Strict mode octal literals.

src/scanner-base.h

 // Copyright 2010 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
@@ skipping 229 matching lines @@
   Vector<byte> backing_store_;
 };
 
 
 // ----------------------------------------------------------------------------
 // Scanner base-class.
 
 // Generic functionality used by both JSON and JavaScript scanners.
 class Scanner {
  public:
+  // -1 is outside of the range of any real source code.
+  static const int kNoOctalLocation = -1;
+
   typedef unibrow::Utf8InputBuffer<1024> Utf8Decoder;
 
   class LiteralScope {
    public:
     explicit LiteralScope(Scanner* self);
     ~LiteralScope();
     void Complete();
 
    private:
     Scanner* scanner_;
@@ skipping 13 matching lines @@
     Location() : beg_pos(0), end_pos(0) { }
     int beg_pos;
     int end_pos;
   };
 
   // Returns the location information for the current token
   // (the token returned by Next()).
   Location location() const { return current_.location; }
   Location peek_location() const { return next_.location; }
 
+  // Returns the location of the last seen octal literal
+  int octal_position() const { return octal_pos_; }
+  void clear_octal_position() { octal_pos_ = -1; }
+
   // Returns the literal string, if any, for the current token (the
   // token returned by Next()). The string is 0-terminated and in
   // UTF-8 format; they may contain 0-characters. Literal strings are
   // collected for identifiers, strings, and numbers.
   // These functions only give the correct result if the literal
   // was scanned between calls to StartLiteral() and TerminateLiteral().
   bool is_literal_ascii() {
     ASSERT_NOT_NULL(current_.literal_chars);
     return current_.literal_chars->is_ascii();
   }
@@ skipping 110 matching lines @@
   // Buffers collecting literal strings, numbers, etc.
   LiteralBuffer literal_buffer1_;
   LiteralBuffer literal_buffer2_;
 
   TokenDesc current_;  // desc for current token (as returned by Next())
   TokenDesc next_;     // desc for next token (one token look-ahead)
 
   // Input stream. Must be initialized to an UC16CharacterStream.
   UC16CharacterStream* source_;
 
+  // Start position of the octal literal last scanned.
+  int octal_pos_;
 
   // One Unicode character look-ahead; c0_ < 0 at the end of the input.
   uc32 c0_;
 };
 
 // ----------------------------------------------------------------------------
 // JavaScriptScanner - base logic for JavaScript scanning.
 
 class JavaScriptScanner : public Scanner {
  public:
@@ skipping 194 matching lines @@
   // keyword with the current prefix).
   const char* keyword_;
   int counter_;
   Token::Value keyword_token_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_BASE_H_