1// Copyright 2020 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "include/cppgc/internal/name-trait.h"
6
7#include <stdio.h>
8
9#include "src/base/logging.h"
10#include "src/base/macros.h"
11
12namespace cppgc {
13
14// static
15constexpr const char NameProvider::kHiddenName[];
16
17// static
18constexpr const char NameProvider::kNoNameDeducible[];
19
20namespace internal {
21
22// static
23HeapObjectName NameTraitBase::GetNameFromTypeSignature(const char* signature) {
24  // Parsing string of structure:
25  //    static HeapObjectName NameTrait<int>::GetNameFor(...) [T = int]
26  if (!signature) return {NameProvider::kNoNameDeducible, true};
27
28  const std::string raw(signature);
29  const auto start_pos = raw.rfind("T = ") + 4;
30  DCHECK_NE(std::string::npos, start_pos);
31  const auto len = raw.length() - start_pos - 1;
32  const std::string name = raw.substr(start_pos, len).c_str();
33  char* name_buffer = new char[name.length() + 1];
34  int written = snprintf(name_buffer, name.length() + 1, "%s", name.c_str());
35  DCHECK_EQ(static_cast<size_t>(written), name.length());
36  USE(written);
37  return {name_buffer, false};
38}
39
40}  // namespace internal
41}  // namespace cppgc
42