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/* 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, referencingInfo) {
let module = this.loadAndParse(name);
module.declarationInstantiation();
return module.evaluation();
}
populateImportMeta(module, metaObject) {
// For the shell, use the script's filename as the base URL.
let path;
if (ReflectApply(MapPrototypeHas, this.modulePaths, [module])) {
path = ReflectApply(MapPrototypeGet, this.modulePaths, [module]);
} else {
path = "(unknown)";
}
metaObject.url = path;
}
};
setModuleResolveHook((referencingInfo, requestName) => {
let path = ReflectLoader.resolve(requestName, referencingInfo);
return ReflectLoader.loadAndParse(path);
});
setModuleMetadataHook((module, metaObject) => {
ReflectLoader.populateImportMeta(module, metaObject);
});
setModuleDynamicImportHook((referencingInfo, specifier, promise) => {
try {
let path = ReflectLoader.resolve(specifier, referencingInfo);
ReflectLoader.loadAndExecute(path);
finishDynamicModuleImport(referencingInfo, specifier, promise);
} catch (err) {
abortDynamicModuleImport(referencingInfo, specifier, promise, err);
}
});
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