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      1 /*
      2  * Copyright (C) 2016 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_DEX_DEX_FILE_ANNOTATIONS_H_
     18 #define ART_RUNTIME_DEX_DEX_FILE_ANNOTATIONS_H_
     19 
     20 #include "dex/dex_file.h"
     21 
     22 #include "handle.h"
     23 #include "mirror/dex_cache.h"
     24 #include "mirror/object_array.h"
     25 
     26 namespace art {
     27 
     28 namespace mirror {
     29 class ClassLoader;
     30 }  // namespace mirror
     31 class ArtField;
     32 class ArtMethod;
     33 class ClassLinker;
     34 
     35 namespace annotations {
     36 
     37 // Field annotations.
     38 mirror::Object* GetAnnotationForField(ArtField* field, Handle<mirror::Class> annotation_class)
     39     REQUIRES_SHARED(Locks::mutator_lock_);
     40 mirror::ObjectArray<mirror::Object>* GetAnnotationsForField(ArtField* field)
     41     REQUIRES_SHARED(Locks::mutator_lock_);
     42 mirror::ObjectArray<mirror::String>* GetSignatureAnnotationForField(ArtField* field)
     43     REQUIRES_SHARED(Locks::mutator_lock_);
     44 bool IsFieldAnnotationPresent(ArtField* field, Handle<mirror::Class> annotation_class)
     45     REQUIRES_SHARED(Locks::mutator_lock_);
     46 
     47 // Method annotations.
     48 mirror::Object* GetAnnotationDefaultValue(ArtMethod* method)
     49     REQUIRES_SHARED(Locks::mutator_lock_);
     50 mirror::Object* GetAnnotationForMethod(ArtMethod* method, Handle<mirror::Class> annotation_class)
     51     REQUIRES_SHARED(Locks::mutator_lock_);
     52 mirror::ObjectArray<mirror::Object>* GetAnnotationsForMethod(ArtMethod* method)
     53     REQUIRES_SHARED(Locks::mutator_lock_);
     54 mirror::ObjectArray<mirror::Class>* GetExceptionTypesForMethod(ArtMethod* method)
     55     REQUIRES_SHARED(Locks::mutator_lock_);
     56 mirror::ObjectArray<mirror::Object>* GetParameterAnnotations(ArtMethod* method)
     57     REQUIRES_SHARED(Locks::mutator_lock_);
     58 uint32_t GetNumberOfAnnotatedMethodParameters(ArtMethod* method)
     59     REQUIRES_SHARED(Locks::mutator_lock_);
     60 mirror::Object* GetAnnotationForMethodParameter(ArtMethod* method,
     61                                                 uint32_t parameter_idx,
     62                                                 Handle<mirror::Class> annotation_class)
     63     REQUIRES_SHARED(Locks::mutator_lock_);
     64 bool GetParametersMetadataForMethod(ArtMethod* method,
     65                                     MutableHandle<mirror::ObjectArray<mirror::String>>* names,
     66                                     MutableHandle<mirror::IntArray>* access_flags)
     67     REQUIRES_SHARED(Locks::mutator_lock_);
     68 mirror::ObjectArray<mirror::String>* GetSignatureAnnotationForMethod(ArtMethod* method)
     69     REQUIRES_SHARED(Locks::mutator_lock_);
     70 // Check whether `method` is annotated with `annotation_class`.
     71 // If `lookup_in_resolved_boot_classes` is true, look up any of the
     72 // method's annotations' classes in the bootstrap class loader's
     73 // resolved types; if it is false (default value), resolve them as a
     74 // side effect.
     75 bool IsMethodAnnotationPresent(ArtMethod* method,
     76                                Handle<mirror::Class> annotation_class,
     77                                uint32_t visibility = DexFile::kDexVisibilityRuntime)
     78     REQUIRES_SHARED(Locks::mutator_lock_);
     79 // Check whether a method from the `dex_file` with the given `method_index`
     80 // is annotated with @dalvik.annotation.optimization.FastNative or
     81 // @dalvik.annotation.optimization.CriticalNative with build visibility.
     82 // If yes, return the associated access flags, i.e. kAccFastNative or kAccCriticalNative.
     83 uint32_t GetNativeMethodAnnotationAccessFlags(const DexFile& dex_file,
     84                                               const DexFile::ClassDef& class_def,
     85                                               uint32_t method_index);
     86 
     87 // Class annotations.
     88 mirror::Object* GetAnnotationForClass(Handle<mirror::Class> klass,
     89                                       Handle<mirror::Class> annotation_class)
     90     REQUIRES_SHARED(Locks::mutator_lock_);
     91 mirror::ObjectArray<mirror::Object>* GetAnnotationsForClass(Handle<mirror::Class> klass)
     92     REQUIRES_SHARED(Locks::mutator_lock_);
     93 mirror::ObjectArray<mirror::Class>* GetDeclaredClasses(Handle<mirror::Class> klass)
     94     REQUIRES_SHARED(Locks::mutator_lock_);
     95 mirror::Class* GetDeclaringClass(Handle<mirror::Class> klass)
     96     REQUIRES_SHARED(Locks::mutator_lock_);
     97 mirror::Class* GetEnclosingClass(Handle<mirror::Class> klass)
     98     REQUIRES_SHARED(Locks::mutator_lock_);
     99 mirror::Object* GetEnclosingMethod(Handle<mirror::Class> klass)
    100     REQUIRES_SHARED(Locks::mutator_lock_);
    101 bool GetInnerClass(Handle<mirror::Class> klass, mirror::String** name)
    102     REQUIRES_SHARED(Locks::mutator_lock_);
    103 bool GetInnerClassFlags(Handle<mirror::Class> klass, uint32_t* flags)
    104     REQUIRES_SHARED(Locks::mutator_lock_);
    105 mirror::ObjectArray<mirror::String>* GetSignatureAnnotationForClass(Handle<mirror::Class> klass)
    106     REQUIRES_SHARED(Locks::mutator_lock_);
    107 const char* GetSourceDebugExtension(Handle<mirror::Class> klass)
    108     REQUIRES_SHARED(Locks::mutator_lock_);
    109 bool IsClassAnnotationPresent(Handle<mirror::Class> klass,
    110                               Handle<mirror::Class> annotation_class)
    111     REQUIRES_SHARED(Locks::mutator_lock_);
    112 
    113 // Map back from a PC to the line number in a method.
    114 int32_t GetLineNumFromPC(const DexFile* dex_file, ArtMethod* method, uint32_t rel_pc)
    115     REQUIRES_SHARED(Locks::mutator_lock_);
    116 
    117 // Annotations iterator.
    118 class RuntimeEncodedStaticFieldValueIterator : public EncodedStaticFieldValueIterator {
    119  public:
    120   // A constructor meant to be called from runtime code.
    121   RuntimeEncodedStaticFieldValueIterator(Handle<mirror::DexCache> dex_cache,
    122                                          Handle<mirror::ClassLoader> class_loader,
    123                                          ClassLinker* linker,
    124                                          const DexFile::ClassDef& class_def)
    125       REQUIRES_SHARED(Locks::mutator_lock_)
    126       : EncodedStaticFieldValueIterator(*dex_cache->GetDexFile(), class_def),
    127         dex_cache_(dex_cache),
    128         class_loader_(class_loader),
    129         linker_(linker) {
    130   }
    131 
    132   template<bool kTransactionActive>
    133   void ReadValueToField(ArtField* field) const REQUIRES_SHARED(Locks::mutator_lock_);
    134 
    135  private:
    136   const Handle<mirror::DexCache> dex_cache_;  // Dex cache to resolve literal objects.
    137   const Handle<mirror::ClassLoader> class_loader_;  // ClassLoader to resolve types.
    138   ClassLinker* const linker_;  // Linker to resolve literal objects.
    139   DISALLOW_IMPLICIT_CONSTRUCTORS(RuntimeEncodedStaticFieldValueIterator);
    140 };
    141 
    142 }  // namespace annotations
    143 
    144 }  // namespace art
    145 
    146 #endif  // ART_RUNTIME_DEX_DEX_FILE_ANNOTATIONS_H_
    147