Move all the builtin$ interceptors to a new interceptors library and shorten the names of them.

lib/compiler/implementation/lib/interceptors.dart

Index: lib/compiler/implementation/lib/interceptors.dart
diff --git a/lib/compiler/implementation/lib/interceptors.dart b/lib/compiler/implementation/lib/interceptors.dart
new file mode 100644
index 0000000000000000000000000000000000000000..0e6ca2b9f69d4af8cbce6494f996683bb1a428cb
--- /dev/null
+++ b/lib/compiler/implementation/lib/interceptors.dart
@@ -0,0 +1,636 @@
+// 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.
+
+#library('interceptors');
+
+#import('coreimpl.dart');
+#import('js_helper.dart');
+
+add$1(var receiver, var value) {
+  if (isJsArray(receiver)) {
+    checkGrowable(receiver, 'add');
+    JS('Object', @'#.push(#)', receiver, value);
+    return;
+  }
+  return UNINTERCEPTED(receiver.add(value));
+}
+
+removeLast(var receiver) {
+  if (isJsArray(receiver)) {
+    checkGrowable(receiver, 'removeLast');
+    if (receiver.length === 0) throw new IndexOutOfRangeException(-1);
+    return JS('Object', @'#.pop()', receiver);
+  }
+  return UNINTERCEPTED(receiver.removeLast());
+}
+
+filter(var receiver, var predicate) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.filter(predicate));
+  } else {
+    return Collections.filter(receiver, [], predicate);
+  }
+}
+
+get$length(var receiver) {
+  if (receiver is String || isJsArray(receiver)) {
+    return JS('num', @'#.length', receiver);
+  } else {
+    return UNINTERCEPTED(receiver.length);
+  }
+}
+
+set$length(receiver, newLength) {
+  if (isJsArray(receiver)) {
+    checkNull(newLength); // TODO(ahe): This is not specified but co19 tests it.
+    if (newLength is !int) throw new IllegalArgumentException(newLength);
+    if (newLength < 0) throw new IndexOutOfRangeException(newLength);
+    checkGrowable(receiver, 'set length');
+    JS('void', @'#.length = #', receiver, newLength);
+  } else {
+    UNINTERCEPTED(receiver.length = newLength);
+  }
+  return newLength;
+}
+
+toString(var value) {
+  if (JS('bool', @'typeof # == "object"', value)) {
+    if (isJsArray(value)) {
+      return Collections.collectionToString(value);
+    } else {
+      return UNINTERCEPTED(value.toString());
+    }
+  }
+  if (JS('bool', @'# === 0 && (1 / #) < 0', value, value)) {
+    return '-0.0';
+  }
+  if (value === null) return 'null';
+  if (JS('bool', @'typeof # == "function"', value)) {
+    return 'Closure';
+  }
+  return JS('string', @'String(#)', value);
+}
+
+iterator(receiver) {
+  if (isJsArray(receiver)) {
+    return new ListIterator(receiver);
+  }
+  return UNINTERCEPTED(receiver.iterator());
+}
+
+charCodeAt(var receiver, int index) {
+  if (receiver is String) {
+    if (index is !num) throw new IllegalArgumentException(index);
+    if (index < 0) throw new IndexOutOfRangeException(index);
+    if (index >= receiver.length) throw new IndexOutOfRangeException(index);
+    return JS('int', @'#.charCodeAt(#)', receiver, index);
+  } else {
+    return UNINTERCEPTED(receiver.charCodeAt(index));
+  }
+}
+
+isEmpty(receiver) {
+  if (receiver is String || isJsArray(receiver)) {
+    return JS('bool', @'#.length === 0', receiver);
+  }
+  return UNINTERCEPTED(receiver.isEmpty());
+}
+
+compareTo(a, b) {
+  if (checkNumbers(a, b)) {
+    if (a < b) {
+      return -1;
+    } else if (a > b) {
+      return 1;
+    } else if (a == b) {
+      if (a == 0) {
+        bool aIsNegative = a.isNegative();
+        bool bIsNegative = b.isNegative();
+        if (aIsNegative == bIsNegative) return 0;
+        if (aIsNegative) return -1;
+        return 1;
+      }
+      return 0;
+    } else if (a.isNaN()) {
+      if (b.isNaN()) {
+        return 0;
+      }
+      return 1;
+    } else {
+      return -1;
+    }
+  } else if (a is String) {
+    if (b is !String) throw new IllegalArgumentException(b);
+    return JS('bool', @'# == #', a, b) ? 0
+      : JS('bool', @'# < #', a, b) ? -1 : 1;
+  } else {
+    return UNINTERCEPTED(a.compareTo(b));
+  }
+}
+
+addAll(receiver, collection) {
+  if (!isJsArray(receiver)) return UNINTERCEPTED(receiver.addAll(collection));
+
+  // TODO(ahe): Use for-in when it is implemented correctly.
+  var iterator = collection.iterator();
+  while (iterator.hasNext()) {
+    receiver.add(iterator.next());
+  }
+}
+
+addLast(receiver, value) {
+  if (!isJsArray(receiver)) return UNINTERCEPTED(receiver.addLast(value));
+
+  checkGrowable(receiver, 'addLast');
+  JS('Object', @'#.push(#)', receiver, value);
+}
+
+clear(receiver) {
+  if (!isJsArray(receiver)) return UNINTERCEPTED(receiver.clear());
+  receiver.length = 0;
+}
+
+forEach(receiver, f) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.forEach(f));
+  } else {
+    return Collections.forEach(receiver, f);
+  }
+}
+
+map(receiver, f) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.map(f));
+  } else {
+    return Collections.map(receiver, [], f);
+  }
+}
+
+getRange(receiver, start, length) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.getRange(start, length));
+  }
+  if (0 === length) return [];
+  checkNull(start); // TODO(ahe): This is not specified but co19 tests it.
+  checkNull(length); // TODO(ahe): This is not specified but co19 tests it.
+  if (start is !int) throw new IllegalArgumentException(start);
+  if (length is !int) throw new IllegalArgumentException(length);
+  if (length < 0) throw new IllegalArgumentException(length);
+  if (start < 0) throw new IndexOutOfRangeException(start);
+  var end = start + length;
+  if (end > receiver.length) {
+    throw new IndexOutOfRangeException(length);
+  }
+  if (length < 0) throw new IllegalArgumentException(length);
+  return JS('Object', @'#.slice(#, #)', receiver, start, end);
+}
+
+indexOf$1(receiver, element) {
+  if (isJsArray(receiver) || receiver is String) {
+    return indexOf$2(receiver, element, 0);
+  }
+  return UNINTERCEPTED(receiver.indexOf(element));
+}
+
+indexOf$2(receiver, element, start) {
+  if (isJsArray(receiver)) {
+    if (start is !int) throw new IllegalArgumentException(start);
+    var length = JS('num', @'#.length', receiver);
+    return Arrays.indexOf(receiver, element, start, length);
+  } else if (receiver is String) {
+    checkNull(element);
+    if (start is !int) throw new IllegalArgumentException(start);
+    if (element is !String) throw new IllegalArgumentException(element);
+    if (start < 0) return -1; // TODO(ahe): Is this correct?
+    return JS('int', @'#.indexOf(#, #)', receiver, element, start);
+  }
+  return UNINTERCEPTED(receiver.indexOf(element, start));
+}
+
+insertRange$2(receiver, start, length) {
+  if (isJsArray(receiver)) {
+    return insertRange$3(receiver, start, length, null);
+  }
+  return UNINTERCEPTED(receiver.insertRange(start, length));
+}
+
+insertRange$3(receiver, start, length, initialValue) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.insertRange(start, length, initialValue));
+  }
+  return listInsertRange(receiver, start, length, initialValue);
+}
+
+last(receiver) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.last());
+  }
+  return receiver[receiver.length - 1];
+}
+
+lastIndexOf$1(receiver, element) {
+  if (isJsArray(receiver)) {
+    var start = JS('num', @'#.length', receiver);
+    return Arrays.lastIndexOf(receiver, element, start);
+  } else if (receiver is String) {
+    checkNull(element);
+    if (element is !String) throw new IllegalArgumentException(element);
+    return JS('int', @'#.lastIndexOf(#)', receiver, element);
+  }
+  return UNINTERCEPTED(receiver.lastIndexOf(element));
+}
+
+lastIndexOf$2(receiver, element, start) {
+  if (isJsArray(receiver)) {
+    return Arrays.lastIndexOf(receiver, element, start);
+  } else if (receiver is String) {
+    checkNull(element);
+    if (element is !String) throw new IllegalArgumentException(element);
+    if (start !== null) {
+      if (start is !num) throw new IllegalArgumentException(start);
+      if (start < 0) return -1;
+      if (start >= receiver.length) {
+        if (element == "") return receiver.length;
+        start = receiver.length - 1;
+      }
+    }
+    return stringLastIndexOfUnchecked(receiver, element, start);
+  }
+  return UNINTERCEPTED(receiver.lastIndexOf(element, start));
+}
+
+removeRange(receiver, start, length) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.removeRange(start, length));
+  }
+  checkGrowable(receiver, 'removeRange');
+  if (length == 0) {
+    return;
+  }
+  checkNull(start); // TODO(ahe): This is not specified but co19 tests it.
+  checkNull(length); // TODO(ahe): This is not specified but co19 tests it.
+  if (start is !int) throw new IllegalArgumentException(start);
+  if (length is !int) throw new IllegalArgumentException(length);
+  if (length < 0) throw new IllegalArgumentException(length);
+  var receiverLength = JS('num', @'#.length', receiver);
+  if (start < 0 || start >= receiverLength) {
+    throw new IndexOutOfRangeException(start);
+  }
+  if (start + length > receiverLength) {
+    throw new IndexOutOfRangeException(start + length);
+  }
+  Arrays.copy(receiver,
+              start + length,
+              receiver,
+              start,
+              receiverLength - length - start);
+  receiver.length = receiverLength - length;
+}
+
+setRange$3(receiver, start, length, from) {
+  if (isJsArray(receiver)) {
+    return setRange$4(receiver, start, length, from, 0);
+  }
+  return UNINTERCEPTED(receiver.setRange(start, length, from));
+}
+
+setRange$4(receiver, start, length, from, startFrom) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.setRange(start, length, from, startFrom));
+  }
+
+  checkMutable(receiver, 'indexed set');
+  if (length === 0) return;
+  checkNull(start); // TODO(ahe): This is not specified but co19 tests it.
+  checkNull(length); // TODO(ahe): This is not specified but co19 tests it.
+  checkNull(from); // TODO(ahe): This is not specified but co19 tests it.
+  checkNull(startFrom); // TODO(ahe): This is not specified but co19 tests it.
+  if (start is !int) throw new IllegalArgumentException(start);
+  if (length is !int) throw new IllegalArgumentException(length);
+  if (startFrom is !int) throw new IllegalArgumentException(startFrom);
+  if (length < 0) throw new IllegalArgumentException(length);
+  if (start < 0) throw new IndexOutOfRangeException(start);
+  if (start + length > receiver.length) {
+    throw new IndexOutOfRangeException(start + length);
+  }
+
+  Arrays.copy(from, startFrom, receiver, start, length);
+}
+
+some(receiver, f) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.some(f));
+  } else {
+    return Collections.some(receiver, f);
+  }
+}
+
+every(receiver, f) {
+  if (!isJsArray(receiver)) {
+    return UNINTERCEPTED(receiver.every(f));
+  } else {
+    return Collections.every(receiver, f);
+  }
+}
+
+sort(receiver, compare) {
+  if (!isJsArray(receiver)) return UNINTERCEPTED(receiver.sort(compare));
+
+  checkMutable(receiver, 'sort');
+  DualPivotQuicksort.sort(receiver, compare);
+}
+
+isNegative(receiver) {
+  if (receiver is num) {
+    return (receiver === 0) ? (1 / receiver) < 0 : receiver < 0;
+  } else {
+    return UNINTERCEPTED(receiver.isNegative());
+  }
+}
+
+isNaN(receiver) {
+  if (receiver is num) {
+    return JS('bool', @'isNaN(#)', receiver);
+  } else {
+    return UNINTERCEPTED(receiver.isNegative());
+  }
+}
+
+remainder(a, b) {
+  if (checkNumbers(a, b)) {
+    return JS('num', @'# % #', a, b);
+  } else {
+    return UNINTERCEPTED(a.remainder(b));
+  }
+}
+
+abs(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.abs());
+
+  return JS('num', @'Math.abs(#)', receiver);
+}
+
+toInt(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.toInt());
+
+  if (receiver.isNaN()) throw new BadNumberFormatException('NaN');
+
+  if (receiver.isInfinite()) throw new BadNumberFormatException('Infinity');
+
+  var truncated = receiver.truncate();
+  return JS('bool', @'# == -0.0', truncated) ? 0 : truncated;
+}
+
+ceil(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.ceil());
+
+  return JS('num', @'Math.ceil(#)', receiver);
+}
+
+floor(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.floor());
+
+  return JS('num', @'Math.floor(#)', receiver);
+}
+
+isInfinite(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.isInfinite());
+
+  return JS('bool', @'# == Infinity', receiver)
+    || JS('bool', @'# == -Infinity', receiver);
+}
+
+negate(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.negate());
+
+  return JS('num', @'-#', receiver);
+}
+
+round(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.round());
+
+  if (JS('bool', @'# < 0', receiver)) {
+    return JS('num', @'-Math.round(-#)', receiver);
+  } else {
+    return JS('num', @'Math.round(#)', receiver);
+  }
+}
+
+toDouble(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.toDouble());
+
+  return receiver;
+}
+
+truncate(receiver) {
+  if (receiver is !num) return UNINTERCEPTED(receiver.truncate());
+
+  return receiver < 0 ? receiver.ceil() : receiver.floor();
+}
+
+toStringAsFixed(receiver, fractionDigits) {
+  if (receiver is !num) {
+    return UNINTERCEPTED(receiver.toStringAsFixed(fractionDigits));
+  }
+  checkNum(fractionDigits);
+
+  String result = JS('String', @'#.toFixed(#)', receiver, fractionDigits);
+  if (receiver == 0 && receiver.isNegative()) return "-$result";
+  return result;
+}
+
+toStringAsExponential(receiver, fractionDigits) {
+  if (receiver is !num) {
+    return UNINTERCEPTED(receiver.toStringAsExponential(fractionDigits));
+  }
+  if (fractionDigits !== null) checkNum(fractionDigits);
+
+  String result = JS('String', @'#.toExponential(#)',
+                     receiver, fractionDigits);
+  if (receiver == 0 && receiver.isNegative()) return "-$result";
+  return result;
+}
+
+toStringAsPrecision(receiver, fractionDigits) {
+  if (receiver is !num) {
+    return UNINTERCEPTED(receiver.toStringAsPrecision(fractionDigits));
+  }
+  checkNum(fractionDigits);
+
+  String result = JS('String', @'#.toPrecision(#)',
+                     receiver, fractionDigits);
+  if (receiver == 0 && receiver.isNegative()) return "-$result";
+  return result;
+}
+
+toRadixString(receiver, radix) {
+  if (receiver is !num) {
+    return UNINTERCEPTED(receiver.toRadixString(radix));
+  }
+  checkNum(radix);
+
+  return JS('String', @'#.toString(#)', receiver, radix);
+}
+
+allMatches(receiver, str) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.allMatches(str));
+  checkString(str);
+  return allMatchesInStringUnchecked(receiver, str);
+}
+
+concat(receiver, other) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.concat(other));
+
+  if (other is !String) throw new IllegalArgumentException(other);
+  return JS('String', @'# + #', receiver, other);
+}
+
+contains$1(receiver, other) {
+  if (receiver is !String) {
+    return UNINTERCEPTED(receiver.contains(other));
+  }
+  return contains$2(receiver, other, 0);
+}
+
+contains$2(receiver, other, startIndex) {
+  if (receiver is !String) {
+    return UNINTERCEPTED(receiver.contains(other, startIndex));
+  }
+  checkNull(other);
+  return stringContainsUnchecked(receiver, other, startIndex);
+}
+
+endsWith(receiver, other) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.endsWith(other));
+
+  checkString(other);
+  int receiverLength = receiver.length;
+  int otherLength = other.length;
+  if (otherLength > receiverLength) return false;
+  return other == receiver.substring(receiverLength - otherLength);
+}
+
+replaceAll(receiver, from, to) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.replaceAll(from, to));
+
+  checkString(to);
+  return stringReplaceAllUnchecked(receiver, from, to);
+}
+
+replaceFirst(receiver, from, to) {
+  if (receiver is !String) {
+    return UNINTERCEPTED(receiver.replaceFirst(from, to));
+  }
+  checkString(to);
+  return stringReplaceFirstUnchecked(receiver, from, to);
+}
+
+split(receiver, pattern) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.split(pattern));
+  checkNull(pattern);
+  return stringSplitUnchecked(receiver, pattern);
+}
+
+splitChars(receiver) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.splitChars());
+
+  return JS('List', @'#.split("")', receiver);
+}
+
+startsWith(receiver, other) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.startsWith(other));
+  checkString(other);
+
+  int length = other.length;
+  if (length > receiver.length) return false;
+  return JS('bool', @'# == #', other,
+            JS('String', @'#.substring(0, #)', receiver, length));
+}
+
+substring$1(receiver, startIndex) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.substring(startIndex));
+
+  return substring$2(receiver, startIndex, null);
+}
+
+substring$2(receiver, startIndex, endIndex) {
+  if (receiver is !String) {
+    return UNINTERCEPTED(receiver.substring(startIndex, endIndex));
+  }
+  checkNum(startIndex);
+  var length = receiver.length;
+  if (endIndex === null) endIndex = length;
+  checkNum(endIndex);
+  if (startIndex < 0 ) throw new IndexOutOfRangeException(startIndex);
+  if (startIndex > endIndex) throw new IndexOutOfRangeException(startIndex);
+  if (endIndex > length) throw new IndexOutOfRangeException(endIndex);
+  return substringUnchecked(receiver, startIndex, endIndex);
+}
+
+toLowerCase(receiver) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.toLowerCase());
+
+  return JS('String', @'#.toLowerCase()', receiver);
+}
+
+toUpperCase(receiver) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.toUpperCase());
+
+  return JS('String', @'#.toUpperCase()', receiver);
+}
+
+trim(receiver) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.trim());
+
+  return JS('String', @'#.trim()', receiver);
+}
+
+/**
+ * This is the [Jenkins hash function][1] but using masking to keep
+ * values in SMI range. This was inspired by jmesserly's work in
+ * Frog.
+ *
+ * [1]: http://en.wikipedia.org/wiki/Jenkins_hash_function
+ */
+hashCode(receiver) {
+  // TODO(ahe): This method shouldn't have to use JS. Update when our
+  // optimizations are smarter.
+  if (receiver is num) return JS('int', @'# & 0x1FFFFFFF', receiver);
+  if (receiver is !String) return UNINTERCEPTED(receiver.hashCode());
+  int hash = 0;
+  int length = JS('int', @'#.length', receiver);
+  for (int i = 0; i < length; i++) {
+    hash = 0x1fffffff & (hash + JS('int', @'#.charCodeAt(#)', receiver, i));
+    hash = 0x1fffffff & (hash + JS('int', @'# << #', 0x0007ffff & hash, 10));
+    hash ^= hash >> 6;
+  }
+  hash = 0x1fffffff & (hash + JS('int', @'# << #', 0x03ffffff & hash, 3));
+  hash ^= hash >> 11;
+  return 0x1fffffff & (hash + JS('int', @'# << #', 0x00003fff & hash, 15));
+}
+
+// TODO(ahe): Dynamic may be overridden.
+get$dynamic(receiver) => receiver;
+
+charCodes(receiver) {
+  if (receiver is !String) return UNINTERCEPTED(receiver.charCodes());
+  int len = receiver.length;
+  List<int> result = new List<int>(len);
+  for (int i = 0; i < len; i++) {
+    result[i] = receiver.charCodeAt(i);
+  }
+  return result;
+}
+
+isEven(receiver) {
+  if (receiver is !int) return UNINTERCEPTED(receiver.isEven());
+  return (receiver & 1) === 0;
+}
+
+isOdd(receiver) {
+  if (receiver is !int) return UNINTERCEPTED(receiver.isOdd());
+  return (receiver & 1) === 1;
+}
+
+get$toString(receiver) => () => toString(receiver);