Strip more unused features.

test/main_test.ts

 /// <reference path="../typings/chai/chai.d.ts"/>
 /// <reference path="../typings/mocha/mocha.d.ts"/>
 /// <reference path="../typings/source-map/source-map.d.ts"/>
 import chai = require('chai');
 import main = require('../lib/main');
 
-import {expectTranslate, expectErroneousCode} from './test_support';
+import {expectTranslate} from './test_support';
 
 describe('main transpiler functionality', () => {
-  describe('comments', () => {
-    it('keeps leading comments', () => {
-      expectTranslate(`
-function f() {
-/* A */ a;
-/* B */ b;
-}`).to.equal(`f() {
-  /* A */ a;
-  /* B */ b;
+  describe(
+      'comments', () => {
+        it('keeps leading comments',
+           () => {
+             expectTranslate(`/* A */ var a;
+/* B */ var b;`).to.equal(`/* A */
+@JS()
+external get a;
+@JS()
+external set a(v);
+/* B */ @JS()
+external get b;
+@JS()
+external set b(v);`);
+             expectTranslate(`// A
+var a;
+// B
+var b;`).to.equal(`// A
+@JS()
+external get a;
+@JS()
+external set a(v);
+// B
+@JS()
+external get b;
+@JS()
+external set b(v);`);
+           });
+        it('keeps ctor comments', () => {
+          expectTranslate('/** A */ class A {\n /** ctor */ constructor() {}}').to.equal(`/** A */
+@JS()
+class A {
+  // @Ignore
+  A.fakeConstructor$();
+  /** ctor */ external factory A();
 }`);
-      expectTranslate(`function f() {
-// A
-a
-// B
-b
-}`).to.equal(`f() {
-  // A
-  a;
-  // B
-  b;
-}`);
-    });
-    it('keeps ctor comments', () => {
-      expectTranslate('/** A */ class A {\n /** ctor */ constructor() {}}').to.equal(`/** A */
-class A {
-  /** ctor */ A() {}
-}`);
-    });
-    it('translates links to dart doc format', () => {
-      expectTranslate('/** {@link this/place} */ a').to.equal('/** [this/place] */ a;');
-      expectTranslate('/* {@link 1} {@link 2} */ a').to.equal('/* [1] [2] */ a;');
-    });
-    it('removes @module doc tags', () => {
-      expectTranslate(`/** @module
-  * This is a module for doing X.
-  */`).to.equal(`/** 
-  * This is a module for doing X.
-  */`);
-    });
-    it('removes @description doc tags', () => {
-      expectTranslate(`/** @description
-  * This is a module for doing X.
-  */`).to.equal(`/** 
-  * This is a module for doing X.
-  */`);
-    });
-    it('removes @depracted doc tags', () => {
-      expectTranslate(`/**
-  * Use SomethingElse instead.
-  * @deprecated
-  */`).to.equal(`/**
-  * Use SomethingElse instead.
-  * 
-  */`);
-    });
-    it('removes @param doc tags', () => {
-      expectTranslate(`/**
-  * Method to do blah.
-  * @param doc Document.
-  */`).to.equal(`/**
-  * Method to do blah.
-  * 
-  */`);
-    });
-    it('removes @return doc tags', () => {
-      expectTranslate(`/**
-  * Method to do blah.
-  * @return {String}
-  */`).to.equal(`/**
-  * Method to do blah.
-  * 
-  */`);
-    });
-    it('removes @throws doc tags', () => {
-      expectTranslate(`/**
-  * Method to do blah.
-  * @throws ArgumentException If arguments are wrong
-  */`).to.equal(`/**
-  * Method to do blah.
-  * 
-  */`);
-    });
-  });
-
-  describe('errors', () => {
-    it('reports multiple errors', () => {
-      // Reports both the private field not having an underbar and protected being unsupported.
-      let errorLines = new RegExp(
-          'delete operator is unsupported\n' +
-          '.*void operator is unsupported');
-      expectErroneousCode('delete x["y"]; void z;').to.throw(errorLines);
-    });
-    it('reports relative paths in errors', () => {
-      chai.expect(() => expectTranslate({'/a/b/c.ts': 'delete x["y"];'}, {basePath: '/a'}))
-          .to.throw(/^b\/c.ts:1/);
-    });
-    it('reports errors across multiple files', () => {
-      expectErroneousCode({'a.ts': 'delete x["y"];', 'b.ts': 'delete x["y"];'}, {
-        failFast: false
-      }).to.throw(/^a\.ts.*\nb\.ts/);
-    });
-  });
+        });
+        it('translates links to dart doc format', () => {
+          expectTranslate('/** {@link this/place} */ var a').to.equal(`/** [this/place] */
+@JS()
+external get a;
+@JS()
+external set a(v);`);
+          expectTranslate('/* {@link 1} {@link 2} */ var a').to.equal(`/* [1] [2] */
+@JS()
+external get a;
+@JS()
+external set a(v);`);
+        });
+        it('removes @module doc tags', () => {
+          expectTranslate(`/** @module
+ * This is a module for doing X.
+ */`).to.equal(`/** 
+ * This is a module for doing X.
+ */`);
+        });
+        it('removes @description doc tags', () => {
+          expectTranslate(`/** @description
+ * This is a module for doing X.
+ */`).to.equal(`/** 
+ * This is a module for doing X.
+ */`);
+        });
+        it('removes @depracted doc tags', () => {
+          expectTranslate(`/**
+ * Use SomethingElse instead.
+ * @deprecated
+ */`).to.equal(`/**
+ * Use SomethingElse instead.
+ * 
+ */`);
+        });
+        it('removes @param doc tags', () => {
+          expectTranslate(`/**
+ * Method to do blah.
+ * @param doc Document.
+ */`).to.equal(`/**
+ * Method to do blah.
+ * 
+ */`);
+        });
+        it('removes @return doc tags', () => {
+          expectTranslate(`/**
+ * Method to do blah.
+ * @return {String}
+ */`).to.equal(`/**
+ * Method to do blah.
+ * 
+ */`);
+        });
+        it('removes @throws doc tags', () => {
+          expectTranslate(`/**
+ * Method to do blah.
+ * @throws ArgumentException If arguments are wrong
+ */`).to.equal(`/**
+ * Method to do blah.
+ * 
+ */`);
+        });
+      });
 
   describe('output paths', () => {
     it('writes within the path', () => {
       let transpiler = new main.Transpiler({basePath: '/a'});
       chai.expect(transpiler.getOutputPath('/a/b/c.js', '/x')).to.equal('/x/b/c.dart');
       chai.expect(transpiler.getOutputPath('b/c.js', '/x')).to.equal('/x/b/c.dart');
       chai.expect(transpiler.getOutputPath('b/c.js', 'x')).to.equal('x/b/c.dart');
       chai.expect(() => transpiler.getOutputPath('/outside/b/c.js', '/x'))
           .to.throw(/must be located under base/);
     });
     it('defaults to writing to the same location', () => {
       let transpiler = new main.Transpiler({basePath: undefined});
       chai.expect(transpiler.getOutputPath('/a/b/c.js', '/e')).to.equal('/a/b/c.dart');
       chai.expect(transpiler.getOutputPath('b/c.js', '')).to.equal('b/c.dart');
     });
     it('translates .es6, .ts, and .js', () => {
       let transpiler = new main.Transpiler({basePath: undefined});
       ['a.js', 'a.ts', 'a.es6'].forEach(
           (n) => { chai.expect(transpiler.getOutputPath(n, '')).to.equal('a.dart'); });
     });
   });
 });