[regexp] Turn last match info into a simple FixedArray

src/js/macros.py

 # Copyright 2006-2009 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 21 matching lines @@
 define READ_ONLY   = 1;
 define DONT_ENUM   = 2;
 define DONT_DELETE = 4;
 
 # 2^53 - 1
 define kMaxSafeInteger = 9007199254740991;
 
 # 2^32 - 1
 define kMaxUint32 = 4294967295;
 
-# Native cache ids.
-define STRING_TO_REGEXP_CACHE_ID = 0;
-
 # Type query macros.
 #
 # Note: We have special support for typeof(foo) === 'bar' in the compiler.
 #       It will *not* generate a runtime typeof call for the most important
 #       values of 'bar'.
 macro IS_ARRAY(arg)             = (%_IsArray(arg));
 macro IS_ARRAYBUFFER(arg)       = (%_ClassOf(arg) === 'ArrayBuffer');
 macro IS_BOOLEAN(arg)           = (typeof(arg) === 'boolean');
 macro IS_DATAVIEW(arg)          = (%_ClassOf(arg) === 'DataView');
 macro IS_DATE(arg)              = (%IsDate(arg));
@@ skipping 55 matching lines @@
 # To avoid ES2015 Function name inference.
 macro ANONYMOUS_FUNCTION(fn) = (0, (fn));
 
 # Constants.  The compiler constant folds them.
 define INFINITY = (1/0);
 define UNDEFINED = (void 0);
 
 # Macros implemented in Python.
 python macro CHAR_CODE(str) = ord(str[1]);
 
-# Layout of internal RegExpLastMatchInfo object.
-define REGEXP_NUMBER_OF_CAPTURES = 0;
-define REGEXP_LAST_SUBJECT = 1;
-define REGEXP_LAST_INPUT = 2;
-define REGEXP_FIRST_CAPTURE = 3;
-define CAPTURE0 = 3;  # Aliases REGEXP_FIRST_CAPTURE.
-define CAPTURE1 = 4;
-
-macro NUMBER_OF_CAPTURES(array) = ((array)[REGEXP_NUMBER_OF_CAPTURES]);
-macro LAST_SUBJECT(array) = ((array)[REGEXP_LAST_SUBJECT]);
-macro LAST_INPUT(array) = ((array)[REGEXP_LAST_INPUT]);
-macro CAPTURE(index) = (REGEXP_FIRST_CAPTURE + (index));
-
-# Macros for internal slot access.
-macro REGEXP_GLOBAL(regexp) = (%_RegExpFlags(regexp) & 1);
-macro REGEXP_IGNORE_CASE(regexp) = (%_RegExpFlags(regexp) & 2);
-macro REGEXP_MULTILINE(regexp) = (%_RegExpFlags(regexp) & 4);
-macro REGEXP_STICKY(regexp) = (%_RegExpFlags(regexp) & 8);
-macro REGEXP_UNICODE(regexp) = (%_RegExpFlags(regexp) & 16);
-macro REGEXP_SOURCE(regexp) = (%_RegExpSource(regexp));
-
-# For the regexp capture override array.  This has the same
-# format as the arguments to a function called from
-# String.prototype.replace.
-macro OVERRIDE_MATCH(override) = ((override)[0]);
-macro OVERRIDE_POS(override) = ((override)[(override).length - 2]);
-macro OVERRIDE_SUBJECT(override) = ((override)[(override).length - 1]);
-# 1-based so index of 1 returns the first capture
-macro OVERRIDE_CAPTURE(override, index) = ((override)[(index)]);
-
 # For messages.js
 # Matches Script::Type from objects.h
 define TYPE_NATIVE = 0;
 define TYPE_EXTENSION = 1;
 define TYPE_NORMAL = 2;
 
 # Matches Script::CompilationType from objects.h
 define COMPILATION_TYPE_HOST = 0;
 define COMPILATION_TYPE_EVAL = 1;
 define COMPILATION_TYPE_JSON = 2;
@@ skipping 63 matching lines @@
 define kSloppyModeBlockScopedFunctionRedefinition = 22;
 define kForInInitializer = 23;
 define kArrayProtectorDirtied = 24;
 define kArraySpeciesModified = 25;
 define kArrayPrototypeConstructorModified = 26;
 define kArrayInstanceProtoModified = 27;
 define kArrayInstanceConstructorModified = 28;
 define kLegacyFunctionDeclaration = 29;
 define kRegExpPrototypeSourceGetter = 30;
 define kRegExpPrototypeOldFlagGetter = 31;