// A method is uniquely located by its DexFile and the method_ids_ table index into that DexFile class MethodReference : public DexFileReference { public:
MethodReference(const DexFile* file, uint32_t index) : DexFileReference(file, index) {}
std::string PrettyMethod(bool with_signature = true) const { return dex_file->PrettyMethod(index, with_signature);
} const dex::MethodId& GetMethodId() const { return dex_file->GetMethodId(index);
} const art::ProtoReference GetProtoReference() const { return ProtoReference(dex_file, GetMethodId().proto_idx_);
}
};
// Compare the actual referenced method signatures. Used for method reference deduplication. struct MethodReferenceValueComparator { booloperator()(MethodReference mr1, MethodReference mr2) const { if (mr1.dex_file == mr2.dex_file) {
DCHECK_EQ(mr1.index < mr2.index, SlowCompare(mr1, mr2)); return mr1.index < mr2.index;
} else { return SlowCompare(mr1, mr2);
}
}
bool SlowCompare(MethodReference mr1, MethodReference mr2) const { // The order is the same as for method ids in a single dex file. // Compare the class descriptors first. const dex::MethodId& mid1 = mr1.GetMethodId(); const dex::MethodId& mid2 = mr2.GetMethodId(); int descriptor_diff = DexFile::CompareDescriptors(
mr1.dex_file->GetTypeDescriptorView(mid1.class_idx_),
mr2.dex_file->GetTypeDescriptorView(mid2.class_idx_)); if (descriptor_diff != 0) { return descriptor_diff < 0;
} // Compare names second. int name_diff = DexFile::CompareMemberNames(mr1.dex_file->GetMethodNameView(mid1),
mr2.dex_file->GetMethodNameView(mid2)); if (name_diff != 0) { return name_diff < 0;
} // Then compare protos. return ProtoReferenceValueComparator()(mr1.GetProtoReference(), mr2.GetProtoReference());
}
};
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