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This commit is contained in:
Alexey Kudravtsev
2017-05-14 14:35:49 +03:00
parent 18e81c7127
commit ac13cb0cc4
1 changed files with 5 additions and 1 deletions
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platform/util/src/com/intellij/util/containers/PeekableIterator.java
+5 -1
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@@ -20,9 +20,13 @@ import java.util.NoSuchElementException;
/**
* An iterator with additional ability to {@link #peek()} the current element without moving the cursor.
* Upon creation, {@link #peek()} returns the first element, after {@link #hasNext()} returns false might throw {@link NoSuchElementException}.
*/
public interface PeekableIterator<T> extends Iterator<T> {
/**
* @return the current element.
* Upon iterator creation should return the first element.
* After {@link #hasNext()} returned false might throw {@link NoSuchElementException}.
*/
T peek() throws NoSuchElementException;
PeekableIterator EMPTY = new PeekableIterator() {