Generate traps for unhandled statement nodes

pkg/compiler/lib/src/ssa/builder_kernel.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 'package:kernel/text/ast_to_text.dart' show debugNodeToString;

[Siggi Cherem (dart-lang), 2016/12/08 05:30:06]

delete? (unused?)

 
 import '../closure.dart';
 import '../common.dart';
 import '../common/codegen.dart' show CodegenRegistry, CodegenWorkItem;
 import '../common/names.dart';
 import '../common/tasks.dart' show CompilerTask;
 import '../compiler.dart';
 import '../constants/values.dart'
     show
         ConstantValue,
@@ skipping 409 matching lines @@
 
   /// Pushes a boolean checking [expression] against null.
   pushCheckNull(HInstruction expression) {
     push(new HIdentity(
         expression, graph.addConstantNull(compiler), null, backend.boolType));
   }
 
   @override
   void defaultExpression(ir.Expression expression) {
     // TODO(het): This is only to get tests working.
-    String message = 'Unhandled ir.${expression.runtimeType}  $expression';
+    _trap('Unhandled ir.${expression.runtimeType}  $expression');
+  }
+
+  @override
+  void defaultStatement(ir.Statement statement) {
+    _trap('Unhandled ir.${statement.runtimeType}  $statement');
+    pop();
+  }
+
+  void _trap(String message) {
     HInstruction nullValue = graph.addConstantNull(compiler);
     HInstruction errorMessage =
         graph.addConstantString(new DartString.literal(message), compiler);
     HInstruction trap = new HForeignCode(js.js.parseForeignJS("#.#"),
         backend.dynamicType, <HInstruction>[nullValue, errorMessage]);
     trap.sideEffects
       ..setAllSideEffects()
       ..setDependsOnSomething();
     push(trap);
   }
@@ skipping 1465 matching lines @@
     push(new HNot(popBoolified(), backend.boolType));
   }
 
   @override
   void visitStringConcatenation(ir.StringConcatenation stringConcat) {
     KernelStringBuilder stringBuilder = new KernelStringBuilder(this);
     stringConcat.accept(stringBuilder);
     stack.add(stringBuilder.result);
   }
 }