+++ /dev/null
-"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 });
-var tslib_1 = require("tslib");
-var _a, _b;
-var tsutils_1 = require("tsutils");
-var ts = require("typescript");
-var Lint = require("../index");
-var OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS = "allow-namespace-imports";
-var Rule = /** @class */ (function (_super) {
- tslib_1.__extends(Rule, _super);
- function Rule() {
- return _super !== null && _super.apply(this, arguments) || this;
- }
- Rule.FAILURE_STRING = function (module) {
- return "Multiple imports from '" + module + "' can be combined into one.";
- };
- Rule.NAMESPACE_FAILURE_STRING = function (module) {
- return "Multiple wildcard imports from the same module, '" + module + "', are prohibited.";
- };
- Rule.prototype.apply = function (sourceFile) {
- var _a;
- return this.applyWithFunction(sourceFile, walk, (_a = {},
- _a[OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS] = !!(this.ruleArguments.length > 0 &&
- this.ruleArguments[0] !== null &&
- this.ruleArguments[0][OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS]),
- _a));
- };
- /* tslint:disable:object-literal-sort-keys */
- Rule.metadata = {
- ruleName: "no-duplicate-imports",
- description: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Disallows multiple import statements from the same module."], ["\n Disallows multiple import statements from the same module."]))),
- rationale: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n Using a single import statement per module will make the code clearer because you can see everything being imported\n from that module on one line."], ["\n Using a single import statement per module will make the code clearer because you can see everything being imported\n from that module on one line."]))),
- optionsDescription: Lint.Utils.dedent(templateObject_3 || (templateObject_3 = tslib_1.__makeTemplateObject(["\n \"", "\" allows you to import namespaces on separate lines."], ["\n \"", "\" allows you to import namespaces on separate lines."])), OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS),
- options: {
- type: "object",
- properties: (_a = {},
- _a[OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS] = {
- type: "boolean",
- },
- _a),
- },
- optionExamples: [[true, (_b = {}, _b[OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS] = true, _b)]],
- type: "maintainability",
- typescriptOnly: false,
- };
- return Rule;
-}(Lint.Rules.AbstractRule));
-exports.Rule = Rule;
-function walk(ctx) {
- walkWorker(ctx, ctx.sourceFile.statements, {
- imports: new Set(),
- namespaceImports: new Set(),
- });
-}
-function statementIsNamespaceImport(statement) {
- return !!(statement.importClause !== undefined &&
- statement.importClause.namedBindings !== undefined &&
- tsutils_1.isNamespaceImport(statement.importClause.namedBindings));
-}
-function walkWorker(ctx, statements, seen) {
- for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
- var statement = statements_1[_i];
- if (tsutils_1.isImportDeclaration(statement) &&
- tsutils_1.isLiteralExpression(statement.moduleSpecifier) &&
- (!statementIsNamespaceImport(statement) ||
- !ctx.options[OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS])) {
- var text = statement.moduleSpecifier.text;
- if (seen.imports.has(text)) {
- ctx.addFailureAtNode(statement, Rule.FAILURE_STRING(text));
- }
- seen.imports.add(text);
- }
- else if (tsutils_1.isImportDeclaration(statement) &&
- tsutils_1.isLiteralExpression(statement.moduleSpecifier) &&
- statementIsNamespaceImport(statement) &&
- ctx.options[OPTION_ALLOW_SEPARATE_NAMESPACE_IMPORTS]) {
- var text = statement.moduleSpecifier.text;
- if (seen.namespaceImports.has(text)) {
- ctx.addFailureAtNode(statement, Rule.NAMESPACE_FAILURE_STRING(text));
- }
- seen.namespaceImports.add(text);
- }
- if (tsutils_1.isModuleDeclaration(statement) &&
- statement.body !== undefined &&
- statement.name.kind === ts.SyntaxKind.StringLiteral) {
- // If this is a module augmentation, re-use `seen` since those imports could be moved outside.
- // If this is an ambient module, create a fresh `seen`
- // because they should have separate imports to avoid becoming augmentations.
- walkWorker(ctx, statement.body.statements, ts.isExternalModule(ctx.sourceFile)
- ? seen
- : {
- imports: new Set(),
- namespaceImports: new Set(),
- });
- }
- }
-}
-var templateObject_1, templateObject_2, templateObject_3;