ValueIterator.ceylon
"A value iterator for a ‘`for`’ loop, enclosed in parentheses.
Examples:
(person in people)
(char in text)"
shared class ValueIterator(variable, iterated)
extends ForIterator() {
"The variable that holds the current iteration result."
shared UnspecifiedVariable variable;
shared actual Expression iterated;
shared actual [UnspecifiedVariable, Expression] children = [variable, iterated];
shared actual Result transform<out Result>(Transformer<Result> transformer)
=> transformer.transformValueIterator(this);
shared actual Boolean equals(Object that) {
if (is ValueIterator that) {
return variable == that.variable && iterated == that.iterated;
} else {
return false;
}
}
shared actual Integer hash
=> 31 * (variable.hash + 31 * iterated.hash);
shared ValueIterator copy(UnspecifiedVariable variable = this.variable, Expression iterated = this.iterated) {
value ret = ValueIterator(variable, iterated);
copyExtraInfoTo(ret);
return ret;
}
}