@typed/test/lib.es2015/typescript/registerTsPaths.js

Testing made simple.

import { createMatchPath } from 'tsconfig-paths/lib';
export function registerTsPaths(options) {
    const { baseUrl, paths } = options;
    if (baseUrl && paths) {
        const matchPath = createMatchPath(baseUrl, paths);
        // Patch node's module loading
        // tslint:disable-next-line:no-require-imports variable-name
        const Module = require('module');
        const originalResolveFilename = Module._resolveFilename;
        // tslint:disable-next-line:no-any
        // tslint:disable-next-line:variable-name
        Module._resolveFilename = function (request, _parent) {
            const found = matchPath(request);
            if (found) {
                const modifiedArguments = [found].concat([].slice.call(arguments, 1)); // Passes all arguments. Even those that is not specified above.
                // tslint:disable-next-line:no-invalid-this
                return originalResolveFilename.apply(this, modifiedArguments);
            }
            // tslint:disable-next-line:no-invalid-this
            return originalResolveFilename.apply(this, arguments);
        };
    }
    return options;
}
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