Remove backends.

compiler/java/com/google/dart/compiler/backend/js/JsReservedIdentifiers.java

Index: compiler/java/com/google/dart/compiler/backend/js/JsReservedIdentifiers.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/JsReservedIdentifiers.java b/compiler/java/com/google/dart/compiler/backend/js/JsReservedIdentifiers.java
deleted file mode 100644
index 56ae5428a3db01560665496d554de521d00e6abb..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/JsReservedIdentifiers.java
+++ /dev/null
@@ -1,223 +0,0 @@
-// Copyright (c) 2011, 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.
-
-package com.google.dart.compiler.backend.js;
-
-import java.util.HashSet;
-import java.util.Set;
-
-/**
- * Determines whether or not a particular string is a JavaScript keyword or not.
- */
-public class JsReservedIdentifiers {
-
-  private static Set<String> javaScriptKeywords;
-  private static Set<String> reservedGlobalSymbols;
-  private static Set<String> reservedPropertySymbols;
-
-  static {
-    javaScriptKeywords = new HashSet<String>();
-    reservedGlobalSymbols = new HashSet<String>();
-    reservedPropertySymbols = new HashSet<String>();
-    initJavaScriptKeywords();
-    initReservedGlobalSymbols();
-    initReservedPropertySymbols();
-  }
-
-  public static boolean isKeyword(String s) {
-    return javaScriptKeywords.contains(s);
-  }
-
-  private static void initJavaScriptKeywords() {
-    String[] keywords = new String[] {
-      // These are current keywords
-      "break", "delete", "function", "return", "typeof", "case", "do", "if", "switch", "var",
-      "catch", "else", "in", "this", "void", "continue", "false", "instanceof", "throw",
-      "while", "debugger", "finally", "new", "true", "with", "default", "for",
-      "null", "try",
-
-      // These are future keywords
-      "abstract", "double", "goto", "native", "static", "boolean", "enum", "implements",
-      "package", "super", "byte", "export", "import", "private", "synchronized", "char",
-      "extends", "int", "protected", "throws", "class", "final", "interface", "public",
-      "transient", "const", "float", "long", "short", "volatile"
-    };
-
-    for (int i = 0; i < keywords.length; i++) {
-      javaScriptKeywords.add(keywords[i]);
-    }
-  }
-
-  /**
-   * @return a set containing all known reserved global identifiers. This set must not be modified.
-   */
-  public static Set<String> getReservedGlobalSymbols() {
-    return reservedGlobalSymbols;
-  }
-
-  /**
-   * Returns true if the string s can not be used as a global identifier. The check includes
-   * JavaScript keywords (as they must not be used either).
-   * @param s
-   * @return true if the given String must not be used as a global identifier.
-   */
-  public static boolean isReservedGlobalSymbol(String s) {
-    return isKeyword(s) || reservedGlobalSymbols.contains(s);
-  }
-
-  private static void initReservedGlobalSymbols() {
-    // Section references are from Ecma-262
-    // (http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf)
-    String[] commonBuiltins = new String[] {
-        // 15.1.1 Value Properties of the Global Object
-        "NaN", "Infinity", "undefined",
-
-        // 15.1.2 Function Properties of the Global Object
-        "eval", "parseInt", "parseFloat", "isNan", "isFinite",
-
-        // 15.1.3 URI Handling Function Properties
-        "decodeURI", "decodeURIComponent",
-        "encodeURI",
-        "encodeURIComponent",
-
-        // 15.1.4 Constructor Properties of the Global Object
-        "Object", "Function", "Array", "String", "Boolean", "Number", "Date",
-        "RegExp", "Error", "EvalError", "RangeError", "ReferenceError",
-        "SyntaxError", "TypeError", "URIError",
-
-        // 15.1.5 Other Properties of the Global Object
-        "Math",
-
-        // 10.1.6 Activation Object
-        "arguments",
-
-        // B.2 Additional Properties (non-normative)
-        "escape", "unescape",
-
-        // Window props (https://developer.mozilla.org/en/DOM/window)
-        "applicationCache", "closed", "Components", "content", "controllers",
-        "crypto", "defaultStatus", "dialogArguments", "directories",
-        "document", "frameElement", "frames", "fullScreen", "globalStorage",
-        "history", "innerHeight", "innerWidth", "length",
-        "location", "locationbar", "localStorage", "menubar",
-        "mozInnerScreenX", "mozInnerScreenY", "mozScreenPixelsPerCssPixel",
-        "name", "navigator", "opener", "outerHeight", "outerWidth",
-        "pageXOffset", "pageYOffset", "parent", "personalbar", "pkcs11",
-        "returnValue", "screen", "scrollbars", "scrollMaxX", "scrollMaxY",
-        "self", "sessionStorage", "sidebar", "status", "statusbar", "toolbar",
-        "top", "window",
-
-        // Window methods (https://developer.mozilla.org/en/DOM/window)
-        "alert", "addEventListener", "atob", "back", "blur", "btoa",
-        "captureEvents", "clearInterval", "clearTimeout", "close", "confirm",
-        "disableExternalCapture", "dispatchEvent", "dump",
-        "enableExternalCapture", "escape", "find", "focus", "forward",
-        "GeckoActiveXObject", "getAttention", "getAttentionWithCycleCount",
-        "getComputedStyle", "getSelection", "home", "maximize", "minimize",
-        "moveBy", "moveTo", "open", "openDialog", "postMessage", "print",
-        "prompt", "QueryInterface", "releaseEvents", "removeEventListener",
-        "resizeBy", "resizeTo", "restore", "routeEvent", "scroll", "scrollBy",
-        "scrollByLines", "scrollByPages", "scrollTo", "setInterval",
-        "setResizeable", "setTimeout", "showModalDialog", "sizeToContent",
-        "stop", "uuescape", "updateCommands", "XPCNativeWrapper",
-        "XPCSafeJSOjbectWrapper",
-
-        // Mozilla Window event handlers, same cite
-        "onabort", "onbeforeunload", "onchange", "onclick", "onclose",
-        "oncontextmenu", "ondragdrop", "onerror", "onfocus", "onhashchange",
-        "onkeydown", "onkeypress", "onkeyup", "onload", "onmousedown",
-        "onmousemove", "onmouseout", "onmouseover", "onmouseup",
-        "onmozorientation", "onpaint", "onreset", "onresize", "onscroll",
-        "onselect", "onsubmit", "onunload",
-
-        // Safari Web Content Guide
-        // http://developer.apple.com/library/safari/#documentation/AppleApplications/Reference/SafariWebContent/SafariWebContent.pdf
-        // WebKit Window member data, from WebKit DOM Reference
-        // (http://developer.apple.com/safari/library/documentation/AppleApplications/Reference/WebKitDOMRef/DOMWindow_idl/Classes/DOMWindow/index.html)
-        // TODO(fredsa) Many, many more functions and member data to add
-        "ontouchcancel", "ontouchend", "ontouchmove", "ontouchstart",
-        "ongesturestart", "ongesturechange", "ongestureend",
-
-        // extra window methods
-        "uneval",
-
-        // keywords https://developer.mozilla.org/en/New_in_JavaScript_1.7,
-        // https://developer.mozilla.org/en/New_in_JavaScript_1.8.1
-        "getPrototypeOf", "let", "yield",
-
-        // "future reserved words"
-        "abstract", "int", "short", "boolean", "interface", "static", "byte",
-        "long", "char", "final", "native", "synchronized", "float", "package",
-        "throws", "goto", "private", "transient", "implements", "protected",
-        "volatile", "double", "public",
-
-        // IE methods
-        // (http://msdn.microsoft.com/en-us/library/ms535873(VS.85).aspx#)
-        "attachEvent", "clientInformation", "clipboardData", "createPopup",
-        "dialogHeight", "dialogLeft", "dialogTop", "dialogWidth",
-        "onafterprint", "onbeforedeactivate", "onbeforeprint",
-        "oncontrolselect", "ondeactivate", "onhelp", "onresizeend",
-
-        // Common browser-defined identifiers not defined in ECMAScript
-        "event", "external", "Debug", "Enumerator", "Global", "Image",
-        "ActiveXObject", "VBArray", "Components",
-
-        // Functions commonly defined on Object
-        "toString", "getClass", "constructor", "prototype", "valueOf",
-
-        // Client-side JavaScript identifiers, which are needed for linkers
-        // that don't ensure GWT's window != $wnd, document != $doc, etc.
-        // Taken from the Rhino book, pg 715
-        "Anchor", "Applet", "Attr", "Canvas", "CanvasGradient",
-        "CanvasPattern", "CanvasRenderingContext2D", "CDATASection",
-        "CharacterData", "Comment", "CSS2Properties", "CSSRule",
-        "CSSStyleSheet", "Document", "DocumentFragment", "DocumentType",
-        "DOMException", "DOMImplementation", "DOMParser", "Element", "Event",
-        "ExternalInterface", "FlashPlayer", "Form", "Frame", "History",
-        "HTMLCollection", "HTMLDocument", "HTMLElement", "IFrame", "Image",
-        "Input", "JSObject", "KeyEvent", "Link", "Location", "MimeType",
-        "MouseEvent", "Navigator", "Node", "NodeList", "Option", "Plugin",
-        "ProcessingInstruction", "Range", "RangeException", "Screen", "Select",
-        "Table", "TableCell", "TableRow", "TableSelection", "Text", "TextArea",
-        "UIEvent", "Window", "XMLHttpRequest", "XMLSerializer",
-        "XPathException", "XPathResult", "XSLTProcessor",
-
-        // These keywords trigger the loading of the java-plugin. For the
-        // next-generation plugin, this results in starting a new Java process.
-        "java", "Packages", "netscape", "sun", "JavaObject", "JavaClass",
-        "JavaArray", "JavaMember",
-
-        // GWT-defined identifiers
-        "$wnd", "$doc", "$entry", "$moduleName", "$moduleBase", "$gwt_version", "$sessionId",
-
-        // Identifiers used by JsStackEmulator; later set to obfuscatable
-        "$stack", "$stackDepth", "$location",
-
-        // TODO: prove why this is necessary or remove it
-        "call"
-    };
-    for (int i = 0; i < commonBuiltins.length; i++) {
-      reservedGlobalSymbols.add(commonBuiltins[i]);
-    }
-  }
-
-  /**
-   * Returns true if the given string can not be used as property symbol. The check excludes
-   * keywords as JavaScript allow keywords as properties.
-   * @param s
-   * @return true if the given string must not be used as a property.
-   */
-  public static boolean isReservedPropertySymbol(String s) {
-    return reservedPropertySymbols.contains(s);
-  }
-
-  private static void initReservedPropertySymbols() {
-    // TODO(floitsch): fill in reserved property symbols.
-    reservedPropertySymbols.add("__PROTO__");
-    reservedPropertySymbols.add("prototype");
-  }
-
-  private JsReservedIdentifiers() {
-  }
-}