From cfa716d6ed9961eb733a393d2b2446d730bbc2c2 Mon Sep 17 00:00:00 2001
From: Patrice Chalin <pchalin@gmail.com>
Date: Wed, 18 Mar 2015 15:14:26 -0700
Subject: [PATCH] Support enums
Fixes #10.
---
main.ts | 22 ++++++++++++++++++++++
test/DartTest.ts | 19 +++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/main.ts b/main.ts
index 6bcd4b4..2c0021a 100644
--- a/main.ts
+++ b/main.ts
@@ -341,6 +341,28 @@ class Translator {
this.visitClassLike(ifDecl);
break;
+ case ts.SyntaxKind.EnumDeclaration:
+ var decl = <ts.EnumDeclaration>node;
+ this.emit('enum');
+ this.visit(decl.name);
+ this.emit('{');
+ // Enums can be empty in TS ...
+ if (decl.members.length === 0) {
+ // ... but not in Dart.
+ this.reportError(node, 'empty enums are not supported');
+ }
+ this.visitList(decl.members);
+ this.emit('}');
+ break;
+
+ case ts.SyntaxKind.EnumMember:
+ var member = <ts.EnumMember>node;
+ this.visit(member.name);
+ if (member.initializer) {
+ this.reportError(node, 'enum initializers are not supported');
+ }
+ break;
+
case ts.SyntaxKind.HeritageClause:
var heritageClause = <ts.HeritageClause>node;
if (heritageClause.token === ts.SyntaxKind.ExtendsKeyword) {
diff --git a/test/DartTest.ts b/test/DartTest.ts
index 4c3be36..edcd22c 100644
--- a/test/DartTest.ts
+++ b/test/DartTest.ts
@@ -1,4 +1,5 @@
/// <reference path="../typings/chai/chai.d.ts"/>
+/// <reference path="../typings/mocha/mocha.d.ts"/>
/// <reference path="../typings/source-map-support/source-map-support.d.ts"/>
import sms = require('source-map-support');
@@ -107,6 +108,24 @@ describe('transpile to dart', () => {
});
});
+ describe('enums', () => {
+ it('should support basic enum declaration', () => {
+ expectTranslate('enum Color { Red, Green, Blue }')
+ .to.equal(' enum Color { Red , Green , Blue }');
+ });
+ it('does not support empty enum', () => {
+ chai.expect(() => translateSource('enum Empty { }'))
+ .to.throw('empty enums are not supported');
+ });
+ it('does not support enum with initializer', () => {
+ chai.expect(() => translateSource('enum Color { Red = 1, Green, Blue = 4 }'))
+ .to.throw('enum initializers are not supported');
+ });
+ it('should support switch over enum', () => {
+ expectTranslate('switch(c) { case Color.Red: break; default: break; }')
+ .to.equal(' switch ( c ) { case Color . Red : break ; default : break ; }');
+ });
+ });
describe('functions', () => {
it('supports declarations',