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// Copyright 2011 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.
// A simple interpreter for the Irregexp byte code.
#ifndef V8_REGEXP_REGEXP_INTERPRETER_H_
#define V8_REGEXP_REGEXP_INTERPRETER_H_
#include "src/regexp/regexp.h"
namespace v8 {
namespace internal {
class V8_EXPORT_PRIVATE IrregexpInterpreter : public AllStatic {
public:
enum Result {
FAILURE = RegExp::kInternalRegExpFailure,
SUCCESS = RegExp::kInternalRegExpSuccess,
EXCEPTION = RegExp::kInternalRegExpException,
RETRY = RegExp::kInternalRegExpRetry,
};
// In case a StackOverflow occurs, a StackOverflowException is created and
// EXCEPTION is returned.
static Result MatchForCallFromRuntime(Isolate* isolate,
Handle<JSRegExp> regexp,
Handle<String> subject_string,
int* registers, int registers_length,
int start_position);
// In case a StackOverflow occurs, EXCEPTION is returned. The caller is
// responsible for creating the exception.
// RETRY is returned if a retry through the runtime is needed (e.g. when
// interrupts have been scheduled or the regexp is marked for tier-up).
// Arguments input_start, input_end and backtrack_stack are
// unused. They are only passed to match the signature of the native irregex
// code.
static Result MatchForCallFromJs(Address subject, int32_t start_position,
Address input_start, Address input_end,
int* registers, int32_t registers_length,
Address backtrack_stack,
RegExp::CallOrigin call_origin,
Isolate* isolate, Address regexp);
static Result MatchInternal(Isolate* isolate, ByteArray code_array,
String subject_string, int* registers,
int registers_length, int start_position,
RegExp::CallOrigin call_origin);
private:
static Result Match(Isolate* isolate, JSRegExp regexp, String subject_string,
int* registers, int registers_length, int start_position,
RegExp::CallOrigin call_origin);
};
} // namespace internal
} // namespace v8
#endif // V8_REGEXP_REGEXP_INTERPRETER_H_
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