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node_modules/tslint/lib/rules/noDefaultExportRule.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;
+    }
+    Rule.prototype.apply = function (sourceFile) {
+        return this.applyWithFunction(sourceFile, walk);
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-default-export",
+        description: "Disallows default exports in ES6-style modules.",
+        descriptionDetails: "Use named exports instead.",
+        rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            Named imports/exports [promote clarity](https://github.com/palantir/tslint/issues/1182#issue-151780453).\n            In addition, current tooling differs on the correct way to handle default imports/exports.\n            Avoiding them all together can help avoid tooling bugs and conflicts."], ["\n            Named imports/exports [promote clarity](https://github.com/palantir/tslint/issues/1182#issue-151780453).\n            In addition, current tooling differs on the correct way to handle default imports/exports.\n            Avoiding them all together can help avoid tooling bugs and conflicts."]))),
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        type: "maintainability",
+        typescriptOnly: false,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "Use of default exports is forbidden";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+    if (ctx.sourceFile.isDeclarationFile || !ts.isExternalModule(ctx.sourceFile)) {
+        return;
+    }
+    for (var _i = 0, _a = ctx.sourceFile.statements; _i < _a.length; _i++) {
+        var statement = _a[_i];
+        if (statement.kind === ts.SyntaxKind.ExportAssignment) {
+            if (!statement.isExportEquals) {
+                ctx.addFailureAtNode(statement.getChildAt(1, ctx.sourceFile), Rule.FAILURE_STRING);
+            }
+        }
+        else if (statement.modifiers !== undefined &&
+            statement.modifiers.length >= 2 &&
+            statement.modifiers[0].kind === ts.SyntaxKind.ExportKeyword &&
+            statement.modifiers[1].kind === ts.SyntaxKind.DefaultKeyword) {
+            ctx.addFailureAtNode(statement.modifiers[1], Rule.FAILURE_STRING);
+        }
+    }
+}
+var templateObject_1;