KT-11203: report errors on read-write operations for elements of collections with inconsistent get&set signatures

2016-03-01 17:37:45 +03:00
parent cd91e44451
commit 3ca4097bcc
7 changed files with 128 additions and 6 deletions
@@ -0,0 +1,45 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+object Legal {
+    operator fun get(i: Int) = 0
+    operator fun set(i: Int, newValue: Int) {}
+    operator fun set(i: Int, newValue: String) {}
+}
+
+fun testLegal() {
+    ++Legal[0]
+    Legal[0]++
+    Legal[0] += 1
+}
+
+object MismatchingTypes {
+    operator fun get(i: Int) = 0
+    operator fun set(i: Int, newValue: String) {}
+}
+
+fun testMismatchingTypes() {
+    ++MismatchingTypes<!NO_SET_METHOD!>[0]<!>
+    MismatchingTypes<!NO_SET_METHOD!>[0]<!>++
+    MismatchingTypes<!NO_SET_METHOD!>[0]<!> += 1
+}
+
+object MismatchingArities1 {
+    operator fun get(i: Int) = 0
+    operator fun set(i: Int, j: Int, newValue: Int) {}
+}
+
+object MismatchingArities2 {
+    operator fun get(i: Int, j: Int) = 0
+    operator fun set(i: Int, newValue: Int) {}
+}
+
+fun testMismatchingArities() {
+    ++MismatchingArities1<!NO_SET_METHOD!>[0]<!>
+    MismatchingArities1<!NO_SET_METHOD!>[0]<!>++
+    MismatchingArities1<!NO_SET_METHOD!>[0]<!> += 1
+
+    ++<!NO_VALUE_FOR_PARAMETER!>MismatchingArities2[0]<!>
+    <!NO_VALUE_FOR_PARAMETER!>MismatchingArities2[0]<!>++
+    <!NO_VALUE_FOR_PARAMETER!>MismatchingArities2[0]<!> += 1
+}
+