Implement deferred libraries to work with dependency injection and other angular codegen. This is done by not initializing the library in the parent ng_deps file when it is declared as deferred, rewriting the import and, chaining a future that initializes the library in any files that are using deferred libraries which need angular codegen.
		
			
				
	
	
		
			59 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Dart
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Dart
		
	
	
	
	
	
library angular2.test.transform.deferred_rewriter.all_tests;
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import 'package:barback/barback.dart';
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import 'package:angular2/src/transform/deferred_rewriter/transformer.dart';
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import 'package:angular2/src/transform/common/annotation_matcher.dart';
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import 'package:angular2/src/transform/common/asset_reader.dart';
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import 'package:angular2/src/transform/common/logging.dart' as log;
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import 'package:code_transformers/messages/build_logger.dart';
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import 'package:dart_style/dart_style.dart';
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import 'package:guinness/guinness.dart';
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import 'package:path/path.dart' as path;
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import '../common/read_file.dart';
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var formatter = new DartFormatter();
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main() {
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  allTests();
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}
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void allTests() {
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  _testRewriteDeferredLibraries(
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      'should return null when no deferred libraries found.',
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      'no_deferred_libraries/index.dart');
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  _testRewriteDeferredLibraries(
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      'should return null when deferred libraries with no ng_deps.',
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      'no_ng_deps_libraries/index.dart');
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  _testRewriteDeferredLibraries(
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      'should rewrite deferred libraries with ng_deps.',
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      'simple_deferred_example/index.dart');
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  _testRewriteDeferredLibraries(
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      'should not rewrite deferred libraries without ng_deps.',
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      'deferred_example_no_ng_deps/index.dart');
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  _testRewriteDeferredLibraries(
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      'should rewrite deferred libraries with ng_deps leave other deferred library alone.',
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      'complex_deferred_example/index.dart');
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}
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void _testRewriteDeferredLibraries(String name, String inputPath) {
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  it(name, () async {
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    var inputId = _assetIdForPath(inputPath);
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    var reader = new TestAssetReader();
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    var expectedPath = path.join(
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        path.dirname(inputPath), 'expected', path.basename(inputPath));
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    var expectedId = _assetIdForPath(expectedPath);
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    var output = await rewriteDeferredLibraries(reader, inputId);
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    var input = await reader.readAsString(expectedId);
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    if (input == null) {
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      // Null input signals no output. Ensure that is true.
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      expect(output).toBeNull();
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    } else {
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      expect(formatter.format(output)).toEqual(formatter.format(input));
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    }
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  });
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}
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AssetId _assetIdForPath(String path) =>
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    new AssetId('angular2', 'test/transform/deferred_rewriter/$path');
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