| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library services.src.linter; |
| |
| import 'package:analyzer/analyzer.dart'; |
| import 'package:analyzer/plugin/options.dart'; |
| import 'package:linter/src/rules.dart'; |
| import 'package:yaml/yaml.dart'; |
| |
| /** |
| * An error code indicating an undefined lint rule. |
| * |
| * Parameters: |
| * 0: the rule name |
| */ |
| const AnalysisOptionsWarningCode UNDEFINED_LINT_WARNING = |
| const AnalysisOptionsWarningCode( |
| 'UNDEFINED_LINT_WARNING', "'{0}' is not a recognized lint rule"); |
| |
| /// Validates `linter` rule configurations. |
| class LinterRuleOptionsValidator extends OptionsValidator { |
| static const linter = 'linter'; |
| static const rulesKey = 'rules'; |
| @override |
| List<AnalysisError> validate( |
| ErrorReporter reporter, Map<String, YamlNode> options) { |
| List<AnalysisError> errors = <AnalysisError>[]; |
| var node = options[linter]; |
| if (node is YamlMap) { |
| var rules = node.nodes[rulesKey]; |
| validateRules(rules, reporter); |
| } |
| return errors; |
| } |
| |
| validateRules(dynamic rules, ErrorReporter reporter) { |
| if (rules is YamlList) { |
| //TODO(pq): migrate this to a proper API once there is one. |
| Iterable<String> registeredLints = ruleRegistry.map((r) => r.name); |
| rules.nodes.forEach((YamlNode ruleNode) { |
| if (!registeredLints.contains(ruleNode.value)) { |
| reporter.reportErrorForSpan( |
| UNDEFINED_LINT_WARNING, ruleNode.span, [ruleNode.value]); |
| } |
| }); |
| } |
| } |
| } |