--- /dev/null
+"use strict";
+/**
+ * @license
+ * Copyright 2018 Palantir Technologies, Inc.
+ *
+ * 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.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+var tslib_1 = require("tslib");
+var tsutils_1 = require("tsutils");
+var ts = require("typescript");
+var Lint = require("../index");
+var OPTION_EXCLUDE_CLASS_EXPRESSIONS = "exclude-class-expressions";
+var Rule = /** @class */ (function (_super) {
+ tslib_1.__extends(Rule, _super);
+ function Rule() {
+ return _super !== null && _super.apply(this, arguments) || this;
+ }
+ /* tslint:enable:object-literal-sort-keys */
+ Rule.FAILURE_STRING = function (maxCount) {
+ var maxClassWord = maxCount === 1 ? "class per file is" : "classes per file are";
+ return "A maximum of " + maxCount + " " + maxClassWord + " allowed.";
+ };
+ Rule.prototype.apply = function (sourceFile) {
+ var argument = this.ruleArguments[0];
+ var maxClasses = isNaN(argument) || argument > 0 ? argument : 1;
+ return this.applyWithFunction(sourceFile, walk, {
+ excludeClassExpressions: this.ruleArguments.indexOf(OPTION_EXCLUDE_CLASS_EXPRESSIONS) !== -1,
+ maxClasses: maxClasses,
+ });
+ };
+ /* tslint:disable:object-literal-sort-keys */
+ Rule.metadata = {
+ ruleName: "max-classes-per-file",
+ description: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n A file may not contain more than the specified number of classes"], ["\n A file may not contain more than the specified number of classes"]))),
+ rationale: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n Ensures that files have a single responsibility so that that classes each exist in their own files"], ["\n Ensures that files have a single responsibility so that that classes each exist in their own files"]))),
+ optionsDescription: Lint.Utils.dedent(templateObject_3 || (templateObject_3 = tslib_1.__makeTemplateObject(["\n The one required argument is an integer indicating the maximum number of classes that can appear in a\n file. An optional argument `\"exclude-class-expressions\"` can be provided to exclude class expressions\n from the overall class count."], ["\n The one required argument is an integer indicating the maximum number of classes that can appear in a\n file. An optional argument \\`\"exclude-class-expressions\"\\` can be provided to exclude class expressions\n from the overall class count."]))),
+ options: {
+ type: "array",
+ items: [
+ {
+ type: "number",
+ minimum: 1,
+ },
+ {
+ type: "string",
+ enum: [OPTION_EXCLUDE_CLASS_EXPRESSIONS],
+ },
+ ],
+ additionalItems: false,
+ minLength: 1,
+ maxLength: 2,
+ },
+ optionExamples: [[true, 1], [true, 5, OPTION_EXCLUDE_CLASS_EXPRESSIONS]],
+ type: "maintainability",
+ typescriptOnly: false,
+ };
+ return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+ var sourceFile = ctx.sourceFile, _a = ctx.options, maxClasses = _a.maxClasses, excludeClassExpressions = _a.excludeClassExpressions;
+ var classes = 0;
+ return ts.forEachChild(sourceFile, function cb(node) {
+ if (tsutils_1.isClassDeclaration(node) || (!excludeClassExpressions && tsutils_1.isClassExpression(node))) {
+ classes++;
+ if (classes > maxClasses) {
+ ctx.addFailureAtNode(node, Rule.FAILURE_STRING(maxClasses));
+ }
+ }
+ return ts.forEachChild(node, cb);
+ });
+}
+var templateObject_1, templateObject_2, templateObject_3;