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Support equals, hashCode, toString for annotations instantiated with reflection

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#KT-13106 Fixed
This commit is contained in:
Alexander Udalov
2016-09-15 16:45:17 +03:00
parent 525937252d
commit 621c6691d0
9 changed files with 377 additions and 5 deletions
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compiler/testData/codegen/box/reflection/createAnnotation/equalsHashCodeToString.kt
Vendored
+46
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@@ -0,0 +1,46 @@
// WITH_REFLECT
package test
annotation class A
annotation class B(val s: String)
@A
@B("2")
fun javaReflectionAnnotationInstances() {}
fun box(): String {
val createA = A::class.constructors.single()
val a1 = createA.call()
if (a1.toString() != "@test.A()") return "Fail: toString does not correspond to the documentation of java.lang.annotation.Annotation#toString: $a1"
val a2 = createA.call()
if (a1 === a2) return "Fail: instances created by the constructor should be different"
if (a1 != a2) return "Fail: any instance of A should be equal to any other instance of A"
if (a1.hashCode() != a2.hashCode()) return "Fail: hash codes of equal instances should be equal"
if (a1.hashCode() != 0) return "Fail: hashCode does not correspond to the documentation of java.lang.annotation.Annotation#hashCode: ${a1.hashCode()}"
val createB = B::class.constructors.single()
val b1 = createB.call("1")
if (b1.toString() != "@test.B(s=1)") return "Fail: toString does not correspond to the documentation of java.lang.annotation.Annotation#toString: $b1"
if (b1 != b1) return "Fail: instance should be equal to itself"
val b2 = createB.call("2")
if (b1 == b2) return "Fail: instances with different data should not be equal"
if (b1.hashCode() == b2.hashCode()) return "Fail: hash codes of different instances should very likely be also different"
val a3 = ::javaReflectionAnnotationInstances.annotations.filterIsInstance<A>().single()
if (a1 === a3) return "Fail: instance created by the constructor and the one obtained from Java reflection should be different"
if (a1 != a3) return "Fail: instance created by the constructor should be equal to the one obtained from Java reflection"
if (a3 != a1) return "Fail: instance obtained from Java reflection should be equal to the one created by the constructor"
if (a1.hashCode() != a3.hashCode()) return "Fail: hash codes of equal instances should be equal"
val b3 = ::javaReflectionAnnotationInstances.annotations.filterIsInstance<B>().single()
if (b2 === b3) return "Fail: instance created by the constructor and the one obtained from Java reflection should be different"
if (b2 != b3) return "Fail: instance created by the constructor should be equal to the one obtained from Java reflection"
if (b3 != b2) return "Fail: instance obtained from Java reflection should be equal to the one created by the constructor"
if (b2.hashCode() != b3.hashCode()) return "Fail: hash codes of equal instances should be equal"
return "OK"
}