Implement 'when' transformations (flatten, introduce subject, eliminate subject)

2013-04-26 14:33:59 +04:00
parent 3c691062ad
commit a1613d8b81
16 changed files with 825 additions and 0 deletions
@@ -0,0 +1,11 @@
+when {
+    n == 1 -> {
+        res = "one"
+    }
+    n == 2 -> {
+        res = "two"
+    }
+    else -> {
+        res = "???"
+    }
+}
@@ -0,0 +1,11 @@
+when (n) {
+    1 -> {
+        res = "one"
+    }
+    2 -> {
+        res = "two"
+    }
+    else -> {
+        res = "???"
+    }
+}
@@ -0,0 +1,5 @@
+<html>
+<body>
+This intention eliminates argument of 'when' expression transforming its pattern-matching conditions into boolean expressions
+</body>
+</html>
@@ -0,0 +1,17 @@
+when (n) {
+    1 -> {
+        res = "one"
+    }
+    2 -> {
+        res = "two"
+    }
+    3 -> {
+        res = "three"
+    }
+    4 -> {
+        res = "four"
+    }
+    else -> {
+        res = "???"
+    }
+}
@@ -0,0 +1,19 @@
+when (n) {
+    1 -> {
+        res = "one"
+    }
+    2 -> {
+        res = "two"
+    }
+    else -> when (n) {
+        3 -> {
+            res = "thress"
+        }
+        4 -> {
+            res = "four"
+        }
+        else -> {
+            res = "???"
+        }
+    }
+}
@@ -0,0 +1,5 @@
+<html>
+<body>
+This intention merges branches of nested 'when' expression into enclosing one
+</body>
+</html>
@@ -0,0 +1,11 @@
+when (n) {
+    1 -> {
+        res = "one"
+    }
+    2 -> {
+        res = "two"
+    }
+    else -> {
+        res = "???"
+    }
+}
@@ -0,0 +1,11 @@
+when {
+    n == 1 -> {
+        res = "one"
+    }
+    n == 2 -> {
+        res = "two"
+    }
+    else -> {
+        res = "???"
+    }
+}
@@ -0,0 +1,5 @@
+<html>
+<body>
+This intention introduces argument into 'when' expression simplifying conditions of its branches
+</body>
+</html>