| /* |
| * 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; |
| |
| import com.intellij.codeInspection.InspectionProfile; |
| import com.intellij.codeInspection.InspectionProfileEntry; |
| import com.intellij.codeInspection.LocalInspectionToolSession; |
| import com.intellij.codeInspection.ProblemsHolder; |
| import com.intellij.codeInspection.ex.InspectionToolWrapper; |
| import com.intellij.openapi.util.JDOMExternalizableStringList; |
| import com.intellij.profile.codeInspection.InspectionProjectProfileManager; |
| import com.intellij.psi.PsiElementVisitor; |
| import com.jetbrains.python.PyBundle; |
| import com.jetbrains.python.PyNames; |
| import com.jetbrains.python.inspections.quickfix.ReplaceFunctionWithSetLiteralQuickFix; |
| import com.jetbrains.python.psi.*; |
| import com.jetbrains.python.psi.impl.PyBuiltinCache; |
| import org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * User: catherine |
| * |
| * Inspection to find set built-in function and replace it with set literal |
| * available if the selected language level supports set literals. |
| */ |
| public class PySetFunctionToLiteralInspection extends PyInspection { |
| |
| @Nls |
| @NotNull |
| @Override |
| public String getDisplayName() { |
| return PyBundle.message("INSP.NAME.set.function.to.literal"); |
| } |
| |
| @NotNull |
| @Override |
| public PsiElementVisitor buildVisitor(@NotNull ProblemsHolder holder, |
| boolean isOnTheFly, |
| @NotNull LocalInspectionToolSession session) { |
| return new Visitor(holder, session); |
| } |
| |
| private static class Visitor extends PyInspectionVisitor { |
| public Visitor(@Nullable ProblemsHolder holder, @NotNull LocalInspectionToolSession session) { |
| super(holder, session); |
| } |
| |
| @Override |
| public void visitPyCallExpression(final PyCallExpression node) { |
| if (!isAvailable(node)) return; |
| PyExpression callee = node.getCallee(); |
| if (node.isCalleeText(PyNames.SET) && callee != null && PyBuiltinCache.isInBuiltins(callee)) { |
| PyExpression[] arguments = node.getArguments(); |
| if (arguments.length == 1) { |
| PyElement[] elements = getSetCallArguments(node); |
| if (elements.length != 0) |
| registerProblem(node, PyBundle.message("INSP.NAME.set.function.to.literal"), |
| new ReplaceFunctionWithSetLiteralQuickFix()); |
| } |
| } |
| } |
| |
| private static boolean isAvailable(PyCallExpression node) { |
| final InspectionProfile profile = InspectionProjectProfileManager.getInstance(node.getProject()).getInspectionProfile(); |
| final InspectionToolWrapper inspectionTool = profile.getInspectionTool("PyCompatibilityInspection", node.getProject()); |
| if (inspectionTool != null) { |
| final InspectionProfileEntry inspection = inspectionTool.getTool(); |
| if (inspection instanceof PyCompatibilityInspection) { |
| final JDOMExternalizableStringList versions = ((PyCompatibilityInspection)inspection).ourVersions; |
| for (String s : versions) { |
| if (!LanguageLevel.fromPythonVersion(s).supportsSetLiterals()) return false; |
| } |
| } |
| } |
| return LanguageLevel.forElement(node).supportsSetLiterals(); |
| } |
| } |
| |
| public static PyElement[] getSetCallArguments(PyCallExpression node) { |
| PyExpression argument = node.getArguments()[0]; |
| if (argument instanceof PyStringLiteralExpression) { |
| return PyElement.EMPTY_ARRAY; |
| } |
| if ((argument instanceof PySequenceExpression || (argument instanceof PyParenthesizedExpression && |
| ((PyParenthesizedExpression)argument).getContainedExpression() instanceof PyTupleExpression))) { |
| |
| if (argument instanceof PySequenceExpression) |
| return ((PySequenceExpression)argument).getElements(); |
| PyExpression tuple = ((PyParenthesizedExpression)argument).getContainedExpression(); |
| if (tuple instanceof PyTupleExpression) |
| return ((PyTupleExpression)(tuple)).getElements(); |
| } |
| return PyElement.EMPTY_ARRAY; |
| } |
| } |