--- /dev/null
+"use strict";
+/**
+ * @license
+ * Copyright 2013 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 ALLOW_EMPTY_CATCH = "allow-empty-catch";
+var ALLOW_EMPTY_FUNCTIONS = "allow-empty-functions";
+var Rule = /** @class */ (function (_super) {
+ tslib_1.__extends(Rule, _super);
+ function Rule() {
+ return _super !== null && _super.apply(this, arguments) || this;
+ }
+ Rule.prototype.apply = function (sourceFile) {
+ return this.applyWithFunction(sourceFile, walk, {
+ allowEmptyCatch: this.ruleArguments.indexOf(ALLOW_EMPTY_CATCH) !== -1,
+ allowEmptyFunctions: this.ruleArguments.indexOf(ALLOW_EMPTY_FUNCTIONS) !== -1,
+ });
+ };
+ /* tslint:disable:object-literal-sort-keys */
+ Rule.metadata = {
+ ruleName: "no-empty",
+ description: "Disallows empty blocks.",
+ descriptionDetails: "Blocks with a comment inside are not considered empty.",
+ rationale: "Empty blocks are often indicators of missing code.",
+ optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n If `", "` is specified, then catch blocks are allowed to be empty.\n If `", "` is specified, then function definitions are allowed to be empty."], ["\n If \\`", "\\` is specified, then catch blocks are allowed to be empty.\n If \\`", "\\` is specified, then function definitions are allowed to be empty."])), ALLOW_EMPTY_CATCH, ALLOW_EMPTY_FUNCTIONS),
+ options: {
+ type: "array",
+ items: {
+ anyOf: [
+ {
+ type: "string",
+ enum: [ALLOW_EMPTY_CATCH],
+ },
+ {
+ type: "string",
+ enum: [ALLOW_EMPTY_FUNCTIONS],
+ },
+ ],
+ },
+ },
+ optionExamples: [
+ true,
+ [true, ALLOW_EMPTY_CATCH],
+ [true, ALLOW_EMPTY_FUNCTIONS],
+ [true, ALLOW_EMPTY_CATCH, ALLOW_EMPTY_FUNCTIONS],
+ ],
+ type: "functionality",
+ typescriptOnly: false,
+ };
+ /* tslint:enable:object-literal-sort-keys */
+ Rule.FAILURE_STRING = "block is empty";
+ return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+ return ts.forEachChild(ctx.sourceFile, function cb(node) {
+ if (node.kind === ts.SyntaxKind.Block &&
+ node.statements.length === 0 &&
+ !isExcluded(node.parent, ctx.options)) {
+ var start = node.getStart(ctx.sourceFile);
+ // Block always starts with open brace. Adding 1 to its start gives us the end of the brace,
+ // which can be used to conveniently check for comments between braces
+ if (Lint.hasCommentAfterPosition(ctx.sourceFile.text, start + 1)) {
+ return;
+ }
+ return ctx.addFailure(start, node.end, Rule.FAILURE_STRING);
+ }
+ return ts.forEachChild(node, cb);
+ });
+}
+function isExcluded(node, options) {
+ if (options.allowEmptyCatch && node.kind === ts.SyntaxKind.CatchClause) {
+ return true;
+ }
+ if (options.allowEmptyFunctions &&
+ (node.kind === ts.SyntaxKind.MethodDeclaration ||
+ node.kind === ts.SyntaxKind.FunctionDeclaration ||
+ node.kind === ts.SyntaxKind.FunctionExpression ||
+ node.kind === ts.SyntaxKind.ArrowFunction)) {
+ return true;
+ }
+ return (tsutils_1.isConstructorDeclaration(node) &&
+ /* If constructor is private or protected, the block is allowed to be empty.
+ The constructor is there on purpose to disallow instantiation from outside the class */
+ /* The public modifier does not serve a purpose here. It can only be used to allow instantiation of a base class where
+ the super constructor is protected. But then the block would not be empty, because of the call to super() */
+ (tsutils_1.hasModifier(node.modifiers, ts.SyntaxKind.PrivateKeyword, ts.SyntaxKind.ProtectedKeyword) ||
+ node.parameters.some(tsutils_1.isParameterProperty)));
+}
+var templateObject_1;