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// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library dart2js.kernel.frontend_strategy;
import '../common.dart';
import '../common/backend_api.dart';
import '../common/resolution.dart';
import '../common/tasks.dart';
import '../common/work.dart';
import '../common_elements.dart';
import '../compiler.dart';
import '../deferred_load.dart' show DeferredLoadTask;
import '../elements/entities.dart';
import '../elements/types.dart';
import '../enqueue.dart';
import '../environment.dart' as env;
import '../frontend_strategy.dart';
import '../js_backend/allocator_analysis.dart' show KAllocatorAnalysis;
import '../js_backend/backend_usage.dart';
import '../js_backend/interceptor_data.dart';
import '../js_backend/native_data.dart';
import '../js_backend/no_such_method_registry.dart';
import '../js_backend/runtime_types.dart';
import '../js_model/closure.dart' show ScopeModel;
import '../library_loader.dart';
import '../native/enqueue.dart' show NativeResolutionEnqueuer;
import '../native/resolver.dart';
import '../options.dart';
import '../universe/class_hierarchy.dart';
import '../universe/world_builder.dart';
import '../universe/world_impact.dart';
import 'deferred_load.dart';
import 'element_map.dart';
import 'element_map_impl.dart';
/// Front end strategy that loads '.dill' files and builds a resolved element
/// model from kernel IR nodes.
class KernelFrontEndStrategy extends FrontendStrategyBase {
CompilerOptions _options;
CompilerTask _compilerTask;
KernelToElementMapImpl _elementMap;
RuntimeTypesNeedBuilder _runtimeTypesNeedBuilder;
KernelAnnotationProcessor _annotationProcesser;
final Map<MemberEntity, ScopeModel> closureModels =
<MemberEntity, ScopeModel>{};
KernelFrontEndStrategy(this._compilerTask, this._options,
DiagnosticReporter reporter, env.Environment environment) {
assert(_compilerTask != null);
_elementMap =
new KernelToElementMapImpl(reporter, environment, this, _options);
}
@override
void registerLoadedLibraries(LoadedLibraries loadedLibraries) {
_elementMap.addComponent(loadedLibraries.component);
}
@override
ElementEnvironment get elementEnvironment => _elementMap.elementEnvironment;
@override
CommonElements get commonElements => _elementMap.commonElements;
DartTypes get dartTypes => _elementMap.types;
KernelToElementMap get elementMap => _elementMap;
@override
AnnotationProcessor get annotationProcesser => _annotationProcesser ??=
new KernelAnnotationProcessor(elementMap, nativeBasicDataBuilder);
@override
DeferredLoadTask createDeferredLoadTask(Compiler compiler) =>
new KernelDeferredLoadTask(compiler, _elementMap);
@override
NativeClassFinder createNativeClassFinder(NativeBasicData nativeBasicData) {
return new BaseNativeClassFinder(
_elementMap.elementEnvironment, nativeBasicData);
}
NoSuchMethodResolver createNoSuchMethodResolver() {
return new KernelNoSuchMethodResolver(elementMap);
}
/// Computes the main function from [mainLibrary] adding additional world
/// impact to [impactBuilder].
FunctionEntity computeMain(WorldImpactBuilder impactBuilder) {
return elementEnvironment.mainFunction;
}
RuntimeTypesNeedBuilder createRuntimeTypesNeedBuilder() {
return _runtimeTypesNeedBuilder ??= _options.disableRtiOptimization
? const TrivialRuntimeTypesNeedBuilder()
: new RuntimeTypesNeedBuilderImpl(
elementEnvironment, _elementMap.types);
}
RuntimeTypesNeedBuilder get runtimeTypesNeedBuilderForTesting =>
_runtimeTypesNeedBuilder;
ResolutionWorldBuilder createResolutionWorldBuilder(
NativeBasicData nativeBasicData,
NativeDataBuilder nativeDataBuilder,
InterceptorDataBuilder interceptorDataBuilder,
BackendUsageBuilder backendUsageBuilder,
RuntimeTypesNeedBuilder rtiNeedBuilder,
KAllocatorAnalysis allocatorAnalysis,
NativeResolutionEnqueuer nativeResolutionEnqueuer,
NoSuchMethodRegistry noSuchMethodRegistry,
SelectorConstraintsStrategy selectorConstraintsStrategy,
ClassHierarchyBuilder classHierarchyBuilder,
ClassQueries classQueries) {
return new ResolutionWorldBuilderImpl(
_options,
elementMap,
elementMap.elementEnvironment,
elementMap.types,
elementMap.commonElements,
nativeBasicData,
nativeDataBuilder,
interceptorDataBuilder,
backendUsageBuilder,
rtiNeedBuilder,
allocatorAnalysis,
nativeResolutionEnqueuer,
noSuchMethodRegistry,
selectorConstraintsStrategy,
classHierarchyBuilder,
classQueries);
}
@override
WorkItemBuilder createResolutionWorkItemBuilder(
NativeBasicData nativeBasicData,
NativeDataBuilder nativeDataBuilder,
ImpactTransformer impactTransformer,
Map<Entity, WorldImpact> impactCache) {
return new KernelWorkItemBuilder(_compilerTask, elementMap, nativeBasicData,
nativeDataBuilder, impactTransformer, closureModels, impactCache);
}
ClassQueries createClassQueries() {
return new KernelClassQueries(elementMap);
}
@override
SourceSpan spanFromSpannable(Spannable spannable, Entity currentElement) {
return _elementMap.getSourceSpan(spannable, currentElement);
}
}
class KernelWorkItemBuilder implements WorkItemBuilder {
final CompilerTask _compilerTask;
final KernelToElementMapImpl _elementMap;
final ImpactTransformer _impactTransformer;
final NativeMemberResolver _nativeMemberResolver;
final Map<MemberEntity, ScopeModel> closureModels;
final Map<Entity, WorldImpact> impactCache;
KernelWorkItemBuilder(
this._compilerTask,
this._elementMap,
NativeBasicData nativeBasicData,
NativeDataBuilder nativeDataBuilder,
this._impactTransformer,
this.closureModels,
this.impactCache)
: _nativeMemberResolver = new KernelNativeMemberResolver(
_elementMap, nativeBasicData, nativeDataBuilder);
@override
WorkItem createWorkItem(MemberEntity entity) {
return new KernelWorkItem(_compilerTask, _elementMap, _impactTransformer,
_nativeMemberResolver, entity, closureModels, impactCache);
}
}
class KernelWorkItem implements WorkItem {
final CompilerTask _compilerTask;
final KernelToElementMapImpl _elementMap;
final ImpactTransformer _impactTransformer;
final NativeMemberResolver _nativeMemberResolver;
final MemberEntity element;
final Map<MemberEntity, ScopeModel> closureModels;
final Map<Entity, WorldImpact> impactCache;
KernelWorkItem(
this._compilerTask,
this._elementMap,
this._impactTransformer,
this._nativeMemberResolver,
this.element,
this.closureModels,
this.impactCache);
@override
WorldImpact run() {
return _compilerTask.measure(() {
_nativeMemberResolver.resolveNativeMember(element);
_compilerTask.measureSubtask('closures', () {
ScopeModel closureModel = _elementMap.computeScopeModel(element);
if (closureModel != null) {
closureModels[element] = closureModel;
}
});
return _compilerTask.measureSubtask('worldImpact', () {
ResolutionImpact impact = _elementMap.computeWorldImpact(element);
WorldImpact worldImpact =
_impactTransformer.transformResolutionImpact(impact);
if (impactCache != null) {
impactCache[element] = worldImpact;
}
return worldImpact;
});
});
}
}