hopefully the last enhancement for my #1380 fix

lib/lexer.js

@@ -617,7 +617,7 @@
   JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED);
   exports.RESERVED = RESERVED.concat(JS_KEYWORDS).concat(COFFEE_KEYWORDS);
   IDENTIFIER = /^([$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)([^\n\S]*:(?!:))?/;
-  NUMBER = /^0x[\da-f]+|^(?:\d+(\.\d+)?|\.\d+)(?:e[+-]?\d+)?/i;
+  NUMBER = /^0x[\da-f]+|^\d*\.?\d+(?:e[+-]?\d+)?/i;
   HEREDOC = /^("""|''')([\s\S]*?)(?:\n[^\n\S]*)?\1/;
   OPERATOR = /^(?:[-=]>|[-+*\/%<>&|^!?=]=|>>>=?|([-+:])\1|([&|<>])\2=?|\?\.|\.{2,3})/;
   WHITESPACE = /^[^\n\S]+/;

lib/nodes.js

@@ -589,7 +589,7 @@
         throw SyntaxError('cannot call super outside of a function.');
       }
       name = method.name;
-      if (!name) {
+      if (name == null) {
         throw SyntaxError('cannot call super on an anonymous function.');
       }
       if (method.klass) {
@@ -1140,7 +1140,7 @@
       return unfoldSoak(o, this, 'variable');
     };
     Assign.prototype.compileNode = function(o) {
-      var isValue, match, name, val, _ref2, _ref3, _ref4;
+      var isValue, match, name, val, _ref2, _ref3, _ref4, _ref5;
       if (isValue = this.variable instanceof Value) {
         if (this.variable.isArray() || this.variable.isObject()) {
           return this.compilePatternMatch(o);
@@ -1167,7 +1167,7 @@
         if (match[1]) {
           this.value.klass = match[1];
         }
-        this.value.name = (_ref3 = (_ref4 = match[2]) != null ? _ref4 : match[3]) != null ? _ref3 : match[4];
+        this.value.name = (_ref3 = (_ref4 = (_ref5 = match[2]) != null ? _ref5 : match[3]) != null ? _ref4 : match[4]) != null ? _ref3 : match[5];
       }
       val = this.value.compile(o, LEVEL_LIST);
       if (this.context === 'object') {
@@ -2263,7 +2263,7 @@
   IDENTIFIER_STR = "[$A-Za-z_\\x7f-\\uffff][$\\w\\x7f-\\uffff]*";
   IDENTIFIER = RegExp("^" + IDENTIFIER_STR + "$");
   SIMPLENUM = /^[+-]?\d+$/;
-  METHOD_DEF = RegExp("^(?:(" + IDENTIFIER_STR + ")\\.prototype(?:\\.(" + IDENTIFIER_STR + ")|\\[(\"(?:[^\"\\r\\n]|\\\\\")*\"|'(?:[^'\\r\\n]|\\\\')*')\\]))|(" + IDENTIFIER_STR + ")$");
+  METHOD_DEF = RegExp("^(?:(" + IDENTIFIER_STR + ")\\.prototype(?:\\.(" + IDENTIFIER_STR + ")|\\[(\"(?:[^\\\\\"\\r\\n]|\\\\.)*\"|'(?:[^\\\\'\\r\\n]|\\\\.)*')\\]|\\[(0x[\\da-fA-F]+|\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\]))|(" + IDENTIFIER_STR + ")$");
   IS_STRING = /^['"]/;
   utility = function(name) {
     var ref;

src/lexer.coffee

@@ -554,7 +554,7 @@ IDENTIFIER = /// ^
 
 NUMBER     = ///
   ^ 0x[\da-f]+ |                              # hex
-  ^ (?: \d+(\.\d+)? | \.\d+ ) (?:e[+-]?\d+)?  # decimal
+  ^ \d*\.?\d+ (?:e[+-]?\d+)?  # decimal
 ///i
 
 HEREDOC    = /// ^ ("""|''') ([\s\S]*?) (?:\n[^\n\S]*)? \1 ///

src/nodes.coffee

@@ -467,7 +467,7 @@ exports.Call = class Call extends Base
     {method} = o.scope
     throw SyntaxError 'cannot call super outside of a function.' unless method
     {name} = method
-    throw SyntaxError 'cannot call super on an anonymous function.' unless name
+    throw SyntaxError 'cannot call super on an anonymous function.' unless name?
     if method.klass
       (new Value (new Literal method.klass), [new Access(new Literal "__super__"), new Access new Literal name]).compile o
     else
@@ -934,7 +934,7 @@ exports.Assign = class Assign extends Base
         o.scope.find name
     if @value instanceof Code and match = METHOD_DEF.exec name
       @value.klass = match[1] if match[1]
-      @value.name  = match[2] ? match[3] ? match[4]
+      @value.name  = match[2] ? match[3] ? match[4] ? match[5]
     val = @value.compile o, LEVEL_LIST
     return "#{name}: #{val}" if @context is 'object'
     val = name + " #{ @context or '=' } " + val
@@ -1802,19 +1802,19 @@ IDENTIFIER_STR = "[$A-Za-z_\\x7f-\\uffff][$\\w\\x7f-\\uffff]*"
 IDENTIFIER = /// ^ #{IDENTIFIER_STR} $ ///
 SIMPLENUM  = /^[+-]?\d+$/
 METHOD_DEF = ///
-	^
-		(?:
-			(#{IDENTIFIER_STR})
-			\.prototype
-				(?:
-					\.(#{IDENTIFIER_STR})
-				|
-					\[("(?:[^"\r\n]|\\")*"|'(?:[^'\r\n]|\\')*')\]
-				)
-		)
-	|
-		(#{IDENTIFIER_STR})
-	$
+  ^
+    (?:
+      (#{IDENTIFIER_STR})
+      \.prototype
+      (?:
+        \.(#{IDENTIFIER_STR})
+      | \[("(?:[^\\"\r\n]|\\.)*"|'(?:[^\\'\r\n]|\\.)*')\]
+      | \[(0x[\da-fA-F]+ | \d*\.?\d+ (?:[eE][+-]?\d+)?)\]
+      )
+    )
+  |
+    (#{IDENTIFIER_STR})
+  $
 ///
 
 # Is a literal value a string?

test/classes.coffee

@@ -486,3 +486,7 @@ test "#1380: `super` with reserved names", ->
   class C
     do: -> super
   ok C::do
+
+  class B
+    0: -> super
+  ok B::[0]