| /* |
| * 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.codeInsight; |
| |
| import com.intellij.codeInsight.navigation.actions.GotoDeclarationHandlerBase; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiWhiteSpace; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.jetbrains.python.PyTokenTypes; |
| import com.jetbrains.python.PythonLanguage; |
| import com.jetbrains.python.psi.*; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Provides reaction on ctrl+click for {@code break} and {@code continue} statements. |
| * @author dcheryasov |
| */ |
| public class PyBreakContinueGotoProvider extends GotoDeclarationHandlerBase { |
| @Override |
| public PsiElement getGotoDeclarationTarget(@Nullable PsiElement source, Editor editor) { |
| if (source != null && source.getLanguage() instanceof PythonLanguage) { |
| final PyLoopStatement loop = PsiTreeUtil.getParentOfType(source, PyLoopStatement.class, false, PyFunction.class, PyClass.class); |
| if (loop != null) { |
| ASTNode node = source.getNode(); |
| if (node != null) { |
| IElementType node_type = node.getElementType(); |
| if (node_type == PyTokenTypes.CONTINUE_KEYWORD) { |
| return loop; |
| } |
| if (node_type == PyTokenTypes.BREAK_KEYWORD) { |
| PsiElement outer_element = loop; |
| PsiElement after_cycle; |
| while (true) { |
| after_cycle = outer_element.getNextSibling(); |
| if (after_cycle != null) { |
| if (after_cycle instanceof PsiWhiteSpace) { |
| after_cycle = after_cycle.getNextSibling(); |
| } |
| if (after_cycle instanceof PyStatement) return after_cycle; |
| } |
| outer_element = outer_element.getParent(); |
| if (PyUtil.instanceOf(outer_element, PsiFile.class, PyFunction.class, PyClass.class)) { |
| break; |
| } |
| } |
| // cycle is the last statement in the flow of execution. its last element is our best bet. |
| return PsiTreeUtil.getDeepestLast(loop); |
| } |
| } |
| } |
| } |
| |
| return null; |
| } |
| } |