| /* |
| * 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.inspections.quickfix; |
| |
| import com.intellij.codeInspection.LocalQuickFix; |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiComment; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiWhiteSpace; |
| import com.intellij.psi.impl.source.tree.LeafPsiElement; |
| import com.jetbrains.python.PyBundle; |
| import com.jetbrains.python.PyNames; |
| import com.jetbrains.python.PyTokenTypes; |
| import com.jetbrains.python.psi.*; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * User: catherine |
| * |
| * QuickFix to replace statement that has no effect with function call |
| */ |
| public class StatementEffectFunctionCallQuickFix implements LocalQuickFix { |
| @NotNull |
| public String getName() { |
| return PyBundle.message("QFIX.statement.effect"); |
| } |
| |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) { |
| PsiElement expression = descriptor.getPsiElement(); |
| if (expression != null && expression.isWritable() && expression instanceof PyReferenceExpression) { |
| final String expressionText = expression.getText(); |
| if (PyNames.PRINT.equals(expressionText)) |
| replacePrint(expression); |
| else if (PyNames.EXEC.equals(expressionText)) |
| replaceExec(expression); |
| else |
| expression.replace(PyElementGenerator.getInstance(project).createCallExpression(LanguageLevel.forElement(expression), |
| expressionText)); |
| } |
| } |
| |
| private static void replaceExec(@NotNull final PsiElement expression) { |
| final PyElementGenerator elementGenerator = PyElementGenerator.getInstance(expression.getProject()); |
| final String expressionText = expression.getText(); |
| final StringBuilder stringBuilder = new StringBuilder(expressionText + " ("); |
| |
| final PsiElement whiteSpace = expression.getContainingFile().findElementAt(expression.getTextOffset() + expression.getTextLength()); |
| PsiElement next = null; |
| if (whiteSpace instanceof PsiWhiteSpace) { |
| final String whiteSpaceText = whiteSpace.getText(); |
| if (!whiteSpaceText.contains("\n")) { |
| next = whiteSpace.getNextSibling(); |
| while (next instanceof PsiWhiteSpace && whiteSpaceText.contains("\\")) { |
| next = next.getNextSibling(); |
| } |
| } |
| } |
| else |
| next = whiteSpace; |
| |
| RemoveUnnecessaryBackslashQuickFix.removeBackSlash(next); |
| if (whiteSpace != null) whiteSpace.delete(); |
| if (next == null) { |
| stringBuilder.append(")"); |
| expression.replace(elementGenerator.createFromText(LanguageLevel.forElement(expression), PyExpression.class, |
| stringBuilder.toString())); |
| return; |
| } |
| if (next instanceof PyExpressionStatement) { |
| final PyExpression expr = ((PyExpressionStatement)next).getExpression(); |
| if (expr instanceof PyBinaryExpression) { |
| final PsiElement operator = ((PyBinaryExpression)expr).getPsiOperator(); |
| if (operator instanceof LeafPsiElement && ((LeafPsiElement)operator).getElementType() == PyTokenTypes.IN_KEYWORD) { |
| addInArguments(stringBuilder, (PyBinaryExpression)expr); |
| } |
| else { |
| stringBuilder.append(next.getText()); |
| } |
| } |
| else if (expr instanceof PyTupleExpression) { |
| final PyExpression[] elements = ((PyTupleExpression)expr).getElements(); |
| if (elements.length > 1) { |
| if (elements[0] instanceof PyBinaryExpression) { |
| addInArguments(stringBuilder, (PyBinaryExpression)elements[0]); |
| } |
| stringBuilder.append(", "); |
| stringBuilder.append(elements[1].getText()); |
| } |
| } |
| else { |
| stringBuilder.append(next.getText()); |
| } |
| } |
| else { |
| stringBuilder.append(next.getText()); |
| } |
| next.delete(); |
| stringBuilder.append(")"); |
| expression.replace(elementGenerator.createFromText(LanguageLevel.forElement(expression), PyExpression.class, |
| stringBuilder.toString())); |
| } |
| |
| private static void addInArguments(@NotNull final StringBuilder stringBuilder, @NotNull final PyBinaryExpression binaryExpression) { |
| stringBuilder.append(binaryExpression.getLeftExpression().getText()); |
| stringBuilder.append(", "); |
| final PyExpression rightExpression = binaryExpression.getRightExpression(); |
| if (rightExpression != null) |
| stringBuilder.append(rightExpression.getText()); |
| } |
| |
| private static void replacePrint(@NotNull final PsiElement expression) { |
| final PyElementGenerator elementGenerator = PyElementGenerator.getInstance(expression.getProject()); |
| final String expressionText = expression.getText(); |
| final StringBuilder stringBuilder = new StringBuilder(expressionText + " ("); |
| |
| final PsiElement whiteSpace = expression.getContainingFile().findElementAt(expression.getTextOffset() + expression.getTextLength()); |
| PsiElement next = null; |
| if (whiteSpace instanceof PsiWhiteSpace) { |
| final String whiteSpaceText = whiteSpace.getText(); |
| if (!whiteSpaceText.contains("\n")) { |
| next = whiteSpace.getNextSibling(); |
| while (next instanceof PsiWhiteSpace && whiteSpaceText.contains("\\")) { |
| next = next.getNextSibling(); |
| } |
| } |
| } |
| else |
| next = whiteSpace; |
| |
| RemoveUnnecessaryBackslashQuickFix.removeBackSlash(next); |
| if (whiteSpace != null) whiteSpace.delete(); |
| String commentText = null; |
| if (next != null) { |
| final PsiElement lastChild = next.getLastChild(); |
| if (lastChild instanceof PsiComment) { |
| commentText = lastChild.getText(); |
| } |
| final String text = next instanceof PyExpressionStatement ? ((PyExpressionStatement)next).getExpression().getText() : next.getText(); |
| |
| stringBuilder.append(text); |
| if (text.endsWith(",")) stringBuilder.append(" end=' '"); |
| next.delete(); |
| } |
| stringBuilder.append(")"); |
| if (commentText != null) { |
| stringBuilder.append(commentText); |
| } |
| expression.replace(elementGenerator.createFromText(LanguageLevel.forElement(expression), PyExpression.class, |
| stringBuilder.toString())); |
| } |
| } |