fix(dart/transform): Fix transformer output declaration
Ensure that the transformers are properly declaring all consumed outputs. In particular, when a transformer overwrites an output, make sure the transformer calls `consumePrimary` followed by `addOutput` for that file. Prevent `DirectiveLinker` from consuming `.ng_deps.json` files. When we do this, barback incorrectly calculates the available assets for that phase, resulting in broken builds.
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@ -26,17 +26,19 @@ class BindGenerator extends Transformer implements DeclaringTransformer {
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.consumePrimary();
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transform.declareOutput(transform.primaryId);
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}
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@override
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Future apply(Transform transform) async {
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await log.initZoned(transform, () async {
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var id = transform.primaryInput.id;
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var primaryId = transform.primaryInput.id;
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var reader = new AssetReader.fromTransform(transform);
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var transformedCode = await createNgSettersAndGetters(reader, id);
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var transformedCode = await createNgSettersAndGetters(reader, primaryId);
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transform.consumePrimary();
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transform.addOutput(new Asset.fromString(
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id, formatter.format(transformedCode, uri: id.path)));
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primaryId, formatter.format(transformedCode, uri: primaryId.path)));
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});
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}
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}
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@ -24,6 +24,7 @@ class DeferredRewriter extends Transformer implements DeclaringTransformer {
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.consumePrimary();
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transform.declareOutput(transform.primaryId);
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}
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@ -33,9 +34,11 @@ class DeferredRewriter extends Transformer implements DeclaringTransformer {
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var asset = transform.primaryInput;
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var reader = new AssetReader.fromTransform(transform);
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var transformedCode = await rewriteDeferredLibraries(reader, asset.id);
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transform.consumePrimary();
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if (transformedCode != null) {
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transform.addOutput(
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new Asset.fromString(transform.primaryInput.id, transformedCode));
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transform.addOutput(new Asset.fromString(asset.id, transformedCode));
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} else {
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transform.addOutput(asset);
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}
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});
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}
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@ -22,7 +22,10 @@ class DirectiveLinker extends Transformer implements DeclaringTransformer {
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.declareOutput(transform.primaryId);
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// TODO(kegluenq): We should consume this, but doing so causes barback to
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// incorrectly determine what assets are available in this phase.
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// transform.consumePrimary();
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transform.declareOutput(_depsAssetId(transform.primaryId));
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}
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@override
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@ -30,21 +33,26 @@ class DirectiveLinker extends Transformer implements DeclaringTransformer {
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await log.initZoned(transform, () async {
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var reader = new AssetReader.fromTransform(transform);
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var assetId = transform.primaryInput.id;
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var assetPath = assetId.path;
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var ngDepsModel = await linkNgDeps(reader, assetId);
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// See above
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// transform.consumePrimary();
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var outputAssetId = _depsAssetId(assetId);
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if (ngDepsModel != null) {
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var buf = new StringBuffer();
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var writer = new NgDepsWriter(buf);
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writer.writeNgDepsModel(ngDepsModel);
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var formattedCode = formatter.format('$buf', uri: assetPath);
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var ngDepsAssetId =
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new AssetId(assetId.package, toDepsExtension(assetPath));
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transform.addOutput(new Asset.fromString(ngDepsAssetId, formattedCode));
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var formattedCode = formatter.format('$buf', uri: assetId.path);
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transform.addOutput(new Asset.fromString(outputAssetId, formattedCode));
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} else {
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transform.addOutput(new Asset.fromString(outputAssetId, ''));
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}
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});
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}
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}
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AssetId _depsAssetId(AssetId primaryId) =>
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new AssetId(primaryId.package, toDepsExtension(primaryId.path));
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/// Transformer responsible for removing unnecessary `.ng_deps.json` files
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/// created by {@link DirectiveProcessor}.
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class EmptyNgDepsRemover extends Transformer implements DeclaringTransformer {
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@ -54,17 +62,22 @@ class EmptyNgDepsRemover extends Transformer implements DeclaringTransformer {
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bool isPrimary(AssetId id) => id.path.endsWith(DEPS_JSON_EXTENSION);
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/// We occasionally consume the primary input, but that depends on the
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/// contents of the file, so we conservatively do not declare any outputs nor
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/// consumption to ensure that we declare a superset of our actual outputs.
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/// contents of the file, so we conservatively declare that we both consume
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/// and output the asset. This prevents barback from making any assumptions
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/// about the existence of the assets until after the transformer has run.
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@override
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declareOutputs(DeclaringTransform transform) => null;
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declareOutputs(DeclaringTransform transform) {
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transform.consumePrimary();
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transform.declareOutput(transform.primaryId);
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}
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@override
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Future apply(Transform transform) async {
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await log.initZoned(transform, () async {
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var reader = new AssetReader.fromTransform(transform);
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if (!(await isNecessary(reader, transform.primaryInput.id))) {
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transform.consumePrimary();
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transform.consumePrimary();
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if ((await isNecessary(reader, transform.primaryInput.id))) {
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transform.addOutput(transform.primaryInput);
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}
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});
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}
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@ -34,36 +34,33 @@ class DirectiveProcessor extends Transformer implements DeclaringTransformer {
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/// determine that one or the other will not be emitted.
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.declareOutput(
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transform.primaryId.changeExtension(ALIAS_EXTENSION));
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transform.declareOutput(
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transform.primaryId.changeExtension(DEPS_EXTENSION));
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transform.declareOutput(_depsOutputId(transform.primaryId));
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transform.declareOutput(_metaOutputId(transform.primaryId));
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}
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@override
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Future apply(Transform transform) async {
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await log.initZoned(transform, () async {
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var asset = transform.primaryInput;
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var assetId = transform.primaryInput.id;
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var reader = new AssetReader.fromTransform(transform);
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var ngMeta = new NgMeta.empty();
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var ngDepsModel = await createNgDeps(
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reader, asset.id, options.annotationMatcher, ngMeta,
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reader, assetId, options.annotationMatcher, ngMeta,
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inlineViews: options.inlineViews);
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if (ngDepsModel != null) {
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var ngDepsAssetId =
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transform.primaryInput.id.changeExtension(DEPS_JSON_EXTENSION);
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if (await transform.hasInput(ngDepsAssetId)) {
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log.logger.error('Clobbering ${ngDepsAssetId}. '
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'This probably will not end well');
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}
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transform.addOutput(new Asset.fromString(ngDepsAssetId, ngDepsModel.writeToJson()));
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transform.addOutput(new Asset.fromString(
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_depsOutputId(assetId), ngDepsModel.writeToJson()));
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}
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var metaOutputId = _metaOutputId(assetId);
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if (!ngMeta.isEmpty) {
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var ngAliasesId =
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transform.primaryInput.id.changeExtension(ALIAS_EXTENSION);
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transform.addOutput(new Asset.fromString(ngAliasesId,
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transform.addOutput(new Asset.fromString(metaOutputId,
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new JsonEncoder.withIndent(" ").convert(ngMeta.toJson())));
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}
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});
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}
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}
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AssetId _depsOutputId(AssetId primaryId) =>
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primaryId.changeExtension(DEPS_JSON_EXTENSION);
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AssetId _metaOutputId(AssetId primaryId) =>
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primaryId.changeExtension(ALIAS_EXTENSION);
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@ -30,12 +30,14 @@ class ReflectionRemover extends Transformer implements DeclaringTransformer {
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.consumePrimary();
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transform.declareOutput(transform.primaryId);
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}
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@override
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Future apply(Transform transform) async {
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await log.initZoned(transform, () async {
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var primaryId = transform.primaryInput.id;
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var mirrorMode = options.mirrorMode;
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var writeStaticInit = options.initReflector;
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if (options.modeName == TRANSFORM_DYNAMIC_MODE) {
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@ -47,10 +49,10 @@ class ReflectionRemover extends Transformer implements DeclaringTransformer {
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}
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var transformedCode = await removeReflectionCapabilities(
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new AssetReader.fromTransform(transform), transform.primaryInput.id,
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new AssetReader.fromTransform(transform), primaryId,
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mirrorMode: mirrorMode, writeStaticInit: writeStaticInit);
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transform.addOutput(
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new Asset.fromString(transform.primaryInput.id, transformedCode));
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transform.consumePrimary();
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transform.addOutput(new Asset.fromString(primaryId, transformedCode));
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});
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}
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}
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@ -28,6 +28,7 @@ class TemplateCompiler extends Transformer implements DeclaringTransformer {
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@override
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declareOutputs(DeclaringTransform transform) {
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transform.consumePrimary();
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transform.declareOutput(transform.primaryId);
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}
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@ -35,13 +36,15 @@ class TemplateCompiler extends Transformer implements DeclaringTransformer {
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Future apply(Transform transform) async {
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await log.initZoned(transform, () async {
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Html5LibDomAdapter.makeCurrent();
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var id = transform.primaryInput.id;
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var primaryId = transform.primaryInput.id;
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var reader = new AssetReader.fromTransform(transform);
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var transformedCode = formatter.format(await processTemplates(reader, id,
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var transformedCode = formatter.format(await processTemplates(
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reader, primaryId,
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generateChangeDetectors: options.generateChangeDetectors,
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reflectPropertiesAsAttributes:
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options.reflectPropertiesAsAttributes));
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transform.addOutput(new Asset.fromString(id, transformedCode));
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transform.consumePrimary();
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transform.addOutput(new Asset.fromString(primaryId, transformedCode));
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});
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}
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}
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