From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- js/src/shell/ModuleLoader.js | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 js/src/shell/ModuleLoader.js (limited to 'js/src/shell/ModuleLoader.js') diff --git a/js/src/shell/ModuleLoader.js b/js/src/shell/ModuleLoader.js new file mode 100644 index 000000000..d8767f05f --- /dev/null +++ b/js/src/shell/ModuleLoader.js @@ -0,0 +1,43 @@ +/* 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/. */ + +// A basic synchronous module loader for testing the shell. + +Reflect.Loader = new class { + constructor() { + this.registry = new Map(); + this.loadPath = getModuleLoadPath(); + } + + resolve(name) { + if (os.path.isAbsolute(name)) + return name; + + return os.path.join(this.loadPath, name); + } + + fetch(path) { + return os.file.readFile(path); + } + + loadAndParse(name) { + let path = this.resolve(name); + + if (this.registry.has(path)) + return this.registry.get(path); + + let source = this.fetch(path); + let module = parseModule(source, path); + this.registry.set(path, module); + return module; + } + + ["import"](name, referrer) { + let module = this.loadAndParse(name); + module.declarationInstantiation(); + return module.evaluation(); + } +}; + +setModuleResolveHook((module, requestName) => Reflect.Loader.loadAndParse(requestName)); -- cgit v1.2.3