The moment of truth: CoffeeScript has now compiled itself ten times over.

lib/coffee_script/command_line.js

@@ -27,8 +27,7 @@
   exports.compile = function compile(script, source) {
     var options;
     source = source || 'error';
-    options = {
-    };
+    options = {};
     if (this.options.no_wrap) {
       options.no_wrap = true;
     }
@@ -94,8 +93,7 @@
   // Use OptionParser for all the options.
   exports.parse_options = function parse_options() {
     var oparser, opts, paths;
-    opts = (this.options = {
-    });
+    opts = (this.options = {});
     oparser = (this.option_parser = new optparse.OptionParser(SWITCHES));
     oparser.add = oparser['on'];
     oparser.add('interactive', function() {

lib/coffee_script/grammar.js

@@ -519,8 +519,7 @@
   };
   // Helpers ==============================================================
   // Make the Jison parser.
-  bnf = {
-  };
+  bnf = {};
   tokens = [];
   __a = grammar;
   for (name in __a) {

lib/coffee_script/nodes.js

@@ -5,7 +5,7 @@
   // Some helper functions
   // Tabs are two spaces for pretty printing.
   TAB = '  ';
-  TRAILING_WHITESPACE = /\s+$/g;
+  TRAILING_WHITESPACE = /\s+$/gm;
   // Keep the identifier regex in sync with the Lexer.
   IDENTIFIER = /^[a-zA-Z$_](\w|\$)*$/;
   // Flatten nested arrays recursively.
@@ -46,8 +46,7 @@
       }
       return __a;
     } else {
-      output = {
-      };
+      output = {};
       __d = input;
       for (key in __d) {
         val = __d[key];
@@ -61,8 +60,7 @@
   // Merge objects.
   merge = function merge(src, dest) {
     var __a, __b, fresh, key, val;
-    fresh = {
-    };
+    fresh = {};
     __a = src;
     for (key in __a) {
       val = __a[key];
@@ -144,8 +142,7 @@
   // already been asked to return the result.
   Node.prototype.compile = function compile(o) {
     var closure, top;
-    this.options = dup(o || {
-    });
+    this.options = dup(o || {});
     this.indent = o.indent;
     top = this.top_sensitive() ? this.options.top : del(this.options, 'top');
     closure = this.is_statement() && !this.is_statement_only() && !top && !this.options.returns && !(this instanceof CommentNode) && !this.contains(function(node) {
@@ -245,8 +242,7 @@
       return node === this.expressions[l - last_index];
     },
     compile: function compile(o) {
-      o = o || {
-      };
+      o = o || {};
       return o.scope ? Node.prototype.compile.call(this, o) : this.compile_root(o);
     },
     // Compile each expression in the Expressions body.
@@ -525,11 +521,11 @@
     },
     // Hooking one constructor into another's prototype chain.
     compile_node: function compile_node(o) {
-      var child, constructor, parent;
-      constructor = o.scope.free_variable();
+      var child, construct, parent;
+      construct = o.scope.free_variable();
       child = this.child.compile(o);
       parent = this.parent.compile(o);
-      return this.idt() + constructor + ' = function(){};\n' + this.idt() + constructor + '.prototype = ' + parent + ".prototype;\n" + this.idt() + child + '.__superClass__ = ' + parent + ".prototype;\n" + this.idt() + child + '.prototype = new ' + constructor + "();\n" + this.idt() + child + '.prototype.constructor = ' + child + ';';
+      return this.idt() + construct + ' = function(){};\n' + this.idt() + construct + '.prototype = ' + parent + ".prototype;\n" + this.idt() + child + '.__superClass__ = ' + parent + ".prototype;\n" + this.idt() + child + '.prototype = new ' + construct + "();\n" + this.idt() + child + '.prototype.constructor = ' + child + ';';
     }
   }));
   statement(ExtendsNode);
@@ -1215,8 +1211,7 @@
       this.body = body && body.unwrap();
       this.else_body = else_body && else_body.unwrap();
       this.children = compact([this.condition, this.body, this.else_body]);
-      this.tags = tags || {
-      };
+      this.tags = tags || {};
       if (this.condition instanceof Array) {
         this.multiple = true;
       }

lib/coffee_script/rewriter.js

@@ -32,8 +32,7 @@
   IMPLICIT_END = ['IF', 'UNLESS', 'FOR', 'WHILE', 'TERMINATOR', 'OUTDENT'];
   IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'TRY', 'DELETE', 'TYPEOF', 'SWITCH', 'TRUE', 'FALSE', 'YES', 'NO', 'ON', 'OFF', '!', '!!', 'NOT', '@', '->', '=>', '[', '(', '{'];
   // The inverse mappings of token pairs we're trying to fix up.
-  INVERSES = {
-  };
+  INVERSES = {};
   __g = BALANCED_PAIRS;
   for (__h = 0; __h < __g.length; __h++) {
     pair = __g[__h];
@@ -266,8 +265,7 @@
   // the course of the token stream.
   re.prototype.ensure_balance = function ensure_balance(pairs) {
     var __i, __j, key, levels, unclosed, value;
-    levels = {
-    };
+    levels = {};
     this.scan_tokens((function(__this) {
       var __func = function(prev, token, post, i) {
         var __i, __j, __k, close, open;
@@ -322,11 +320,11 @@
   //    it with the inverse of what we've just popped.
   // 3. Keep track of "debt" for tokens that we fake, to make sure we end
   //    up balanced in the end.
+  //
   re.prototype.rewrite_closing_parens = function rewrite_closing_parens() {
     var __i, debt, key, stack, val;
     stack = [];
-    debt = {
-    };
+    debt = {};
     __i = INVERSES;
     for (key in __i) {
       val = __i[key];

lib/coffee_script/scope.js

@@ -12,8 +12,7 @@
     this.parent = parent;
     this.expressions = expressions;
     this.method = method;
-    this.variables = {
-    };
+    this.variables = {};
     this.temp_variable = this.parent ? this.parent.temp_variable : '__a';
     return this;
   });

src/nodes.coffee

@@ -4,7 +4,7 @@ process.mixin require './scope'
 
 # Tabs are two spaces for pretty printing.
 TAB: '  '
-TRAILING_WHITESPACE: /\s+$/g
+TRAILING_WHITESPACE: /\s+$/gm
 
 # Keep the identifier regex in sync with the Lexer.
 IDENTIFIER:   /^[a-zA-Z$_](\w|\$)*$/
@@ -382,13 +382,13 @@ ExtendsNode: exports.ExtendsNode: inherit Node, {
 
   # Hooking one constructor into another's prototype chain.
   compile_node: (o) ->
-    constructor:  o.scope.free_variable()
-    child:        @child.compile(o)
-    parent:       @parent.compile(o)
-    @idt() + constructor + ' = function(){};\n' + @idt() +
-      constructor + '.prototype = ' + parent + ".prototype;\n" + @idt() +
+    construct:  o.scope.free_variable()
+    child:      @child.compile(o)
+    parent:     @parent.compile(o)
+    @idt() + construct + ' = function(){};\n' + @idt() +
+      construct + '.prototype = ' + parent + ".prototype;\n" + @idt() +
       child + '.__superClass__ = ' + parent + ".prototype;\n" + @idt() +
-      child + '.prototype = new ' + constructor + "();\n" + @idt() +
+      child + '.prototype = new ' + construct + "();\n" + @idt() +
       child + '.prototype.constructor = ' + child + ';'
 
 }