public static EXPRESSION parse(iSCOPE context)
{
Token token = get();
forget();
Span begin = token.span;
CONDITIONAL result = new CONDITIONAL();
EXPRESSION elsePart = null;
EXPRESSION condition = EXPRESSION.parse(null, context);
expect(TokenCode.Then);
EXPRESSION thenPart = EXPRESSION.parse(null, context);
COND_IF_THEN cit = new COND_IF_THEN(condition, thenPart);
condition.parent = result;
thenPart.parent = result;
cit.parent = result;
result.add(cit);
token = get();
while (true)
{
if (token.code == TokenCode.Elsif)
{
forget();
condition = EXPRESSION.parse(null, context);
expect(TokenCode.Then);
thenPart = EXPRESSION.parse(null, context);
cit = new COND_IF_THEN(condition, thenPart);
cit.setSpan(token.span, thenPart.span);
condition.parent = result;
thenPart.parent = result;
cit.parent = result;
result.add(cit);
token = get();
// go to next iteration
}
else
{
break;
}
}
token = expect(TokenCode.Else);
elsePart = EXPRESSION.parse(null, context);
elsePart.parent = result;
result.add(elsePart);
result.setSpan(begin, elsePart.span);
// context.add(result); ?? why ??
return(result);
}
public void add(COND_IF_THEN cit)
{
ifThenParts.Add(cit); cit.parent = this;
}
