Move lib from sdk/lib/_internal/compiler/implementation to _internal root.

sdk/lib/_internal/compiler/implementation/lib/js_string.dart

Index: sdk/lib/_internal/compiler/implementation/lib/js_string.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/lib/js_string.dart	(revision 23664)
+++ sdk/lib/_internal/compiler/implementation/lib/js_string.dart	(working copy)
@@ -1,283 +0,0 @@
-// 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.
-
-part of _interceptors;
-
-/**
- * The interceptor class for [String]. The compiler recognizes this
- * class as an interceptor, and changes references to [:this:] to
- * actually use the receiver of the method, which is generated as an extra
- * argument added to each member.
- */
-class JSString extends Interceptor implements String, JSIndexable {
-  const JSString();
-
-  int codeUnitAt(int index) {
-    if (index is !num) throw new ArgumentError(index);
-    if (index < 0) throw new RangeError.value(index);
-    if (index >= length) throw new RangeError.value(index);
-    return JS('int', r'#.charCodeAt(#)', this, index);
-  }
-
-  Iterable<Match> allMatches(String str) {
-    checkString(str);
-    return allMatchesInStringUnchecked(this, str);
-  }
-
-  String operator +(String other) {
-    if (other is !String) throw new ArgumentError(other);
-    return JS('String', r'# + #', this, other);
-  }
-
-  String concat(String other) => this + other;
-
-  bool endsWith(String other) {
-    checkString(other);
-    int otherLength = other.length;
-    if (otherLength > length) return false;
-    return other == substring(length - otherLength);
-  }
-
-  String replaceAll(Pattern from, String to) {
-    checkString(to);
-    return stringReplaceAllUnchecked(this, from, to);
-  }
-
-  String replaceAllMapped(Pattern from, String convert(Match match)) {
-    return this.splitMapJoin(from, onMatch: convert);
-  }
-
-  String splitMapJoin(Pattern from,
-                      {String onMatch(Match match),
-                       String onNonMatch(String nonMatch)}) {
-    return stringReplaceAllFuncUnchecked(this, from, onMatch, onNonMatch);
-  }
-
-  String replaceFirst(Pattern from, String to) {
-    checkString(to);
-    return stringReplaceFirstUnchecked(this, from, to);
-  }
-
-  List<String> split(Pattern pattern) {
-    checkNull(pattern);
-    if (pattern is String) {
-      return JS('=List', r'#.split(#)', this, pattern);
-    } else if (pattern is JSSyntaxRegExp) {
-      var re = regExpGetNative(pattern);
-      return JS('=List', r'#.split(#)', this, re);
-    } else {
-      throw "String.split(Pattern) UNIMPLEMENTED";
-    }
-  }
-
-  bool startsWith(String other) {
-    checkString(other);
-    int otherLength = other.length;
-    if (otherLength > length) return false;
-    return JS('bool', r'# == #', other,
-              JS('String', r'#.substring(0, #)', this, otherLength));
-  }
-
-  String substring(int startIndex, [int endIndex]) {
-    checkNum(startIndex);
-    if (endIndex == null) endIndex = length;
-    checkNum(endIndex);
-    if (startIndex < 0 ) throw new RangeError.value(startIndex);
-    if (startIndex > endIndex) throw new RangeError.value(startIndex);
-    if (endIndex > length) throw new RangeError.value(endIndex);
-    return JS('String', r'#.substring(#, #)', this, startIndex, endIndex);
-  }
-
-  String toLowerCase() {
-    return JS('String', r'#.toLowerCase()', this);
-  }
-
-  String toUpperCase() {
-    return JS('String', r'#.toUpperCase()', this);
-  }
-
-  // Characters with Whitespace property (Unicode 6.2).
-  // 0009..000D    ; White_Space # Cc       <control-0009>..<control-000D>
-  // 0020          ; White_Space # Zs       SPACE
-  // 0085          ; White_Space # Cc       <control-0085>
-  // 00A0          ; White_Space # Zs       NO-BREAK SPACE
-  // 1680          ; White_Space # Zs       OGHAM SPACE MARK
-  // 180E          ; White_Space # Zs       MONGOLIAN VOWEL SEPARATOR
-  // 2000..200A    ; White_Space # Zs       EN QUAD..HAIR SPACE
-  // 2028          ; White_Space # Zl       LINE SEPARATOR
-  // 2029          ; White_Space # Zp       PARAGRAPH SEPARATOR
-  // 202F          ; White_Space # Zs       NARROW NO-BREAK SPACE
-  // 205F          ; White_Space # Zs       MEDIUM MATHEMATICAL SPACE
-  // 3000          ; White_Space # Zs       IDEOGRAPHIC SPACE
-  //
-  // BOM: 0xFEFF
-  static bool _isWhitespace(int codeUnit) {
-    // Most codeUnits should be less than 256. Special case with a smaller
-    // switch.
-    if (codeUnit < 256) {
-      switch (codeUnit) {
-        case 0x09:
-        case 0x0A:
-        case 0x0B:
-        case 0x0C:
-        case 0x0D:
-        case 0x20:
-        case 0x85:
-        case 0xA0:
-          return true;
-        default:
-          return false;
-      }
-    }
-    switch (codeUnit) {
-      case 0x1680:
-      case 0x180E:
-      case 0x2000:
-      case 0x2001:
-      case 0x2002:
-      case 0x2003:
-      case 0x2004:
-      case 0x2005:
-      case 0x2006:
-      case 0x2007:
-      case 0x2008:
-      case 0x2009:
-      case 0x200A:
-      case 0x2028:
-      case 0x2029:
-      case 0x202F:
-      case 0x205F:
-      case 0x3000:
-      case 0xFEFF:
-        return true;
-      default:
-        return false;
-    }
-  }
-
-  // Dart2js can't use JavaScript trim, because JavaScript does not trim
-  // the NEXT LINE character (0x85) and BOMs (0xFEFF).
-  String trim() {
-    const int CARRIAGE_RETURN = 0x0D;
-    const int SPACE = 0x20;
-
-    int startIndex = 0;
-    while (startIndex < this.length) {
-      int codeUnit = this.codeUnitAt(startIndex);
-      if (codeUnit == SPACE ||
-          codeUnit == CARRIAGE_RETURN ||
-          _isWhitespace(codeUnit)) {
-        startIndex++;
-      } else {
-        break;
-      }
-    }
-    if (startIndex == this.length) return "";
-
-    int endIndex = this.length;
-    // We know that there is at least one character that is non-whitespace.
-    // Therefore we don't need to verify that endIndex > startIndex.
-    while (true) {
-      int codeUnit = this.codeUnitAt(endIndex - 1);
-      if (codeUnit == SPACE ||
-          codeUnit == CARRIAGE_RETURN ||
-          _isWhitespace(codeUnit)) {
-        endIndex--;
-      } else {
-        break;
-      }
-    }
-    if (startIndex == 0 && endIndex == this.length) return this;
-    return JS('String', r'#.substring(#, #)', this, startIndex, endIndex);
-  }
-
-  List<int> get codeUnits => new _CodeUnits(this);
-
-  Runes get runes => new Runes(this);
-
-  int indexOf(String other, [int start = 0]) {
-    checkNull(other);
-    if (start is !int) throw new ArgumentError(start);
-    if (other is !String) throw new ArgumentError(other);
-    if (start < 0) return -1;
-    return JS('int', r'#.indexOf(#, #)', this, other, start);
-  }
-
-  int lastIndexOf(String other, [int start]) {
-    checkNull(other);
-    if (other is !String) throw new ArgumentError(other);
-    if (start != null) {
-      if (start is !num) throw new ArgumentError(start);
-      if (start < 0) return -1;
-      if (start >= length) {
-        if (other == "") return length;
-        start = length - 1;
-      }
-    } else {
-      start = length - 1;
-    }
-    return stringLastIndexOfUnchecked(this, other, start);
-  }
-
-  bool contains(Pattern other, [int startIndex = 0]) {
-    checkNull(other);
-    return stringContainsUnchecked(this, other, startIndex);
-  }
-
-  bool get isEmpty => length == 0;
-
-  bool get isNotEmpty => !isEmpty;
-
-  int compareTo(String other) {
-    if (other is !String) throw new ArgumentError(other);
-    return this == other ? 0
-      : JS('bool', r'# < #', this, other) ? -1 : 1;
-  }
-
-  // Note: if you change this, also change the function [S].
-  String toString() => this;
-
-  /**
-   * This is the [Jenkins hash function][1] but using masking to keep
-   * values in SMI range.
-   *
-   * [1]: http://en.wikipedia.org/wiki/Jenkins_hash_function
-   */
-  int get hashCode {
-    // TODO(ahe): This method shouldn't have to use JS. Update when our
-    // optimizations are smarter.
-    int hash = 0;
-    for (int i = 0; i < length; i++) {
-      hash = 0x1fffffff & (hash + JS('int', r'#.charCodeAt(#)', this, i));
-      hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
-      hash = JS('int', '# ^ (# >> 6)', hash, hash);
-    }
-    hash = 0x1fffffff & (hash + ((0x03ffffff & hash) <<  3));
-    hash = JS('int', '# ^ (# >> 11)', hash, hash);
-    return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
-  }
-
-  Type get runtimeType => String;
-
-  int get length => JS('int', r'#.length', this);
-
-  String operator [](int index) {
-    if (index is !int) throw new ArgumentError(index);
-    if (index >= length || index < 0) throw new RangeError.value(index);
-    return JS('String', '#[#]', this, index);
-  }
-}
-
-/**
- * An [Iterable] of the UTF-16 code units of a [String] in index order.
- */
-class _CodeUnits extends UnmodifiableListBase<int> {
-  /** The string that this is the code units of. */
-  String _string;
-
-  _CodeUnits(this._string);
-
-  int get length => _string.length;
-  int operator[](int i) => _string.codeUnitAt(i);
-}