v2.3.3

Only for `--unsafe`.

Close #203

.travis.yml

@@ -0,0 +1,7 @@
+language: node_js
+node_js:
+    - "0.4"
+    - "0.6"
+    - "0.8"
+    - "0.10"
+    - "0.11"

README.md

@@ -1,5 +1,6 @@
 UglifyJS 2
 ==========
+[![Build Status](https://travis-ci.org/mishoo/UglifyJS2.png)](https://travis-ci.org/mishoo/UglifyJS2)
 
 UglifyJS is a JavaScript parser, minifier, compressor or beautifier toolkit.
 

lib/compress.js

@@ -1589,6 +1589,45 @@ merge(Compressor.prototype, {
                         operator: "+",
                         right: make_node(AST_String, self, { value: "" })
                     });
+                  case "Function":
+                    if (self.args[self.args.length - 1] instanceof AST_String) {
+                        // quite a corner-case, but we can handle it:
+                        //   https://github.com/mishoo/UglifyJS2/issues/203
+                        // if the code argument is a constant, then we can minify it.
+                        try {
+                            var code = "(function(" + self.args.slice(0, -1).map(function(arg){
+                                return arg.value;
+                            }).join(",") + "){" + self.args[self.args.length - 1].value + "})()";
+                            var ast = parse(code);
+                            ast.figure_out_scope();
+                            var comp = new Compressor(compressor.options);
+                            ast = ast.transform(comp);
+                            ast.figure_out_scope();
+                            ast.mangle_names();
+                            var fun = ast.body[0].body.expression;
+                            var args = fun.argnames.map(function(arg, i){
+                                return make_node(AST_String, self.args[i], {
+                                    value: arg.print_to_string()
+                                });
+                            });
+                            var code = OutputStream();
+                            AST_BlockStatement.prototype._codegen.call(fun, fun, code);
+                            code = code.toString().replace(/^\{|\}$/g, "");
+                            args.push(make_node(AST_String, self.args[self.args.length - 1], {
+                                value: code
+                            }));
+                            self.args = args;
+                            return self;
+                        } catch(ex) {
+                            if (ex instanceof JS_Parse_Error) {
+                                compressor.warn("Error parsing code passed to new Function [{file}:{line},{col}]", self.args[self.args.length - 1].start);
+                                compressor.warn(ex.toString());
+                            } else {
+                                console.log(ex);
+                            }
+                        }
+                    }
+                    break;
                 }
             }
             else if (exp instanceof AST_Dot && exp.property == "toString" && self.args.length == 0) {
@@ -1965,8 +2004,8 @@ merge(Compressor.prototype, {
         var prop = self.property;
         if (prop instanceof AST_String && compressor.option("properties")) {
             prop = prop.getValue();
-            if (compressor.option("screw_ie8") && RESERVED_WORDS(prop)
+            if ((compressor.option("screw_ie8") && RESERVED_WORDS(prop))
-                || !(RESERVED_WORDS(prop)) && is_identifier_string(prop)) {
+                || (!(RESERVED_WORDS(prop)) && is_identifier_string(prop))) {
                 return make_node(AST_Dot, self, {
                     expression : self.expression,
                     property   : prop

lib/parse.js

@@ -170,6 +170,7 @@ function is_identifier_char(ch) {
 function is_identifier_string(str){
     var i = str.length;
     if (i == 0) return false;
+    if (is_digit(str.charCodeAt(0))) return false;
     while (--i >= 0) {
         if (!is_identifier_char(str.charAt(i)))
             return false;

lib/transform.js

@@ -44,7 +44,6 @@
 "use strict";
 
 // Tree transformer helpers.
-// XXX: eventually I should refactor the compressor to use this infrastructure.
 
 function TreeTransformer(before, after) {
     TreeWalker.call(this);

package.json

@@ -3,7 +3,7 @@
     "description": "JavaScript parser, mangler/compressor and beautifier toolkit",
     "homepage": "http://lisperator.net/uglifyjs",
     "main": "tools/node.js",
-    "version": "2.3.2",
+    "version": "2.3.3",
     "engines": { "node" : ">=0.4.0" },
     "maintainers": [{
         "name": "Mihai Bazon",

test/compress/properties.js

@@ -20,6 +20,7 @@ dot_properties: {
         a["*"] = "asterisk";
         a["\u0EB3"] = "unicode";
         a[""] = "whitespace";
+        a["1_1"] = "foo";
     }
     expect: {
         a.foo = "bar";
@@ -27,6 +28,7 @@ dot_properties: {
         a["*"] = "asterisk";
         a.\u0EB3 = "unicode";
         a[""] = "whitespace";
+        a["1_1"] = "foo";
     }
 }