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"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.
*/
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 OPTION_IGNORE_FOR_LOOP = "ignore-for-loop";
var Rule = (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, { ignoreForLoop: this.ruleArguments.indexOf(OPTION_IGNORE_FOR_LOOP) !== -1 });
};
return Rule;
}(Lint.Rules.AbstractRule));
/* tslint:disable:object-literal-sort-keys */
Rule.metadata = {
ruleName: "one-variable-per-declaration",
description: "Disallows multiple variable definitions in the same declaration statement.",
optionsDescription: (_a = ["\n One argument may be optionally provided:\n\n * `", "` allows multiple variable definitions in a for loop declaration."], _a.raw = ["\n One argument may be optionally provided:\n\n * \\`", "\\` allows multiple variable definitions in a for loop declaration."], Lint.Utils.dedent(_a, OPTION_IGNORE_FOR_LOOP)),
options: {
type: "array",
items: {
type: "string",
enum: [OPTION_IGNORE_FOR_LOOP],
},
minLength: 0,
maxLength: 1,
},
optionExamples: [true, [true, OPTION_IGNORE_FOR_LOOP]],
type: "style",
typescriptOnly: false,
};
/* tslint:enable:object-literal-sort-keys */
Rule.FAILURE_STRING = "Multiple variable declarations in the same statement are forbidden";
exports.Rule = Rule;
function walk(ctx) {
ts.forEachChild(ctx.sourceFile, function cb(node) {
if (tsutils_1.isVariableStatement(node) && node.declarationList.declarations.length > 1) {
ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
}
else if (tsutils_1.isForStatement(node) && !ctx.options.ignoreForLoop) {
var initializer = node.initializer;
if (initializer !== undefined
&& initializer.kind === ts.SyntaxKind.VariableDeclarationList
&& initializer.declarations.length > 1) {
ctx.addFailureAtNode(initializer, Rule.FAILURE_STRING);
}
}
ts.forEachChild(node, cb);
});
}
var _a;
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