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