CPS implementation of throw and rethrow.

pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart

 // Copyright (c) 2014, 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.ir_tracer;
 
 import 'dart:async' show EventSink;
 
 import 'cps_ir_nodes.dart' as cps_ir hide Function;
 import '../tracer.dart';
@@ skipping 186 matching lines @@
     printStmt(dummy, "InvokeConstructor $callName ($args) $kont");
   }
 
   visitConcatenateStrings(cps_ir.ConcatenateStrings node) {
     String dummy = names.name(node);
     String args = node.arguments.map(formatReference).join(', ');
     String kont = formatReference(node.continuation);
     printStmt(dummy, "ConcatenateStrings ($args) $kont");
   }
 
+  visitThrow(cps_ir.Throw node) {
+    String dummy = names.name(node);
+    String value = formatReference(node.value);
+    printStmt(dummy, "Throw $value");
+  }
+
+  visitRethrow(cps_ir.Rethrow node) {
+    String dummy = names.name(node);
+    printStmt(dummy, "Rethrow");
+  }
+
   visitLiteralList(cps_ir.LiteralList node) {
     String dummy = names.name(node);
     String values = node.values.map(formatReference).join(', ');
     printStmt(dummy, "LiteralList ($values)");
   }
 
   visitLiteralMap(cps_ir.LiteralMap node) {
     String dummy = names.name(node);
     List<String> entries = new List<String>();
     for (cps_ir.LiteralMapEntry entry in node.entries) {
@@ skipping 116 matching lines @@
 
   visitCreateFunction(cps_ir.CreateFunction node) {
     return "CreateFunction ${node.definition.element.name}";
   }
 
   visitGetMutableVariable(cps_ir.GetMutableVariable node) {
     String variable = names.name(node.variable.definition);
     return 'GetMutableVariable $variable';
   }
 
-  @override
   visitReadTypeVariable(cps_ir.ReadTypeVariable node) {
     return "ReadTypeVariable ${node.variable.element} "
         "${formatReference(node.target)}";
   }
 
-  @override
   visitReifyRuntimeType(cps_ir.ReifyRuntimeType node) {
     return "ReifyRuntimeType ${formatReference(node.value)}";
   }
 
-  @override
   visitTypeExpression(cps_ir.TypeExpression node) {
     return "TypeExpression ${node.dartType} "
         "${node.arguments.map(formatReference).join(', ')}";
   }
+
+  visitNonTailThrow(cps_ir.NonTailThrow node) {
+    String value = formatReference(node.value);
+    return "NonTailThrow($value)";
+  }
 }
 
 /**
  * Invents (and remembers) names for Continuations, Parameters, etc.
  * The names must match the conventions used by IR Hydra, e.g.
  * Continuations and Functions must have names of form B### since they
  * are visualized as basic blocks.
  */
 class Names {
   final Map<Object, String> names = {};
@@ skipping 131 matching lines @@
   }
 
   visitInvokeConstructor(cps_ir.InvokeConstructor exp) {
     addEdgeToContinuation(exp.continuation);
   }
 
   visitConcatenateStrings(cps_ir.ConcatenateStrings exp) {
     addEdgeToContinuation(exp.continuation);
   }
 
+  visitThrow(cps_ir.Throw exp) {
+  }
+
+  visitRethrow(cps_ir.Rethrow exp) {
+  }
+
   visitSetMutableVariable(cps_ir.SetMutableVariable exp) {
     visit(exp.body);
   }
 
   visitSetField(cps_ir.SetField exp) {
     visit(exp.body);
   }
 
   visitDeclareFunction(cps_ir.DeclareFunction exp) {
     visit(exp.body);
@@ skipping 63 matching lines @@
   visitIsTrue(cps_ir.IsTrue node) {
     unexpectedNode(node);
   }
   visitIdentical(cps_ir.Identical node) {
     unexpectedNode(node);
   }
   visitInterceptor(cps_ir.Interceptor node) {
     unexpectedNode(node);
   }
 
-  @override
   visitReadTypeVariable(cps_ir.ReadTypeVariable node) {
     unexpectedNode(node);
   }
 
-  @override
   visitReifyRuntimeType(cps_ir.ReifyRuntimeType node) {
     unexpectedNode(node);
   }
 
-  @override
   visitTypeExpression(cps_ir.TypeExpression node) {
     unexpectedNode(node);
   }
+
+  visitNonTailThrow(cps_ir.NonTailThrow node) {
+    unexpectedNode(node);
+  }
 }