Allow 'break' and 'continue' inside 'when' in 1.4+

2019-08-20 17:47:51 +03:00
parent 55cb9561c2
commit f06f6f4660
9 changed files with 136 additions and 16 deletions
@@ -0,0 +1,92 @@
+// !LANGUAGE: +AllowBreakAndContinueInsideWhen
+
+fun breakContinueInWhen(i: Int) {
+    for (y in 0..10) {
+        when(i) {
+            0 -> continue
+            1 -> break
+            2 -> {
+                for(z in 0..10) {
+                    break
+                }
+                for(w in 0..10) {
+                    continue
+                }
+            }
+        }
+    }
+}
+
+
+fun breakContinueInWhenWithWhile(i: Int, j: Int) {
+    while (i > 0) {
+        when (i) {
+            0 -> continue
+            1 -> break
+            2 -> {
+                while (j > 0) {
+                    break
+                }
+            }
+        }
+    }
+}
+
+fun breakContinueInWhenWithDoWhile(i: Int, j: Int) {
+    do {
+        when (i) {
+            0 -> continue
+            1 -> break
+            2 -> {
+                do {
+                    if (j == 5) break
+                    if (j == 10) continue
+                } while (j > 0)
+            }
+        }
+    } while (i > 0)
+}
+
+fun labeledBreakContinue(i: Int) {
+    outer@ for (y in 0..10) {
+        when (i) {
+            0 -> continue@outer
+            1 -> break@outer
+        }
+    }
+}
+
+fun testBreakContinueInWhenInWhileCondition() {
+    var i = 0
+    while (
+        when (i) {
+            1 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>break<!>
+            2 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>continue<!>
+            else -> true
+        }
+    ) {
+        ++i
+    }
+}
+
+fun testBreakContinueInWhenInDoWhileCondition() {
+    var i = 0
+    do {
+        ++i
+    } while (
+        when (i) {
+            1 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>break<!>
+            2 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>continue<!>
+            else -> true
+        }
+    )
+}
+
+fun testBreakContinueInWhenInForIteratorExpression(xs: List<Any>, i: Int) {
+    for (x in when (i) {
+        1 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>break<!>
+        2 -> <!BREAK_OR_CONTINUE_OUTSIDE_A_LOOP!>continue<!>
+        else -> xs
+    }) {
+    }
+}