diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/irregexp/imported/regexp-interpreter.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/irregexp/imported/regexp-interpreter.h')
-rw-r--r-- | js/src/irregexp/imported/regexp-interpreter.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/js/src/irregexp/imported/regexp-interpreter.h b/js/src/irregexp/imported/regexp-interpreter.h new file mode 100644 index 0000000000..bc55be2b8c --- /dev/null +++ b/js/src/irregexp/imported/regexp-interpreter.h @@ -0,0 +1,68 @@ +// 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 "irregexp/imported/regexp.h" + +namespace v8 { +namespace internal { + +class ByteArray; + +class V8_EXPORT_PRIVATE IrregexpInterpreter : public AllStatic { + public: + enum Result { + FAILURE = RegExp::kInternalRegExpFailure, + SUCCESS = RegExp::kInternalRegExpSuccess, + EXCEPTION = RegExp::kInternalRegExpException, + RETRY = RegExp::kInternalRegExpRetry, + FALLBACK_TO_EXPERIMENTAL = RegExp::kInternalRegExpFallbackToExperimental, + }; + + // 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* output_registers, int output_register_count, 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 and input_end are unused. They are only passed to + // match the signature of the native irregex code. + // + // Arguments output_registers and output_register_count describe the results + // array, which will contain register values of all captures if SUCCESS is + // returned. For all other return codes, the results array remains unmodified. + static Result MatchForCallFromJs(Address subject, int32_t start_position, + Address input_start, Address input_end, + int* output_registers, + int32_t output_register_count, + RegExp::CallOrigin call_origin, + Isolate* isolate, Address regexp); + + static Result MatchInternal(Isolate* isolate, ByteArray code_array, + String subject_string, int* output_registers, + int output_register_count, + int total_register_count, int start_position, + RegExp::CallOrigin call_origin, + uint32_t backtrack_limit); + + private: + static Result Match(Isolate* isolate, JSRegExp regexp, String subject_string, + int* output_registers, int output_register_count, + int start_position, RegExp::CallOrigin call_origin); +}; + +} // namespace internal +} // namespace v8 + +#endif // V8_REGEXP_REGEXP_INTERPRETER_H_ |