fix(parser): handle empty strings

2014-11-25 18:38:28 -08:00
parent 6f889e3094
commit a3d9f0fead
3 changed files with 19 additions and 2 deletions
--- a/modules/change_detection/src/parser/parser.js
+++ b/modules/change_detection/src/parser/parser.js
@ -5,6 +5,7 @@ import {Lexer, EOF, Token, $PERIOD, $COLON, $SEMICOLON, $LBRACKET, $RBRACKET,
 import {reflector, Reflector} from 'reflection/reflection';
 import {
  AST,
+  EmptyExpr,
  ImplicitReceiver,
  AccessMember,
  LiteralPrimitive,
@ -146,7 +147,9 @@ class _ParseAST {
        this.error(`Unexpected token '${this.next}'`);
      }
    }
-    return exprs.length == 1 ? exprs[0] : new Chain(exprs);
+    if (exprs.length == 0) return new EmptyExpr();
+    if (exprs.length == 1) return exprs[0];
+    return new Chain(exprs);
  }

  parseFormatter() {