| /* |
| * Copyright 2007-2008 Dave Griffith |
| * |
| * 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.plugins.groovy.codeInspection.gpath; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.CommonClassNames; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiType; |
| import com.intellij.psi.util.InheritanceUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.codeInspection.BaseInspection; |
| import org.jetbrains.plugins.groovy.codeInspection.BaseInspectionVisitor; |
| import org.jetbrains.plugins.groovy.codeInspection.GroovyFix; |
| import org.jetbrains.plugins.groovy.lang.lexer.GroovyTokenTypes; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.arguments.GrArgumentList; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.path.GrMethodCallExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.impl.PsiImplUtil; |
| import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil; |
| |
| public class GroovyListGetCanBeKeyedAccessInspection extends BaseInspection { |
| |
| @Override |
| @Nls |
| @NotNull |
| public String getGroupDisplayName() { |
| return GPATH; |
| } |
| |
| @Override |
| @Nls |
| @NotNull |
| public String getDisplayName() { |
| return "Call to List.get can be keyed access"; |
| } |
| |
| @Override |
| @Nullable |
| protected String buildErrorString(Object... args) { |
| return "Call to '#ref' can be keyed access #loc"; |
| } |
| |
| @NotNull |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new Visitor(); |
| } |
| |
| @Override |
| public GroovyFix buildFix(@NotNull PsiElement location) { |
| return new ReplaceWithPropertyAccessFix(); |
| } |
| |
| private static class ReplaceWithPropertyAccessFix extends GroovyFix { |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return "Replace with keyed access"; |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) |
| throws IncorrectOperationException { |
| final PsiElement referenceName = descriptor.getPsiElement(); |
| final GrReferenceExpression invokedExpression = (GrReferenceExpression) referenceName.getParent(); |
| final GrMethodCallExpression callExpression = (GrMethodCallExpression) invokedExpression.getParent(); |
| final GrArgumentList args = callExpression.getArgumentList(); |
| assert args != null; |
| final GrExpression arg = args.getExpressionArguments()[0]; |
| replaceExpression(callExpression, invokedExpression.getQualifierExpression().getText() + '[' + arg.getText() + ']'); |
| } |
| } |
| |
| private static class Visitor extends BaseInspectionVisitor { |
| @Override |
| public void visitMethodCallExpression(GrMethodCallExpression grMethodCallExpression) { |
| super.visitMethodCallExpression(grMethodCallExpression); |
| final GrArgumentList args = grMethodCallExpression.getArgumentList(); |
| if (args == null) { |
| return; |
| } |
| if (args.getExpressionArguments().length != 1) { |
| return; |
| } |
| if (PsiImplUtil.hasNamedArguments(args)) { |
| return; |
| } |
| final GrExpression methodExpression = grMethodCallExpression.getInvokedExpression(); |
| if (!(methodExpression instanceof GrReferenceExpression)) { |
| return; |
| } |
| final GrReferenceExpression referenceExpression = (GrReferenceExpression) methodExpression; |
| final String name = referenceExpression.getReferenceName(); |
| if (!"get".equals(name)) { |
| return; |
| } |
| final GrExpression qualifier = referenceExpression.getQualifierExpression(); |
| |
| if (qualifier == null || PsiUtil.isThisOrSuperRef(qualifier)) { |
| return; |
| } |
| if (referenceExpression.getDotTokenType() == GroovyTokenTypes.mOPTIONAL_DOT) return; |
| final PsiType type = qualifier.getType(); |
| if (!InheritanceUtil.isInheritor(type, CommonClassNames.JAVA_UTIL_LIST)) { |
| return; |
| } |
| registerMethodCallError(grMethodCallExpression); |
| } |
| } |
| } |