| /* |
| * 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.intentions; |
| |
| import com.intellij.codeInsight.intention.impl.BaseIntentionAction; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import com.jetbrains.python.PyBundle; |
| import com.jetbrains.python.psi.*; |
| import com.jetbrains.python.psi.types.PyType; |
| import com.jetbrains.python.psi.types.TypeEvalContext; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * User: catherine |
| * Intention to convert dict constructor to dict literal expression with only explicit keyword arguments |
| * For instance, |
| * dict() -> {} |
| * dict(a=3, b=5) -> {'a': 3, 'b': 5} |
| * dict(foo) -> no transformation |
| * dict(**foo) -> no transformation |
| */ |
| public class PyDictConstructorToLiteralFormIntention extends BaseIntentionAction { |
| @NotNull |
| public String getFamilyName() { |
| return PyBundle.message("INTN.convert.dict.constructor.to.dict.literal"); |
| } |
| |
| @NotNull |
| public String getText() { |
| return PyBundle.message("INTN.convert.dict.constructor.to.dict.literal"); |
| } |
| |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| if (!(file instanceof PyFile)) { |
| return false; |
| } |
| |
| PyCallExpression expression = |
| PsiTreeUtil.getParentOfType(file.findElementAt(editor.getCaretModel().getOffset()), PyCallExpression.class); |
| |
| if (expression != null && expression.isCalleeText("dict")) { |
| final TypeEvalContext context = TypeEvalContext.codeAnalysis(file); |
| PyType type = context.getType(expression); |
| if (type != null && type.isBuiltin()) { |
| PyExpression[] argumentList = expression.getArguments(); |
| for (PyExpression argument : argumentList) { |
| if (!(argument instanceof PyKeywordArgument)) return false; |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException { |
| PyCallExpression expression = |
| PsiTreeUtil.getParentOfType(file.findElementAt(editor.getCaretModel().getOffset()), PyCallExpression.class); |
| PyElementGenerator elementGenerator = PyElementGenerator.getInstance(project); |
| if (expression != null) { |
| replaceDictConstructor(expression, elementGenerator); |
| } |
| } |
| |
| private static void replaceDictConstructor(PyCallExpression expression, PyElementGenerator elementGenerator) { |
| PyExpression[] argumentList = expression.getArguments(); |
| StringBuilder stringBuilder = new StringBuilder(); |
| |
| int size = argumentList.length; |
| |
| for (int i = 0; i != size; ++i) { |
| PyExpression argument = argumentList[i]; |
| if (argument instanceof PyKeywordArgument) { |
| stringBuilder.append("'"); |
| stringBuilder.append(((PyKeywordArgument)argument).getKeyword()); |
| stringBuilder.append("' : "); |
| stringBuilder.append(((PyKeywordArgument)argument).getValueExpression().getText()); |
| if (i != size-1) |
| stringBuilder.append(","); |
| } |
| |
| } |
| PyDictLiteralExpression dict = (PyDictLiteralExpression)elementGenerator.createFromText(LanguageLevel.forElement(expression), PyExpressionStatement.class, |
| "{" + stringBuilder.toString() + "}").getExpression(); |
| expression.replace(dict); |
| } |
| } |