Support equals/hashCode for fun interfaces in JVM and JVM_IR

#KT-33455 Fixed
2020-03-23 11:23:49 +01:00
parent de461dd9a5
commit 9fa8e009c6
25 changed files with 1036 additions and 23 deletions
@@ -0,0 +1,47 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_FIR: JVM_IR
+// FILE: test.kt
+
+fun checkNotEqual(x: Any, y: Any) {
+    if (x == y || y == x) throw AssertionError("$x and $y should NOT be equal")
+}
+
+private fun id(f: Runnable): Any = f
+
+class C {
+    fun target1() {}
+    fun target2() {}
+    
+    fun adapted1(s: String? = null): String = s!!
+    fun adapted2(vararg s: String): String = s[0]
+}
+
+fun box(): String {
+    // Since 1.0, SAM wrappers for Java do not implement equals/hashCode
+    val c0 = C()
+
+    checkNotEqual(id(c0::target1), id(c0::target1))
+    checkNotEqual(id(c0::target1), target1FromOtherFile(c0))
+    checkNotEqual(id(c0::target1), id(c0::target2))
+
+    checkNotEqual(id(c0::adapted1), id(c0::adapted1))
+    checkNotEqual(id(c0::adapted1), adapted1FromOtherFile(c0))
+    checkNotEqual(id(c0::adapted2), id(c0::adapted2))
+    checkNotEqual(id(c0::adapted2), adapted2FromOtherFile(c0))
+    checkNotEqual(id(c0::adapted1), id(c0::adapted2))
+
+    val c1 = C()
+    checkNotEqual(id(c0::target1), id(c1::target1))
+    checkNotEqual(id(c0::target1), id(c1::target2))
+    checkNotEqual(id(c0::adapted1), id(c1::adapted1))
+
+    return "OK"
+}
+
+// FILE: fromOtherFile.kt
+
+private fun id(f: Runnable): Any = f
+
+fun target1FromOtherFile(c0: C): Any = id(c0::target1)
+fun adapted1FromOtherFile(c0: C): Any = id(c0::adapted1)
+fun adapted2FromOtherFile(c0: C): Any = id(c0::adapted2)