Fix uglify attempting to rewrite invalid new expressions

1 files changed, 34 insertions, 0 deletions

diff --git a/test/mocha/new.js b/test/mocha/new.js
new file mode 100644
index 00000000..7e7aea7d
--- /dev/null
+++ b/test/mocha/new.js
@@ -0,0 +1,34 @@
+var assert = require("assert");
+var uglify = require("../../");
+
+describe("New", function() {
+    it("Should attach callback parens after some tokens", function() {
+        var tests = [
+            "new x(1);",
+            "new (function(foo){this.foo=foo;})(1);",
+            "new true;",
+            "new (0);",
+            "new (!0);",
+            "new (bar = function(foo) {this.foo=foo;})(123);"
+        ];
+        var expected = [
+            "new x(1);",
+            "new function(foo) {\n    this.foo = foo;\n}(1);",
+            "new true;",
+            "new 0;",
+            "new (!0);",
+            "new (bar = function(foo) {\n    this.foo = foo;\n})(123);"
+        ];
+        for (var i = 0; i < tests.length; i++) {
+            assert.strictEqual(
+                uglify.minify(tests[i], {
+                    fromString: true,
+                    output: {beautify: true},
+                    compress: false,
+                    mangle: false
+                }).code,
+                expected[i]
+            );
+        }
+    });
+});
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