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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.
This commit is contained in:
Tim Blasi 2015-09-21 16:00:52 -07:00
parent a88e6f3106
commit 1f2302e39e
6 changed files with 58 additions and 38 deletions
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8
modules_dart/transform/lib/src/transform/bind_generator/transformer.dart
View File

@ -26,17 +26,19 @@ class BindGenerator extends Transformer implements DeclaringTransformer {
@override
declareOutputs(DeclaringTransform transform) {
transform.consumePrimary();
transform.declareOutput(transform.primaryId);
}
@override
Future apply(Transform transform) async {
await log.initZoned(transform, () async {
var id = transform.primaryInput.id;
var primaryId = transform.primaryInput.id;
var reader = new AssetReader.fromTransform(transform);
var transformedCode = await createNgSettersAndGetters(reader, id);
var transformedCode = await createNgSettersAndGetters(reader, primaryId);
transform.consumePrimary();
transform.addOutput(new Asset.fromString(
id, formatter.format(transformedCode, uri: id.path)));
primaryId, formatter.format(transformedCode, uri: primaryId.path)));
});
}
}

7
modules_dart/transform/lib/src/transform/deferred_rewriter/transformer.dart
View File

@ -24,6 +24,7 @@ class DeferredRewriter extends Transformer implements DeclaringTransformer {
@override
declareOutputs(DeclaringTransform transform) {
transform.consumePrimary();
transform.declareOutput(transform.primaryId);
}
@ -33,9 +34,11 @@ class DeferredRewriter extends Transformer implements DeclaringTransformer {
var asset = transform.primaryInput;
var reader = new AssetReader.fromTransform(transform);
var transformedCode = await rewriteDeferredLibraries(reader, asset.id);
transform.consumePrimary();
if (transformedCode != null) {
transform.addOutput(
new Asset.fromString(transform.primaryInput.id, transformedCode));
transform.addOutput(new Asset.fromString(asset.id, transformedCode));
} else {
transform.addOutput(asset);
}
});
}

33
modules_dart/transform/lib/src/transform/directive_linker/transformer.dart
View File

@ -22,7 +22,10 @@ class DirectiveLinker extends Transformer implements DeclaringTransformer {
@override
declareOutputs(DeclaringTransform transform) {
transform.declareOutput(transform.primaryId);
// TODO(kegluenq): We should consume this, but doing so causes barback to
// incorrectly determine what assets are available in this phase.
// transform.consumePrimary();
transform.declareOutput(_depsAssetId(transform.primaryId));
}
@override
@ -30,21 +33,26 @@ class DirectiveLinker extends Transformer implements DeclaringTransformer {
await log.initZoned(transform, () async {
var reader = new AssetReader.fromTransform(transform);
var assetId = transform.primaryInput.id;
var assetPath = assetId.path;
var ngDepsModel = await linkNgDeps(reader, assetId);
// See above
// transform.consumePrimary();
var outputAssetId = _depsAssetId(assetId);
if (ngDepsModel != null) {
var buf = new StringBuffer();
var writer = new NgDepsWriter(buf);
writer.writeNgDepsModel(ngDepsModel);
var formattedCode = formatter.format('$buf', uri: assetPath);
var ngDepsAssetId =
new AssetId(assetId.package, toDepsExtension(assetPath));
transform.addOutput(new Asset.fromString(ngDepsAssetId, formattedCode));
var formattedCode = formatter.format('$buf', uri: assetId.path);
transform.addOutput(new Asset.fromString(outputAssetId, formattedCode));
} else {
transform.addOutput(new Asset.fromString(outputAssetId, ''));
}
});
}
}
AssetId _depsAssetId(AssetId primaryId) =>
new AssetId(primaryId.package, toDepsExtension(primaryId.path));
/// Transformer responsible for removing unnecessary `.ng_deps.json` files
/// created by {@link DirectiveProcessor}.
class EmptyNgDepsRemover extends Transformer implements DeclaringTransformer {
@ -54,17 +62,22 @@ class EmptyNgDepsRemover extends Transformer implements DeclaringTransformer {
bool isPrimary(AssetId id) => id.path.endsWith(DEPS_JSON_EXTENSION);
/// We occasionally consume the primary input, but that depends on the
/// contents of the file, so we conservatively do not declare any outputs nor
/// consumption to ensure that we declare a superset of our actual outputs.
/// contents of the file, so we conservatively declare that we both consume
/// and output the asset. This prevents barback from making any assumptions
/// about the existence of the assets until after the transformer has run.
@override
declareOutputs(DeclaringTransform transform) => null;
declareOutputs(DeclaringTransform transform) {
transform.consumePrimary();
transform.declareOutput(transform.primaryId);
}
@override
Future apply(Transform transform) async {
await log.initZoned(transform, () async {
var reader = new AssetReader.fromTransform(transform);
if (!(await isNecessary(reader, transform.primaryInput.id))) {
transform.consumePrimary();
if ((await isNecessary(reader, transform.primaryInput.id))) {
transform.addOutput(transform.primaryInput);
}
});
}

29
modules_dart/transform/lib/src/transform/directive_processor/transformer.dart
View File

@ -34,36 +34,33 @@ class DirectiveProcessor extends Transformer implements DeclaringTransformer {
/// determine that one or the other will not be emitted.
@override
declareOutputs(DeclaringTransform transform) {
transform.declareOutput(
transform.primaryId.changeExtension(ALIAS_EXTENSION));
transform.declareOutput(
transform.primaryId.changeExtension(DEPS_EXTENSION));
transform.declareOutput(_depsOutputId(transform.primaryId));
transform.declareOutput(_metaOutputId(transform.primaryId));
}
@override
Future apply(Transform transform) async {
await log.initZoned(transform, () async {
var asset = transform.primaryInput;
var assetId = transform.primaryInput.id;
var reader = new AssetReader.fromTransform(transform);
var ngMeta = new NgMeta.empty();
var ngDepsModel = await createNgDeps(
reader, asset.id, options.annotationMatcher, ngMeta,
reader, assetId, options.annotationMatcher, ngMeta,
inlineViews: options.inlineViews);
if (ngDepsModel != null) {
var ngDepsAssetId =
transform.primaryInput.id.changeExtension(DEPS_JSON_EXTENSION);
if (await transform.hasInput(ngDepsAssetId)) {
log.logger.error('Clobbering ${ngDepsAssetId}. '
'This probably will not end well');
}
transform.addOutput(new Asset.fromString(ngDepsAssetId, ngDepsModel.writeToJson()));
transform.addOutput(new Asset.fromString(
_depsOutputId(assetId), ngDepsModel.writeToJson()));
}
var metaOutputId = _metaOutputId(assetId);
if (!ngMeta.isEmpty) {
var ngAliasesId =
transform.primaryInput.id.changeExtension(ALIAS_EXTENSION);
transform.addOutput(new Asset.fromString(ngAliasesId,
transform.addOutput(new Asset.fromString(metaOutputId,
new JsonEncoder.withIndent(" ").convert(ngMeta.toJson())));
}
});
}
}
AssetId _depsOutputId(AssetId primaryId) =>
primaryId.changeExtension(DEPS_JSON_EXTENSION);
AssetId _metaOutputId(AssetId primaryId) =>
primaryId.changeExtension(ALIAS_EXTENSION);

8
modules_dart/transform/lib/src/transform/reflection_remover/transformer.dart
View File

@ -30,12 +30,14 @@ class ReflectionRemover extends Transformer implements DeclaringTransformer {
@override
declareOutputs(DeclaringTransform transform) {
transform.consumePrimary();
transform.declareOutput(transform.primaryId);
}
@override
Future apply(Transform transform) async {
await log.initZoned(transform, () async {
var primaryId = transform.primaryInput.id;
var mirrorMode = options.mirrorMode;
var writeStaticInit = options.initReflector;
if (options.modeName == TRANSFORM_DYNAMIC_MODE) {
@ -47,10 +49,10 @@ class ReflectionRemover extends Transformer implements DeclaringTransformer {
}
var transformedCode = await removeReflectionCapabilities(
new AssetReader.fromTransform(transform), transform.primaryInput.id,
new AssetReader.fromTransform(transform), primaryId,
mirrorMode: mirrorMode, writeStaticInit: writeStaticInit);
transform.addOutput(
new Asset.fromString(transform.primaryInput.id, transformedCode));
transform.consumePrimary();
transform.addOutput(new Asset.fromString(primaryId, transformedCode));
});
}
}

9
modules_dart/transform/lib/src/transform/template_compiler/transformer.dart
View File

@ -28,6 +28,7 @@ class TemplateCompiler extends Transformer implements DeclaringTransformer {
@override
declareOutputs(DeclaringTransform transform) {
transform.consumePrimary();
transform.declareOutput(transform.primaryId);
}
@ -35,13 +36,15 @@ class TemplateCompiler extends Transformer implements DeclaringTransformer {
Future apply(Transform transform) async {
await log.initZoned(transform, () async {
Html5LibDomAdapter.makeCurrent();
var id = transform.primaryInput.id;
var primaryId = transform.primaryInput.id;
var reader = new AssetReader.fromTransform(transform);
var transformedCode = formatter.format(await processTemplates(reader, id,
var transformedCode = formatter.format(await processTemplates(
reader, primaryId,
generateChangeDetectors: options.generateChangeDetectors,
reflectPropertiesAsAttributes:
options.reflectPropertiesAsAttributes));
transform.addOutput(new Asset.fromString(id, transformedCode));
transform.consumePrimary();
transform.addOutput(new Asset.fromString(primaryId, transformedCode));
});
}
}