Fixing Issue #744 -- you can now use reserved words as static properties of a class.

lib/lexer.js

@@ -29,7 +29,7 @@
       return (new Rewriter).rewrite(this.tokens);
     };
     Lexer.prototype.identifierToken = function() {
-      var closeIndex, forcedIdentifier, id, match, tag;
+      var forcedIdentifier, id, match, tag;
       if (!(match = IDENTIFIER.exec(this.chunk))) {
         return false;
       }
@@ -64,15 +64,9 @@
       }
       if (include(JS_FORBIDDEN, id)) {
         if (forcedIdentifier) {
-          tag = 'STRING';
-          id = ("\"" + id + "\"");
-          if (forcedIdentifier === 'accessor') {
-            closeIndex = true;
-            if (this.tag() !== '@') {
-              this.tokens.pop();
-            }
-            this.token('INDEX_START', '[');
-          }
+          tag = 'IDENTIFIER';
+          id = new String(id);
+          id.reserved = true;
         } else if (include(RESERVED, id)) {
           this.identifierError(id);
         }
@@ -88,9 +82,6 @@
         }
       }
       this.token(tag, id);
-      if (closeIndex) {
-        this.token(']', ']');
-      }
       return true;
     };
     Lexer.prototype.numberToken = function() {
@@ -335,7 +326,8 @@
       this.i += value.length;
       tag = value;
       if (value === '=') {
-        if (include(JS_FORBIDDEN, pval = this.value())) {
+        pval = this.value();
+        if (!pval.reserved && include(JS_FORBIDDEN, pval)) {
           this.assignmentError();
         }
         if (('or' === pval || 'and' === pval)) {

lib/nodes.js

@@ -263,11 +263,15 @@
     };
     LiteralNode.prototype.isPureStatement = LiteralNode.prototype.isStatement;
     LiteralNode.prototype.isComplex = NO;
+    LiteralNode.prototype.isReserved = function() {
+      return !!this.value.reserved;
+    };
     LiteralNode.prototype.compileNode = function(o) {
-      var end, idt;
+      var end, idt, val;
       idt = this.isStatement(o) ? this.idt() : '';
       end = this.isStatement(o) ? ';' : '';
-      return idt + this.value + end;
+      val = this.isReserved() ? ("\"" + (this.value) + "\"") : this.value;
+      return idt + val + end;
     };
     LiteralNode.prototype.toString = function() {
       return ' "' + this.value + '"';

src/lexer.coffee

@@ -100,12 +100,9 @@ exports.Lexer = class Lexer
             id = '!' + id
     if include JS_FORBIDDEN, id
       if forcedIdentifier
-        tag = 'STRING'
-        id  = "\"#{id}\""
-        if forcedIdentifier is 'accessor'
-          closeIndex = on
-          @tokens.pop() if @tag() isnt '@'
-          @token 'INDEX_START', '['
+        tag = 'IDENTIFIER'
+        id  = new String id
+        id.reserved = yes
       else if include(RESERVED, id)
         @identifierError id
     unless forcedIdentifier
@@ -115,7 +112,6 @@ exports.Lexer = class Lexer
       else if include LOGIC, id
         tag = 'LOGIC'
     @token tag, id
-    @token ']', ']' if closeIndex
     true
 
   # Matches numbers, including decimals, hex, and exponential notation.
@@ -312,7 +308,8 @@ exports.Lexer = class Lexer
     @i += value.length
     tag = value
     if value is '='
-      @assignmentError() if include JS_FORBIDDEN, pval = @value()
+      pval = @value()
+      @assignmentError() if not pval.reserved and include JS_FORBIDDEN, pval
       if pval in ['or', 'and']
         prev = last @tokens
         prev[0] = 'COMPOUND_ASSIGN'

src/nodes.coffee

@@ -248,10 +248,14 @@ exports.LiteralNode = class LiteralNode extends BaseNode
 
   isComplex: NO
 
+  isReserved: ->
+    !!@value.reserved
+
   compileNode: (o) ->
     idt = if @isStatement(o) then @idt() else ''
     end = if @isStatement(o) then ';' else ''
-    idt + @value + end
+    val = if @isReserved()   then "\"#{@value}\"" else @value
+    idt + val + end
 
   toString: -> ' "' + @value + '"'
 

test/test_classes.coffee

@@ -51,6 +51,8 @@ ok (new SubClass).prop is 'top-super-sub'
 
 
 class OneClass
+  @new: 'new'
+  function: 'function'
   constructor: (name) -> @name = name
 
 class TwoClass extends OneClass
@@ -58,6 +60,8 @@ class TwoClass extends OneClass
 Function.prototype.new = -> new this arguments...
 
 ok (TwoClass.new('three')).name is 'three'
+ok (new OneClass).function is 'function'
+ok OneClass.new is 'new'
 
 delete Function.prototype.new