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Diffstat (limited to 'tools/node_modules/source-map/build/mini-require.js')
-rw-r--r-- | tools/node_modules/source-map/build/mini-require.js | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/tools/node_modules/source-map/build/mini-require.js b/tools/node_modules/source-map/build/mini-require.js new file mode 100644 index 00000000..0daf4537 --- /dev/null +++ b/tools/node_modules/source-map/build/mini-require.js @@ -0,0 +1,152 @@ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +/** + * Define a module along with a payload. + * @param {string} moduleName Name for the payload + * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec + * @param {function} payload Function with (require, exports, module) params + */ +function define(moduleName, deps, payload) { + if (typeof moduleName != "string") { + throw new TypeError('Expected string, got: ' + moduleName); + } + + if (arguments.length == 2) { + payload = deps; + } + + if (moduleName in define.modules) { + throw new Error("Module already defined: " + moduleName); + } + define.modules[moduleName] = payload; +}; + +/** + * The global store of un-instantiated modules + */ +define.modules = {}; + + +/** + * We invoke require() in the context of a Domain so we can have multiple + * sets of modules running separate from each other. + * This contrasts with JSMs which are singletons, Domains allows us to + * optionally load a CommonJS module twice with separate data each time. + * Perhaps you want 2 command lines with a different set of commands in each, + * for example. + */ +function Domain() { + this.modules = {}; + this._currentModule = null; +} + +(function () { + + /** + * Lookup module names and resolve them by calling the definition function if + * needed. + * There are 2 ways to call this, either with an array of dependencies and a + * callback to call when the dependencies are found (which can happen + * asynchronously in an in-page context) or with a single string an no callback + * where the dependency is resolved synchronously and returned. + * The API is designed to be compatible with the CommonJS AMD spec and + * RequireJS. + * @param {string[]|string} deps A name, or names for the payload + * @param {function|undefined} callback Function to call when the dependencies + * are resolved + * @return {undefined|object} The module required or undefined for + * array/callback method + */ + Domain.prototype.require = function(deps, callback) { + if (Array.isArray(deps)) { + var params = deps.map(function(dep) { + return this.lookup(dep); + }, this); + if (callback) { + callback.apply(null, params); + } + return undefined; + } + else { + return this.lookup(deps); + } + }; + + function normalize(path) { + var bits = path.split('/'); + var i = 1; + while (i < bits.length) { + if (bits[i] === '..') { + bits.splice(i-1, 1); + } else if (bits[i] === '.') { + bits.splice(i, 1); + } else { + i++; + } + } + return bits.join('/'); + } + + function join(a, b) { + a = a.trim(); + b = b.trim(); + if (/^\//.test(b)) { + return b; + } else { + return a.replace(/\/*$/, '/') + b; + } + } + + function dirname(path) { + var bits = path.split('/'); + bits.pop(); + return bits.join('/'); + } + + /** + * Lookup module names and resolve them by calling the definition function if + * needed. + * @param {string} moduleName A name for the payload to lookup + * @return {object} The module specified by aModuleName or null if not found. + */ + Domain.prototype.lookup = function(moduleName) { + if (/^\./.test(moduleName)) { + moduleName = normalize(join(dirname(this._currentModule), moduleName)); + } + + if (moduleName in this.modules) { + var module = this.modules[moduleName]; + return module; + } + + if (!(moduleName in define.modules)) { + throw new Error("Module not defined: " + moduleName); + } + + var module = define.modules[moduleName]; + + if (typeof module == "function") { + var exports = {}; + var previousModule = this._currentModule; + this._currentModule = moduleName; + module(this.require.bind(this), exports, { id: moduleName, uri: "" }); + this._currentModule = previousModule; + module = exports; + } + + // cache the resulting module object for next time + this.modules[moduleName] = module; + + return module; + }; + +}()); + +define.Domain = Domain; +define.globalDomain = new Domain(); +var require = define.globalDomain.require.bind(define.globalDomain); |