method_helper-inl.h revision 4ef12f5b0e26c6016c87866f6a33da5ed8e98d74 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_METHOD_HELPER_INL_H_
18#define ART_RUNTIME_METHOD_HELPER_INL_H_
19
20#include "method_helper.h"
21
22#include "class_linker.h"
23#include "mirror/object_array.h"
24#include "runtime.h"
25#include "thread-inl.h"
26
27namespace art {
28
29inline mirror::Class* MethodHelper::GetClassFromTypeIdx(uint16_t type_idx, bool resolve) {
30  mirror::ArtMethod* method = GetMethod();
31  mirror::Class* type = method->GetDexCacheResolvedType(type_idx);
32  if (type == nullptr && resolve) {
33    type = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, method);
34    CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
35  }
36  return type;
37}
38
39inline mirror::Class* MethodHelper::GetReturnType(bool resolve) {
40  mirror::ArtMethod* method = GetMethod();
41  const DexFile* dex_file = method->GetDexFile();
42  const DexFile::MethodId& method_id = dex_file->GetMethodId(method->GetDexMethodIndex());
43  const DexFile::ProtoId& proto_id = dex_file->GetMethodPrototype(method_id);
44  uint16_t return_type_idx = proto_id.return_type_idx_;
45  return GetClassFromTypeIdx(return_type_idx, resolve);
46}
47
48inline mirror::String* MethodHelper::ResolveString(uint32_t string_idx) {
49  mirror::ArtMethod* method = GetMethod();
50  mirror::String* s = method->GetDexCacheStrings()->Get(string_idx);
51  if (UNLIKELY(s == nullptr)) {
52    StackHandleScope<1> hs(Thread::Current());
53    Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache()));
54    s = Runtime::Current()->GetClassLinker()->ResolveString(*method->GetDexFile(), string_idx,
55                                                            dex_cache);
56  }
57  return s;
58}
59
60}  // namespace art
61
62#endif  // ART_RUNTIME_METHOD_HELPER_INL_H_
63