text: "use strict";
  /**
   * @license
   * Copyright 2017 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 });
  exports.Rule = void 0;
  var tslib_1 = require("tslib");
  var ts = require("typescript");
  var Lint = require("../index");
  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);
      };
      /* tslint:disable:object-literal-sort-keys */
      Rule.metadata = {
          ruleName: "no-non-null-assertion",
          description: "Disallows non-null assertions using the `!` postfix operator.",
          rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            Using non-null assertion cancels the benefits of the strict null checking mode.\n\n            Instead of assuming objects exist:\n\n            ```\n            function foo(instance: MyClass | undefined) {\n                instance!.doWork();\n            }\n            ```\n\n            Either inform the strict type system that the object must exist:\n\n            ```\n            function foo(instance: MyClass) {\n                instance.doWork();\n            }\n            ```\n\n            Or verify that the instance exists, which will inform the type checker:\n\n            ```\n            function foo(instance: MyClass | undefined) {\n                if (instance !== undefined) {\n                    instance.doWork();\n                }\n            }\n            ```\n        "], ["\n            Using non-null assertion cancels the benefits of the strict null checking mode.\n\n            Instead of assuming objects exist:\n\n            \\`\\`\\`\n            function foo(instance: MyClass | undefined) {\n                instance!.doWork();\n            }\n            \\`\\`\\`\n\n            Either inform the strict type system that the object must exist:\n\n            \\`\\`\\`\n            function foo(instance: MyClass) {\n                instance.doWork();\n            }\n            \\`\\`\\`\n\n            Or verify that the instance exists, which will inform the type checker:\n\n            \\`\\`\\`\n            function foo(instance: MyClass | undefined) {\n                if (instance !== undefined) {\n                    instance.doWork();\n                }\n            }\n            \\`\\`\\`\n        "]))),
          optionsDescription: "Not configurable.",
          options: null,
          optionExamples: [true],
          type: "typescript",
          typescriptOnly: true,
      };
      /* tslint:enable:object-literal-sort-keys */
      Rule.FAILURE_STRING = "Forbidden non null assertion";
      return Rule;
  }(Lint.Rules.AbstractRule));
  exports.Rule = Rule;
  function walk(ctx) {
      return ts.forEachChild(ctx.sourceFile, function cb(node) {
          if (node.kind === ts.SyntaxKind.NonNullExpression) {
              ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
          }
          return ts.forEachChild(node, cb);
      });
  }
  var templateObject_1;
  