LongStreamRules

SUGGESTION

Simplification

View source code on GitHub

Suppression

Disable all rules by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$).* as compiler argument.

Table of contents

1. LongStreamClosedOpenRange
2. ConcatOneLongStream
3. ConcatTwoLongStreams
4. FilterOuterLongStreamAfterFlatMap
5. FilterOuterStreamAfterFlatMapToLong
6. MapOuterLongStreamAfterFlatMap
7. MapOuterStreamAfterFlatMapToLong
8. FlatMapOuterLongStreamAfterFlatMap
9. FlatMapOuterStreamAfterFlatMapToLong
10. LongStreamFilterSorted
11. LongStreamIsEmpty
12. LongStreamIsNotEmpty
13. LongStreamMin
14. LongStreamNoneMatch
15. LongStreamNoneMatch2
16. LongStreamAnyMatch
17. LongStreamAllMatch
18. LongStreamAllMatch2
19. LongStreamTakeWhile

LongStreamClosedOpenRange

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamClosedOpenRange") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamClosedOpenRange).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testLongStreamClosedOpenRange() {
-  return LongStream.rangeClosed(0, 42 - 1);
+  return LongStream.range(0, 42);
 }

ConcatOneLongStream

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("ConcatOneLongStream") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$ConcatOneLongStream).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testConcatOneLongStream() {
-  return Streams.concat(LongStream.of(1));
+  return LongStream.of(1);
 }

ConcatTwoLongStreams

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("ConcatTwoLongStreams") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$ConcatTwoLongStreams).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testConcatTwoLongStreams() {
-  return Streams.concat(LongStream.of(1), LongStream.of(2));
+  return LongStream.concat(LongStream.of(1), LongStream.of(2));
 }

FilterOuterLongStreamAfterFlatMap

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("FilterOuterLongStreamAfterFlatMap") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$FilterOuterLongStreamAfterFlatMap).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testFilterOuterLongStreamAfterFlatMap() {
-  return LongStream.of(1).flatMap(v -> LongStream.of(v * v).filter(n -> n > 1));
+  return LongStream.of(1).flatMap(v -> LongStream.of(v * v)).filter(n -> n > 1);
 }

FilterOuterStreamAfterFlatMapToLong

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("FilterOuterStreamAfterFlatMapToLong") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$FilterOuterStreamAfterFlatMapToLong).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testFilterOuterStreamAfterFlatMapToLong() {
-  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v).filter(n -> n > 1));
+  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v)).filter(n -> n > 1);
 }

MapOuterLongStreamAfterFlatMap

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("MapOuterLongStreamAfterFlatMap") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$MapOuterLongStreamAfterFlatMap).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testMapOuterLongStreamAfterFlatMap() {
-  return LongStream.of(1).flatMap(v -> LongStream.of(v * v).map(n -> n * 1));
+  return LongStream.of(1).flatMap(v -> LongStream.of(v * v)).map(n -> n * 1);
 }

MapOuterStreamAfterFlatMapToLong

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("MapOuterStreamAfterFlatMapToLong") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$MapOuterStreamAfterFlatMapToLong).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testMapOuterStreamAfterFlatMapToLong() {
-  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v).map(n -> n * 1));
+  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v)).map(n -> n * 1);
 }

FlatMapOuterLongStreamAfterFlatMap

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("FlatMapOuterLongStreamAfterFlatMap") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$FlatMapOuterLongStreamAfterFlatMap).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testFlatMapOuterLongStreamAfterFlatMap() {
-  return LongStream.of(1).flatMap(v -> LongStream.of(v * v).flatMap(LongStream::of));
+  return LongStream.of(1).flatMap(v -> LongStream.of(v * v)).flatMap(LongStream::of);
 }

FlatMapOuterStreamAfterFlatMapToLong

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("FlatMapOuterStreamAfterFlatMapToLong") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$FlatMapOuterStreamAfterFlatMapToLong).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testFlatMapOuterStreamAfterFlatMapToLong() {
-  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v).flatMap(LongStream::of));
+  return Stream.of(1).flatMapToLong(v -> LongStream.of(v * v)).flatMap(LongStream::of);
 }

LongStreamFilterSorted

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamFilterSorted") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamFilterSorted).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testLongStreamFilterSorted() {
-  return LongStream.of(1, 4, 3, 2).sorted().filter(l -> l % 2 == 0);
+  return LongStream.of(1, 4, 3, 2).filter(l -> l % 2 == 0).sorted();
 }

LongStreamIsEmpty

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamIsEmpty") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamIsEmpty).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 ImmutableSet<Boolean> testLongStreamIsEmpty() {
   return ImmutableSet.of(
-      LongStream.of(1).count() == 0,
-      LongStream.of(2).count() <= 0,
-      LongStream.of(3).count() < 1,
-      LongStream.of(4).findFirst().isEmpty());
+      LongStream.of(1).findAny().isEmpty(),
+      LongStream.of(2).findAny().isEmpty(),
+      LongStream.of(3).findAny().isEmpty(),
+      LongStream.of(4).findAny().isEmpty());
 }

LongStreamIsNotEmpty

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamIsNotEmpty") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamIsNotEmpty).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 ImmutableSet<Boolean> testLongStreamIsNotEmpty() {
   return ImmutableSet.of(
-      LongStream.of(1).count() != 0,
-      LongStream.of(2).count() > 0,
-      LongStream.of(3).count() >= 1,
-      LongStream.of(4).findFirst().isPresent());
+      LongStream.of(1).findAny().isPresent(),
+      LongStream.of(2).findAny().isPresent(),
+      LongStream.of(3).findAny().isPresent(),
+      LongStream.of(4).findAny().isPresent());
 }

LongStreamMin

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamMin") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamMin).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 OptionalLong testLongStreamMin() {
-  return LongStream.of(1).sorted().findFirst();
+  return LongStream.of(1).min();
 }

LongStreamNoneMatch

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamNoneMatch") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamNoneMatch).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 ImmutableSet<Boolean> testLongStreamNoneMatch() {
   LongPredicate pred = i -> i > 0;
   return ImmutableSet.of(
-      !LongStream.of(1).anyMatch(n -> n > 1),
-      LongStream.of(2).allMatch(pred.negate()),
-      LongStream.of(3).filter(pred).findAny().isEmpty());
+      LongStream.of(1).noneMatch(n -> n > 1),
+      LongStream.of(2).noneMatch(pred),
+      LongStream.of(3).noneMatch(pred));
 }

LongStreamNoneMatch2

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamNoneMatch2") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamNoneMatch2).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 boolean testLongStreamNoneMatch2() {
-  return LongStream.of(1).allMatch(n -> !(n > 1));
+  return LongStream.of(1).noneMatch(n -> n > 1);
 }

LongStreamAnyMatch

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamAnyMatch") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamAnyMatch).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 ImmutableSet<Boolean> testLongStreamAnyMatch() {
   return ImmutableSet.of(
-      !LongStream.of(1).noneMatch(n -> n > 1),
-      LongStream.of(2).filter(n -> n > 2).findAny().isPresent());
+      LongStream.of(1).anyMatch(n -> n > 1), LongStream.of(2).anyMatch(n -> n > 2));
 }

LongStreamAllMatch

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamAllMatch") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamAllMatch).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 boolean testLongStreamAllMatch() {
   LongPredicate pred = i -> i > 0;
-  return LongStream.of(1).noneMatch(pred.negate());
+  return LongStream.of(1).allMatch(pred);
 }

LongStreamAllMatch2

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamAllMatch2") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamAllMatch2).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 boolean testLongStreamAllMatch2() {
-  return LongStream.of(1).noneMatch(n -> !(n > 1));
+  return LongStream.of(1).allMatch(n -> n > 1);
 }

LongStreamTakeWhile

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("LongStreamTakeWhile") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!LongStreamRules\$LongStreamTakeWhile).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 LongStream testLongStreamTakeWhile() {
-  return LongStream.of(1, 2, 3).takeWhile(i -> i < 2).filter(i -> i < 2);
+  return LongStream.of(1, 2, 3).takeWhile(i -> i < 2);
 }