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redundant casts in lambda return expressions (IDEA-132723)

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Anna Kozlova
2014-11-12 13:13:33 +01:00
parent 8a6e0a2a38
commit 89d1df1dc0
3 changed files with 123 additions and 1 deletions
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java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/redundantCast/LambdaReturnExpressions.java
+40
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@@ -0,0 +1,40 @@
import java.util.function.Supplier;
class Main {
private static void boom() {}
private static <R> void map (Supplier<R> fn) {}
private static void map1(Supplier<Runnable> fn) {}
public static void main(String[] args) {
Runnable r = () -> {};
map(() -> (Runnable) Main::boom );
map(() -> true ? (Runnable) Main::boom : (Runnable) Main::boom );
map(() -> {
return true ? (Runnable) Main::boom : (Runnable) Main::boom;
});
map(() -> true ? (Runnable) Main::boom : r );
map(() -> (true ? (Runnable)(Main::boom) : r));
map(() -> {
if (true) {
return (Runnable) Main::boom;
}
return (Runnable) Main::boom;
});
map1(() -> (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom);
map1(() -> true ? (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom : (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom);
map1(() -> {
return true ? (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom : (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom;
});
map1(() -> true ? (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom : r);
map1(() -> (true ? (<warning descr="Casting '(Main::boom)' to 'Runnable' is redundant">Runnable</warning>) (Main::boom) : r));
map1(() -> {
if (true) {
return (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom;
}
return (<warning descr="Casting 'Main::boom' to 'Runnable' is redundant">Runnable</warning>) Main::boom;
});
}
}