tslint-consistent-codestyle/rules/noStaticThisRule.js

Additional rules to enforce constistent code style with tslint

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var ts = require("typescript");
var Lint = require("tslint");
var utils = require("tsutils");
var FAIL_MESSAGE = "don't use this in static methods";
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);
    };
    return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
function walk(ctx) {
    var stack = [];
    var current = false;
    var cb = function (child) {
        var boundary = utils.isScopeBoundary(child);
        if (boundary) {
            stack.push(current);
            if (!current || utils.hasOwnThisReference(child))
                current = isStatic(child);
        }
        if (current && child.kind === ts.SyntaxKind.ThisKeyword)
            ctx.addFailureAtNode(child, FAIL_MESSAGE);
        ts.forEachChild(child, cb);
        if (boundary)
            current = stack.pop();
    };
    return ts.forEachChild(ctx.sourceFile, cb);
}
function isStatic(node) {
    return (node.kind === ts.SyntaxKind.MethodDeclaration ||
        node.kind === ts.SyntaxKind.GetAccessor ||
        node.kind === ts.SyntaxKind.SetAccessor) &&
        utils.hasModifier(node.modifiers, ts.SyntaxKind.StaticKeyword);
}
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