/*
* 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.codeInsight.unwrap;
import com.intellij.psi.PsiElement;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.psi.*;
public class KotlinUnwrappers {
private KotlinUnwrappers() {
}
public static class KotlinExpressionRemover extends KotlinRemover {
public KotlinExpressionRemover(String key) {
super(key);
}
@Override
public boolean isApplicableTo(PsiElement e) {
return e instanceof KtExpression && e.getParent() instanceof KtBlockExpression;
}
}
public static class KotlinElseUnwrapper extends KotlinComponentUnwrapper {
public KotlinElseUnwrapper(String key) {
super(key);
}
@Override
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtIfExpression ? ((KtIfExpression) target).getElse() : null;
}
}
public static class KotlinThenUnwrapper extends KotlinComponentUnwrapper {
public KotlinThenUnwrapper(String key) {
super(key);
}
@Override
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtIfExpression ? ((KtIfExpression) target).getThen() : null;
}
}
public static class KotlinElseRemover extends KotlinUnwrapRemoveBase {
public KotlinElseRemover(String key) {
super(key);
}
@Override
public boolean isApplicableTo(PsiElement e) {
return e instanceof KtIfExpression
&& ((KtIfExpression) e).getCondition() != null
&& ((KtIfExpression) e).getThen() != null
&& ((KtIfExpression) e).getElse() != null;
}
@Override
protected void doUnwrap(PsiElement element, Context context) throws IncorrectOperationException {
KtIfExpression ifExpr = (KtIfExpression) element;
context.replace(ifExpr, KtPsiFactoryKt.KtPsiFactory(ifExpr).createIf(ifExpr.getCondition(), ifExpr.getThen(), null));
}
}
public static class KotlinLoopUnwrapper extends KotlinComponentUnwrapper {
public KotlinLoopUnwrapper(String key) {
super(key);
}
@Override
@Nullable
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtLoopExpression ? ((KtLoopExpression) target).getBody() : null;
}
}
public static class KotlinTryUnwrapper extends KotlinComponentUnwrapper {
public KotlinTryUnwrapper(String key) {
super(key);
}
@Override
@Nullable
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtTryExpression ? ((KtTryExpression) target).getTryBlock() : null;
}
}
public static class KotlinCatchUnwrapper extends KotlinComponentUnwrapper {
public KotlinCatchUnwrapper(String key) {
super(key);
}
@NotNull
@Override
protected KtElement getEnclosingElement(@NotNull KtElement element) {
return (KtElement)element.getParent();
}
@Override
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtCatchClause ? ((KtCatchClause) target).getCatchBody() : null;
}
}
public static class KotlinCatchRemover extends KotlinRemover {
public KotlinCatchRemover(String key) {
super(key);
}
@Override
public boolean isApplicableTo(PsiElement e) {
return e instanceof KtCatchClause;
}
}
public static class KotlinFinallyUnwrapper extends KotlinComponentUnwrapper {
public KotlinFinallyUnwrapper(String key) {
super(key);
}
@Override
public boolean isApplicableTo(PsiElement e) {
return super.isApplicableTo(e) && getEnclosingElement((KtElement)e).getParent() instanceof KtBlockExpression;
}
@NotNull
@Override
protected KtElement getEnclosingElement(@NotNull KtElement element) {
return (KtElement)element.getParent();
}
@Override
protected KtExpression getExpressionToUnwrap(@NotNull KtElement target) {
return target instanceof KtFinallySection ? ((KtFinallySection) target).getFinalExpression() : null;
}
}
public static class KotlinFinallyRemover extends KotlinRemover {
public KotlinFinallyRemover(String key) {
super(key);
}
@Override
public boolean isApplicableTo(PsiElement e) {
return e instanceof KtFinallySection;
}
}
}