Add locations to diagnostics.

dart/lib/compiler/implementation/compile_time_constants.dart

 // Copyright (c) 2012, 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.
 
 class Constant implements Hashable {
   const Constant();
 
   bool isNull() => false;
   bool isBool() => false;
   bool isTrue() => false;
@@ skipping 207 matching lines @@
   bool operator ==(var other) => this === other;
   // The magic constant is just a random value. It does not have any
   // significance.
   int hashCode() => 536555975;
   DartString toDartString() => const LiteralDartString("false");
 }
 
 class StringConstant extends PrimitiveConstant {
   final DartString value;
   int _hashCode;
+  final Node node;
 
-  StringConstant(this.value) {
+  StringConstant(this.value, this.node) {
     // TODO(floitsch): cache StringConstants.
     // TODO(floitsch): compute hashcode without calling toString() on the
     // DartString.
     _hashCode = value.slowToString().hashCode();
   }
   bool isString() => true;
 
   void _writeJsCode(StringBuffer buffer, ConstantHandler handler) {
     buffer.add("'");
     ConstantHandler.writeEscapedString(value, buffer, (reason) {
-      throw new CompilerCancelledException(reason);
+      handler.compiler.reportError(node, reason);
     });
     buffer.add("'");
   }
 
   bool operator ==(var other) {
     if (other is !StringConstant) return false;
     StringConstant otherString = other;
     return (_hashCode == otherString._hashCode) && (value == otherString.value);
   }
 
@@ skipping 526 matching lines @@
     Constant constant = new MapConstant(type, keysList, values, protoValue);
     compiler.constantHandler.registerCompileTimeConstant(constant);
     return constant;
   }
 
   Constant visitLiteralNull(LiteralNull node) {
     return new NullConstant();
   }
 
   Constant visitLiteralString(LiteralString node) {
-    return new StringConstant(node.dartString);
+    return new StringConstant(node.dartString, node);
   }
 
   Constant visitStringJuxtaposition(StringJuxtaposition node) {
     StringConstant left = evaluate(node.first);
     StringConstant right = evaluate(node.second);
-    return new StringConstant(new DartString.concat(left.value, right.value));
+    return new StringConstant(new DartString.concat(left.value, right.value),
+                              node);
   }
 
   Constant visitStringInterpolation(StringInterpolation node) {
     StringConstant initialString = evaluate(node.string);
     DartString accumulator = initialString.value;
     for (StringInterpolationPart part in node.parts) {
       Constant expression = evaluate(part.expression);
       DartString expressionString;
       if (expression.isNum() || expression.isBool()) {
         PrimitiveConstant primitive = expression;
         expressionString = new DartString.literal(primitive.value.toString());
       } else if (expression.isString()) {
         PrimitiveConstant primitive = expression;
         expressionString = primitive.value;
       } else {
         error(part.expression);
       }
       accumulator = new DartString.concat(accumulator, expressionString);
       StringConstant partString = evaluate(part.string);
       accumulator = new DartString.concat(accumulator, partString.value);
     };
-    return new StringConstant(accumulator);
+    return new StringConstant(accumulator, node);
   }
 
   // TODO(floitsch): provide better error-messages.
   Constant visitSend(Send send) {
     Element element = elements[send];
     if (Elements.isStaticOrTopLevelField(element)) {
       if (element.modifiers === null ||
           !element.modifiers.isFinal()) {
         error(send);
       }
@@ skipping 318 matching lines @@
       Constant fieldValue = fieldValues[field];
       if (fieldValue === null) {
         // Use the default value.
         fieldValue = compiler.compileVariable(field);
       }
       jsNewArguments.add(fieldValue);
     });
     return jsNewArguments;
   }
 }