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mirror of https://github.com/kkapsner/CanvasBlocker synced 2024-10-31 18:38:45 +01:00
CanvasBlocker/lib/require.js
2019-11-28 01:26:35 +01:00

43 lines
1.1 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const require = function(){
"use strict";
if (!window.scope){
window.scope = {};
}
const scope = window.scope;
function getScopeName(module){
const scopeName = module.replace(/^\..*\//, "").replace(/\..+/, "");
// console.log(scopeName);
return scopeName;
}
function require(module){
if (module.startsWith(".")){
const scopeName = getScopeName(module);
return scope[scopeName];
}
throw new ReferenceError("Unable to get non relative module " + module + "!");
}
require.register = function(moduleName, module = {}){
const scopeName = getScopeName(moduleName);
if (!scope.hasOwnProperty(scopeName)){
scope[scopeName] = module;
return module;
}
else {
require("./logging").error("Module", moduleName, "already registered.");
return scope[scopeName];
}
};
require.exists = function(module){
return scope.hasOwnProperty(getScopeName(module));
};
return require;
}();