316 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			316 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
| import {
 | |
|   AsyncTestCompleter,
 | |
|   beforeEach,
 | |
|   ddescribe,
 | |
|   describe,
 | |
|   el,
 | |
|   expect,
 | |
|   iit,
 | |
|   inject,
 | |
|   it,
 | |
|   xit,
 | |
|   TestComponentBuilder
 | |
| } from 'angular2/testing_internal';
 | |
| 
 | |
| import {isBlank} from 'angular2/src/facade/lang';
 | |
| import {DartEmitter} from 'angular2/src/compiler/output/dart_emitter';
 | |
| import {CompileIdentifierMetadata} from 'angular2/src/compiler/compile_metadata';
 | |
| import * as o from 'angular2/src/compiler/output/output_ast';
 | |
| 
 | |
| var someModuleUrl = 'asset:somePackage/lib/somePath';
 | |
| var anotherModuleUrl = 'asset:somePackage/lib/someOtherPath';
 | |
| 
 | |
| var sameModuleIdentifier =
 | |
|     new CompileIdentifierMetadata({name: 'someLocalId', moduleUrl: someModuleUrl});
 | |
| 
 | |
| var externalModuleIdentifier =
 | |
|     new CompileIdentifierMetadata({name: 'someExternalId', moduleUrl: anotherModuleUrl});
 | |
| 
 | |
| export function main() {
 | |
|   // Not supported features of our OutputAst in Dart:
 | |
|   // - declaring what should be exported via a special statement like `export`.
 | |
|   //   Dart exports everything that has no `_` in its name.
 | |
|   // - declaring private fields via a statement like `private`.
 | |
|   //   Dart exports everything that has no `_` in its name.
 | |
|   // - return types for function expressions
 | |
| 
 | |
|   describe('DartEmitter', () => {
 | |
|     var emitter: DartEmitter;
 | |
|     var someVar: o.ReadVarExpr;
 | |
| 
 | |
|     beforeEach(() => {
 | |
|       emitter = new DartEmitter();
 | |
|       someVar = o.variable('someVar');
 | |
|     });
 | |
| 
 | |
|     function emitStmt(stmt: o.Statement, exportedVars: string[] = null): string {
 | |
|       if (isBlank(exportedVars)) {
 | |
|         exportedVars = [];
 | |
|       }
 | |
|       return emitter.emitStatements(someModuleUrl, [stmt], exportedVars);
 | |
|     }
 | |
| 
 | |
|     it('should declare variables', () => {
 | |
|       expect(emitStmt(someVar.set(o.literal(1)).toDeclStmt())).toEqual(`var someVar = 1;`);
 | |
|       expect(emitStmt(someVar.set(o.literal(1)).toDeclStmt(null, [o.StmtModifier.Final])))
 | |
|           .toEqual(`final someVar = 1;`);
 | |
|       expect(emitStmt(someVar.set(o.literal(1, new o.BuiltinType(o.BuiltinTypeName.Int,
 | |
|                                                                  [o.TypeModifier.Const])))
 | |
|                           .toDeclStmt(null, [o.StmtModifier.Final])))
 | |
|           .toEqual(`const int someVar = 1;`);
 | |
|       expect(emitStmt(someVar.set(o.literal(1)).toDeclStmt(), ['someVar']))
 | |
|           .toEqual(`var someVar = 1;`);
 | |
|       expect(emitStmt(someVar.set(o.literal(1)).toDeclStmt(o.INT_TYPE)))
 | |
|           .toEqual(`int someVar = 1;`);
 | |
|     });
 | |
| 
 | |
|     it('should read and write variables', () => {
 | |
|       expect(emitStmt(someVar.toStmt())).toEqual(`someVar;`);
 | |
|       expect(emitStmt(someVar.set(o.literal(1)).toStmt())).toEqual(`someVar = 1;`);
 | |
|       expect(emitStmt(someVar.set(o.variable('someOtherVar').set(o.literal(1))).toStmt()))
 | |
|           .toEqual(`someVar = (someOtherVar = 1);`);
 | |
|     });
 | |
| 
 | |
|     it('should read and write keys', () => {
 | |
|       expect(emitStmt(o.variable('someMap').key(o.variable('someKey')).toStmt()))
 | |
|           .toEqual(`someMap[someKey];`);
 | |
|       expect(emitStmt(o.variable('someMap').key(o.variable('someKey')).set(o.literal(1)).toStmt()))
 | |
|           .toEqual(`someMap[someKey] = 1;`);
 | |
|     });
 | |
| 
 | |
|     it('should read and write properties', () => {
 | |
|       expect(emitStmt(o.variable('someObj').prop('someProp').toStmt()))
 | |
|           .toEqual(`someObj.someProp;`);
 | |
|       expect(emitStmt(o.variable('someObj').prop('someProp').set(o.literal(1)).toStmt()))
 | |
|           .toEqual(`someObj.someProp = 1;`);
 | |
|     });
 | |
| 
 | |
|     it('should invoke functions and methods and constructors', () => {
 | |
|       expect(emitStmt(o.variable('someFn').callFn([o.literal(1)]).toStmt())).toEqual('someFn(1);');
 | |
|       expect(emitStmt(o.variable('someObj').callMethod('someMethod', [o.literal(1)]).toStmt()))
 | |
|           .toEqual('someObj.someMethod(1);');
 | |
|       expect(emitStmt(o.variable('SomeClass').instantiate([o.literal(1)]).toStmt()))
 | |
|           .toEqual('new SomeClass(1);');
 | |
|     });
 | |
| 
 | |
|     it('should support builtin methods', () => {
 | |
|       expect(emitStmt(o.variable('arr1')
 | |
|                           .callMethod(o.BuiltinMethod.ConcatArray, [o.variable('arr2')])
 | |
|                           .toStmt()))
 | |
|           .toEqual('arr1..addAll(arr2);');
 | |
| 
 | |
|       expect(emitStmt(o.variable('observable')
 | |
|                           .callMethod(o.BuiltinMethod.SubscribeObservable, [o.variable('listener')])
 | |
|                           .toStmt()))
 | |
|           .toEqual('observable.listen(listener);');
 | |
| 
 | |
|       expect(
 | |
|           emitStmt(
 | |
|               o.variable('fn').callMethod(o.BuiltinMethod.bind, [o.variable('someObj')]).toStmt()))
 | |
|           .toEqual('fn;');
 | |
|     });
 | |
| 
 | |
|     it('should support literals', () => {
 | |
|       expect(emitStmt(o.literal(0).toStmt())).toEqual('0;');
 | |
|       expect(emitStmt(o.literal(true).toStmt())).toEqual('true;');
 | |
|       expect(emitStmt(o.literal('someStr').toStmt())).toEqual(`'someStr';`);
 | |
|       expect(emitStmt(o.literal('$a').toStmt())).toEqual(`'\\$a';`);
 | |
|       expect(emitStmt(o.literalArr([o.literal(1)]).toStmt())).toEqual(`[1];`);
 | |
|       expect(emitStmt(o.literalMap([['someKey', o.literal(1)]]).toStmt()))
 | |
|           .toEqual(`{'someKey': 1};`);
 | |
|       expect(emitStmt(
 | |
|                  o.literalMap([['someKey', o.literal(1)]], new o.MapType(o.NUMBER_TYPE)).toStmt()))
 | |
|           .toEqual(`<String, num>{'someKey': 1};`);
 | |
|     });
 | |
| 
 | |
|     it('should support external identifiers', () => {
 | |
|       expect(emitStmt(o.importExpr(sameModuleIdentifier).toStmt())).toEqual('someLocalId;');
 | |
|       expect(emitStmt(o.importExpr(externalModuleIdentifier).toStmt()))
 | |
|           .toEqual([`import 'someOtherPath' as import0;`, `import0.someExternalId;`].join('\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support operators', () => {
 | |
|       var lhs = o.variable('lhs');
 | |
|       var rhs = o.variable('rhs');
 | |
|       expect(emitStmt(someVar.cast(o.INT_TYPE).toStmt())).toEqual('(someVar as int);');
 | |
|       expect(emitStmt(o.not(someVar).toStmt())).toEqual('!someVar;');
 | |
|       expect(
 | |
|           emitStmt(someVar.conditional(o.variable('trueCase'), o.variable('falseCase')).toStmt()))
 | |
|           .toEqual('(someVar? trueCase: falseCase);');
 | |
| 
 | |
|       expect(emitStmt(lhs.equals(rhs).toStmt())).toEqual('(lhs == rhs);');
 | |
|       expect(emitStmt(lhs.notEquals(rhs).toStmt())).toEqual('(lhs != rhs);');
 | |
|       expect(emitStmt(lhs.identical(rhs).toStmt())).toEqual('identical(lhs, rhs);');
 | |
|       expect(emitStmt(lhs.notIdentical(rhs).toStmt())).toEqual('!identical(lhs, rhs);');
 | |
|       expect(emitStmt(lhs.minus(rhs).toStmt())).toEqual('(lhs - rhs);');
 | |
|       expect(emitStmt(lhs.plus(rhs).toStmt())).toEqual('(lhs + rhs);');
 | |
|       expect(emitStmt(lhs.divide(rhs).toStmt())).toEqual('(lhs / rhs);');
 | |
|       expect(emitStmt(lhs.multiply(rhs).toStmt())).toEqual('(lhs * rhs);');
 | |
|       expect(emitStmt(lhs.modulo(rhs).toStmt())).toEqual('(lhs % rhs);');
 | |
|       expect(emitStmt(lhs.and(rhs).toStmt())).toEqual('(lhs && rhs);');
 | |
|       expect(emitStmt(lhs.or(rhs).toStmt())).toEqual('(lhs || rhs);');
 | |
|       expect(emitStmt(lhs.lower(rhs).toStmt())).toEqual('(lhs < rhs);');
 | |
|       expect(emitStmt(lhs.lowerEquals(rhs).toStmt())).toEqual('(lhs <= rhs);');
 | |
|       expect(emitStmt(lhs.bigger(rhs).toStmt())).toEqual('(lhs > rhs);');
 | |
|       expect(emitStmt(lhs.biggerEquals(rhs).toStmt())).toEqual('(lhs >= rhs);');
 | |
|     });
 | |
| 
 | |
|     it('should support function expressions', () => {
 | |
|       expect(emitStmt(o.fn([], []).toStmt())).toEqual(['() {', '};'].join('\n'));
 | |
|       expect(emitStmt(o.fn([new o.FnParam('param1', o.INT_TYPE)], []).toStmt()))
 | |
|           .toEqual(['(int param1) {', '};'].join('\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support function statements', () => {
 | |
|       expect(emitStmt(new o.DeclareFunctionStmt('someFn', [], [])))
 | |
|           .toEqual(['void someFn() {', '}'].join('\n'));
 | |
|       expect(emitStmt(new o.DeclareFunctionStmt('someFn', [], [new o.ReturnStatement(o.literal(1))],
 | |
|                                                 o.INT_TYPE)))
 | |
|           .toEqual(['int someFn() {', '  return 1;', '}'].join('\n'));
 | |
|       expect(
 | |
|           emitStmt(new o.DeclareFunctionStmt('someFn', [new o.FnParam('param1', o.INT_TYPE)], [])))
 | |
|           .toEqual(['void someFn(int param1) {', '}'].join('\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support comments',
 | |
|        () => { expect(emitStmt(new o.CommentStmt('a\nb'))).toEqual(['// a', '// b'].join('\n')); });
 | |
| 
 | |
|     it('should support if stmt', () => {
 | |
|       var trueCase = o.variable('trueCase').callFn([]).toStmt();
 | |
|       var falseCase = o.variable('falseCase').callFn([]).toStmt();
 | |
|       expect(emitStmt(new o.IfStmt(o.variable('cond'), [trueCase])))
 | |
|           .toEqual(['if (cond) { trueCase(); }'].join('\n'));
 | |
|       expect(emitStmt(new o.IfStmt(o.variable('cond'), [trueCase], [falseCase])))
 | |
|           .toEqual(['if (cond) {', '  trueCase();', '} else {', '  falseCase();', '}'].join('\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support try/catch', () => {
 | |
|       var bodyStmt = o.variable('body').callFn([]).toStmt();
 | |
|       var catchStmt = o.variable('catchFn').callFn([o.CATCH_ERROR_VAR, o.CATCH_STACK_VAR]).toStmt();
 | |
|       expect(emitStmt(new o.TryCatchStmt([bodyStmt], [catchStmt])))
 | |
|           .toEqual(
 | |
|               ['try {', '  body();', '} catch (error, stack) {', '  catchFn(error,stack);', '}']
 | |
|                   .join('\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support support throwing',
 | |
|        () => { expect(emitStmt(new o.ThrowStmt(someVar))).toEqual('throw someVar;'); });
 | |
| 
 | |
|     describe('classes', () => {
 | |
|       var callSomeMethod: o.Statement;
 | |
| 
 | |
|       beforeEach(() => { callSomeMethod = o.THIS_EXPR.callMethod('someMethod', []).toStmt(); });
 | |
| 
 | |
|       it('should support declaring classes', () => {
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [], null, [])))
 | |
|             .toEqual(['class SomeClass {', '}'].join('\n'));
 | |
|         expect(
 | |
|             emitStmt(new o.ClassStmt('SomeClass', o.variable('SomeSuperClass'), [], [], null, [])))
 | |
|             .toEqual(['class SomeClass extends SomeSuperClass {', '}'].join('\n'));
 | |
|       });
 | |
| 
 | |
|       it('should support declaring constructors', () => {
 | |
|         var superCall = o.SUPER_EXPR.callFn([o.variable('someParam')]).toStmt();
 | |
|         expect(emitStmt(
 | |
|                    new o.ClassStmt('SomeClass', null, [], [], new o.ClassMethod(null, [], []), [])))
 | |
|             .toEqual(['class SomeClass {', '  SomeClass() {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt(
 | |
|                    'SomeClass', null, [], [],
 | |
|                    new o.ClassMethod(null, [new o.FnParam('someParam', o.INT_TYPE)], []), [])))
 | |
|             .toEqual(['class SomeClass {', '  SomeClass(int someParam) {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [],
 | |
|                                         new o.ClassMethod(null, [], [superCall]), [])))
 | |
|             .toEqual(
 | |
|                 ['class SomeClass {', '  SomeClass(): super(someParam) {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [],
 | |
|                                         new o.ClassMethod(null, [], [callSomeMethod]), [])))
 | |
|             .toEqual(
 | |
|                 ['class SomeClass {', '  SomeClass() {', '    this.someMethod();', '  }', '}'].join(
 | |
|                     '\n'));
 | |
|       });
 | |
| 
 | |
|       it('should support declaring fields', () => {
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [new o.ClassField('someField')], [],
 | |
|                                         null, [])))
 | |
|             .toEqual(['class SomeClass {', '  var someField;', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null,
 | |
|                                         [new o.ClassField('someField', o.INT_TYPE)], [], null, [])))
 | |
|             .toEqual(['class SomeClass {', '  int someField;', '}'].join('\n'));
 | |
|         expect(
 | |
|             emitStmt(new o.ClassStmt(
 | |
|                 'SomeClass', null,
 | |
|                 [new o.ClassField('someField', o.INT_TYPE, [o.StmtModifier.Final])], [], null, [])))
 | |
|             .toEqual(['class SomeClass {', '  final int someField;', '}'].join('\n'));
 | |
|       });
 | |
| 
 | |
|       it('should support declaring getters', () => {
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [],
 | |
|                                         [new o.ClassGetter('someGetter', [])], null, [])))
 | |
|             .toEqual(['class SomeClass {', '  get someGetter {', '  }', '}'].join('\n'));
 | |
|         expect(
 | |
|             emitStmt(new o.ClassStmt('SomeClass', null, [],
 | |
|                                      [new o.ClassGetter('someGetter', [], o.INT_TYPE)], null, [])))
 | |
|             .toEqual(['class SomeClass {', '  int get someGetter {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [],
 | |
|                                         [new o.ClassGetter('someGetter', [callSomeMethod])], null,
 | |
|                                         [])))
 | |
|             .toEqual(
 | |
|                 ['class SomeClass {', '  get someGetter {', '    this.someMethod();', '  }', '}']
 | |
|                     .join('\n'));
 | |
|       });
 | |
| 
 | |
|       it('should support methods', () => {
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [], null,
 | |
|                                         [new o.ClassMethod('someMethod', [], [])])))
 | |
|             .toEqual(['class SomeClass {', '  void someMethod() {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [], null,
 | |
|                                         [new o.ClassMethod('someMethod', [], [], o.INT_TYPE)])))
 | |
|             .toEqual(['class SomeClass {', '  int someMethod() {', '  }', '}'].join('\n'));
 | |
|         expect(
 | |
|             emitStmt(new o.ClassStmt(
 | |
|                 'SomeClass', null, [], [], null,
 | |
|                 [new o.ClassMethod('someMethod', [new o.FnParam('someParam', o.INT_TYPE)], [])])))
 | |
|             .toEqual(
 | |
|                 ['class SomeClass {', '  void someMethod(int someParam) {', '  }', '}'].join('\n'));
 | |
|         expect(emitStmt(new o.ClassStmt('SomeClass', null, [], [], null,
 | |
|                                         [new o.ClassMethod('someMethod', [], [callSomeMethod])])))
 | |
|             .toEqual(
 | |
|                 ['class SomeClass {', '  void someMethod() {', '    this.someMethod();', '  }', '}']
 | |
|                     .join('\n'));
 | |
|       });
 | |
|     });
 | |
| 
 | |
|     it('should support builtin types', () => {
 | |
|       var writeVarExpr = o.variable('a').set(o.NULL_EXPR);
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.DYNAMIC_TYPE))).toEqual('dynamic a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.BOOL_TYPE))).toEqual('bool a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.INT_TYPE))).toEqual('int a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.NUMBER_TYPE))).toEqual('num a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.STRING_TYPE))).toEqual('String a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.FUNCTION_TYPE))).toEqual('Function a = null;');
 | |
|     });
 | |
| 
 | |
|     it('should support external types', () => {
 | |
|       var writeVarExpr = o.variable('a').set(o.NULL_EXPR);
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.importType(sameModuleIdentifier))))
 | |
|           .toEqual('someLocalId a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(o.importType(externalModuleIdentifier))))
 | |
|           .toEqual([`import 'someOtherPath' as import0;`, `import0.someExternalId a = null;`].join(
 | |
|               '\n'));
 | |
|     });
 | |
| 
 | |
|     it('should support combined types', () => {
 | |
|       var writeVarExpr = o.variable('a').set(o.NULL_EXPR);
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(new o.ArrayType(null))))
 | |
|           .toEqual('List<dynamic> a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(new o.ArrayType(o.INT_TYPE))))
 | |
|           .toEqual('List<int> a = null;');
 | |
| 
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(new o.MapType(null))))
 | |
|           .toEqual('Map<String, dynamic> a = null;');
 | |
|       expect(emitStmt(writeVarExpr.toDeclStmt(new o.MapType(o.INT_TYPE))))
 | |
|           .toEqual('Map<String, int> a = null;');
 | |
|     });
 | |
|   });
 | |
| }
 |