| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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.google.idea.blaze.base.lang.buildfile.validation; |
| |
| import com.google.idea.blaze.base.lang.buildfile.psi.*; |
| import com.google.idea.blaze.base.lang.buildfile.references.LabelReference; |
| import com.intellij.psi.PsiElement; |
| |
| /** |
| * Additional error annotations, post parsing.<p> |
| * This has been turned off because it's unusable. BuildFile is re-parsed *every* time it's touched, and is never |
| * cached. Until this is fixed, we can't run any annotators touching the file.<p> |
| * |
| * One option: try moving all expensive checks to 'visitFile', so they're not run in parallel |
| */ |
| public class ErrorAnnotator extends BuildAnnotator { |
| |
| @Override |
| public void visitLoadStatement(LoadStatement node) { |
| StringLiteral[] strings = node.getChildStrings(); |
| if (strings.length == 0) { |
| return; |
| } |
| PsiElement skylarkRef = new LabelReference(strings[0], false).resolve(); |
| if (skylarkRef == null) { |
| markError(strings[0], "Cannot find this Skylark module"); |
| return; |
| } |
| if (!(skylarkRef instanceof BuildFile)) { |
| markError(strings[0], strings[0].getText() + " is not a Skylark module"); |
| return; |
| } |
| if (strings.length == 1) { |
| markError(node, "No definitions imported from Skylark module"); |
| return; |
| } |
| BuildFile skylarkModule = (BuildFile) skylarkRef; |
| for (int i = 1; i < strings.length; i++) { |
| String text = strings[i].getStringContents(); |
| FunctionStatement fn = skylarkModule.findDeclaredFunction(text); |
| if (fn == null) { |
| markError(strings[i], "Function '" + text + "' not found in Skylark module " + skylarkModule.getFileName()); |
| } |
| } |
| } |
| |
| @Override |
| public void visitFuncallExpression(FuncallExpression node) { |
| FunctionStatement function = (FunctionStatement) node.getReferencedElement(); |
| if (function == null) { |
| // likely a built-in rule. We don't yet recognize these. |
| return; |
| } |
| // check keyword args match function parameters |
| ParameterList params = function.getParameterList(); |
| if (params == null || params.hasStarStar()) { |
| return; |
| } |
| for (Argument arg : node.getArguments()) { |
| if (arg instanceof Argument.Keyword) { |
| String name = arg.getName(); |
| if (name != null && params.findParameterByName(name) == null) { |
| markError(arg, "No parameter found in '" + node.getFunctionName() + "' with name '" + name + "'"); |
| } |
| } |
| } |
| } |
| } |