source: Dev/trunk/src/client/dojo/node.js @ 493

define(["./has"], function(has){
        if(!has("host-node")){
                throw new Error("node plugin failed to load because environment is not Node.js");
        }

        var pathUtil;
        if(require.nodeRequire){
                pathUtil = require.nodeRequire("path");
        }else{
                throw new Error("node plugin failed to load because it cannot find the original Node.js require");
        }

        return {
                // summary:
                //              This AMD plugin module allows native Node.js modules to be loaded by AMD modules using the Dojo
                //              loader. Note that this plugin will not work with AMD loaders other than the Dojo loader.
                // example:
                //      |       require(["dojo/node!fs"], function(fs){
                //      |               var fileData = fs.readFileSync("foo.txt", "utf-8");
                //      |       });

                load: function(/*string*/ id, /*Function*/ require, /*Function*/ load){
                        // summary:
                        //              Standard AMD plugin interface. See https://github.com/amdjs/amdjs-api/wiki/Loader-Plugins
                        //              for information.

                        if(!require.nodeRequire){
                                throw new Error("Cannot find native require function");
                        }

                        load((function(id, require){
                                var oldDefine = define,
                                        result;

                                // Some modules may attempt to detect an AMD loader via define and define.amd.  This can cause issues
                                // when other CommonJS modules attempt to load them via the standard node require().  If define is
                                // temporarily moved into another variable, it will prevent modules from detecting AMD in this fashion.
                                define = undefined;

                                try{
                                        result = require(id);
                                }finally{
                                        define = oldDefine;
                                }
                                return result;
                        })(id, require.nodeRequire));
                },

                normalize: function (/**string*/ id, /*Function*/ normalize){
                        // summary:
                        //              Produces a normalized id to be used by node.  Relative ids are resolved relative to the requesting
                        //              module's location in the file system and will return an id with path separators appropriate for the
                        //              local file system.

                        if(id.charAt(0) === "."){
                                // dirname of the reference module - normalized to match the local file system
                                var referenceModuleDirname = require.toUrl(normalize(".")).replace("/", pathUtil.sep),
                                        segments = id.split("/");
                                segments.unshift(referenceModuleDirname);
                                // this will produce an absolute path normalized to the semantics of the underlying file system.
                                id = pathUtil.join.apply(pathUtil, segments);
                        }

                        return id;
                }
        };
});