feat(transpiler): add support for getters

Author: vsavkin

tools/transpiler/spec/classes_spec.js

@@ -1,4 +1,4 @@
-import {describe, it, expect} from 'test_lib/test_lib';
+import {ddescribe, describe, it, expect} from 'test_lib/test_lib';
 import {CONST} from './fixtures/annotations';
 
 // Constructor
@@ -36,6 +36,16 @@ class SubConst extends Const {
  }
 }
 
+class HasGetters {
+ get getter():string {
+ return 'getter';
+ }
+
+ static get staticGetter():string {
+ return 'getter';
+ }
+}
+
 export function main() {
  describe('classes', function() {
  it('should work', function() {
@@ -60,6 +70,17 @@ export function main() {
  expect(subFoo.c).toBe(3);
  });
  });
+
+ describe("getters", function () {
+ it("should call instance getters", function () {
+ var obj = new HasGetters();
+ expect(obj.getter).toEqual('getter');
+ });
+
+ it("should call static getters", function () {
+ expect(HasGetters.staticGetter).toEqual('getter');
+ });
+ });
  });
 
 }

tools/transpiler/src/outputgeneration/DartParseTreeWriter.js

@@ -18,6 +18,10 @@ import {
  STATIC
 } from 'traceur/src/syntax/TokenType';
 
+import {
+ GET
+} from 'traceur/src/syntax/PredefinedName';
+
 import {ParseTreeWriter as JavaScriptParseTreeWriter, ObjectLiteralExpression} from 'traceur/src/outputgeneration/ParseTreeWriter';
 import {ImportedBinding, BindingIdentifier} from 'traceur/src/syntax/trees/ParseTrees';
 import {IdentifierToken} from 'traceur/src/syntax/IdentifierToken';
@@ -369,6 +373,21 @@ export class DartParseTreeWriter extends JavaScriptParseTreeWriter {
  this.writeSpace_()
  }
 
+ visitGetAccessor(tree) {
+ this.writeAnnotations_(tree.annotations);
+ if (tree.isStatic) {
+ this.write_(STATIC);
+ this.writeSpace_();
+ }
+ this.writeType_(tree.typeAnnotation);
+ this.writeSpace_();
+ this.write_(GET);
+ this.writeSpace_();
+ this.visitAny(tree.name);
+ this.writeSpace_();
+ this.visitAny(tree.body);
+ }
+
  visitNamedParameterList(tree) {
  this.writeList_(tree.parameterNameAndValues, COMMA, false);
  }