public ExpressionPair expression_pair()
{
ExpressionPair pair = null;
IToken token = null;
try
{
Expression expression = this.expression();
token = this.LT(1);
this.match(0x42);
Expression expression2 = this.expression();
if (base.inputState.guessing == 0)
{
pair = new ExpressionPair(ToLexicalInfo(token), expression, expression2);
}
}
catch (RecognitionException exception)
{
if (base.inputState.guessing != 0)
{
throw;
}
this.reportError(exception);
this.recover(exception, tokenSet_40_);
return pair;
}
return pair;
}