tslint-microsoft-contrib
Version:
TSLint Rules for Microsoft
61 lines • 2.42 kB
JavaScript
;
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 ts = require("typescript");
var Lint = require("tslint");
var tsutils = require("tsutils");
var FAILURE_STRING = 'Replace void 0 with undefined';
var Rule = (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);
};
Rule.metadata = {
ruleName: 'void-zero',
type: 'maintainability',
description: 'Avoid using void 0; use undefined instead.',
hasFix: true,
rationale: 'void 0, which resolves to undefined, can be confusing to newcomers. Exclusively use undefined to reduce ambiguity.',
options: null,
optionsDescription: '',
typescriptOnly: true,
issueClass: 'Non-SDL',
issueType: 'Warning',
severity: 'Low',
level: 'Opportunity for Excellence',
group: 'Clarity',
commonWeaknessEnumeration: '480'
};
return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
function walk(ctx) {
function cb(node) {
if (tsutils.isVoidExpression(node)) {
if (node.expression !== undefined && node.expression.getText() === '0') {
var nodeStart = node.getStart();
var nodeWidth = node.getWidth();
var fix = new Lint.Replacement(nodeStart, nodeWidth, 'undefined');
ctx.addFailureAt(nodeStart, nodeWidth, FAILURE_STRING, fix);
}
}
return ts.forEachChild(node, cb);
}
return ts.forEachChild(ctx.sourceFile, cb);
}
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