package jetbrains.mps.baseLanguage.collections.samples.sequence_queries;
/*Generated by MPS */
import jetbrains.mps.internal.collections.runtime.Sequence;
import jetbrains.mps.internal.collections.runtime.ISequenceClosure;
import java.util.Iterator;
import jetbrains.mps.baseLanguage.closures.runtime.YieldingIterator;
import jetbrains.mps.baseLanguage.closures.runtime.Wrappers;
import jetbrains.mps.internal.collections.runtime.IWhereFilter;
import jetbrains.mps.internal.collections.runtime.ISelector;
/*package*/ class Main_where_select_operations {
/*package*/ Main_where_select_operations() {
}
/*package*/ static void main(String[] args) {
Iterable<Integer> nums = Sequence.fromClosure(new ISequenceClosure<Integer>() {
public Iterable<Integer> iterable() {
return new Iterable<Integer>() {
public Iterator<Integer> iterator() {
return new YieldingIterator<Integer>() {
private int __CP__ = 0;
protected boolean moveToNext() {
__loop__:
do {
__switch__:
switch (this.__CP__) {
case -1:
assert false : "Internal error";
return false;
case 2:
this._2_i = 0;
case 3:
if (!(_2_i < 10)) {
this.__CP__ = 1;
break;
}
this.__CP__ = 4;
break;
case 5:
_2_i++;
this.__CP__ = 3;
break;
case 6:
this.__CP__ = 5;
this.yield(_2_i);
return true;
case 0:
this.__CP__ = 2;
break;
case 4:
this.__CP__ = 6;
break;
default:
break __loop__;
}
} while (true);
return false;
}
private int _2_i;
};
}
};
}
});
System.out.println("from sequence of 10 numbers,");
System.out.println("where num is even,");
System.out.println("produce string");
final Wrappers._int count = new Wrappers._int(0);
Iterable<String> strings = Sequence.fromIterable(nums).where(new IWhereFilter<Integer>() {
public boolean accept(Integer n) {
return n % 2 == 0;
}
}).select(new ISelector<Integer, String>() {
public String select(Integer n) {
count.value++;
return "num:" + n;
}
});
System.out.println("count (before):" + count.value);
for (String s : strings) {
System.out.println(s);
}
System.out.println("count (after):" + count.value);
}
}