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// Copyright 2015 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.
#ifndef V8_TYPE_HINTS_H_
#define V8_TYPE_HINTS_H_
#include "src/base/flags.h"
#include "src/utils.h"
namespace v8 {
namespace internal {
// Type hints for an binary operation.
enum class BinaryOperationHint : uint8_t {
kNone,
kSignedSmall,
kSignedSmallInputs,
kSigned32,
kNumber,
kNumberOrOddball,
kString,
kBigInt,
kAny
};
inline size_t hash_value(BinaryOperationHint hint) {
return static_cast<unsigned>(hint);
}
std::ostream& operator<<(std::ostream&, BinaryOperationHint);
// Type hints for an compare operation.
enum class CompareOperationHint : uint8_t {
kNone,
kSignedSmall,
kNumber,
kNumberOrOddball,
kInternalizedString,
kString,
kSymbol,
kBigInt,
kReceiver,
kAny
};
inline size_t hash_value(CompareOperationHint hint) {
return static_cast<unsigned>(hint);
}
std::ostream& operator<<(std::ostream&, CompareOperationHint);
// Type hints for for..in statements.
enum class ForInHint : uint8_t {
kNone,
kEnumCacheKeysAndIndices,
kEnumCacheKeys,
kAny
};
std::ostream& operator<<(std::ostream&, ForInHint);
enum StringAddFlags {
// Omit both parameter checks.
STRING_ADD_CHECK_NONE,
// Convert parameters when check fails (instead of throwing an exception).
STRING_ADD_CONVERT_LEFT,
STRING_ADD_CONVERT_RIGHT,
};
std::ostream& operator<<(std::ostream& os, const StringAddFlags& flags);
} // namespace internal
} // namespace v8
#endif // V8_TYPE_HINTS_H_
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