codegen, child_type);
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}
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bool is_const = child_qt.isConstQualified();
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TypeTableEntry *non_null_pointer_type = get_pointer_to_type(c->codegen, child_type, is_const);
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return get_maybe_type(c->codegen, non_null_pointer_type);
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}
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case Type::Typedef:
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{
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const TypedefType *typedef_ty = static_cast<const TypedefType*>(ty);
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const TypedefNameDecl *typedef_decl = typedef_ty->getDecl();
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Buf *type_name = buf_create_from_str(decl_name(typedef_decl));
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if (buf_eql_str(type_name, "uint8_t")) {
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return c->codegen->builtin_types.entry_u8;
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} else if (buf_eql_str(type_name, "int8_t")) {
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return c->codegen->builtin_types.entry_i8;
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} else if (buf_eql_str(type_name, "uint16_t")) {
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return c->codegen->builtin_types.entry_u16;
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} else if (buf_eql_str(type_name, "int16_t")) {
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return c->codegen->builtin_types.entry_i16;
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} else if (buf_eql_str(type_name, "uint32_t")) {
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return c->codegen->builtin_types.entry_u32;
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} else if (buf_eql_str(type_name, "int32_t")) {
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return c->codegen->builtin_types.entry_i32;
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} else if (buf_eql_str(type_name, "uint64_t")) {
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return c->codegen->builtin_types.entry_u64;
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} else if (buf_eql_str(type_name, "int64_t")) {
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return c->codegen->builtin_types.entry_i64;
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} else if (buf_eql_str(type_name, "intptr_t")) {
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return c->codegen->builtin_types.entry_isize;
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} else if (buf_eql_str(type_name, "uintptr_t")) {
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return c->codegen->builtin_types.entry_usize;
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} else {
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auto entry = type_table->maybe_get(type_name);
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if (entry) {
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if (get_underlying_type(entry->value)->id == TypeTableEntryIdInvalid) {
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return c->codegen->builtin_types.entry_invalid;
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} else {
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return entry->value;
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}
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} else {
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return c->codegen->builtin_types.entry_invalid;
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}
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}
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}
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case Type::Elaborated:
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{
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const ElaboratedType *elaborated_ty = static_cast<const ElaboratedType*>(ty);
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switch (elaborated_ty->getKeyword()) {
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case ETK_Struct:
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return resolve_qual_type_with_table(c, elaborated_ty->getNamedType(),
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decl, &c->struct_type_table);
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case ETK_Enum:
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return resolve_qual_type_with_table(c, elaborated_ty->getNamedType(),
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decl, &c->enum_type_table);
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case ETK_Interface:
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case ETK_Union:
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case ETK_Class:
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case ETK_Typename:
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case ETK_None:
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emit_warning(c, decl, "unsupported elaborated type");
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return c->codegen->builtin_types.entry_invalid;
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}
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}
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case Type::FunctionProto:
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{
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const FunctionProtoType *fn_proto_ty = static_cast<const FunctionProtoType*>(ty);
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|
|
switch (fn_proto_ty->getCallConv()) {
|
|
case CC_C: // __attribute__((cdecl))
|
|
break;
|
|
case CC_X86StdCall: // __attribute__((stdcall))
|
|
emit_warning(c, decl, "function type has x86 stdcall calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86FastCall: // __attribute__((fastcall))
|
|
emit_warning(c, decl, "function type has x86 fastcall calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86ThisCall: // __attribute__((thiscall))
|
|
emit_warning(c, decl, "function type has x86 thiscall calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86VectorCall: // __attribute__((vectorcall))
|
|
emit_warning(c, decl, "function type has x86 vectorcall calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86Pascal: // __attribute__((pascal))
|
|
emit_warning(c, decl, "function type has x86 pascal calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86_64Win64: // __attribute__((ms_abi))
|
|
emit_warning(c, decl, "function type has x86 64win64 calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_X86_64SysV: // __attribute__((sysv_abi))
|
|
emit_warning(c, decl, "function type has x86 64sysv calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_AAPCS: // __attribute__((pcs("aapcs")))
|
|
emit_warning(c, decl, "function type has aapcs calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_AAPCS_VFP: // __attribute__((pcs("aapcs-vfp")))
|
|
emit_warning(c, decl, "function type has aapcs-vfp calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_IntelOclBicc: // __attribute__((intel_ocl_bicc))
|
|
emit_warning(c, decl, "function type has intel_ocl_bicc calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_SpirFunction: // default for OpenCL functions on SPIR target
|
|
emit_warning(c, decl, "function type has SPIR function calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_OpenCLKernel:
|
|
emit_warning(c, decl, "function type has OpenCLKernel calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_Swift:
|
|
emit_warning(c, decl, "function type has Swift calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_PreserveMost:
|
|
emit_warning(c, decl, "function type has PreserveMost calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
case CC_PreserveAll:
|
|
emit_warning(c, decl, "function type has PreserveAll calling convention");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
}
|
|
|
|
FnTypeId fn_type_id = {0};
|
|
fn_type_id.is_naked = false;
|
|
fn_type_id.is_extern = true;
|
|
fn_type_id.is_var_args = fn_proto_ty->isVariadic();
|
|
fn_type_id.param_count = fn_proto_ty->getNumParams();
|
|
|
|
|
|
if (fn_proto_ty->getNoReturnAttr()) {
|
|
fn_type_id.return_type = c->codegen->builtin_types.entry_unreachable;
|
|
} else {
|
|
fn_type_id.return_type = resolve_qual_type(c, fn_proto_ty->getReturnType(), decl);
|
|
if (get_underlying_type(fn_type_id.return_type)->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, decl, "unresolved function proto return type");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
}
|
|
// convert c_void to actual void (only for return type)
|
|
if (is_c_void_type(c, fn_type_id.return_type)) {
|
|
fn_type_id.return_type = c->codegen->builtin_types.entry_void;
|
|
}
|
|
}
|
|
|
|
fn_type_id.param_info = allocate_nonzero<FnTypeParamInfo>(fn_type_id.param_count);
|
|
for (size_t i = 0; i < fn_type_id.param_count; i += 1) {
|
|
QualType qt = fn_proto_ty->getParamType(i);
|
|
TypeTableEntry *param_type = resolve_qual_type(c, qt, decl);
|
|
|
|
if (get_underlying_type(param_type)->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, decl, "unresolved function proto parameter type");
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
}
|
|
|
|
FnTypeParamInfo *param_info = &fn_type_id.param_info[i];
|
|
param_info->type = param_type;
|
|
param_info->is_noalias = qt.isRestrictQualified();
|
|
}
|
|
|
|
return get_fn_type(c->codegen, &fn_type_id);
|
|
}
|
|
case Type::Record:
|
|
{
|
|
const RecordType *record_ty = static_cast<const RecordType*>(ty);
|
|
return resolve_record_decl(c, record_ty->getDecl());
|
|
}
|
|
case Type::Enum:
|
|
{
|
|
const EnumType *enum_ty = static_cast<const EnumType*>(ty);
|
|
return resolve_enum_decl(c, enum_ty->getDecl());
|
|
}
|
|
case Type::ConstantArray:
|
|
{
|
|
const ConstantArrayType *const_arr_ty = static_cast<const ConstantArrayType *>(ty);
|
|
TypeTableEntry *child_type = resolve_qual_type(c, const_arr_ty->getElementType(), decl);
|
|
if (child_type->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, decl, "unresolved array element type");
|
|
return child_type;
|
|
}
|
|
uint64_t size = const_arr_ty->getSize().getLimitedValue();
|
|
return get_array_type(c->codegen, child_type, size);
|
|
}
|
|
case Type::Paren:
|
|
{
|
|
const ParenType *paren_ty = static_cast<const ParenType *>(ty);
|
|
return resolve_qual_type(c, paren_ty->getInnerType(), decl);
|
|
}
|
|
case Type::Decayed:
|
|
{
|
|
const DecayedType *decayed_ty = static_cast<const DecayedType *>(ty);
|
|
return resolve_qual_type(c, decayed_ty->getDecayedType(), decl);
|
|
}
|
|
case Type::Attributed:
|
|
{
|
|
const AttributedType *attributed_ty = static_cast<const AttributedType *>(ty);
|
|
return resolve_qual_type(c, attributed_ty->getEquivalentType(), decl);
|
|
}
|
|
case Type::BlockPointer:
|
|
case Type::LValueReference:
|
|
case Type::RValueReference:
|
|
case Type::MemberPointer:
|
|
case Type::IncompleteArray:
|
|
case Type::VariableArray:
|
|
case Type::DependentSizedArray:
|
|
case Type::DependentSizedExtVector:
|
|
case Type::Vector:
|
|
case Type::ExtVector:
|
|
case Type::FunctionNoProto:
|
|
case Type::UnresolvedUsing:
|
|
case Type::Adjusted:
|
|
case Type::TypeOfExpr:
|
|
case Type::TypeOf:
|
|
case Type::Decltype:
|
|
case Type::UnaryTransform:
|
|
case Type::TemplateTypeParm:
|
|
case Type::SubstTemplateTypeParm:
|
|
case Type::SubstTemplateTypeParmPack:
|
|
case Type::TemplateSpecialization:
|
|
case Type::Auto:
|
|
case Type::InjectedClassName:
|
|
case Type::DependentName:
|
|
case Type::DependentTemplateSpecialization:
|
|
case Type::PackExpansion:
|
|
case Type::ObjCObject:
|
|
case Type::ObjCInterface:
|
|
case Type::Complex:
|
|
case Type::ObjCObjectPointer:
|
|
case Type::Atomic:
|
|
case Type::Pipe:
|
|
emit_warning(c, decl, "missed a '%s' type", ty->getTypeClassName());
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
}
|
|
zig_unreachable();
|
|
}
|
|
|
|
static TypeTableEntry *resolve_qual_type_with_table(Context *c, QualType qt, const Decl *decl,
|
|
HashMap<Buf *, TypeTableEntry *, buf_hash, buf_eql_buf> *type_table)
|
|
{
|
|
return resolve_type_with_table(c, qt.getTypePtr(), decl, type_table);
|
|
}
|
|
|
|
static TypeTableEntry *resolve_qual_type(Context *c, QualType qt, const Decl *decl) {
|
|
return resolve_qual_type_with_table(c, qt, decl, &c->global_type_table);
|
|
}
|
|
|
|
static void visit_fn_decl(Context *c, const FunctionDecl *fn_decl) {
|
|
Buf *fn_name = buf_create_from_str(decl_name(fn_decl));
|
|
|
|
if (get_global(c, fn_name)) {
|
|
// we already saw this function
|
|
return;
|
|
}
|
|
|
|
TypeTableEntry *fn_type = resolve_qual_type(c, fn_decl->getType(), fn_decl);
|
|
|
|
if (fn_type->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, fn_decl, "ignoring function '%s' - unable to resolve type", buf_ptr(fn_name));
|
|
return;
|
|
}
|
|
assert(fn_type->id == TypeTableEntryIdFn);
|
|
|
|
bool internal_linkage = false;
|
|
FnTableEntry *fn_entry = create_fn_raw(FnInlineAuto, internal_linkage);
|
|
buf_init_from_buf(&fn_entry->symbol_name, fn_name);
|
|
fn_entry->type_entry = fn_type;
|
|
|
|
assert(!fn_type->data.fn.fn_type_id.is_naked);
|
|
|
|
TldFn *tld_fn = allocate<TldFn>(1);
|
|
parseh_init_tld(c, &tld_fn->base, TldIdFn, fn_name);
|
|
tld_fn->fn_entry = fn_entry;
|
|
add_global(c, &tld_fn->base);
|
|
|
|
c->codegen->fn_protos.append(fn_entry);
|
|
}
|
|
|
|
static void visit_typedef_decl(Context *c, const TypedefNameDecl *typedef_decl) {
|
|
QualType child_qt = typedef_decl->getUnderlyingType();
|
|
Buf *type_name = buf_create_from_str(decl_name(typedef_decl));
|
|
|
|
if (buf_eql_str(type_name, "uint8_t") ||
|
|
buf_eql_str(type_name, "int8_t") ||
|
|
buf_eql_str(type_name, "uint16_t") ||
|
|
buf_eql_str(type_name, "int16_t") ||
|
|
buf_eql_str(type_name, "uint32_t") ||
|
|
buf_eql_str(type_name, "int32_t") ||
|
|
buf_eql_str(type_name, "uint64_t") ||
|
|
buf_eql_str(type_name, "int64_t") ||
|
|
buf_eql_str(type_name, "intptr_t") ||
|
|
buf_eql_str(type_name, "uintptr_t"))
|
|
{
|
|
// special case we can just use the builtin types
|
|
return;
|
|
}
|
|
|
|
// if the underlying type is anonymous, we can special case it to just
|
|
// use the name of this typedef
|
|
// TODO
|
|
|
|
TypeTableEntry *child_type = resolve_qual_type(c, child_qt, typedef_decl);
|
|
if (child_type->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, typedef_decl, "typedef %s - unresolved child type", buf_ptr(type_name));
|
|
return;
|
|
}
|
|
add_const_type(c, type_name, child_type);
|
|
}
|
|
|
|
static void replace_with_fwd_decl(Context *c, TypeTableEntry *struct_type, Buf *full_type_name) {
|
|
unsigned line = c->source_node ? c->source_node->line : 0;
|
|
ZigLLVMDIType *replacement_di_type = ZigLLVMCreateDebugForwardDeclType(c->codegen->dbuilder,
|
|
ZigLLVMTag_DW_structure_type(), buf_ptr(full_type_name),
|
|
ZigLLVMFileToScope(c->import->di_file), c->import->di_file, line);
|
|
|
|
ZigLLVMReplaceTemporary(c->codegen->dbuilder, struct_type->di_type, replacement_di_type);
|
|
struct_type->di_type = replacement_di_type;
|
|
}
|
|
|
|
static TypeTableEntry *resolve_enum_decl(Context *c, const EnumDecl *enum_decl) {
|
|
auto existing_entry = c->decl_table.maybe_get((void*)enum_decl);
|
|
if (existing_entry) {
|
|
return existing_entry->value;
|
|
}
|
|
|
|
const char *raw_name = decl_name(enum_decl);
|
|
|
|
Buf *bare_name;
|
|
if (raw_name[0] == 0) {
|
|
bare_name = buf_sprintf("anon_$%" PRIu32, get_next_anon_index(c));
|
|
} else {
|
|
bare_name = buf_create_from_str(raw_name);
|
|
}
|
|
|
|
Buf *full_type_name = buf_sprintf("enum_%s", buf_ptr(bare_name));
|
|
|
|
const EnumDecl *enum_def = enum_decl->getDefinition();
|
|
if (!enum_def) {
|
|
TypeTableEntry *enum_type = get_partial_container_type(c->codegen, c->import,
|
|
&c->import->decls_scope->base,
|
|
ContainerKindEnum, c->source_node, buf_ptr(full_type_name));
|
|
c->enum_type_table.put(bare_name, enum_type);
|
|
c->decl_table.put(enum_decl, enum_type);
|
|
replace_with_fwd_decl(c, enum_type, full_type_name);
|
|
|
|
return enum_type;
|
|
}
|
|
|
|
bool pure_enum = true;
|
|
uint32_t field_count = 0;
|
|
for (auto it = enum_def->enumerator_begin(),
|
|
it_end = enum_def->enumerator_end();
|
|
it != it_end; ++it, field_count += 1)
|
|
{
|
|
const EnumConstantDecl *enum_const = *it;
|
|
if (enum_const->getInitExpr()) {
|
|
pure_enum = false;
|
|
}
|
|
}
|
|
|
|
TypeTableEntry *tag_type_entry = resolve_qual_type(c, enum_decl->getIntegerType(), enum_decl);
|
|
|
|
if (pure_enum) {
|
|
TypeTableEntry *enum_type = get_partial_container_type(c->codegen, c->import,
|
|
&c->import->decls_scope->base,
|
|
ContainerKindEnum, c->source_node, buf_ptr(full_type_name));
|
|
c->enum_type_table.put(bare_name, enum_type);
|
|
c->decl_table.put(enum_decl, enum_type);
|
|
|
|
enum_type->data.enumeration.gen_field_count = 0;
|
|
enum_type->data.enumeration.complete = true;
|
|
enum_type->data.enumeration.tag_type = tag_type_entry;
|
|
|
|
enum_type->data.enumeration.src_field_count = field_count;
|
|
enum_type->data.enumeration.fields = allocate<TypeEnumField>(field_count);
|
|
ZigLLVMDIEnumerator **di_enumerators = allocate<ZigLLVMDIEnumerator*>(field_count);
|
|
|
|
uint32_t i = 0;
|
|
for (auto it = enum_def->enumerator_begin(),
|
|
it_end = enum_def->enumerator_end();
|
|
it != it_end; ++it, i += 1)
|
|
{
|
|
const EnumConstantDecl *enum_const = *it;
|
|
|
|
Buf *enum_val_name = buf_create_from_str(decl_name(enum_const));
|
|
Buf *field_name;
|
|
if (buf_starts_with_buf(enum_val_name, bare_name)) {
|
|
field_name = buf_slice(enum_val_name, buf_len(bare_name), buf_len(enum_val_name));
|
|
} else {
|
|
field_name = enum_val_name;
|
|
}
|
|
|
|
TypeEnumField *type_enum_field = &enum_type->data.enumeration.fields[i];
|
|
type_enum_field->name = field_name;
|
|
type_enum_field->type_entry = c->codegen->builtin_types.entry_void;
|
|
type_enum_field->value = i;
|
|
|
|
di_enumerators[i] = ZigLLVMCreateDebugEnumerator(c->codegen->dbuilder, buf_ptr(type_enum_field->name), i);
|
|
|
|
|
|
// in C each enum value is in the global namespace. so we put them there too.
|
|
// at this point we can rely on the enum emitting successfully
|
|
add_global(c, create_global_num_lit_unsigned_negative(c, enum_val_name, i, false));
|
|
}
|
|
|
|
// create llvm type for root struct
|
|
enum_type->type_ref = tag_type_entry->type_ref;
|
|
|
|
// create debug type for tag
|
|
unsigned line = c->source_node ? (c->source_node->line + 1) : 0;
|
|
uint64_t debug_size_in_bits = 8*LLVMStoreSizeOfType(c->codegen->target_data_ref, enum_type->type_ref);
|
|
uint64_t debug_align_in_bits = 8*LLVMABISizeOfType(c->codegen->target_data_ref, enum_type->type_ref);
|
|
ZigLLVMDIType *tag_di_type = ZigLLVMCreateDebugEnumerationType(c->codegen->dbuilder,
|
|
ZigLLVMFileToScope(c->import->di_file), buf_ptr(bare_name),
|
|
c->import->di_file, line,
|
|
debug_size_in_bits,
|
|
debug_align_in_bits,
|
|
di_enumerators, field_count, tag_type_entry->di_type, "");
|
|
|
|
ZigLLVMReplaceTemporary(c->codegen->dbuilder, enum_type->di_type, tag_di_type);
|
|
enum_type->di_type = tag_di_type;
|
|
|
|
return enum_type;
|
|
} else {
|
|
TypeTableEntry *enum_type = get_typedecl_type(c->codegen, buf_ptr(full_type_name), tag_type_entry);
|
|
c->enum_type_table.put(bare_name, enum_type);
|
|
c->decl_table.put(enum_decl, enum_type);
|
|
|
|
// add variables for all the values with enum_type
|
|
for (auto it = enum_def->enumerator_begin(),
|
|
it_end = enum_def->enumerator_end();
|
|
it != it_end; ++it)
|
|
{
|
|
const EnumConstantDecl *enum_const = *it;
|
|
|
|
Buf *enum_val_name = buf_create_from_str(decl_name(enum_const));
|
|
|
|
Tld *tld = create_global_num_lit_ap(c, enum_decl, enum_val_name, enum_const->getInitVal());
|
|
if (!tld)
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
|
|
add_global(c, tld);
|
|
}
|
|
|
|
return enum_type;
|
|
}
|
|
}
|
|
|
|
static void visit_enum_decl(Context *c, const EnumDecl *enum_decl) {
|
|
TypeTableEntry *enum_type = resolve_enum_decl(c, enum_decl);
|
|
|
|
if (enum_type->id == TypeTableEntryIdInvalid)
|
|
return;
|
|
|
|
// make an alias without the "enum_" prefix. this will get emitted at the
|
|
// end if it doesn't conflict with anything else
|
|
bool is_anonymous = (decl_name(enum_decl)[0] == 0);
|
|
if (is_anonymous)
|
|
return;
|
|
|
|
Buf *bare_name = buf_create_from_str(decl_name(enum_decl));
|
|
|
|
if (enum_type->id == TypeTableEntryIdEnum) {
|
|
if (enum_type->data.enumeration.complete) {
|
|
Tld *tld = add_container_tld(c, enum_type);
|
|
add_global_weak_alias(c, bare_name, tld);
|
|
} else {
|
|
TypeTableEntry *typedecl_type = get_typedecl_type(c->codegen, buf_ptr(&enum_type->name),
|
|
c->codegen->builtin_types.entry_u8);
|
|
Tld *tld = add_typedef_tld(c, typedecl_type);
|
|
add_global_weak_alias(c, bare_name, tld);
|
|
}
|
|
} else if (enum_type->id == TypeTableEntryIdTypeDecl) {
|
|
Tld *tld = add_typedef_tld(c, enum_type);
|
|
add_global_weak_alias(c, bare_name, tld);
|
|
} else {
|
|
zig_unreachable();
|
|
}
|
|
}
|
|
|
|
static TypeTableEntry *resolve_record_decl(Context *c, const RecordDecl *record_decl) {
|
|
auto existing_entry = c->decl_table.maybe_get((void*)record_decl);
|
|
if (existing_entry) {
|
|
return existing_entry->value;
|
|
}
|
|
|
|
const char *raw_name = decl_name(record_decl);
|
|
|
|
if (!record_decl->isStruct()) {
|
|
emit_warning(c, record_decl, "skipping record %s, not a struct", raw_name);
|
|
return c->codegen->builtin_types.entry_invalid;
|
|
}
|
|
|
|
Buf *bare_name;
|
|
if (record_decl->isAnonymousStructOrUnion() || raw_name[0] == 0) {
|
|
bare_name = buf_sprintf("anon_$%" PRIu32, get_next_anon_index(c));
|
|
} else {
|
|
bare_name = buf_create_from_str(raw_name);
|
|
}
|
|
|
|
Buf *full_type_name = buf_sprintf("struct_%s", buf_ptr(bare_name));
|
|
|
|
|
|
TypeTableEntry *struct_type = get_partial_container_type(c->codegen, c->import,
|
|
&c->import->decls_scope->base, ContainerKindStruct, c->source_node, buf_ptr(full_type_name));
|
|
|
|
c->struct_type_table.put(bare_name, struct_type);
|
|
c->decl_table.put(record_decl, struct_type);
|
|
|
|
RecordDecl *record_def = record_decl->getDefinition();
|
|
unsigned line = c->source_node ? c->source_node->line : 0;
|
|
if (!record_def) {
|
|
replace_with_fwd_decl(c, struct_type, full_type_name);
|
|
return struct_type;
|
|
}
|
|
|
|
|
|
// count fields and validate
|
|
uint32_t field_count = 0;
|
|
for (auto it = record_def->field_begin(),
|
|
it_end = record_def->field_end();
|
|
it != it_end; ++it, field_count += 1)
|
|
{
|
|
const FieldDecl *field_decl = *it;
|
|
|
|
if (field_decl->isBitField()) {
|
|
emit_warning(c, field_decl, "struct %s demoted to typedef - has bitfield\n", buf_ptr(bare_name));
|
|
replace_with_fwd_decl(c, struct_type, full_type_name);
|
|
return struct_type;
|
|
}
|
|
}
|
|
|
|
struct_type->data.structure.src_field_count = field_count;
|
|
struct_type->data.structure.fields = allocate<TypeStructField>(field_count);
|
|
LLVMTypeRef *element_types = allocate<LLVMTypeRef>(field_count);
|
|
ZigLLVMDIType **di_element_types = allocate<ZigLLVMDIType*>(field_count);
|
|
|
|
// next, populate element_types as its needed for LLVMStructSetBody which is needed for LLVMOffsetOfElement
|
|
uint32_t i = 0;
|
|
for (auto it = record_def->field_begin(),
|
|
it_end = record_def->field_end();
|
|
it != it_end; ++it, i += 1)
|
|
{
|
|
const FieldDecl *field_decl = *it;
|
|
|
|
TypeStructField *type_struct_field = &struct_type->data.structure.fields[i];
|
|
type_struct_field->name = buf_create_from_str(decl_name(field_decl));
|
|
type_struct_field->src_index = i;
|
|
type_struct_field->gen_index = i;
|
|
TypeTableEntry *field_type = resolve_qual_type(c, field_decl->getType(), field_decl);
|
|
type_struct_field->type_entry = field_type;
|
|
|
|
if (field_type->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, field_decl, "struct %s demoted to typedef - unresolved type\n", buf_ptr(bare_name));
|
|
replace_with_fwd_decl(c, struct_type, full_type_name);
|
|
return struct_type;
|
|
}
|
|
|
|
element_types[i] = field_type->type_ref;
|
|
assert(element_types[i]);
|
|
}
|
|
|
|
LLVMStructSetBody(struct_type->type_ref, element_types, field_count, false);
|
|
|
|
// finally populate debug info
|
|
i = 0;
|
|
for (auto it = record_def->field_begin(),
|
|
it_end = record_def->field_end();
|
|
it != it_end; ++it, i += 1)
|
|
{
|
|
TypeStructField *type_struct_field = &struct_type->data.structure.fields[i];
|
|
TypeTableEntry *field_type = type_struct_field->type_entry;
|
|
|
|
uint64_t debug_size_in_bits = 8*LLVMStoreSizeOfType(c->codegen->target_data_ref, field_type->type_ref);
|
|
uint64_t debug_align_in_bits = 8*LLVMABISizeOfType(c->codegen->target_data_ref, field_type->type_ref);
|
|
uint64_t debug_offset_in_bits = 8*LLVMOffsetOfElement(c->codegen->target_data_ref, struct_type->type_ref, i);
|
|
di_element_types[i] = ZigLLVMCreateDebugMemberType(c->codegen->dbuilder,
|
|
ZigLLVMTypeToScope(struct_type->di_type), buf_ptr(type_struct_field->name),
|
|
c->import->di_file, line + 1,
|
|
debug_size_in_bits,
|
|
debug_align_in_bits,
|
|
debug_offset_in_bits,
|
|
0, field_type->di_type);
|
|
|
|
assert(di_element_types[i]);
|
|
|
|
}
|
|
struct_type->data.structure.embedded_in_current = false;
|
|
|
|
struct_type->data.structure.gen_field_count = field_count;
|
|
struct_type->data.structure.complete = true;
|
|
|
|
uint64_t debug_size_in_bits = 8*LLVMStoreSizeOfType(c->codegen->target_data_ref, struct_type->type_ref);
|
|
uint64_t debug_align_in_bits = 8*LLVMABISizeOfType(c->codegen->target_data_ref, struct_type->type_ref);
|
|
ZigLLVMDIType *replacement_di_type = ZigLLVMCreateDebugStructType(c->codegen->dbuilder,
|
|
ZigLLVMFileToScope(c->import->di_file),
|
|
buf_ptr(full_type_name), c->import->di_file, line + 1,
|
|
debug_size_in_bits,
|
|
debug_align_in_bits,
|
|
0,
|
|
nullptr, di_element_types, field_count, 0, nullptr, "");
|
|
|
|
ZigLLVMReplaceTemporary(c->codegen->dbuilder, struct_type->di_type, replacement_di_type);
|
|
struct_type->di_type = replacement_di_type;
|
|
|
|
return struct_type;
|
|
}
|
|
|
|
static void visit_record_decl(Context *c, const RecordDecl *record_decl) {
|
|
TypeTableEntry *struct_type = resolve_record_decl(c, record_decl);
|
|
|
|
if (struct_type->id == TypeTableEntryIdInvalid) {
|
|
return;
|
|
}
|
|
|
|
assert(struct_type->id == TypeTableEntryIdStruct);
|
|
|
|
bool is_anonymous = (record_decl->isAnonymousStructOrUnion() || decl_name(record_decl)[0] == 0);
|
|
if (is_anonymous)
|
|
return;
|
|
|
|
Buf *bare_name = buf_create_from_str(decl_name(record_decl));
|
|
|
|
if (struct_type->data.structure.complete) {
|
|
Tld *tld = add_container_tld(c, struct_type);
|
|
add_global_weak_alias(c, bare_name, tld);
|
|
} else {
|
|
TypeTableEntry *typedecl_type = get_typedecl_type(c->codegen, buf_ptr(&struct_type->name),
|
|
c->codegen->builtin_types.entry_u8);
|
|
Tld *tld = add_typedef_tld(c, typedecl_type);
|
|
add_global_weak_alias(c, bare_name, tld);
|
|
}
|
|
}
|
|
|
|
static void visit_var_decl(Context *c, const VarDecl *var_decl) {
|
|
Buf *name = buf_create_from_str(decl_name(var_decl));
|
|
|
|
switch (var_decl->getTLSKind()) {
|
|
case VarDecl::TLS_None:
|
|
break;
|
|
case VarDecl::TLS_Static:
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - static thread local storage\n", buf_ptr(name));
|
|
return;
|
|
case VarDecl::TLS_Dynamic:
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - dynamic thread local storage\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
|
|
QualType qt = var_decl->getType();
|
|
TypeTableEntry *var_type = resolve_qual_type(c, qt, var_decl);
|
|
if (var_type->id == TypeTableEntryIdInvalid) {
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - unresolved type\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
|
|
bool is_extern = var_decl->hasExternalStorage();
|
|
bool is_static = var_decl->isFileVarDecl();
|
|
bool is_const = qt.isConstQualified();
|
|
|
|
if (is_static && !is_extern) {
|
|
if (!var_decl->hasInit()) {
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - no initializer\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
APValue *ap_value = var_decl->evaluateValue();
|
|
if (!ap_value) {
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - unable to evaluate initializer\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
ConstExprValue *init_value = nullptr;
|
|
switch (ap_value->getKind()) {
|
|
case APValue::Int:
|
|
{
|
|
TypeTableEntry *canon_type = get_underlying_type(var_type);
|
|
if (canon_type->id != TypeTableEntryIdInt) {
|
|
emit_warning(c, var_decl,
|
|
"ignoring variable '%s' - int initializer for non int type\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
init_value = create_const_num_lit_ap(c, var_decl, ap_value->getInt());
|
|
if (!init_value)
|
|
return;
|
|
|
|
break;
|
|
}
|
|
case APValue::Uninitialized:
|
|
case APValue::Float:
|
|
case APValue::ComplexInt:
|
|
case APValue::ComplexFloat:
|
|
case APValue::LValue:
|
|
case APValue::Vector:
|
|
case APValue::Array:
|
|
case APValue::Struct:
|
|
case APValue::Union:
|
|
case APValue::MemberPointer:
|
|
case APValue::AddrLabelDiff:
|
|
emit_warning(c, var_decl,
|
|
"ignoring variable '%s' - unrecognized initializer value kind\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
|
|
TldVar *tld_var = create_global_var(c, name, var_type, init_value, true);
|
|
add_global(c, &tld_var->base);
|
|
return;
|
|
}
|
|
|
|
if (is_extern) {
|
|
TldVar *tld_var = create_global_var(c, name, var_type, nullptr, is_const);
|
|
tld_var->var->is_extern = true;
|
|
add_global(c, &tld_var->base);
|
|
return;
|
|
}
|
|
|
|
emit_warning(c, var_decl, "ignoring variable '%s' - non-extern, non-static variable\n", buf_ptr(name));
|
|
return;
|
|
}
|
|
|
|
static bool decl_visitor(void *context, const Decl *decl) {
|
|
Context *c = (Context*)context;
|
|
|
|
switch (decl->getKind()) {
|
|
case Decl::Function:
|
|
visit_fn_decl(c, static_cast<const FunctionDecl*>(decl));
|
|
break;
|
|
case Decl::Typedef:
|
|
visit_typedef_decl(c, static_cast<const TypedefNameDecl *>(decl));
|
|
break;
|
|
case Decl::Enum:
|
|
visit_enum_decl(c, static_cast<const EnumDecl *>(decl));
|
|
break;
|
|
case Decl::Record:
|
|
visit_record_decl(c, static_cast<const RecordDecl *>(decl));
|
|
break;
|
|
case Decl::Var:
|
|
visit_var_decl(c, static_cast<const VarDecl *>(decl));
|
|
break;
|
|
default:
|
|
emit_warning(c, decl, "ignoring %s decl\n", decl->getDeclKindName());
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool name_exists(Context *c, Buf *name) {
|
|
if (c->global_type_table.maybe_get(name)) {
|
|
return true;
|
|
}
|
|
if (get_global(c, name)) {
|
|
return true;
|
|
}
|
|
if (c->macro_table.maybe_get(name)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void render_aliases(Context *c) {
|
|
for (size_t i = 0; i < c->aliases.length; i += 1) {
|
|
Alias *alias = &c->aliases.at(i);
|
|
if (name_exists(c, alias->name))
|
|
continue;
|
|
|
|
add_global_alias(c, alias->name, alias->tld);
|
|
}
|
|
}
|
|
|
|
static void render_macros(Context *c) {
|
|
auto it = c->macro_table.entry_iterator();
|
|
for (;;) {
|
|
auto *entry = it.next();
|
|
if (!entry)
|
|
break;
|
|
|
|
Tld *var_tld = entry->value;
|
|
add_global(c, var_tld);
|
|
}
|
|
}
|
|
|
|
static void process_macro(Context *c, CTokenize *ctok, Buf *name, const char *char_ptr) {
|
|
tokenize_c_macro(ctok, (const uint8_t *)char_ptr);
|
|
|
|
if (ctok->error) {
|
|
return;
|
|
}
|
|
|
|
bool negate = false;
|
|
for (size_t i = 0; i < ctok->tokens.length; i += 1) {
|
|
bool is_first = (i == 0);
|
|
bool is_last = (i == ctok->tokens.length - 1);
|
|
CTok *tok = &ctok->tokens.at(i);
|
|
switch (tok->id) {
|
|
case CTokIdCharLit:
|
|
if (is_last && is_first) {
|
|
Tld *tld = create_global_char_lit_var(c, name, tok->data.char_lit);
|
|
c->macro_table.put(name, tld);
|
|
}
|
|
return;
|
|
case CTokIdStrLit:
|
|
if (is_last && is_first) {
|
|
Tld *tld = create_global_str_lit_var(c, name, buf_create_from_buf(&tok->data.str_lit));
|
|
c->macro_table.put(name, tld);
|
|
}
|
|
return;
|
|
case CTokIdNumLitInt:
|
|
if (is_last) {
|
|
Tld *tld = create_global_num_lit_unsigned_negative(c, name, tok->data.num_lit_int, negate);
|
|
c->macro_table.put(name, tld);
|
|
}
|
|
return;
|
|
case CTokIdNumLitFloat:
|
|
if (is_last) {
|
|
double value = negate ? -tok->data.num_lit_float : tok->data.num_lit_float;
|
|
Tld *tld = create_global_num_lit_float(c, name, value);
|
|
c->macro_table.put(name, tld);
|
|
}
|
|
return;
|
|
case CTokIdSymbol:
|
|
if (is_last && is_first) {
|
|
// if it equals itself, ignore. for example, from stdio.h:
|
|
// #define stdin stdin
|
|
Buf *symbol_name = buf_create_from_buf(&tok->data.symbol);
|
|
if (buf_eql_buf(name, symbol_name)) {
|
|
return;
|
|
}
|
|
c->macro_symbols.append({name, symbol_name});
|
|
return;
|
|
}
|
|
case CTokIdMinus:
|
|
if (is_first) {
|
|
negate = true;
|
|
break;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void process_symbol_macros(Context *c) {
|
|
for (size_t i = 0; i < c->macro_symbols.length; i += 1) {
|
|
MacroSymbol ms = c->macro_symbols.at(i);
|
|
|
|
// If this macro aliases another top level declaration, we can make that happen by
|
|
// putting another entry in the decl table pointing to the same top level decl.
|
|
Tld *existing_tld = get_global(c, ms.value);
|
|
if (!existing_tld)
|
|
continue;
|
|
|
|
// If a macro aliases a global variable which is a function pointer, we conclude that
|
|
// the macro is intended to represent a function that assumes the function pointer
|
|
// variable is non-null and calls it.
|
|
if (existing_tld->id == TldIdVar) {
|
|
TldVar *tld_var = (TldVar *)existing_tld;
|
|
TypeTableEntry *var_type = tld_var->var->type;
|
|
if (var_type->id == TypeTableEntryIdMaybe && !tld_var->var->src_is_const) {
|
|
TypeTableEntry *child_type = var_type->data.maybe.child_type;
|
|
if (child_type->id == TypeTableEntryIdFn) {
|
|
zig_panic("TODO");
|
|
//Tld *fn_tld = create_inline_fn_alias(c, ms.name, tld_var->var);
|
|
//c->macro_table.put(ms.name, fn_tld);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
add_global_alias(c, ms.value, existing_tld);
|
|
}
|
|
}
|
|
|
|
static void process_preprocessor_entities(Context *c, ASTUnit &unit) {
|
|
CTokenize ctok = {{0}};
|
|
|
|
for (PreprocessedEntity *entity : unit.getLocalPreprocessingEntities()) {
|
|
switch (entity->getKind()) {
|
|
case PreprocessedEntity::InvalidKind:
|
|
case PreprocessedEntity::InclusionDirectiveKind:
|
|
case PreprocessedEntity::MacroExpansionKind:
|
|
continue;
|
|
case PreprocessedEntity::MacroDefinitionKind:
|
|
{
|
|
MacroDefinitionRecord *macro = static_cast<MacroDefinitionRecord *>(entity);
|
|
const char *raw_name = macro->getName()->getNameStart();
|
|
SourceRange range = macro->getSourceRange();
|
|
SourceLocation begin_loc = range.getBegin();
|
|
SourceLocation end_loc = range.getEnd();
|
|
|
|
if (begin_loc == end_loc) {
|
|
// this means it is a macro without a value
|
|
// we don't care about such things
|
|
continue;
|
|
}
|
|
Buf *name = buf_create_from_str(raw_name);
|
|
if (name_exists(c, name)) {
|
|
continue;
|
|
}
|
|
|
|
const char *end_c = c->source_manager->getCharacterData(end_loc);
|
|
process_macro(c, &ctok, name, end_c);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int parse_h_buf(ImportTableEntry *import, ZigList<ErrorMsg *> *errors, Buf *source,
|
|
CodeGen *codegen, AstNode *source_node)
|
|
{
|
|
int err;
|
|
Buf tmp_file_path = BUF_INIT;
|
|
if ((err = os_buf_to_tmp_file(source, buf_create_from_str(".h"), &tmp_file_path))) {
|
|
return err;
|
|
}
|
|
|
|
err = parse_h_file(import, errors, buf_ptr(&tmp_file_path), codegen, source_node);
|
|
|
|
os_delete_file(&tmp_file_path);
|
|
|
|
return err;
|
|
}
|
|
|
|
int parse_h_file(ImportTableEntry *import, ZigList<ErrorMsg *> *errors, const char *target_file,
|
|
CodeGen *codegen, AstNode *source_node)
|
|
{
|
|
Context context = {0};
|
|
Context *c = &context;
|
|
c->warnings_on = codegen->verbose;
|
|
c->import = import;
|
|
c->errors = errors;
|
|
c->visib_mod = VisibModPub;
|
|
c->global_type_table.init(8);
|
|
c->enum_type_table.init(8);
|
|
c->struct_type_table.init(8);
|
|
c->decl_table.init(8);
|
|
c->macro_table.init(8);
|
|
c->codegen = codegen;
|
|
c->source_node = source_node;
|
|
|
|
ZigList<const char *> clang_argv = {0};
|
|
|
|
clang_argv.append("-x");
|
|
clang_argv.append("c");
|
|
|
|
if (c->codegen->is_native_target) {
|
|
char *ZIG_PARSEH_CFLAGS = getenv("ZIG_NATIVE_PARSEH_CFLAGS");
|
|
if (ZIG_PARSEH_CFLAGS) {
|
|
Buf tmp_buf = BUF_INIT;
|
|
char *start = ZIG_PARSEH_CFLAGS;
|
|
char *space = strstr(start, " ");
|
|
while (space) {
|
|
if (space - start > 0) {
|
|
buf_init_from_mem(&tmp_buf, start, space - start);
|
|
clang_argv.append(buf_ptr(buf_create_from_buf(&tmp_buf)));
|
|
}
|
|
start = space + 1;
|
|
space = strstr(start, " ");
|
|
}
|
|
buf_init_from_str(&tmp_buf, start);
|
|
clang_argv.append(buf_ptr(buf_create_from_buf(&tmp_buf)));
|
|
}
|
|
}
|
|
|
|
clang_argv.append("-isystem");
|
|
clang_argv.append(ZIG_HEADERS_DIR);
|
|
|
|
clang_argv.append("-isystem");
|
|
clang_argv.append(buf_ptr(codegen->libc_include_dir));
|
|
|
|
for (size_t i = 0; i < codegen->clang_argv_len; i += 1) {
|
|
clang_argv.append(codegen->clang_argv[i]);
|
|
}
|
|
|
|
// we don't need spell checking and it slows things down
|
|
clang_argv.append("-fno-spell-checking");
|
|
|
|
// this gives us access to preprocessing entities, presumably at
|
|
// the cost of performance
|
|
clang_argv.append("-Xclang");
|
|
clang_argv.append("-detailed-preprocessing-record");
|
|
|
|
if (!c->codegen->is_native_target) {
|
|
clang_argv.append("-target");
|
|
clang_argv.append(buf_ptr(&c->codegen->triple_str));
|
|
}
|
|
|
|
clang_argv.append(target_file);
|
|
|
|
// to make the [start...end] argument work
|
|
clang_argv.append(nullptr);
|
|
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> diags(CompilerInstance::createDiagnostics(new DiagnosticOptions));
|
|
|
|
std::shared_ptr<PCHContainerOperations> pch_container_ops = std::make_shared<PCHContainerOperations>();
|
|
|
|
bool skip_function_bodies = true;
|
|
bool only_local_decls = true;
|
|
bool capture_diagnostics = true;
|
|
bool user_files_are_volatile = true;
|
|
bool allow_pch_with_compiler_errors = false;
|
|
const char *resources_path = ZIG_HEADERS_DIR;
|
|
std::unique_ptr<ASTUnit> err_unit;
|
|
std::unique_ptr<ASTUnit> ast_unit(ASTUnit::LoadFromCommandLine(
|
|
&clang_argv.at(0), &clang_argv.last(),
|
|
pch_container_ops, diags, resources_path,
|
|
only_local_decls, capture_diagnostics, None, true, 0, TU_Complete,
|
|
false, false, allow_pch_with_compiler_errors, skip_function_bodies,
|
|
user_files_are_volatile, false, None, &err_unit));
|
|
|
|
|
|
// Early failures in LoadFromCommandLine may return with ErrUnit unset.
|
|
if (!ast_unit && !err_unit) {
|
|
return ErrorFileSystem;
|
|
}
|
|
|
|
if (diags->getClient()->getNumErrors() > 0) {
|
|
if (ast_unit) {
|
|
err_unit = std::move(ast_unit);
|
|
}
|
|
|
|
for (ASTUnit::stored_diag_iterator it = err_unit->stored_diag_begin(),
|
|
it_end = err_unit->stored_diag_end();
|
|
it != it_end; ++it)
|
|
{
|
|
switch (it->getLevel()) {
|
|
case DiagnosticsEngine::Ignored:
|
|
case DiagnosticsEngine::Note:
|
|
case DiagnosticsEngine::Remark:
|
|
case DiagnosticsEngine::Warning:
|
|
continue;
|
|
case DiagnosticsEngine::Error:
|
|
case DiagnosticsEngine::Fatal:
|
|
break;
|
|
}
|
|
StringRef msg_str_ref = it->getMessage();
|
|
FullSourceLoc fsl = it->getLocation();
|
|
FileID file_id = fsl.getFileID();
|
|
StringRef filename = fsl.getManager().getFilename(fsl);
|
|
unsigned line = fsl.getSpellingLineNumber() - 1;
|
|
unsigned column = fsl.getSpellingColumnNumber() - 1;
|
|
unsigned offset = fsl.getManager().getFileOffset(fsl);
|
|
const char *source = (const char *)fsl.getManager().getBufferData(file_id).bytes_begin();
|
|
Buf *msg = buf_create_from_str((const char *)msg_str_ref.bytes_begin());
|
|
Buf *path;
|
|
if (filename.empty()) {
|
|
path = buf_alloc();
|
|
} else {
|
|
path = buf_create_from_mem((const char *)filename.bytes_begin(), filename.size());
|
|
}
|
|
|
|
ErrorMsg *err_msg = err_msg_create_with_offset(path, line, column, offset, source, msg);
|
|
|
|
c->errors->append(err_msg);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
c->source_manager = &ast_unit->getSourceManager();
|
|
|
|
ast_unit->visitLocalTopLevelDecls(c, decl_visitor);
|
|
|
|
process_preprocessor_entities(c, *ast_unit);
|
|
|
|
process_symbol_macros(c);
|
|
|
|
render_macros(c);
|
|
render_aliases(c);
|
|
|
|
return 0;
|
|
}
|