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-rw-r--r--dom/quota/test/modules/content/ModuleLoader.js61
1 files changed, 61 insertions, 0 deletions
diff --git a/dom/quota/test/modules/content/ModuleLoader.js b/dom/quota/test/modules/content/ModuleLoader.js
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+++ b/dom/quota/test/modules/content/ModuleLoader.js
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+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+export function ModuleLoader(base, depth, proto) {
+ const modules = {};
+
+ const principal = SpecialPowers.wrap(document).nodePrincipal;
+
+ const sharedGlobalSandbox = SpecialPowers.Cu.Sandbox(principal, {
+ invisibleToDebugger: true,
+ sandboxName: "FS Module Loader",
+ sandboxPrototype: proto,
+ wantComponents: false,
+ wantGlobalProperties: [],
+ wantXrays: false,
+ });
+
+ const require = async function (id) {
+ if (modules[id]) {
+ return modules[id].exported_symbols;
+ }
+
+ const url = new URL(depth + id, base);
+
+ const module = Object.create(null, {
+ exported_symbols: {
+ configurable: false,
+ enumerable: true,
+ value: Object.create(null),
+ writable: true,
+ },
+ });
+
+ modules[id] = module;
+
+ const properties = {
+ require_module: require,
+ exported_symbols: module.exported_symbols,
+ };
+
+ // Create a new object in this sandbox, that will be used as the scope
+ // object for this particular module.
+ const sandbox = sharedGlobalSandbox.Object();
+ Object.assign(sandbox, properties);
+
+ SpecialPowers.Services.scriptloader.loadSubScript(url.href, sandbox);
+
+ return module.exported_symbols;
+ };
+
+ const returnObj = {
+ require: {
+ enumerable: true,
+ value: require,
+ },
+ };
+
+ return Object.create(null, returnObj);
+}