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b070d98f6e
C++ JSRegExp -> RegExp Dart _JSSyntaxRegExp -> _RegExp Function RegExp.:irregexp: pattern -> RegExp.:matcher: pattern R=johnmccutchan@google.com Review URL: https://codereview.chromium.org/1815333002 .
100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/assert.h"
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#include "vm/bootstrap_natives.h"
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#include "vm/exceptions.h"
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#include "vm/native_entry.h"
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#include "vm/object.h"
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#include "vm/regexp_parser.h"
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#include "vm/regexp_assembler_ir.h"
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#include "vm/regexp_assembler_bytecode.h"
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#include "vm/thread.h"
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namespace dart {
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DECLARE_FLAG(bool, trace_irregexp);
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DEFINE_NATIVE_ENTRY(RegExp_factory, 4) {
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ASSERT(TypeArguments::CheckedHandle(arguments->NativeArgAt(0)).IsNull());
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GET_NON_NULL_NATIVE_ARGUMENT(String, pattern, arguments->NativeArgAt(1));
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GET_NON_NULL_NATIVE_ARGUMENT(
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Instance, handle_multi_line, arguments->NativeArgAt(2));
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GET_NON_NULL_NATIVE_ARGUMENT(
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Instance, handle_case_sensitive, arguments->NativeArgAt(3));
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bool ignore_case = handle_case_sensitive.raw() != Bool::True().raw();
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bool multi_line = handle_multi_line.raw() == Bool::True().raw();
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// Parse the pattern once in order to throw any format exceptions within
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// the factory constructor. It is parsed again upon compilation.
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RegExpCompileData compileData;
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if (!RegExpParser::ParseRegExp(pattern, multi_line, &compileData)) {
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// Parsing failures throw an exception.
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UNREACHABLE();
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}
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// Create a RegExp object containing only the initial parameters.
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return RegExpEngine::CreateRegExp(zone,
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pattern,
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multi_line,
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ignore_case);
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}
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DEFINE_NATIVE_ENTRY(RegExp_getPattern, 1) {
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const RegExp& regexp = RegExp::CheckedHandle(arguments->NativeArgAt(0));
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ASSERT(!regexp.IsNull());
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return regexp.pattern();
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}
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DEFINE_NATIVE_ENTRY(RegExp_getIsMultiLine, 1) {
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const RegExp& regexp = RegExp::CheckedHandle(arguments->NativeArgAt(0));
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ASSERT(!regexp.IsNull());
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return Bool::Get(regexp.is_multi_line()).raw();
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}
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DEFINE_NATIVE_ENTRY(RegExp_getIsCaseSensitive, 1) {
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const RegExp& regexp = RegExp::CheckedHandle(arguments->NativeArgAt(0));
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ASSERT(!regexp.IsNull());
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return Bool::Get(!regexp.is_ignore_case()).raw();
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}
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DEFINE_NATIVE_ENTRY(RegExp_getGroupCount, 1) {
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const RegExp& regexp = RegExp::CheckedHandle(arguments->NativeArgAt(0));
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ASSERT(!regexp.IsNull());
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if (regexp.is_initialized()) {
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return regexp.num_bracket_expressions();
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}
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const String& pattern = String::Handle(regexp.pattern());
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const String& errmsg = String::Handle(
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String::New("Regular expression is not initialized yet. "));
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const String& message = String::Handle(String::Concat(errmsg, pattern));
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const Array& args = Array::Handle(Array::New(1));
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args.SetAt(0, message);
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Exceptions::ThrowByType(Exceptions::kFormat, args);
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return Object::null();
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}
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DEFINE_NATIVE_ENTRY(RegExp_ExecuteMatch, 3) {
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// This function is intrinsified. See Intrinsifier::RegExp_ExecuteMatch.
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const RegExp& regexp = RegExp::CheckedHandle(arguments->NativeArgAt(0));
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ASSERT(!regexp.IsNull());
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GET_NON_NULL_NATIVE_ARGUMENT(String, subject, arguments->NativeArgAt(1));
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GET_NON_NULL_NATIVE_ARGUMENT(Smi, start_index, arguments->NativeArgAt(2));
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if (FLAG_interpret_irregexp || FLAG_precompiled_runtime) {
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return BytecodeRegExpMacroAssembler::Interpret(regexp, subject, start_index,
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zone);
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}
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return IRRegExpMacroAssembler::Execute(regexp, subject, start_index, zone);
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}
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} // namespace dart
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