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Unified Diff: pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart

Issue 693183006: Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
deleted file mode 100644
index 8b24a7e18b960437fec1cc5725169525a2744858..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright (c) 2013, 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.
-
-part of dart2js.js_emitter;
-
-class InterceptorEmitter extends CodeEmitterHelper {
- final Set<String> interceptorInvocationNames = new Set<String>();
-
- void recordMangledNameOfMemberMethod(FunctionElement member, String name) {
- if (backend.isInterceptedMethod(member)) {
- interceptorInvocationNames.add(name);
- }
- }
-
- void emitGetInterceptorMethod(CodeBuffer buffer,
- String key,
- Set<ClassElement> classes) {
- InterceptorStubGenerator stubGenerator =
- new InterceptorStubGenerator(compiler, namer, backend);
- jsAst.Expression function =
- stubGenerator.generateGetInterceptorMethod(classes);
-
- buffer.write(jsAst.prettyPrint(
- js('${namer.globalObjectFor(backend.interceptorsLibrary)}.# = #',
- [key, function]),
- compiler));
- buffer.write(N);
- }
-
- /**
- * Emit all versions of the [:getInterceptor:] method.
- */
- void emitGetInterceptorMethods(CodeBuffer buffer) {
- emitter.addComment('getInterceptor methods', buffer);
- Map<String, Set<ClassElement>> specializedGetInterceptors =
- backend.specializedGetInterceptors;
- for (String name in specializedGetInterceptors.keys.toList()..sort()) {
- Set<ClassElement> classes = specializedGetInterceptors[name];
- emitGetInterceptorMethod(buffer, name, classes);
- }
- }
-
- void emitOneShotInterceptors(CodeBuffer buffer) {
- List<String> names = backend.oneShotInterceptors.keys.toList();
- names.sort();
-
- InterceptorStubGenerator stubGenerator =
- new InterceptorStubGenerator(compiler, namer, backend);
- String globalObject = namer.globalObjectFor(backend.interceptorsLibrary);
- for (String name in names) {
- jsAst.Expression function =
- stubGenerator.generateOneShotInterceptor(name);
- jsAst.Expression assignment =
- js('${globalObject}.# = #', [name, function]);
-
- buffer.write(jsAst.prettyPrint(assignment, compiler));
- buffer.write(N);
- }
- }
-
- /**
- * If [JSInvocationMirror._invokeOn] has been compiled, emit all the
- * possible selector names that are intercepted into the
- * [interceptedNames] top-level variable. The implementation of
- * [_invokeOn] will use it to determine whether it should call the
- * method with an extra parameter.
- */
- void emitInterceptedNames(CodeBuffer buffer) {
- // TODO(ahe): We should not generate the list of intercepted names at
- // compile time, it can be generated automatically at runtime given
- // subclasses of Interceptor (which can easily be identified).
- if (!compiler.enabledInvokeOn) return;
-
- // TODO(ahe): We should roll this into
- // [emitStaticNonFinalFieldInitializations].
- String name = backend.namer.getNameOfGlobalField(backend.interceptedNames);
-
- int index = 0;
- var invocationNames = interceptorInvocationNames.toList()..sort();
- List<jsAst.ArrayElement> elements = invocationNames.map(
- (String invocationName) {
- jsAst.Literal str = js.string(invocationName);
- return new jsAst.ArrayElement(index++, str);
- }).toList();
- jsAst.ArrayInitializer array =
- new jsAst.ArrayInitializer(invocationNames.length, elements);
-
- jsAst.Expression assignment =
- js('${emitter.isolateProperties}.# = #', [name, array]);
-
- buffer.write(jsAst.prettyPrint(assignment, compiler));
- buffer.write(N);
- }
-
- /**
- * Emit initializer for [mapTypeToInterceptor] data structure used by
- * [findInterceptorForType]. See declaration of [mapTypeToInterceptor] in
- * `interceptors.dart`.
- */
- void emitMapTypeToInterceptor(CodeBuffer buffer) {
- // TODO(sra): Perhaps inject a constant instead?
- CustomElementsAnalysis analysis = backend.customElementsAnalysis;
- if (!analysis.needsTable) return;
-
- List<jsAst.Expression> elements = <jsAst.Expression>[];
- JavaScriptConstantCompiler handler = backend.constants;
- List<ConstantValue> constants =
- handler.getConstantsForEmission(emitter.compareConstants);
- for (ConstantValue constant in constants) {
- if (constant is TypeConstantValue) {
- TypeConstantValue typeConstant = constant;
- Element element = typeConstant.representedType.element;
- if (element is ClassElement) {
- ClassElement classElement = element;
- if (!analysis.needsClass(classElement)) continue;
-
- elements.add(emitter.constantReference(constant));
- elements.add(namer.elementAccess(classElement));
-
- // Create JavaScript Object map for by-name lookup of generative
- // constructors. For example, the class A has three generative
- // constructors
- //
- // class A {
- // A() {}
- // A.foo() {}
- // A.bar() {}
- // }
- //
- // Which are described by the map
- //
- // {"": A.A$, "foo": A.A$foo, "bar": A.A$bar}
- //
- // We expect most of the time the map will be a singleton.
- var properties = [];
- for (Element member in analysis.constructors(classElement)) {
- properties.add(
- new jsAst.Property(
- js.string(member.name),
- backend.namer.elementAccess(member)));
- }
-
- var map = new jsAst.ObjectInitializer(properties);
- elements.add(map);
- }
- }
- }
-
- jsAst.ArrayInitializer array = new jsAst.ArrayInitializer.from(elements);
- String name =
- backend.namer.getNameOfGlobalField(backend.mapTypeToInterceptor);
- jsAst.Expression assignment =
- js('${emitter.isolateProperties}.# = #', [name, array]);
-
- buffer.write(jsAst.prettyPrint(assignment, compiler));
- buffer.write(N);
- }
-}

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