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Ignore primitive casts in ClassCastLambdaUsage check #1385

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merged 2 commits into from
Oct 30, 2024
Merged

Ignore primitive casts in ClassCastLambdaUsage check #1385

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438a0b3
Exclude primitives in `ClassCastLambdaUsage` check
mohamedsamehsalah Oct 30, 2024
5754634
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Stephan202 Oct 30, 2024
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2 changes: 1 addition & 1 deletion ...-prone-contrib/src/main/java/tech/picnic/errorprone/bugpatterns/ClassCastLambdaUsage.java
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@
}

Type type = ASTHelpers.getType(typeCast);
if (type == null || type.isParameterized()) {
if (type == null || type.isParameterized() || type.isPrimitive()) {

Check warning on line 51 in error-prone-contrib/src/main/java/tech/picnic/errorprone/bugpatterns/ClassCastLambdaUsage.java

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A change can be made to line 51 without causing a test to fail 

removed conditional - replaced equality check with true (covered by 2 tests RemoveConditionalMutator_EQUAL_IF)
return Description.NO_MATCH;
}

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2 changes: 2 additions & 0 deletions ...ne-contrib/src/test/java/tech/picnic/errorprone/bugpatterns/ClassCastLambdaUsageTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ void identification() {
.addSourceLines(
"A.java",
"import com.google.common.collect.ImmutableSet;",
"import java.util.stream.IntStream;",
"import java.util.stream.Stream;",
"",
"class A {",
Expand All @@ -34,6 +35,7 @@ void identification() {
" Stream.<ImmutableSet>of(ImmutableSet.of(5)).map(l -> (ImmutableSet<Number>) l);",
" Stream.of(ImmutableSet.of(6)).map(l -> (ImmutableSet<?>) l);",
" Stream.of(7).reduce((a, b) -> (Integer) a);",
" IntStream.of(8).mapToObj(a -> (char) a);",
"",
" // BUG: Diagnostic contains:",
" Stream.of(8).map(i -> (Integer) i);",
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