| /* |
| * Copyright 2000-2009 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 com.intellij.patterns; |
| |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.psi.*; |
| import com.intellij.psi.search.searches.SuperMethodsSearch; |
| import com.intellij.psi.util.MethodSignatureBackedByPsiMethod; |
| import com.intellij.psi.util.TypeConversionUtil; |
| import com.intellij.util.ArrayUtil; |
| import com.intellij.util.PairProcessor; |
| import com.intellij.util.ProcessingContext; |
| import com.intellij.util.Processor; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author peter |
| */ |
| public class PsiMethodPattern extends PsiMemberPattern<PsiMethod,PsiMethodPattern> { |
| public PsiMethodPattern() { |
| super(PsiMethod.class); |
| } |
| |
| public PsiMethodPattern withParameterCount(@NonNls final int paramCount) { |
| return with(new PatternCondition<PsiMethod>("withParameterCount") { |
| @Override |
| public boolean accepts(@NotNull final PsiMethod method, final ProcessingContext context) { |
| return method.getParameterList().getParametersCount() == paramCount; |
| } |
| }); |
| } |
| |
| /** |
| * Selects the corrected method by argument types |
| * @param inputTypes the array of FQN of the parameter types or wildcards. |
| * The special values are:<bl><li>"?" - means any type</li><li>".." - instructs pattern to accept the rest of the arguments</li></bl> |
| * @return |
| */ |
| public PsiMethodPattern withParameters(@NonNls final String... inputTypes) { |
| final String[] types = inputTypes.length == 0 ? ArrayUtil.EMPTY_STRING_ARRAY : inputTypes; |
| return with(new PatternCondition<PsiMethod>("withParameters") { |
| @Override |
| public boolean accepts(@NotNull final PsiMethod psiMethod, final ProcessingContext context) { |
| final PsiParameterList parameterList = psiMethod.getParameterList(); |
| int dotsIndex = -1; |
| while (++dotsIndex <types.length) { |
| if (Comparing.equal("..", types[dotsIndex])) break; |
| } |
| |
| if (dotsIndex == types.length && parameterList.getParametersCount() != dotsIndex |
| || dotsIndex < types.length && parameterList.getParametersCount() < dotsIndex) { |
| return false; |
| } |
| if (dotsIndex > 0) { |
| final PsiParameter[] psiParameters = parameterList.getParameters(); |
| for (int i = 0; i < dotsIndex; i++) { |
| if (!Comparing.equal("?", types[i]) && !typeEquivalent(psiParameters[i].getType(), types[i])) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| private boolean typeEquivalent(PsiType type, String expectedText) { |
| final PsiType erasure = TypeConversionUtil.erasure(type); |
| final String text; |
| if (erasure instanceof PsiEllipsisType && expectedText.endsWith("[]")) { |
| text = ((PsiEllipsisType)erasure).getComponentType().getCanonicalText() + "[]"; |
| } |
| else if (erasure instanceof PsiArrayType && expectedText.endsWith("...")) { |
| text = ((PsiArrayType)erasure).getComponentType().getCanonicalText() +"..."; |
| } |
| else { |
| text = erasure.getCanonicalText(); |
| } |
| return expectedText.equals(text); |
| } |
| }); |
| } |
| |
| public PsiMethodPattern definedInClass(@NonNls final String qname) { |
| return definedInClass(PsiJavaPatterns.psiClass().withQualifiedName(qname)); |
| } |
| |
| public PsiMethodPattern definedInClass(final ElementPattern<? extends PsiClass> pattern) { |
| return with(new PatternConditionPlus<PsiMethod, PsiClass>("definedInClass", pattern) { |
| |
| @Override |
| public boolean processValues(PsiMethod t, final ProcessingContext context, final PairProcessor<PsiClass, ProcessingContext> processor) { |
| if (!processor.process(t.getContainingClass(), context)) return false; |
| final Ref<Boolean> result = Ref.create(Boolean.TRUE); |
| SuperMethodsSearch.search(t, null, true, false).forEach(new Processor<MethodSignatureBackedByPsiMethod>() { |
| @Override |
| public boolean process(final MethodSignatureBackedByPsiMethod signature) { |
| if (!processor.process(signature.getMethod().getContainingClass(), context)) { |
| result.set(Boolean.FALSE); |
| return false; |
| } |
| return true; |
| } |
| }); |
| return result.get(); |
| } |
| }); |
| } |
| |
| public PsiMethodPattern constructor(final boolean isConstructor) { |
| return with(new PatternCondition<PsiMethod>("constructor") { |
| @Override |
| public boolean accepts(@NotNull final PsiMethod method, final ProcessingContext context) { |
| return method.isConstructor() == isConstructor; |
| } |
| }); |
| } |
| |
| |
| public PsiMethodPattern withThrowsList(final ElementPattern<?> pattern) { |
| return with(new PatternCondition<PsiMethod>("withThrowsList") { |
| @Override |
| public boolean accepts(@NotNull final PsiMethod method, final ProcessingContext context) { |
| return pattern.accepts(method.getThrowsList()); |
| } |
| }); |
| } |
| } |