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// Copyright 2020 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_REGEXP_EXPERIMENTAL_EXPERIMENTAL_H_
#define V8_REGEXP_EXPERIMENTAL_EXPERIMENTAL_H_
#include "src/regexp/regexp.h"
namespace v8 {
namespace internal {
class ExperimentalRegExp final : public AllStatic {
public:
// Initialization & Compilation
// -------------------------------------------------------------------------
// Check whether a parsed regexp pattern can be compiled and executed by the
// EXPERIMENTAL engine.
// TODO(mbid, v8:10765): This walks the RegExpTree, but it could also be
// checked on the fly in the parser. Not done currently because walking the
// AST again is more flexible and less error prone (but less performant).
static bool CanBeHandled(RegExpTree* tree, JSRegExp::Flags flags,
int capture_count);
static void Initialize(Isolate* isolate, Handle<JSRegExp> re,
Handle<String> pattern, JSRegExp::Flags flags,
int capture_count);
static bool IsCompiled(Handle<JSRegExp> re, Isolate* isolate);
V8_WARN_UNUSED_RESULT
static bool Compile(Isolate* isolate, Handle<JSRegExp> re);
// Execution:
static int32_t MatchForCallFromJs(Address subject, int32_t start_position,
Address input_start, Address input_end,
int* output_registers,
int32_t output_register_count,
Address backtrack_stack,
RegExp::CallOrigin call_origin,
Isolate* isolate, Address regexp);
static MaybeHandle<Object> Exec(
Isolate* isolate, Handle<JSRegExp> regexp, Handle<String> subject,
int index, Handle<RegExpMatchInfo> last_match_info,
RegExp::ExecQuirks exec_quirks = RegExp::ExecQuirks::kNone);
static int32_t ExecRaw(Isolate* isolate, RegExp::CallOrigin call_origin,
JSRegExp regexp, String subject,
int32_t* output_registers,
int32_t output_register_count, int32_t subject_index);
// Compile and execute a regexp with the experimental engine, regardless of
// its type tag. The regexp itself is not changed (apart from lastIndex).
static MaybeHandle<Object> OneshotExec(
Isolate* isolate, Handle<JSRegExp> regexp, Handle<String> subject,
int index, Handle<RegExpMatchInfo> last_match_info,
RegExp::ExecQuirks exec_quirks = RegExp::ExecQuirks::kNone);
static int32_t OneshotExecRaw(Isolate* isolate, Handle<JSRegExp> regexp,
Handle<String> subject,
int32_t* output_registers,
int32_t output_register_count,
int32_t subject_index);
static constexpr bool kSupportsUnicode = false;
};
} // namespace internal
} // namespace v8
#endif // V8_REGEXP_EXPERIMENTAL_EXPERIMENTAL_H_
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