tslint-react/rules/jsxSpaceBeforeTrailingSlashRule.js

Lint rules related to React & JSX for TSLint

"use strict";
/**
 * @license
 * Copyright 2016 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.
 */
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Lint = require("tslint");
var _3_0_1 = require("tsutils/typeguard/3.0");
var ts = require("typescript");
var Rule = /** @class */ (function (_super) {
    __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: "jsx-space-before-trailing-slash",
        description: "Checks that self-closing JSX elements have a space before the '/>' part.",
        options: null,
        optionsDescription: "",
        optionExamples: ["true"],
        type: "style",
        typescriptOnly: false,
    };
    /* tslint:enable:object-literal-sort-keys */
    Rule.FAILURE_STRING = "Self-closing JSX elements must have a space before the '/>' part";
    return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
var closingLength = "/>".length;
var isWhiteSpace = function (char) { return /\s/.test(char); };
var hasWhitespaceBeforeClosing = function (nodeText) {
    return isWhiteSpace(nodeText.charAt(nodeText.length - closingLength - 1));
};
function walk(ctx) {
    return ts.forEachChild(ctx.sourceFile, function cb(node) {
        if (_3_0_1.isJsxSelfClosingElement(node)) {
            if (!hasWhitespaceBeforeClosing(node.getText(ctx.sourceFile))) {
                var fix = Lint.Replacement.appendText(node.getEnd() - closingLength, " ");
                ctx.addFailureAtNode(node, Rule.FAILURE_STRING, fix);
            }
        }
        return ts.forEachChild(node, cb);
    });
}