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mohemmionic5/Mohem/node_modules_/tslint/lib/rules/unnecessaryConstructorRule.js

71 lines
2.8 KiB
JavaScript

"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 tsutils_1 = 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);
};
Rule.metadata = {
description: "Prevents blank constructors, as they are redundant.",
optionExamples: [true],
options: null,
optionsDescription: "Not configurable.",
rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n JavaScript implicitly adds a blank constructor when there isn't one.\n It's not necessary to manually add one in.\n "], ["\n JavaScript implicitly adds a blank constructor when there isn't one.\n It's not necessary to manually add one in.\n "]))),
ruleName: "unnecessary-constructor",
type: "functionality",
typescriptOnly: false,
};
Rule.FAILURE_STRING = "Remove unnecessary empty constructor.";
return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
var isEmptyConstructor = function (node) {
return node.body !== undefined && node.body.statements.length === 0;
};
var containsConstructorParameter = function (node) {
for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
var parameter = _a[_i];
if (tsutils_1.isParameterProperty(parameter)) {
return true;
}
}
return false;
};
function walk(context) {
var callback = function (node) {
if (tsutils_1.isConstructorDeclaration(node) &&
isEmptyConstructor(node) &&
!containsConstructorParameter(node)) {
context.addFailureAtNode(node, Rule.FAILURE_STRING);
}
else {
ts.forEachChild(node, callback);
}
};
return ts.forEachChild(context.sourceFile, callback);
}
var templateObject_1;