Rename codegen to macro-assembler....

src/regexp-codegen.h

-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef V8_REGEXP_CODEGEN_H_
-#define V8_REGEXP_CODEGEN_H_
-
-namespace v8 { namespace internal {
-
-
-struct DisjunctDecisionRow {
-  RegExpCharacterClass cc;
-  Label* on_match;
-  int actions;
-};
-
-
-// Actions.  These are things that can be specified to happen on a
-// match or failure when generating code.
-static const int kNoAction                      = 0x00;
-// Pop the current position in the subject from the backtracking stack.
-static const int kPopCurrentPosition            = 0x01;
-// Push the current position in the subject onto the backtracking stack.
-static const int kPushCurrentPosition           = 0x04;
-// As above, but in CheckCharacter and CheckCharacterClass which take an
-// offset, the offset is added to the current position first.
-static const int kPushCurrentPositionPlusOffset = 0x06;
-// Pop a new state from the stack and go to it.
-static const int kBacktrack                     = 0x08;
-// Goto the label that is given in another argument.
-static const int kGotoLabel                     = 0x10;
-// Advance current position (by the offset + 1).
-static const int kAdvanceCurrentPosition        = 0x20;
-// Push the label that is given in another argument onto the backtrack stack.
-static const int kPushBacktrackState            = 0x40;
-// The entire regexp has succeeded.
-static const int kSuccess                       = 0x80;
-// The entire regexp has failed to match.
-static const int kFailure                      = 0x100;
-
-
-template <typename SubjectChar>
-class RegexpCodeGenerator {
- public:
-  RegexpCodeGenerator() { }
-  virtual ~RegexpCodeGenerator() { }
-  virtual void Bind(Label* label) = 0;
-  // Writes the current position in the subject string into the given index of
-  // the captures array.  The old value is pushed to the stack.
-  virtual void WriteCaptureInfo(int index) = 0;
-  // Pops the the given index of the capture array from the stack.
-  virtual void PopCaptureInfo(int index) = 0;
-  // Pushes the current position in the subject string onto the stack for later
-  // retrieval.
-  virtual void PushCurrentPosition() = 0;
-  // Pops the current position in the subject string.
-  virtual void PopCurrentPosition() = 0;
-  // Check the current character for a match with a character class.  Take
-  // one of the actions depending on whether there is a match.
-  virtual void AdvanceCurrentPosition(int by) = 0;
-  // Looks at the next character from the subject and performs the corresponding
-  // action according to whether it matches.  Success_action can only be one of
-  // kAdvanceCurrentPosition or kNoAction.
-  virtual void CheckCharacterClass(
-      RegExpCharacterClass* cclass,
-      int success_action,
-      int fail_action,
-      int offset,                      // Offset from current subject position.
-      Label* fail_state = NULL) = 0;   // Used by kGotoLabel on failure.
-  // Check the current character for a match with a character class.  Take
-  // one of the actions depending on whether there is a match.
-  virtual void CheckCharacters(
-      Vector<uc16> str,
-      int fail_action,
-      int offset,
-      Label* state = NULL) = 0;        // Used by kGotoLabel on failure.
-  // Perform an action unconditionally.
-  virtual void Action(
-      int action,
-      Label* state = NULL) = 0;
-  // Peek at the next character and find out which of the disjunct character
-  // classes it is in.  Perform the corresponding actions on the corresponding
-  // label.
-  virtual void DisjunctCharacterPeekDispatch(
-      Vector<DisjunctDecisionRow> outcomes) = 0;
- private:
-};
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_REGEXP_CODEGEN_H_