/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
module.exports = function getInnerRequest(resolver, request) {
	if(typeof request.__innerRequest === "string" &&
		request.__innerRequest_request === request.request &&
		request.__innerRequest_relativePath === request.relativePath)
		return request.__innerRequest;
	var innerRequest;
	if(request.request) {
		innerRequest = request.request;
		if(/^\.\.?\//.test(innerRequest) && request.relativePath) {
			innerRequest = resolver.join(request.relativePath, innerRequest);
		}
	} else {
		innerRequest = request.relativePath;
	}
	request.__innerRequest_request = request.request;
	request.__innerRequest_relativePath = request.relativePath;
	return request.__innerRequest = innerRequest;
};