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
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+++ 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_