v8/src/property.cc

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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/property.h"
#include "src/handles-inl.h"
#include "src/ostreams.h"
namespace v8 {
namespace internal {
std::ostream& operator<<(std::ostream& os,
const PropertyAttributes& attributes) {
os << "[";
os << (((attributes & READ_ONLY) == 0) ? "W" : "_"); // writable
os << (((attributes & DONT_ENUM) == 0) ? "E" : "_"); // enumerable
os << (((attributes & DONT_DELETE) == 0) ? "C" : "_"); // configurable
os << "]";
return os;
}
struct FastPropertyDetails {
explicit FastPropertyDetails(const PropertyDetails& v) : details(v) {}
const PropertyDetails details;
};
// Outputs PropertyDetails as a dictionary details.
std::ostream& operator<<(std::ostream& os, const PropertyDetails& details) {
os << "(";
if (details.location() == kDescriptor) {
os << "immutable ";
}
os << (details.kind() == kData ? "data" : "accessor");
return os << ", dictionary_index: " << details.dictionary_index()
<< ", attrs: " << details.attributes() << ")";
}
// Outputs PropertyDetails as a descriptor array details.
std::ostream& operator<<(std::ostream& os,
const FastPropertyDetails& details_fast) {
const PropertyDetails& details = details_fast.details;
os << "(";
if (details.location() == kDescriptor) {
os << "immutable ";
}
os << (details.kind() == kData ? "data" : "accessor");
os << ": " << details.representation().Mnemonic();
if (details.location() == kField) {
os << ", field_index: " << details.field_index();
}
return os << ", p: " << details.pointer()
<< ", attrs: " << details.attributes() << ")";
}
#ifdef OBJECT_PRINT
void PropertyDetails::Print(bool dictionary_mode) {
OFStream os(stdout);
if (dictionary_mode) {
os << *this;
} else {
os << FastPropertyDetails(*this);
}
os << "\n" << std::flush;
}
#endif
std::ostream& operator<<(std::ostream& os, const Descriptor& d) {
Object* value = *d.GetValue();
os << "Descriptor " << Brief(*d.GetKey()) << " @ " << Brief(value) << " ";
if (value->IsAccessorPair()) {
AccessorPair* pair = AccessorPair::cast(value);
os << "(get: " << Brief(pair->getter())
<< ", set: " << Brief(pair->setter()) << ") ";
}
os << FastPropertyDetails(d.GetDetails());
return os;
}
} } // namespace v8::internal