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// Copyright 2017 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_OBJECTS_REGEXP_MATCH_INFO_H_
#define V8_OBJECTS_REGEXP_MATCH_INFO_H_
#include "src/base/compiler-specific.h"
#include "src/objects/fixed-array.h"
#include "src/objects/objects.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
class Object;
class String;
// The property RegExpMatchInfo includes the matchIndices
// array of the last successful regexp match (an array of start/end index
// pairs for the match and all the captured substrings), the invariant is
// that there are at least two capture indices. The array also contains
// the subject string for the last successful match.
// After creation the result must be treated as a FixedArray in all regards.
class V8_EXPORT_PRIVATE RegExpMatchInfo : NON_EXPORTED_BASE(public FixedArray) {
public:
// Returns the number of captures, which is defined as the length of the
// matchIndices objects of the last match. matchIndices contains two indices
// for each capture (including the match itself), i.e. 2 * #captures + 2.
inline int NumberOfCaptureRegisters();
inline void SetNumberOfCaptureRegisters(int value);
// Returns the subject string of the last match.
inline String LastSubject();
inline void SetLastSubject(String value);
// Like LastSubject, but modifiable by the user.
inline Object LastInput();
inline void SetLastInput(Object value);
// Returns the i'th capture index, 0 <= i < NumberOfCaptures(). Capture(0) and
// Capture(1) determine the start- and endpoint of the match itself.
inline int Capture(int i);
inline void SetCapture(int i, int value);
// Reserves space for captures.
static Handle<RegExpMatchInfo> ReserveCaptures(
Isolate* isolate, Handle<RegExpMatchInfo> match_info, int capture_count);
DECL_CAST(RegExpMatchInfo)
static const int kNumberOfCapturesIndex = 0;
static const int kLastSubjectIndex = 1;
static const int kLastInputIndex = 2;
static const int kFirstCaptureIndex = 3;
static const int kLastMatchOverhead = kFirstCaptureIndex;
DEFINE_FIELD_OFFSET_CONSTANTS(FixedArray::kHeaderSize,
TORQUE_GENERATED_REG_EXP_MATCH_INFO_FIELDS)
// Every match info is guaranteed to have enough space to store two captures.
static const int kInitialCaptureIndices = 2;
OBJECT_CONSTRUCTORS(RegExpMatchInfo, FixedArray);
};
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_REGEXP_MATCH_INFO_H_
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