Add stub versions of KernelInferrerEngine and friends

pkg/compiler/lib/src/inferrer/kernel_inferrer_engine.dart

+// 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.
+
+import 'package:kernel/ast.dart' as ir;
+
+import '../compiler.dart';
+import '../constants/values.dart';
+import '../elements/entities.dart';
+import '../types/types.dart';
+import '../world.dart';
+import 'inferrer_engine.dart';
+import 'type_graph_inferrer.dart';
+import 'type_graph_nodes.dart';
+import 'type_system.dart';
+
+class KernelTypeGraphInferrer extends TypeGraphInferrer<ir.Node> {
+  final Compiler _compiler;
+
+  KernelTypeGraphInferrer(this._compiler, ClosedWorld closedWorld,
+      ClosedWorldRefiner closedWorldRefiner, {bool disableTypeInference: false})
+      : super(closedWorld, closedWorldRefiner,
+            disableTypeInference: disableTypeInference);
+
+  @override
+  InferrerEngine<ir.Node> createInferrerEngineFor(FunctionEntity main) {
+    return new KernelInferrerEngine(
+        _compiler, closedWorld, closedWorldRefiner, main);
+  }
+}
+
+class KernelGlobalTypeInferenceResults
+    extends GlobalTypeInferenceResults<ir.Node> {
+  KernelGlobalTypeInferenceResults(
+      TypesInferrer<ir.Node> inferrer, ClosedWorld closedWorld)
+      : super(inferrer, closedWorld);
+
+  GlobalTypeInferenceMemberResult<ir.Node> createMemberResult(
+      TypeGraphInferrer<ir.Node> inferrer, MemberEntity member,
+      {bool isJsInterop: false}) {
+    return new GlobalTypeInferenceMemberResultImpl<ir.Node>(
+        member,
+        // We store data in the context of the enclosing method, even
+        // for closure elements.
+        inferrer.inferrer.lookupDataOfMember(member),
+        inferrer,
+        isJsInterop,
+        dynamicType);
+  }
+
+  GlobalTypeInferenceParameterResult<ir.Node> createParameterResult(
+      TypeGraphInferrer<ir.Node> inferrer, Local parameter) {
+    return new GlobalTypeInferenceParameterResultImpl<ir.Node>(
+        parameter, inferrer, dynamicType);
+  }
+}
+
+class KernelInferrerEngine extends InferrerEngineImpl<ir.Node> {
+  KernelInferrerEngine(Compiler compiler, ClosedWorld closedWorld,
+      ClosedWorldRefiner closedWorldRefiner, FunctionEntity mainElement)
+      : super(compiler, closedWorld, closedWorldRefiner, mainElement,
+            const KernelTypeSystemStrategy());
+
+  @override
+  ConstantValue getFieldConstant(FieldEntity field) {
+    throw new UnimplementedError('KernelInferrerEngine.getFieldConstant');
+  }
+
+  @override
+  bool isFieldInitializerPotentiallyNull(
+      FieldEntity field, ir.Node initializer) {
+    throw new UnimplementedError(
+        'KernelInferrerEngine.isFieldInitializerPotentiallyNull');
+  }
+
+  @override
+  TypeInformation computeMemberTypeInformation(
+      MemberEntity member, ir.Node body) {
+    throw new UnimplementedError(
+        'KernelInferrerEngine.computeMemberTypeInformation');
+  }
+
+  @override
+  FunctionEntity lookupCallMethod(ClassEntity cls) {
+    throw new UnimplementedError('KernelInferrerEngine.lookupCallMethod');
+  }
+
+  @override
+  void forEachParameter(FunctionEntity method, void f(Local parameter)) {
+    throw new UnimplementedError('KernelInferrerEngine.forEachParameter');
+  }
+
+  @override
+  ir.Node computeMemberBody(MemberEntity member) {
+    throw new UnimplementedError('KernelInferrerEngine.computeMemberBody');
+  }
+
+  @override
+  int computeMemberSize(MemberEntity member) {
+    throw new UnimplementedError('KernelInferrerEngine.computeMemberSize');
+  }
+
+  @override
+  GlobalTypeInferenceElementData<ir.Node> createElementData() {
+    throw new UnimplementedError('KernelInferrerEngine.createElementData');
+  }
+}
+
+class KernelTypeSystemStrategy implements TypeSystemStrategy<ir.Node> {
+  const KernelTypeSystemStrategy();
+
+  @override
+  bool checkClassEntity(ClassEntity cls) => true;
+
+  @override
+  bool checkMapNode(ir.Node node) => true;
+
+  @override
+  bool checkListNode(ir.Node node) => true;
+
+  @override
+  bool checkLoopPhiNode(ir.Node node) => true;
+
+  @override
+  bool checkPhiNode(ir.Node node) => true;
+
+  @override
+  void forEachParameter(FunctionEntity function, void f(Local parameter)) {
+    throw new UnimplementedError('KernelTypeSystemStrategy.forEachParameter');
+  }
+
+  @override
+  ParameterTypeInformation createParameterTypeInformation(
+      Local parameter, TypeSystem<ir.Node> types) {
+    throw new UnimplementedError(
+        'KernelTypeSystemStrategy.createParameterTypeInformation');
+  }
+
+  @override
+  MemberTypeInformation createMemberTypeInformation(MemberEntity member) {
+    throw new UnimplementedError(
+        'KernelTypeSystemStrategy.createParameterTypeInformation');
+  }
+}