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Diffstat (limited to 'node_modules/amdefine/amdefine.js')
| -rw-r--r-- | node_modules/amdefine/amdefine.js | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/node_modules/amdefine/amdefine.js b/node_modules/amdefine/amdefine.js new file mode 100644 index 0000000..ca830ba --- /dev/null +++ b/node_modules/amdefine/amdefine.js @@ -0,0 +1,301 @@ +/** vim: et:ts=4:sw=4:sts=4 + * @license amdefine 1.0.1 Copyright (c) 2011-2016, The Dojo Foundation All Rights Reserved. + * Available via the MIT or new BSD license. + * see: http://github.com/jrburke/amdefine for details + */ + +/*jslint node: true */ +/*global module, process */ +'use strict'; + +/** + * Creates a define for node. + * @param {Object} module the "module" object that is defined by Node for the + * current module. + * @param {Function} [requireFn]. Node's require function for the current module. + * It only needs to be passed in Node versions before 0.5, when module.require + * did not exist. + * @returns {Function} a define function that is usable for the current node + * module. + */ +function amdefine(module, requireFn) { + 'use strict'; + var defineCache = {}, + loaderCache = {}, + alreadyCalled = false, + path = require('path'), + makeRequire, stringRequire; + + /** + * Trims the . and .. from an array of path segments. + * It will keep a leading path segment if a .. will become + * the first path segment, to help with module name lookups, + * which act like paths, but can be remapped. But the end result, + * all paths that use this function should look normalized. + * NOTE: this method MODIFIES the input array. + * @param {Array} ary the array of path segments. + */ + function trimDots(ary) { + var i, part; + for (i = 0; ary[i]; i+= 1) { + part = ary[i]; + if (part === '.') { + ary.splice(i, 1); + i -= 1; + } else if (part === '..') { + if (i === 1 && (ary[2] === '..' || ary[0] === '..')) { + //End of the line. Keep at least one non-dot + //path segment at the front so it can be mapped + //correctly to disk. Otherwise, there is likely + //no path mapping for a path starting with '..'. + //This can still fail, but catches the most reasonable + //uses of .. + break; + } else if (i > 0) { + ary.splice(i - 1, 2); + i -= 2; + } + } + } + } + + function normalize(name, baseName) { + var baseParts; + + //Adjust any relative paths. + if (name && name.charAt(0) === '.') { + //If have a base name, try to normalize against it, + //otherwise, assume it is a top-level require that will + //be relative to baseUrl in the end. + if (baseName) { + baseParts = baseName.split('/'); + baseParts = baseParts.slice(0, baseParts.length - 1); + baseParts = baseParts.concat(name.split('/')); + trimDots(baseParts); + name = baseParts.join('/'); + } + } + + return name; + } + + /** + * Create the normalize() function passed to a loader plugin's + * normalize method. + */ + function makeNormalize(relName) { + return function (name) { + return normalize(name, relName); + }; + } + + function makeLoad(id) { + function load(value) { + loaderCache[id] = value; + } + + load.fromText = function (id, text) { + //This one is difficult because the text can/probably uses + //define, and any relative paths and requires should be relative + //to that id was it would be found on disk. But this would require + //bootstrapping a module/require fairly deeply from node core. + //Not sure how best to go about that yet. + throw new Error('amdefine does not implement load.fromText'); + }; + + return load; + } + + makeRequire = function (systemRequire, exports, module, relId) { + function amdRequire(deps, callback) { + if (typeof deps === 'string') { + //Synchronous, single module require('') + return stringRequire(systemRequire, exports, module, deps, relId); + } else { + //Array of dependencies with a callback. + + //Convert the dependencies to modules. + deps = deps.map(function (depName) { + return stringRequire(systemRequire, exports, module, depName, relId); + }); + + //Wait for next tick to call back the require call. + if (callback) { + process.nextTick(function () { + callback.apply(null, deps); + }); + } + } + } + + amdRequire.toUrl = function (filePath) { + if (filePath.indexOf('.') === 0) { + return normalize(filePath, path.dirname(module.filename)); + } else { + return filePath; + } + }; + + return amdRequire; + }; + + //Favor explicit value, passed in if the module wants to support Node 0.4. + requireFn = requireFn || function req() { + return module.require.apply(module, arguments); + }; + + function runFactory(id, deps, factory) { + var r, e, m, result; + + if (id) { + e = loaderCache[id] = {}; + m = { + id: id, + uri: __filename, + exports: e + }; + r = makeRequire(requireFn, e, m, id); + } else { + //Only support one define call per file + if (alreadyCalled) { + throw new Error('amdefine with no module ID cannot be called more than once per file.'); + } + alreadyCalled = true; + + //Use the real variables from node + //Use module.exports for exports, since + //the exports in here is amdefine exports. + e = module.exports; + m = module; + r = makeRequire(requireFn, e, m, module.id); + } + + //If there are dependencies, they are strings, so need + //to convert them to dependency values. + if (deps) { + deps = deps.map(function (depName) { + return r(depName); + }); + } + + //Call the factory with the right dependencies. + if (typeof factory === 'function') { + result = factory.apply(m.exports, deps); + } else { + result = factory; + } + + if (result !== undefined) { + m.exports = result; + if (id) { + loaderCache[id] = m.exports; + } + } + } + + stringRequire = function (systemRequire, exports, module, id, relId) { + //Split the ID by a ! so that + var index = id.indexOf('!'), + originalId = id, + prefix, plugin; + + if (index === -1) { + id = normalize(id, relId); + + //Straight module lookup. If it is one of the special dependencies, + //deal with it, otherwise, delegate to node. + if (id === 'require') { + return makeRequire(systemRequire, exports, module, relId); + } else if (id === 'exports') { + return exports; + } else if (id === 'module') { + return module; + } else if (loaderCache.hasOwnProperty(id)) { + return loaderCache[id]; + } else if (defineCache[id]) { + runFactory.apply(null, defineCache[id]); + return loaderCache[id]; + } else { + if(systemRequire) { + return systemRequire(originalId); + } else { + throw new Error('No module with ID: ' + id); + } + } + } else { + //There is a plugin in play. + prefix = id.substring(0, index); + id = id.substring(index + 1, id.length); + + plugin = stringRequire(systemRequire, exports, module, prefix, relId); + + if (plugin.normalize) { + id = plugin.normalize(id, makeNormalize(relId)); + } else { + //Normalize the ID normally. + id = normalize(id, relId); + } + + if (loaderCache[id]) { + return loaderCache[id]; + } else { + plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {}); + + return loaderCache[id]; + } + } + }; + + //Create a define function specific to the module asking for amdefine. + function define(id, deps, factory) { + if (Array.isArray(id)) { + factory = deps; + deps = id; + id = undefined; + } else if (typeof id !== 'string') { + factory = id; + id = deps = undefined; + } + + if (deps && !Array.isArray(deps)) { + factory = deps; + deps = undefined; + } + + if (!deps) { + deps = ['require', 'exports', 'module']; + } + + //Set up properties for this module. If an ID, then use + //internal cache. If no ID, then use the external variables + //for this node module. + if (id) { + //Put the module in deep freeze until there is a + //require call for it. + defineCache[id] = [id, deps, factory]; + } else { + runFactory(id, deps, factory); + } + } + + //define.require, which has access to all the values in the + //cache. Useful for AMD modules that all have IDs in the file, + //but need to finally export a value to node based on one of those + //IDs. + define.require = function (id) { + if (loaderCache[id]) { + return loaderCache[id]; + } + + if (defineCache[id]) { + runFactory.apply(null, defineCache[id]); + return loaderCache[id]; + } + }; + + define.amd = {}; + + return define; +} + +module.exports = amdefine; |