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Get rid of 'unchecked' warnings

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This commit is contained in:
Zafar Khaja 2013-11-20 20:21:03 +04:00
parent 6df67e8de2
commit d39c3f439a
1 changed files with 18 additions and 6 deletions
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24
src/main/java/com/github/zafarkhaja/semver/util/Stream.java
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@ -98,11 +98,14 @@ public class Stream<E> implements Iterable<E> {
* Consumes the next element in this stream
* only if it is of the expected types.
*
* @param <T> represents the element type of this stream, removes the
* "unchecked generic array creation for varargs parameter"
* warnings
* @param expected the types which are expected
* @return the next element in this stream
* @throws UnexpectedElementTypeException if the next element is of an unexpected type
*/
public E consume(ElementType<E>... expected) {
public <T extends ElementType<E>> E consume(T... expected) {
E lookahead = lookahead(1);
for (ElementType<E> type : expected) {
if (type.isMatchedBy(lookahead)) {
@ -140,11 +143,14 @@ public class Stream<E> implements Iterable<E> {
/**
* Checks if the next element in this stream is of the expected types.
*
* @param <T> represents the element type of this stream, removes the
* "unchecked generic array creation for varargs parameter"
* warnings
* @param expected the expected types
* @return {@code true} if the next element is of the expected types
* or {@code false} otherwise
*/
public boolean positiveLookahead(ElementType<E>... expected) {
public <T extends ElementType<E>> boolean positiveLookahead(T... expected) {
for (ElementType<E> type : expected) {
if (type.isMatchedBy(lookahead(1))) {
return true;
@ -157,14 +163,17 @@ public class Stream<E> implements Iterable<E> {
* Checks if there exists an element in this stream of
* the expected types before the specified type.
*
* @param <T> represents the element type of this stream, removes the
* "unchecked generic array creation for varargs parameter"
* warnings
* @param before the type before which to search
* @param expected the expected types
* @return {@code true} if there is an element of the expected types
* before the specified type or {@code false} otherwise
*/
public boolean positiveLookaheadBefore(
public <T extends ElementType<E>> boolean positiveLookaheadBefore(
ElementType<E> before,
ElementType<E>... expected
T... expected
) {
E lookahead;
for (int i = 1; i <= elements.length; i++) {
@ -185,14 +194,17 @@ public class Stream<E> implements Iterable<E> {
* Checks if there is an element in this stream of
* the expected types until the specified position.
*
* @param <T> represents the element type of this stream, removes the
* "unchecked generic array creation for varargs parameter"
* warnings
* @param until the position until which to search
* @param expected the expected types
* @return {@code true} if there is an element of the expected types
* until the specified position or {@code false} otherwise
*/
public boolean positiveLookaheadUntil(
public <T extends ElementType<E>> boolean positiveLookaheadUntil(
int until,
ElementType<E>... expected
T... expected
) {
for (int i = 1; i <= until; i++) {
for (ElementType<E> type : expected) {