Refactored FoldBranchedExpressionIntention removing common subclass and FoldableKind

This commit is contained in:
Valentin Kipyatkov
2015-05-09 11:24:06 +03:00
parent d77b77809c
commit 832b4fb8d8
4 changed files with 47 additions and 118 deletions
@@ -212,16 +212,8 @@ surround.with.cannot.perform.action=Cannot perform Surround With action to the c
remove.variable.family.name=Remove variable
remove.variable.action=Remove variable ''{0}''
kotlin.code.transformations=Kotlin Code Transformations
fold.if.to.assignment=Replace 'if' expression with assignment
fold.if.to.assignment.family=Replace 'if' Expression with Assignment
fold.if.to.return=Replace 'if' expression with return
fold.if.to.return.family=Replace 'if' Expression with Return
fold.if.to.call=Replace 'if' expression with method call
fold.if.to.call.family=Replace 'if' Expression with Method Call
fold.when.to.assignment=Replace 'when' expression with assignment
fold.when.to.assignment.family=Replace 'when' Expression with Assignment
fold.when.to.return=Replace 'when' expression with return
fold.when.to.return.family=Replace 'when' Expression with Return
fold.when.to.call=Replace 'when' expression with method call
fold.when.to.call.family=Replace 'when' Expression with Method Call
unfold.assignment.to.if=Replace assignment with 'if' expression
@@ -55,7 +55,7 @@ public object BranchedFoldingUtils {
return a1.getLeft()?.getText() == a2.getLeft()?.getText() && a1.getOperationToken() == a2.getOperationToken()
}
private fun checkFoldableIfExpressionWithAssignments(ifExpression: JetIfExpression): Boolean {
public fun checkFoldableIfExpressionWithAssignments(ifExpression: JetIfExpression): Boolean {
val thenBranch = ifExpression.getThen()
val elseBranch = ifExpression.getElse()
@@ -67,7 +67,7 @@ public object BranchedFoldingUtils {
return checkAssignmentsMatch(thenAssignment, elseAssignment)
}
private fun checkFoldableWhenExpressionWithAssignments(whenExpression: JetWhenExpression): Boolean {
public fun checkFoldableWhenExpressionWithAssignments(whenExpression: JetWhenExpression): Boolean {
if (!JetPsiUtil.checkWhenExpressionHasSingleElse(whenExpression)) return false
val entries = whenExpression.getEntries()
@@ -90,11 +90,11 @@ public object BranchedFoldingUtils {
return true
}
private fun checkFoldableIfExpressionWithReturns(ifExpression: JetIfExpression): Boolean {
public fun checkFoldableIfExpressionWithReturns(ifExpression: JetIfExpression): Boolean {
return getFoldableBranchedReturn(ifExpression.getThen()) != null && getFoldableBranchedReturn(ifExpression.getElse()) != null
}
private fun checkFoldableWhenExpressionWithReturns(whenExpression: JetWhenExpression): Boolean {
public fun checkFoldableWhenExpressionWithReturns(whenExpression: JetWhenExpression): Boolean {
if (!JetPsiUtil.checkWhenExpressionHasSingleElse(whenExpression)) return false
val entries = whenExpression.getEntries()
@@ -108,7 +108,7 @@ public object BranchedFoldingUtils {
return true
}
private fun checkFoldableIfExpressionWithAsymmetricReturns(ifExpression: JetIfExpression): Boolean {
public fun checkFoldableIfExpressionWithAsymmetricReturns(ifExpression: JetIfExpression): Boolean {
if (getFoldableBranchedReturn(ifExpression.getThen()) == null || ifExpression.getElse() != null) {
return false
}
@@ -117,22 +117,6 @@ public object BranchedFoldingUtils {
return (nextElement is JetExpression) && getFoldableBranchedReturn(nextElement) != null
}
public fun getFoldableExpressionKind(root: JetExpression?): FoldableKind? {
if (root is JetIfExpression) {
if (checkFoldableIfExpressionWithAssignments(root)) return FoldableKind.IF_TO_ASSIGNMENT
if (checkFoldableIfExpressionWithReturns(root)) return FoldableKind.IF_TO_RETURN
if (checkFoldableIfExpressionWithAsymmetricReturns(root)) return FoldableKind.IF_TO_RETURN_ASYMMETRICALLY
}
else if (root is JetWhenExpression) {
if (checkFoldableWhenExpressionWithAssignments(root)) return FoldableKind.WHEN_TO_ASSIGNMENT
if (checkFoldableWhenExpressionWithReturns(root)) return FoldableKind.WHEN_TO_RETURN
}
return null
}
public fun foldIfExpressionWithAssignments(ifExpression: JetIfExpression) {
var thenAssignment = getFoldableBranchedAssignment(ifExpression.getThen()!!)!!
@@ -1,69 +0,0 @@
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.idea.intentions.branchedTransformations;
import com.intellij.openapi.editor.Editor;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.psi.JetFile;
import org.jetbrains.kotlin.psi.JetIfExpression;
import org.jetbrains.kotlin.psi.JetWhenExpression;
public enum FoldableKind implements Transformer {
IF_TO_ASSIGNMENT("fold.if.to.assignment") {
@Override
public void transform(@NotNull PsiElement element, @NotNull Editor editor, @NotNull JetFile file) {
BranchedFoldingUtils.INSTANCE$.foldIfExpressionWithAssignments((JetIfExpression) element);
}
},
IF_TO_RETURN("fold.if.to.return") {
@Override
public void transform(@NotNull PsiElement element, @NotNull Editor editor, @NotNull JetFile file) {
BranchedFoldingUtils.INSTANCE$.foldIfExpressionWithReturns((JetIfExpression) element);
}
},
IF_TO_RETURN_ASYMMETRICALLY("fold.if.to.return") {
@Override
public void transform(@NotNull PsiElement element, @NotNull Editor editor, @NotNull JetFile file) {
BranchedFoldingUtils.INSTANCE$.foldIfExpressionWithAsymmetricReturns((JetIfExpression) element);
}
},
WHEN_TO_ASSIGNMENT("fold.when.to.assignment") {
@Override
public void transform(@NotNull PsiElement element, @NotNull Editor editor, @NotNull JetFile file) {
BranchedFoldingUtils.INSTANCE$.foldWhenExpressionWithAssignments((JetWhenExpression) element);
}
},
WHEN_TO_RETURN("fold.when.to.return") {
@Override
public void transform(@NotNull PsiElement element, @NotNull Editor editor, @NotNull JetFile file) {
BranchedFoldingUtils.INSTANCE$.foldWhenExpressionWithReturns((JetWhenExpression) element);
}
};
private final String key;
private FoldableKind(String key) {
this.key = key;
}
@NotNull
@Override
public String getKey() {
return key;
}
}
@@ -19,35 +19,57 @@ package org.jetbrains.kotlin.idea.intentions.branchedTransformations.intentions
import com.intellij.openapi.editor.Editor
import org.jetbrains.kotlin.idea.intentions.JetSelfTargetingOffsetIndependentIntention
import org.jetbrains.kotlin.idea.intentions.branchedTransformations.BranchedFoldingUtils
import org.jetbrains.kotlin.idea.intentions.branchedTransformations.FoldableKind
import org.jetbrains.kotlin.psi.JetExpression
import org.jetbrains.kotlin.psi.JetFile
import org.jetbrains.kotlin.psi.JetIfExpression
import org.jetbrains.kotlin.psi.JetWhenExpression
public open class FoldBranchedExpressionIntention<T: JetExpression>(
val kind: FoldableKind, elementType: Class<T>
) : JetSelfTargetingOffsetIndependentIntention<T>(kind.getKey(), elementType) {
override fun isApplicableTo(element: T): Boolean = BranchedFoldingUtils.getFoldableExpressionKind(element) == kind
public class FoldIfToAssignmentIntention : JetSelfTargetingOffsetIndependentIntention<JetIfExpression>(javaClass(), "Replace 'if' expression with assignment") {
override fun isApplicableTo(element: JetIfExpression): Boolean {
return BranchedFoldingUtils.checkFoldableIfExpressionWithAssignments(element)
}
override fun applyTo(element: T, editor: Editor) {
val file = element.getContainingFile()
if (file is JetFile) {
kind.transform(element, editor, file)
}
override fun applyTo(element: JetIfExpression, editor: Editor) {
BranchedFoldingUtils.foldIfExpressionWithAssignments(element)
}
}
public class FoldIfToReturnAsymmetricallyIntention : JetSelfTargetingOffsetIndependentIntention<JetIfExpression>(javaClass(), "Replace 'if' expression with return") {
override fun isApplicableTo(element: JetIfExpression): Boolean {
return BranchedFoldingUtils.checkFoldableIfExpressionWithAsymmetricReturns(element)
}
public class FoldIfToAssignmentIntention : FoldBranchedExpressionIntention<JetIfExpression>(FoldableKind.IF_TO_ASSIGNMENT, javaClass())
override fun applyTo(element: JetIfExpression, editor: Editor) {
BranchedFoldingUtils.foldIfExpressionWithAsymmetricReturns(element)
}
}
public class FoldIfToReturnAsymmetricallyIntention : FoldBranchedExpressionIntention<JetIfExpression>(
FoldableKind.IF_TO_RETURN_ASYMMETRICALLY, javaClass()
)
public class FoldIfToReturnIntention : JetSelfTargetingOffsetIndependentIntention<JetIfExpression>(javaClass(), "Replace 'if' expression with return") {
override fun isApplicableTo(element: JetIfExpression): Boolean {
return BranchedFoldingUtils.checkFoldableIfExpressionWithReturns(element)
}
override fun applyTo(element: JetIfExpression, editor: Editor) {
BranchedFoldingUtils.foldIfExpressionWithReturns(element)
}
}
public class FoldIfToReturnIntention : FoldBranchedExpressionIntention<JetIfExpression>(FoldableKind.IF_TO_RETURN, javaClass())
public class FoldWhenToAssignmentIntention : JetSelfTargetingOffsetIndependentIntention<JetWhenExpression>(javaClass(), "Replace 'when' expression with assignment") {
override fun isApplicableTo(element: JetWhenExpression): Boolean {
return BranchedFoldingUtils.checkFoldableWhenExpressionWithAssignments(element)
}
override fun applyTo(element: JetWhenExpression, editor: Editor) {
BranchedFoldingUtils.foldWhenExpressionWithAssignments(element)
}
}
public class FoldWhenToAssignmentIntention : FoldBranchedExpressionIntention<JetWhenExpression>(
FoldableKind.WHEN_TO_ASSIGNMENT, javaClass()
)
public class FoldWhenToReturnIntention : FoldBranchedExpressionIntention<JetWhenExpression>(FoldableKind.WHEN_TO_RETURN, javaClass())
public class FoldWhenToReturnIntention : JetSelfTargetingOffsetIndependentIntention<JetWhenExpression>(javaClass(), "Replace 'when' expression with return") {
override fun isApplicableTo(element: JetWhenExpression): Boolean {
return BranchedFoldingUtils.checkFoldableWhenExpressionWithReturns(element)
}
override fun applyTo(element: JetWhenExpression, editor: Editor) {
BranchedFoldingUtils.foldWhenExpressionWithReturns(element)
}
}