| /* |
| * Copyright 2000-2013 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.psi.util; |
| |
| import com.intellij.psi.*; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Arrays; |
| |
| public abstract class MethodSignatureBase implements MethodSignature { |
| |
| private final PsiSubstitutor mySubstitutor; |
| private final PsiType[] myParameterTypes; |
| private volatile PsiType[] myErasedParameterTypes; |
| protected final PsiTypeParameter[] myTypeParameters; |
| |
| protected MethodSignatureBase(@NotNull PsiSubstitutor substitutor, @NotNull PsiType[] parameterTypes, @NotNull PsiTypeParameter[] typeParameters) { |
| mySubstitutor = substitutor; |
| assert substitutor.isValid(); |
| myParameterTypes = PsiType.createArray(parameterTypes.length); |
| for (int i = 0; i < parameterTypes.length; i++) { |
| PsiType type = parameterTypes[i]; |
| if (type != null) { |
| PsiUtil.ensureValidType(type); |
| } |
| if (type instanceof PsiEllipsisType) type = ((PsiEllipsisType) type).toArrayType(); |
| myParameterTypes[i] = substitutor.substitute(type); |
| } |
| myTypeParameters = typeParameters; |
| } |
| |
| protected MethodSignatureBase(@NotNull PsiSubstitutor substitutor, |
| @Nullable PsiParameterList parameterList, |
| @Nullable PsiTypeParameterList typeParameterList) { |
| mySubstitutor = substitutor; |
| if (parameterList == null) { |
| myParameterTypes = PsiType.EMPTY_ARRAY; |
| } |
| else { |
| final PsiParameter[] parameters = parameterList.getParameters(); |
| myParameterTypes = PsiType.createArray(parameters.length); |
| for (int i = 0; i < parameters.length; i++) { |
| PsiType type = parameters[i].getType(); |
| if (type instanceof PsiEllipsisType) type = ((PsiEllipsisType)type).toArrayType(); |
| myParameterTypes[i] = substitutor.substitute(type); |
| } |
| } |
| |
| myTypeParameters = typeParameterList == null ? PsiTypeParameter.EMPTY_ARRAY : typeParameterList.getTypeParameters(); |
| } |
| |
| @Override |
| @NotNull |
| public PsiType[] getParameterTypes() { |
| return myParameterTypes; |
| } |
| |
| @Override |
| @NotNull |
| public PsiTypeParameter[] getTypeParameters() { |
| return myTypeParameters; |
| } |
| |
| @NotNull |
| public PsiType[] getErasedParameterTypes() { |
| PsiType[] result = myErasedParameterTypes; |
| if (result == null) { |
| myErasedParameterTypes = result = MethodSignatureUtil.calcErasedParameterTypes(this); |
| } |
| return result; |
| } |
| |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (!(o instanceof MethodSignature)) return false; |
| |
| final MethodSignature methodSignature = (MethodSignature)o; |
| return MethodSignatureUtil.areSignaturesEqual(methodSignature, this); |
| } |
| |
| public int hashCode() { |
| int result = getName().hashCode(); |
| final PsiType[] parameterTypes = getErasedParameterTypes(); |
| result = 31 * result + parameterTypes.length; |
| for (int i = 0, length = Math.min(3, parameterTypes.length); i < length; i++) { |
| PsiType type = parameterTypes[i]; |
| if (type == null) continue; |
| result = 31 * result + type.hashCode(); |
| } |
| return result; |
| } |
| |
| @SuppressWarnings({"HardCodedStringLiteral"}) |
| public String toString() { |
| String s = getClass().getSimpleName() + ": "; |
| final PsiTypeParameter[] typeParameters = getTypeParameters(); |
| if (typeParameters.length != 0) { |
| String sep = "<"; |
| for (PsiTypeParameter typeParameter : typeParameters) { |
| s += sep + typeParameter.getName(); |
| sep = ", "; |
| } |
| s += ">"; |
| } |
| s += getName() + "(" + Arrays.asList(getParameterTypes()) + ")"; |
| return s; |
| } |
| |
| @Override |
| @NotNull |
| public PsiSubstitutor getSubstitutor() { |
| return mySubstitutor; |
| } |
| |
| } |