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node_modules/tslint/lib/rules/noImportSideEffectRule.js

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+"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;
+var utils = require("tsutils");
+var Lint = require("../index");
+var OPTION_IGNORE_MODULE = "ignore-module";
+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) {
+        var patternConfig = this.ruleArguments[this.ruleArguments.length - 1];
+        var ignorePattern = patternConfig === undefined
+            ? undefined
+            : new RegExp(patternConfig[OPTION_IGNORE_MODULE]);
+        return this.applyWithFunction(sourceFile, walk, ignorePattern);
+    };
+    Rule.metadata = {
+        description: "Avoid import statements with side-effect.",
+        optionExamples: [true, [true, (_a = {}, _a[OPTION_IGNORE_MODULE] = "(\\.html|\\.css)$", _a)]],
+        options: {
+            items: {
+                properties: {
+                    "ignore-module": {
+                        type: "string",
+                    },
+                },
+                type: "object",
+            },
+            maxLength: 1,
+            minLength: 0,
+            type: "array",
+        },
+        optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            One argument may be optionally provided:\n\n            * `", "` allows to specify a regex and ignore modules which it matches."], ["\n            One argument may be optionally provided:\n\n            * \\`", "\\` allows to specify a regex and ignore modules which it matches."])), OPTION_IGNORE_MODULE),
+        rationale: "Imports with side effects may have behavior which is hard for static verification.",
+        ruleName: "no-import-side-effect",
+        type: "typescript",
+        typescriptOnly: false,
+    };
+    Rule.FAILURE_STRING = "import with explicit side-effect";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+    var ignorePattern = ctx.options, sourceFile = ctx.sourceFile;
+    for (var _i = 0, _a = sourceFile.statements; _i < _a.length; _i++) {
+        var statement = _a[_i];
+        if (!utils.isImportDeclaration(statement)) {
+            continue;
+        }
+        var importClause = statement.importClause, moduleSpecifier = statement.moduleSpecifier;
+        if (importClause !== undefined || !utils.isStringLiteral(moduleSpecifier)) {
+            continue;
+        }
+        if (ignorePattern === undefined || !ignorePattern.test(moduleSpecifier.text)) {
+            ctx.addFailureAtNode(statement, Rule.FAILURE_STRING);
+        }
+    }
+}
+var templateObject_1;