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/*
* Copyright 2003-2012 Dave Griffith, Bas Leijdekkers
*
* 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 com.siyeh.ipp.psiutils;
import com.intellij.psi.*;
import org.jetbrains.annotations.NonNls;
public class ConditionalUtils {
private ConditionalUtils() {}
public static PsiStatement stripBraces(PsiStatement branch) {
if (branch instanceof PsiBlockStatement) {
final PsiBlockStatement block = (PsiBlockStatement)branch;
final PsiCodeBlock codeBlock = block.getCodeBlock();
final PsiStatement[] statements = codeBlock.getStatements();
if (statements.length == 1) {
return statements[0];
}
else {
return block;
}
}
else {
return branch;
}
}
public static boolean isReturn(PsiStatement statement,
@NonNls String value) {
if (statement == null) {
return false;
}
if (!(statement instanceof PsiReturnStatement)) {
return false;
}
final PsiReturnStatement returnStatement =
(PsiReturnStatement)statement;
if (returnStatement.getReturnValue() == null) {
return false;
}
final PsiExpression returnValue = returnStatement.getReturnValue();
if (returnValue == null) {
return false;
}
final String returnValueText = returnValue.getText();
return value.equals(returnValueText);
}
public static boolean isAssignment(PsiStatement statement,
@NonNls String value) {
if (statement == null) {
return false;
}
if (!(statement instanceof PsiExpressionStatement)) {
return false;
}
final PsiExpressionStatement expressionStatement =
(PsiExpressionStatement)statement;
final PsiExpression expression = expressionStatement.getExpression();
if (!(expression instanceof PsiAssignmentExpression)) {
return false;
}
final PsiAssignmentExpression assignment =
(PsiAssignmentExpression)expression;
final PsiExpression rhs = assignment.getRExpression();
if (rhs == null) {
return false;
}
final String rhsText = rhs.getText();
return value.equals(rhsText);
}
}
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