hashCode generation for data classes

compiler/testData/codegen/dataClasses/hashcode/array.kt

@@ -0,0 +1,6 @@
+data class A(val a: IntArray, var b: Array<String>)
+
+fun box() : String {
+   if( A(intArray(1,2,3),array("239")).hashCode() != 31*java.util.Arrays.hashCode(intArray(0,1,2)) + "239".hashCode()) "fail"
+   return "OK"
+}

compiler/testData/codegen/dataClasses/hashcode/boolean.kt

@@ -0,0 +1,5 @@
+data class A(val a: Boolean)
+
+fun box() : String {
+   return if( A(true).hashCode()==1 && A(false).hashCode()==0 ) "OK" else "fail"
+}

compiler/testData/codegen/dataClasses/hashcode/byte.kt

@@ -0,0 +1,7 @@
+data class A(val a: Byte)
+
+fun box() : String {
+   val v1 = A(-10.toByte()).hashCode()
+   val v2 = (-10.toByte() as Byte?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/char.kt

@@ -0,0 +1,7 @@
+data class A(val a: Char)
+
+fun box() : String {
+   val v1 = A('a').hashCode()
+   val v2 = ('a' as Char?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/double.kt

@@ -0,0 +1,7 @@
+data class A(val a: Double)
+
+fun box() : String {
+   val v1 = A(-10.toDouble()).hashCode()
+   val v2 = (-10.toDouble() as Double?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/float.kt

@@ -0,0 +1,7 @@
+data class A(val a: Float)
+
+fun box() : String {
+   val v1 = A(-10.toFloat()).hashCode()
+   val v2 = (-10.toFloat() as Float?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/int.kt

@@ -0,0 +1,7 @@
+data class A(val a: Int)
+
+fun box() : String {
+   val v1 = A(-10.toInt()).hashCode()
+   val v2 = (-10.toInt() as Int?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/long.kt

@@ -0,0 +1,7 @@
+data class A(val a: Long)
+
+fun box() : String {
+   val v1 = A(-10.toLong()).hashCode()
+   val v2 = (-10.toLong() as Long?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}

compiler/testData/codegen/dataClasses/hashcode/null.kt

@@ -0,0 +1,16 @@
+data class A(val a: Any?, var x: Int)
+data class B(val a: Any?, x: Int)
+data class C(val a: Int, var x: Int?)
+data class D(val a: Int?)
+
+fun box() : String {
+   if( A(null,19).hashCode() != 19) "fail"
+   if( A(239,19).hashCode() != (239*31+19)) "fail"
+   if( B(null,19).hashCode() != 0) "fail"
+   if( B(239,19).hashCode() != 239) "fail"
+   if( C(239,19).hashCode() != (239*31+19)) "fail"
+   if( C(239,null).hashCode() != 239*31) "fail"
+   if( D(239).hashCode() != (239)) "fail"
+   if( D(null).hashCode() != 0) "fail"
+   return "OK"
+}

compiler/testData/codegen/dataClasses/hashcode/short.kt

@@ -0,0 +1,7 @@
+data class A(val a: Short)
+
+fun box() : String {
+   val v1 = A(-10.toShort()).hashCode()
+   val v2 = (-10.toShort() as Short?)!!.hashCode()
+   return if( v1 == v2 ) "OK" else "$v1 $v2"
+}