}
pushOnExpressionStack(stringLiteral);
break;
case TokenNamefalse :
pushOnExpressionStack(
new FalseLiteral(this.scanner.startPosition, this.scanner.currentPosition - 1));
break;
case TokenNametrue :
pushOnExpressionStack(
new TrueLiteral(this.scanner.startPosition, this.scanner.currentPosition - 1));
break;