New Intention Action: Invert If Condition

Inverts the conditional expression in an if expression.

idea/testData/intentions/invertIfCondition/assignedToValue.kt

@@ -0,0 +1,4 @@
+fun main() {
+    val a = -1
+    val t = <caret>if (a > 0) a else -a
+}

idea/testData/intentions/invertIfCondition/assignedToValue.kt.after

@@ -0,0 +1,4 @@
+fun main() {
+    val a = -1
+    val t = if (a <= 0) -a else a
+}

idea/testData/intentions/invertIfCondition/binaryExpression.kt

@@ -0,0 +1,11 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    <caret>if (foo() && foo()) {
+        foo()
+    } else {
+        foo()
+    }
+}

idea/testData/intentions/invertIfCondition/binaryExpression.kt.after

@@ -0,0 +1,11 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    if (!(foo() && foo())) {
+        foo()
+    } else {
+        foo()
+    }
+}

idea/testData/intentions/invertIfCondition/booleanLiteral.kt

@@ -0,0 +1,7 @@
+fun main() {
+    <caret>if (true) {
+
+    } else {
+
+    }
+}

idea/testData/intentions/invertIfCondition/booleanLiteral.kt.after

@@ -0,0 +1,5 @@
+fun main() {
+    if (false) {
+
+    }
+}

idea/testData/intentions/invertIfCondition/branchingIfStatements.kt

@@ -0,0 +1,10 @@
+fun main() {
+    val a = 10
+
+    <caret>if (a > 0)
+        a
+    else if (a < -5)
+        a + 1
+    else
+        a + 2
+}

idea/testData/intentions/invertIfCondition/branchingIfStatements.kt.after

@@ -0,0 +1,10 @@
+fun main() {
+    val a = 10
+
+    if (a <= 0) {
+        if (a < -5)
+            a + 1
+        else
+            a + 2
+    } else a
+}

idea/testData/intentions/invertIfCondition/forLoopWithMultipleExpressions.kt

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+fun main() {
+    val list = 1..4
+
+    for (x in list) {
+        <caret>if (x == 2) {
+            list
+        }
+        list.equals(list)
+    }
+}

idea/testData/intentions/invertIfCondition/forLoopWithMultipleExpressions.kt.after

@@ -0,0 +1,12 @@
+// WITH_RUNTIME
+fun main() {
+    val list = 1..4
+
+    for (x in list) {
+        if (x != 2) {
+        } else {
+            list
+        }
+        list.equals(list)
+    }
+}

idea/testData/intentions/invertIfCondition/functionWithReturnExpression.kt

@@ -0,0 +1,9 @@
+fun foo(): Int {
+    val x = 0
+
+    <caret>if (x == 1) {
+        x + 1
+    }
+
+    return x
+}

idea/testData/intentions/invertIfCondition/functionWithReturnExpression.kt.after

@@ -0,0 +1,10 @@
+fun foo(): Int {
+    val x = 0
+
+    if (x != 1) {
+    } else {
+        x + 1
+    }
+
+    return x
+}

idea/testData/intentions/invertIfCondition/ifExpressionInsideForLoop.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+fun main() {
+    val list = 1..4
+
+    for (x in list) {
+        <caret>if (x == 2) {
+            list
+        }
+    }
+}

idea/testData/intentions/invertIfCondition/ifExpressionInsideForLoop.kt.after

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+fun main() {
+    val list = 1..4
+
+    for (x in list) {
+        if (x != 2) {
+        } else {
+            list
+        }
+    }
+}

idea/testData/intentions/invertIfCondition/ifExpressionWithReturn.kt

@@ -0,0 +1,8 @@
+fun foo(): Int {
+    val x = 0
+
+    <caret>if (x == 1)
+        return x + 1
+
+    return 0
+}

idea/testData/intentions/invertIfCondition/ifExpressionWithReturn.kt.after

@@ -0,0 +1,8 @@
+fun foo(): Int {
+    val x = 0
+
+    if (x != 1) {
+    } else return x + 1
+
+    return 0
+}

idea/testData/intentions/invertIfCondition/invertableOperator.kt

@@ -0,0 +1,5 @@
+fun main() {
+    <caret>if (true == false) {
+
+    }
+}

idea/testData/intentions/invertIfCondition/invertableOperator.kt.after

@@ -0,0 +1,4 @@
+fun main() {
+    if (true != false) {
+    }
+}

idea/testData/intentions/invertIfCondition/negatedExpression.kt

@@ -0,0 +1,9 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    <caret>if (!foo()) {
+
+    }
+}

idea/testData/intentions/invertIfCondition/negatedExpression.kt.after

@@ -0,0 +1,8 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    if (foo()) {
+    }
+}

idea/testData/intentions/invertIfCondition/returnIfExpression.kt

@@ -0,0 +1,9 @@
+fun foo(): Int {
+    val a = 10
+
+    return <caret>if (a > 0) {
+        a
+    } else {
+        a + 1
+    }
+}

idea/testData/intentions/invertIfCondition/returnIfExpression.kt.after

@@ -0,0 +1,9 @@
+fun foo(): Int {
+    val a = 10
+
+    return if (a <= 0) {
+        a + 1
+    } else {
+        a
+    }
+}

idea/testData/intentions/invertIfCondition/simple.kt

@@ -0,0 +1,9 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    <caret>if (foo()) {
+
+    }
+}

idea/testData/intentions/invertIfCondition/simple.kt.after

@@ -0,0 +1,8 @@
+fun foo(): Boolean {
+    return true
+}
+
+fun main() {
+    <caret>if (!foo()) {
+    }
+}

idea/testData/intentions/invertIfCondition/valueAndReturnBranches.kt

@@ -0,0 +1,6 @@
+fun foo(): Int {
+    val a = 1
+    val t = <caret>if (a > 1) a else return 0
+
+    return t
+}

idea/testData/intentions/invertIfCondition/valueAndReturnBranches.kt.after

@@ -0,0 +1,6 @@
+fun foo(): Int {
+    val a = 1
+    val t = if (a <= 1) return 0 else a
+
+    return t
+}