Support symbol literals.

sdk/lib/_internal/compiler/implementation/scanner/parser.dart

Index: sdk/lib/_internal/compiler/implementation/scanner/parser.dart
diff --git a/sdk/lib/_internal/compiler/implementation/scanner/parser.dart b/sdk/lib/_internal/compiler/implementation/scanner/parser.dart
index ee84b4c57e6afc1cabc217f1b25c259f19d1e1d0..6488956f928f5ed9070fad7a3083dcac1ecdce5f 100644
--- a/sdk/lib/_internal/compiler/implementation/scanner/parser.dart
+++ b/sdk/lib/_internal/compiler/implementation/scanner/parser.dart
@@ -1483,6 +1483,8 @@ class Parser {
       return parseLiteralDouble(token);
     } else if (identical(kind, STRING_TOKEN)) {
       return parseLiteralString(token);
+    } else if (identical(kind, HASH_TOKEN)) {
+      return parseSymbolLiteral(token);  
     } else if (identical(kind, KEYWORD_TOKEN)) {
       final value = token.stringValue;
       if ((identical(value, 'true')) || (identical(value, 'false'))) {
@@ -1703,6 +1705,26 @@ class Parser {
     return token;
   }
 
+  Token parseSymbolLiteral(Token token) {
+    Token hashToken = token;
+    listener.beginSymbolLiteral(hashToken);
+    token = token.next;
+    if (isUserDefinableOperator(token.stringValue)) {
+      listener.endSymbolLiteral(hashToken, token, 0);
+      return token.next;
+    } else {
+      int count = 1;
+      token = parseIdentifier(token);

[ahe, 2013/08/06 12:20:55]

Can you use parseQualified?

[Johnni Winther, 2013/09/03 12:27:50]

No. Then I will get one Send instead of a NodeList.

+      while (identical(token.stringValue, '.')) {
+        count++;
+        token = parseIdentifier(token.next);
+      }
+      listener.endSymbolLiteral(hashToken, null, count);
+      return token;
+    }
+  }
+
+

[ahe, 2013/08/06 12:20:55]

Extra line.

[Johnni Winther, 2013/09/03 12:27:50]

Done.

   /**
    * Only called when [:token.kind === STRING_TOKEN:].
    */