Port and integrate the irregexp engine from V8

runtime/vm/parser.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 #include "lib/invocation_mirror.h"
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler_stats.h"
 #include "vm/object.h"
 #include "vm/raw_object.h"
 #include "vm/token.h"
 
 namespace dart {
 
 // Forward declarations.
 class ArgumentsDescriptor;
 class Isolate;
 class LocalScope;
 class LocalVariable;
+class RegExpCompileData;
 class SourceLabel;
 template <typename T> class GrowableArray;
 
 struct CatchParamDesc;
 class ClassDesc;
 struct MemberDesc;
 struct ParamList;
 struct QualIdent;
 struct TopLevel;
 
 // The class ParsedFunction holds the result of parsing a function.
 class ParsedFunction : public ZoneAllocated {
  public:
   ParsedFunction(Isolate* isolate, const Function& function)
       : function_(function),
         code_(Code::Handle(isolate, function.unoptimized_code())),
         node_sequence_(NULL),
+        regexp_compile_data_(NULL),
         instantiator_(NULL),
         default_parameter_values_(Array::ZoneHandle(isolate, Array::null())),
         saved_current_context_var_(NULL),
         saved_entry_context_var_(NULL),
         expression_temp_var_(NULL),
         finally_return_temp_var_(NULL),
         deferred_prefixes_(new ZoneGrowableArray<const LibraryPrefix*>()),
         first_parameter_index_(0),
         first_stack_local_index_(0),
         num_copied_params_(0),
         num_stack_locals_(0),
         have_seen_await_expr_(false),
         saved_try_ctx_(NULL),
         async_saved_try_ctx_name_(String::ZoneHandle(isolate, String::null())),
         isolate_(isolate) {
     ASSERT(function.IsZoneHandle());
   }
 
   const Function& function() const { return function_; }
   const Code& code() const { return code_; }
 
   SequenceNode* node_sequence() const { return node_sequence_; }
   void SetNodeSequence(SequenceNode* node_sequence);
 
+  RegExpCompileData* regexp_compile_data() const {
+    return regexp_compile_data_;
+  }
+  void SetRegExpCompileData(RegExpCompileData* regexp_compile_data);
+
   LocalVariable* instantiator() const { return instantiator_; }
   void set_instantiator(LocalVariable* instantiator) {
     // May be NULL.
     instantiator_ = instantiator;
   }
 
   const Array& default_parameter_values() const {
     return default_parameter_values_;
   }
   void set_default_parameter_values(const Array& default_parameter_values) {
@@ skipping 54 matching lines @@
     return deferred_prefixes_;
   }
   void AddDeferredPrefix(const LibraryPrefix& prefix);
 
   int first_parameter_index() const { return first_parameter_index_; }
   int first_stack_local_index() const { return first_stack_local_index_; }
   int num_copied_params() const { return num_copied_params_; }
   int num_stack_locals() const { return num_stack_locals_; }
 
   void AllocateVariables();
+  void AllocateIrregexpVariables(intptr_t num_stack_locals);
 
   void record_await() {
     have_seen_await_expr_ = true;
   }
   void reset_have_seen_await() { have_seen_await_expr_ = false; }
   bool have_seen_await() const { return have_seen_await_expr_; }
 
   void set_saved_try_ctx(LocalVariable* saved_try_ctx) {
     ASSERT((saved_try_ctx == NULL) || !saved_try_ctx->is_captured());
     saved_try_ctx_ = saved_try_ctx;
@@ skipping 11 matching lines @@
     saved_try_ctx_ = NULL;
     async_saved_try_ctx_name_ = String::null();
   }
 
   Isolate* isolate() const { return isolate_; }
 
  private:
   const Function& function_;
   Code& code_;
   SequenceNode* node_sequence_;
+  RegExpCompileData* regexp_compile_data_;
   LocalVariable* instantiator_;
   Array& default_parameter_values_;
   LocalVariable* saved_current_context_var_;
   LocalVariable* saved_entry_context_var_;
   LocalVariable* expression_temp_var_;
   LocalVariable* finally_return_temp_var_;
   ZoneGrowableArray<const LibraryPrefix*>* deferred_prefixes_;
 
   int first_parameter_index_;
   int first_stack_local_index_;
@@ skipping 630 matching lines @@
   bool unregister_pending_function_;
 
   LocalScope* async_temp_scope_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_