| /* |
| * 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.jetbrains.python.psi; |
| |
| import com.intellij.psi.PsiPolyVariantReference; |
| import com.jetbrains.python.psi.resolve.PyResolveContext; |
| import com.jetbrains.python.psi.resolve.QualifiedResolveResult; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author yole |
| */ |
| public interface PyReferenceExpression extends PyQualifiedExpression, PyReferenceOwner { |
| PyReferenceExpression[] EMPTY_ARRAY = new PyReferenceExpression[0]; |
| |
| /** |
| * Goes through a chain of assignment statements until a non-assignment expression is encountered. |
| * Starts at this, expecting it to resolve to a target of an assignment. |
| * <i>Note: currently limited to non-branching definite assignments.</i> |
| * @return value that is assigned to this element via a chain of definite assignments, or an empty resolve result. |
| * <i>Note: will return null if the assignment chain ends in a target of a non-assignment statement such as 'for'.</i> |
| * |
| * @param resolveContext the resolve context |
| */ |
| @NotNull |
| QualifiedResolveResult followAssignmentsChain(PyResolveContext resolveContext); |
| |
| @NotNull |
| PsiPolyVariantReference getReference(); |
| } |