Initial commit (from f5274cbdce4ae7c9e4b937dcdf95ac70ae436d5f)

node_modules/tslint/lib/rules/preferWhileRule.js

@@ -0,0 +1,76 @@
+"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 preferWhile_examples_1 = require("./code-examples/preferWhile.examples");
+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 _this = this;
+        var failures = [];
+        var cb = function (node) {
+            if (tsutils_1.isForStatement(node) && _this.doesNodeViolateRule(node)) {
+                failures.push(_this.createFailure(sourceFile, node));
+            }
+            return ts.forEachChild(node, cb);
+        };
+        ts.forEachChild(sourceFile, cb);
+        return failures;
+    };
+    Rule.prototype.doesNodeViolateRule = function (node) {
+        return node.initializer === undefined && node.incrementor === undefined;
+    };
+    Rule.prototype.createFailure = function (sourceFile, node) {
+        var start = node.getStart(sourceFile);
+        var end = node.statement.pos;
+        var fix;
+        if (node.condition === undefined) {
+            fix = Lint.Replacement.replaceFromTo(start, end, "while (true)");
+        }
+        else {
+            fix = [
+                Lint.Replacement.replaceFromTo(start, node.condition.getStart(sourceFile), "while ("),
+                Lint.Replacement.deleteFromTo(node.condition.end, end - 1),
+            ];
+        }
+        return new Lint.RuleFailure(sourceFile, start, end, Rule.FAILURE_STRING, this.ruleName, fix);
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "prefer-while",
+        description: "Prefer `while` loops instead of `for` loops without an initializer and incrementor.",
+        rationale: "Simplifies the readability of the loop statement, while maintaining the same functionality.",
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        hasFix: true,
+        type: "style",
+        typescriptOnly: false,
+        codeExamples: preferWhile_examples_1.codeExamples,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "Prefer `while` loops instead of `for` loops without an initializer and incrementor.";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;