protected Import import_directive_()
{
Import returnValue;
IToken imp = null;
IToken dqs = null;
IToken sqs = null;
IToken alias = null;
Expression ns = null;
IToken id = null;
returnValue = null;
try { // for error handling
imp = LT(1);
match(IMPORT);
ns=namespace_expression();
if (0==inputState.guessing)
{
if (ns != null) returnValue = new Import(ToLexicalInfo(imp), ns);
}
{
switch ( LA(1) )
{
case FROM:
{
match(FROM);
{
switch ( LA(1) )
{
case THEN:
case ID:
{
id=identifier();
break;
}
case DOUBLE_QUOTED_STRING:
{
dqs = LT(1);
match(DOUBLE_QUOTED_STRING);
if (0==inputState.guessing)
{
id=dqs;
}
break;
}
case SINGLE_QUOTED_STRING:
{
sqs = LT(1);
match(SINGLE_QUOTED_STRING);
if (0==inputState.guessing)
{
id=sqs;
}
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
if (0==inputState.guessing)
{
returnValue.AssemblyReference = new ReferenceExpression(ToLexicalInfo(id), id.getText());
}
break;
}
case EOL:
case AS:
case EOS:
case QQ_END:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
{
switch ( LA(1) )
{
case AS:
{
match(AS);
alias = LT(1);
match(ID);
if (0==inputState.guessing)
{
returnValue.Alias = new ReferenceExpression(ToLexicalInfo(alias));
returnValue.Alias.Name = alias.getText();
}
break;
}
case EOL:
case EOS:
case QQ_END:
{
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex, "import_directive_");
recover(ex,tokenSet_23_);
}
else
{
throw ex;
}
}
return returnValue;
}
