Support const-bounded for loop generation for reversed 'until'

2017-12-12 15:07:31 +03:00
parent 54cceac99b
commit bf97b332cf
7 changed files with 86 additions and 10 deletions
@@ -0,0 +1,31 @@
+// WITH_RUNTIME
+import kotlin.test.*
+
+fun intLow() = 1
+fun intHigh() = 5
+fun longLow() = 1L
+fun longHigh() = 5L
+fun charLow() = '1'
+fun charHigh() = '5'
+
+fun box(): String {
+    var sum = 0
+    for (i in (intLow() until intHigh()).reversed()) {
+        sum = sum * 10 + i
+    }
+    assertEquals(4321, sum)
+
+    var sumL = 0L
+    for (i in (longLow() until longHigh()).reversed()) {
+        sumL = sumL * 10 + i
+    }
+    assertEquals(4321L, sumL)
+
+    var sumC = 0
+    for (i in (charLow() until charHigh()).reversed()) {
+        sumC = sumC * 10 + i.toInt() - '0'.toInt()
+    }
+    assertEquals(4321, sumC)
+
+    return "OK"
+}