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-rwxr-xr-xutils/lib/sandbox.js394
1 files changed, 0 insertions, 394 deletions
diff --git a/utils/lib/sandbox.js b/utils/lib/sandbox.js
deleted file mode 100755
index 93b77e0..0000000
--- a/utils/lib/sandbox.js
+++ /dev/null
@@ -1,394 +0,0 @@
-
-// NOTE: this file is used is the bootstrapping process,
-// so any "requires" must be accounted for in narwhal.js
-
-exports.Loader = function (options) {
- var loader = {};
- var factories = options.factories || {};
- var paths = options.paths;
- var extensions = options.extensions || ["", ".js"];
- var timestamps = {};
-
- loader.resolve = exports.resolve;
-
- loader.find = function (topId) {
- for (var j = 0; j < extensions.length; j++) {
- var extension = extensions[j];
- if (system.fs.isAbsolute(topId)) {
- var path = topId + extension;
- if (system.fs.isFile(path)) {
- return path;
- }
- }
- else {
- for (var i = 0; i < paths.length; i++) {
- var path = system.fs.join(paths[i], topId + extension);
- if (system.fs.isFile(path))
- return path;
- }
- }
- }
- throw new Error("require error: couldn't find \"" + topId + '"');
- };
-
- loader.fetch = function (topId, path) {
- if (!path)
- path = loader.find(topId);
- if (typeof system.fs.mtime === "function")
- timestamps[path] = system.fs.mtime(path);
- var text = system.fs.read(path, {
- 'charset': 'utf-8'
- });
- // we leave the endline so the error line numbers align
- text = text.replace(/^#[^\n]+\n/, "\n");
- return text;
- };
-
- loader.evaluate = function (text, topId) {
- if (system.evaluate) {
- var fileName = loader.find(topId);
- var factory = system.evaluate(text, fileName, 1);
- factory.path = fileName;
- return factory;
- } else {
- return new Function("require", "exports", "module", "system", "print", text);
- }
- };
-
- loader.load = function (topId) {
- if (!Object.prototype.hasOwnProperty.call(factories, topId)) {
- loader.reload(topId);
- } else if (typeof system.fs.mtime === "function") {
- var filePath = loader.find(topId);
- if (!Object.prototype.hasOwnProperty.call(timestamps, filePath) ||
- system.fs.mtime(filePath) > timestamps[filePath])
- loader.reload(topId);
- }
- return factories[topId];
- };
-
- loader.reload = function (topId, path) {
- factories[topId] = loader.evaluate(loader.fetch(topId, path), topId);
- };
-
- loader.isLoaded = function (topId) {
- return Object.prototype.hasOwnProperty.call(factories, topId);
- };
-
- loader.paths = paths;
- loader.extensions = extensions;
-
- return loader;
-};
-
-exports.MultiLoader = function (options) {
-
- var factories = options.factories || {};
-
- var self = {};
- self.paths = options.paths || [];
- self.loader = options.loader || exports.Loader(options);
- self.loaders = options.loaders || [
- ["", self.loader],
- [".js", self.loader]
- ];
-
- self.resolve = exports.resolve;
-
- self.find = function (topId) {
- for (var j = 0; j < self.loaders.length; j++) {
- var pair = self.loaders[j];
- var extension = pair[0];
- var loader = pair[1];
- if (system.fs.isAbsolute(topId)) {
- var path = topId + extension;
- if (system.fs.isFile(path)) {
- return [loader, path];
- }
- }
- else {
- for (var i = 0; i < self.paths.length; i++) {
- var path = system.fs.join(self.paths[i], topId + extension);
- if (system.fs.isFile(path)) {
- return [loader, path];
- }
- }
- }
- }
- throw "require error: couldn't find \"" + topId + '"';
- };
-
- self.load = function (topId) {
- if (!Object.prototype.hasOwnProperty.call(factories, topId))
- self.reload(topId);
- return factories[topId];
- };
-
- self.reload = function (topId) {
- var pair = self.find(topId);
- var loader = pair[0];
- var path = pair[1];
- loader.reload(topId, path);
- factories[topId] = loader.load(topId, path);
- };
-
- self.isLoaded = function (topId) {
- return Object.prototype.hasOwnProperty.call(factories, topId);
- };
-
- return self;
-};
-
-exports.AttenuatedLoader = function (loader) {
- var self = {};
-
- self.resolve = Object.freeze(function (id, baseId) {
- return loader.resolve(id, baseId);
- });
-
- self.fetch = Object.freeze(function (topId) {
- if (/\./.test(topId))
- throw new Error("Invalid module identifier");
- return loader.fetch(topId);
- });
-
- self.load = Object.freeze(function (topId, path) {
- if (/\./.test(topId))
- throw new Error("Invalid module identifier");
- return loader.load(topId, path);
- });
-
- self.reload = Object.freeze(function (topId) {
- if (/\./.test(topId))
- throw new Error("Invalid module identifier");
- return loader.reload(topId, path);
- });
-
- return Object.freeze(self);
-};
-
-exports.Sandbox = function (options) {
- options = options || {};
- var loader = options.loader;
- var sandboxSystem = options.system || system;
- var modules = options.modules || {};
- var debug = options.debug !== undefined ? !!options.debug : system.debug;
-
- // managed print free variable in the sandbox forwards
- // to system.print
- var print = options.print || function () {
- return sandboxSystem.print.apply(sandboxSystem, arguments);
- };
-
- var debugDepth = 0;
- var mainId;
-
- var sandbox = function (id, baseId, force, reload) {
- id = loader.resolve(id, baseId);
-
- /* populate memo with module instance */
- if (!Object.prototype.hasOwnProperty.call(modules, id) || force) {
-
- if (sandbox.debug) {
- debugDepth++;
- var debugAcc = "";
- for (var i = 0; i < debugDepth; i++) debugAcc += "+";
- system.print(debugAcc + " " + id, 'module');
- }
-
- var globals = {};
- if (sandbox.debug) {
- // record globals
- for (var name in global)
- globals[name] = true;
- }
-
- if (!Object.prototype.hasOwnProperty.call(modules, id) || reload)
- modules[id] = {};
- var exports = modules[id];
- if (reload)
- loader.reload(id);
-
- var factory = null;
- try {
- factory = loader.load(id);
- } finally {
- // poor man's catch and rethrow (Rhino sets file/line to where the exception is thrown, not created)
- if (!factory) {
- delete modules[id];
- if (sandbox.debug)
- debugDepth--;
- }
- }
- var require = Require(id, factory.path);
- var module = {
- 'id': id,
- 'path': factory.path
- };
- factory(require, exports, module, sandboxSystem, print);
-
- if (sandbox.debug) {
- // check for new globals
- for (var name in global)
- if (!globals[name])
- system.log.warn("NEW GLOBAL: " + name);
- }
-
- if (sandbox.debug) {
- var debugAcc = "";
- for (var i = 0; i < debugDepth; i++) debugAcc += "-";
- system.print(debugAcc + " " + id, 'module');
- debugDepth--;
- }
-
- }
-
- /* support curryId for modules in which it is requested */
- var exports = modules[id];
- var imports = {};
- var importsUsed = false;
- var curryUsed = false;
- for (var name in exports) {
- try {
- // This try/catch block is needed to handle wrapped Java
- // objects in Rhino.
- curryUsed = (
- typeof exports[name] == "function" &&
- exports[name].xNarwhalCurryId
- );
- } catch (exception) {};
-
- if (curryUsed) {
- importsUsed = true;
- imports[name] = (function (callback) {
- var curried = function () {
- return callback.apply(
- this,
- [baseId].concat(Array.prototype.slice.call(arguments, 0))
- );
- };
- curried.xNarwhalCurryId = callback;
- return curried;
- })(exports[name].xNarwhalCurryId);
- } else {
- imports[name] = exports[name];
- }
- }
-
- if (!importsUsed)
- imports = exports;
-
- return imports;
-
- };
-
- var Require = function (baseId, fileName) { // XXX deprecated fileName
- var require = function (id) {
- //try {
- return sandbox(id, baseId);
- //} catch (exception) {
- // if (exception.message)
- // exception.message += ' in ' + baseId;
- // throw exception;
- //}
- };
- require.id = baseId; // XXX deprecated
- require.loader = loader;
- require.fileName = fileName; // XXX deprecated
- require.main = mainId; // XXX deprecated
- require.paths = loader.paths;
- require.extensions = loader.extensions;
- /* offers a facility to request the module id
- * in which a function was imported */
- // XXX deprecated (will need to be moved to module object)
- require.xNarwhalCurryId = function (callback) {
- var curried = function () {
- return callback.apply(
- this,
- [baseId].concat(Array.prototype.slice.call(arguments))
- );
- };
- curried.curryId = callback;
- return curried;
- };
- return require;
- };
-
- sandbox.force = function (id) {
- return sandbox(id, '', true);
- };
-
- sandbox.main = function (id) {
- mainId = id;
- return sandbox(id);
- };
-
- sandbox.loader = loader;
- sandbox.system = system;
- sandbox.paths = loader.paths;
- sandbox.extensions = loader.extensions;
- sandbox.debug = debug;
-
- return sandbox;
-};
-
-exports.PrefixLoader = function (prefix, loader) {
- var self = this || {};
-
- self.resolve = function (id, baseId) {
- return loader.resolve(id, baseId);
- };
-
- /**** evaluate
- */
- self.evaluate = function (text, topId) {
- return loader.evaluate(text, prefix + topId);
- };
-
- /**** fetch
- */
- self.fetch = function (topId) {
- return loader.fetch(prefix + topId);
- };
-
- /**** load
- */
- self.load = function (topId) {
- return loader.load(prefix + topId);
- };
-
- return self;
-};
-
-exports.sandbox = function(main, system, options) {
- options = options || {};
- var prefix = options['prefix'];
- var loader = options['loader'] || require.loader;
- var modules = options['modules'] || {};
- var print = options['print'];
- var debug = options['debug'];
- if (!loader) throw new Error(
- "sandbox cannot operate without a loader, either explicitly " +
- "provided as an option, or implicitly provided by the current " +
- "sandbox's 'loader' object."
- );
- if (prefix)
- loader = exports.PrefixLoader(prefix, loader);
- var sandbox = exports.Sandbox({
- modules: modules,
- loader: loader,
- system: system,
- print: print,
- debug: debug
- });
- return sandbox.main(main);
-};
-
-exports.resolve = function (id, baseId) {
- if (typeof id != "string")
- throw new Error("module id '" + id + "' is not a String");
- if (id.charAt(0) == ".") {
- id = system.fs.dirname(baseId) + "/" + id;
- }
- return system.fs.normal(id);
-};
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