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node_modules/tslint/lib/rules/noNamespaceRule.js

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+"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_ALLOW_DECLARATIONS = "allow-declarations";
+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, {
+            allowDeclarations: this.ruleArguments.indexOf(OPTION_ALLOW_DECLARATIONS) !== -1,
+        });
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-namespace",
+        description: "Disallows use of internal `module`s and `namespace`s.",
+        descriptionDetails: "This rule still allows the use of `declare module ... {}`",
+        rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            ES6-style external modules are the standard way to modularize code.\n            Using `module {}` and `namespace {}` are outdated ways to organize TypeScript code."], ["\n            ES6-style external modules are the standard way to modularize code.\n            Using \\`module {}\\` and \\`namespace {}\\` are outdated ways to organize TypeScript code."]))),
+        optionsDescription: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n            One argument may be optionally provided:\n\n            * `", "` allows `declare namespace ... {}` to describe external APIs."], ["\n            One argument may be optionally provided:\n\n            * \\`", "\\` allows \\`declare namespace ... {}\\` to describe external APIs."])), OPTION_ALLOW_DECLARATIONS),
+        options: {
+            type: "array",
+            items: {
+                type: "string",
+                enum: [OPTION_ALLOW_DECLARATIONS],
+            },
+            minLength: 0,
+            maxLength: 1,
+        },
+        optionExamples: [true, [true, OPTION_ALLOW_DECLARATIONS]],
+        type: "typescript",
+        typescriptOnly: true,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "'namespace' and 'module' are disallowed";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+    // Ignore all .d.ts files by returning and not walking their ASTs.
+    // .d.ts declarations do not have the Ambient flag set, but are still declarations.
+    if (ctx.sourceFile.isDeclarationFile && ctx.options.allowDeclarations) {
+        return;
+    }
+    for (var _i = 0, _a = ctx.sourceFile.statements; _i < _a.length; _i++) {
+        var node = _a[_i];
+        if (node.kind === ts.SyntaxKind.ModuleDeclaration) {
+            if (node.name.kind !== ts.SyntaxKind.StringLiteral &&
+                !tsutils_1.isNodeFlagSet(node, ts.NodeFlags.GlobalAugmentation) &&
+                (!ctx.options.allowDeclarations ||
+                    !tsutils_1.hasModifier(node.modifiers, ts.SyntaxKind.DeclareKeyword))) {
+                ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
+            }
+        }
+    }
+}
+var templateObject_1, templateObject_2;