More kernel_impact.

pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart

 // Copyright (c) 2016, 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 '../common.dart';
 import '../common/names.dart';
 import '../compiler.dart';
 import '../constants/values.dart';
@@ skipping 173 matching lines @@
   List<DartType> getDartTypes(List<ir.DartType> types) {
     return types.map(getDartType).toList();
   }
 }
 
 class DartTypeConverter extends ir.DartTypeVisitor<DartType> {
   final KernelAstAdapter astAdapter;
 
   DartTypeConverter(this.astAdapter);
 
+  DartType visitType(ir.DartType type) => type.accept(this);
+
   List<DartType> visitTypes(List<ir.DartType> types) {
     return new List.generate(
         types.length, (int index) => types[index].accept(this));
   }
 
   @override
   DartType visitTypeParameterType(ir.TypeParameterType node) {
     return new TypeVariableType(astAdapter.getElement(node.parameter));
   }
 
   @override
   DartType visitFunctionType(ir.FunctionType node) {
-    throw new UnimplementedError("Function types not currently supported");
+    return new FunctionType.synthesized(
+        visitType(node.returnType),
+        visitTypes(node.positionalParameters
+            .take(node.requiredParameterCount)
+            .toList()),
+        visitTypes(node.positionalParameters
+            .skip(node.requiredParameterCount)
+            .toList()),
+        node.namedParameters.keys.toList(),
+        visitTypes(node.namedParameters.values.toList()));
   }
 
   @override
   DartType visitInterfaceType(ir.InterfaceType node) {
     ClassElement cls = astAdapter.getElement(node.classNode);
     return new InterfaceType(cls, visitTypes(node.typeArguments));
   }
 
   @override
   DartType visitVoidType(ir.VoidType node) {
     return const VoidType();
   }
 
   @override
   DartType visitDynamicType(ir.DynamicType node) {
     return const DynamicType();
   }
 
   @override
   DartType visitInvalidType(ir.InvalidType node) {
     throw new UnimplementedError("Invalid types not currently supported");
   }
 }