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node_modules/tslint/lib/rules/noMergeableNamespaceRule.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 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;
+    }
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.failureStringFactory = function (name, seenBeforeLine) {
+        return "Mergeable namespace '" + name + "' found. Merge its contents with the namespace on line " + seenBeforeLine + ".";
+    };
+    Rule.prototype.apply = function (sourceFile) {
+        return this.applyWithWalker(new Walker(sourceFile, this.ruleName, undefined));
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-mergeable-namespace",
+        description: "Disallows mergeable namespaces in the same file.",
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        type: "maintainability",
+        typescriptOnly: true,
+    };
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+var Walker = /** @class */ (function (_super) {
+    tslib_1.__extends(Walker, _super);
+    function Walker() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    Walker.prototype.walk = function (node) {
+        return this.checkStatements(node.statements);
+    };
+    Walker.prototype.checkStatements = function (statements) {
+        var seen = new Map();
+        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
+            var statement = statements_1[_i];
+            if (statement.kind !== ts.SyntaxKind.ModuleDeclaration) {
+                continue;
+            }
+            var name = statement.name;
+            if (name.kind === ts.SyntaxKind.Identifier) {
+                var text = name.text;
+                var prev = seen.get(text);
+                if (prev !== undefined) {
+                    this.addFailureAtNode(name, Rule.failureStringFactory(text, this.getLineOfNode(prev.name)));
+                }
+                seen.set(text, statement);
+            }
+            // Recursively check in all module declarations
+            this.checkModuleDeclaration(statement);
+        }
+    };
+    Walker.prototype.checkModuleDeclaration = function (decl) {
+        var body = decl.body;
+        if (body === undefined) {
+            return;
+        }
+        switch (body.kind) {
+            case ts.SyntaxKind.ModuleBlock:
+                this.checkStatements(body.statements);
+                break;
+            case ts.SyntaxKind.ModuleDeclaration:
+                this.checkModuleDeclaration(body);
+        }
+    };
+    Walker.prototype.getLineOfNode = function (node) {
+        return ts.getLineAndCharacterOfPosition(this.sourceFile, node.pos).line + 1;
+    };
+    return Walker;
+}(Lint.AbstractWalker));