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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 utils = require("tsutils");
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-invalid-template-strings",
// tslint:disable-next-line no-invalid-template-strings
description: "Warns on use of `${` in non-template strings.",
optionsDescription: "Not configurable.",
options: null,
optionExamples: [true],
type: "functionality",
typescriptOnly: false,
};
/* tslint:enable:object-literal-sort-keys */
Rule.FAILURE_STRING = "Interpolation will only work for template strings.";
return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
function walk(ctx) {
return ts.forEachChild(ctx.sourceFile, function cb(node) {
if (utils.isStringLiteral(node)) {
check(node);
}
return ts.forEachChild(node, cb);
});
function check(node) {
var text = node.getText(ctx.sourceFile);
var findTemplateStrings = /\\*\$\{/g;
var instance = findTemplateStrings.exec(text);
while (instance !== null) {
var matchLength = instance[0].length;
var backslashCount = matchLength - 2;
var instanceIsEscaped = backslashCount % 2 === 1;
if (!instanceIsEscaped) {
var start = node.getStart() + (instance.index + backslashCount);
ctx.addFailureAt(start, 2, Rule.FAILURE_STRING);
}
instance = findTemplateStrings.exec(text);
}
}
}
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