| /* |
| * Copyright 2000-2012 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; |
| |
| import com.intellij.util.ArrayFactory; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Represents the parameter of a Java method, foreach (enhanced for) statement or catch block. |
| */ |
| public interface PsiParameter extends PsiVariable { |
| /** |
| * The empty array of PSI parameters which can be reused to avoid unnecessary allocations. |
| */ |
| PsiParameter[] EMPTY_ARRAY = new PsiParameter[0]; |
| |
| ArrayFactory<PsiParameter> ARRAY_FACTORY = new ArrayFactory<PsiParameter>() { |
| @NotNull |
| @Override |
| public PsiParameter[] create(final int count) { |
| return count == 0 ? EMPTY_ARRAY : new PsiParameter[count]; |
| } |
| }; |
| |
| /** |
| * Returns the element (method, lambda expression, foreach statement or catch block) in which the |
| * parameter is declared. |
| * |
| * @return the declaration scope for the parameter. |
| */ |
| @NotNull |
| PsiElement getDeclarationScope(); |
| |
| /** |
| * Checks if the parameter accepts a variable number of arguments. |
| * |
| * @return true if the parameter is a vararg, false otherwise |
| */ |
| boolean isVarArgs(); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| @Nullable |
| PsiTypeElement getTypeElement(); |
| } |