fixing extra spaces in nested empty functions. Issue #527

lib/lexer.js

@@ -17,7 +17,7 @@
   starts = _c.starts;
   compact = _c.compact;
   exports.Lexer = (function() {
-    Lexer = function() {    };
+    Lexer = function() {};
     Lexer.prototype.tokenize = function(code, options) {
       var o;
       code = code.replace(/(\r|\s+$)/g, '');

lib/nodes.js

@@ -26,7 +26,7 @@
   starts = _a.starts;
   ends = _a.ends;
   exports.BaseNode = (function() {
-    BaseNode = function() {    };
+    BaseNode = function() {};
     BaseNode.prototype.compile = function(o) {
       var closure, top;
       this.options = merge(o || {});
@@ -984,7 +984,7 @@
         (o.scope.parameter(param));
       }
       code = this.body.expressions.length ? ("\n" + (this.body.compileWithDeclarations(o)) + "\n") : '';
-      func = ("function(" + (params.join(', ')) + ") {" + code + (this.idt(this.bound ? 1 : 0)) + "}");
+      func = ("function(" + (params.join(', ')) + ") {" + code + (code && this.idt(this.bound ? 1 : 0)) + "}");
       if (top && !this.bound) {
         func = ("(" + func + ")");
       }

lib/rewriter.js

@@ -11,7 +11,7 @@
   _b = helpers;
   include = _b.include;
   exports.Rewriter = (function() {
-    Rewriter = function() {    };
+    Rewriter = function() {};
     Rewriter.prototype.rewrite = function(tokens) {
       this.tokens = tokens;
       this.adjustComments();

src/nodes.coffee

@@ -882,7 +882,7 @@ exports.CodeNode: class CodeNode extends BaseNode
     @body.makeReturn()
     (o.scope.parameter(param)) for param in params
     code: if @body.expressions.length then "\n${ @body.compileWithDeclarations(o) }\n" else ''
-    func: "function(${ params.join(', ') }) {$code${@idt(if @bound then 1 else 0)}}"
+    func: "function(${ params.join(', ') }) {$code${ code and @idt(if @bound then 1 else 0) }}"
     func: "($func)" if top and not @bound
     return func unless @bound
     inner: "(function() {\n${@idt(2)}return __func.apply(__this, arguments);\n${@idt(1)}});"