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node_modules/natives/README.md

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+# natives
+
+Do stuff with Node.js's native JavaScript modules
+
+## Caveat
+
+Dear Beloved User,
+
+I feel compelled to give you a word of warning if you are considering
+using this module.
+
+This module lets you do some creative things with the JavaScript code
+in Node.js.  There are some things here that are basically a recipe
+for memory leaks, or at the very least, being broken with each new
+release of Node, since none of these API surfaces are "technically"
+"supported" by the team managing the Node.js project.
+
+This module does not ship a _copy_ of Node's internals.  It does its
+thing by using the exposed source code that lives in Node.js itself.
+So, running this on different versions of Node.js will produce
+different results.
+
+When your program is broken by changes to Node's internals, or when
+Node changes in such a way that this module becomes fundamentally
+broken, you will likely get little sympathy.  Many people in the Node
+community consider this sort of behavior to be unwise and unseemly, if
+not outright hostile and morally wrong.
+
+At the very least, you probably just want to run Node with the
+(undocumented!) `--expose-internals` flag, rather than go to such
+lengths.
+
+Don't use unless you know what you're doing, or at least, are ok with
+the risks.  Don't say I didn't warn you.
+
+Eternally Yours in OSS,  
+Isaac Z. Schlueter
+
+## USAGE
+
+```javascript
+var natives = require('natives')
+
+// get the source code
+var fsCode = natives.source('fs')
+
+// get a evaluated copy of the module
+var fsCopy = natives.require('fs')
+
+// you can pass in a whitelist to NOT shim certain things
+var fsCopyWithNativeStreams = natives.require('fs', ['stream'])
+
+// note that this is not the same as the "real" fs
+assert(fsCopy !== require('fs'))
+
+// but it does have all the same entries
+fsCopy.readFileSync(__filename, 'utf8') // etc
+```
+
+## Another Caveat
+
+You can't use this to override `require("buffer")` because everything
+depends on `Buffer.isBuffer` working properly, so it's important for
+that one to be given a pass.

node_modules/natives/index.js

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+var natives = process.binding('natives')
+var module = require('module')
+var normalRequire = require
+exports.source = src
+exports.require = req
+var vm = require('vm')
+
+// fallback for 0.x support
+var runInThisContext, ContextifyScript, Script
+/*istanbul ignore next*/
+try {
+  ContextifyScript = process.binding('contextify').ContextifyScript;
+  runInThisContext = function runInThisContext(code, options) {
+    var script = new ContextifyScript(code, options);
+    return script.runInThisContext();
+  }
+} catch (er) {
+  Script = process.binding('evals').NodeScript;
+  runInThisContext = Script.runInThisContext;
+}
+
+var wrap = [
+  '(function (exports, require, module, __filename, __dirname) { ',
+  '\n});'
+];
+
+
+// Basically the same functionality as node's (buried deep)
+// NativeModule class, but without caching, or internal/ blocking,
+// or a class, since that's not really necessary.  I assume that if
+// you're loading something with this module, it's because you WANT
+// a separate copy.  However, to preserve semantics, any require()
+// calls made throughout the internal module load IS cached.
+function req (id, whitelist) {
+  var cache = Object.create(null)
+
+  if (Array.isArray(whitelist)) {
+    // a whitelist of things to pull from the "actual" native modules
+    whitelist.forEach(function (id) {
+      cache[id] = {
+        loading: false,
+        loaded: true,
+        filename: id + '.js',
+        exports: require(id)
+      }
+    })
+  }
+
+  return req_(id, cache)
+}
+
+function req_ (id, cache) {
+  // Buffer is special, because it's a type rather than a "normal"
+  // class, and many things depend on `Buffer.isBuffer` working.
+  if (id === 'buffer') {
+    return require('buffer')
+  }
+
+  // native_module isn't actually a natives binding.
+  // weird, right?
+  if (id === 'native_module') {
+    return {
+      getSource: src,
+      wrap: function (script) {
+        return wrap[0] + script + wrap[1]
+      },
+      wrapper: wrap,
+      _cache: cache
+    }
+  }
+
+  var source = src(id)
+  if (!source) {
+    return undefined
+  }
+  source = wrap[0] + source + wrap[1]
+
+  var cachingRequire = function require (id) {
+    if (cache[id]) {
+      return cache[id].exports
+    }
+    return req_(id, cache)
+  }
+
+  var nm = {
+    exports: {},
+    loading: true,
+    loaded: false,
+    filename: id + '.js'
+  }
+  cache[id] = nm
+  var fn
+  try {
+    /* istanbul ignore else */
+    if (ContextifyScript) {
+      fn = runInThisContext(source, {
+        filename: nm.filename,
+        lineOffset: 0,
+        displayErrors: true
+      });
+    } else {
+      fn = runInThisContext(source, nm.filename, true);
+    }
+    fn(nm.exports, cachingRequire, nm, nm.filename)
+    nm.loaded = true
+  } finally {
+    nm.loading = false
+  }
+
+  return nm.exports
+}
+
+function src (id) {
+  return natives[id]
+}

node_modules/natives/package.json

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+{
+  "_args": [
+    [
+      {
+        "raw": "natives@^1.1.0",
+        "scope": null,
+        "escapedName": "natives",
+        "name": "natives",
+        "rawSpec": "^1.1.0",
+        "spec": ">=1.1.0 <2.0.0",
+        "type": "range"
+      },
+      "D:\\web\\layui\\res\\layui\\node_modules\\graceful-fs"
+    ]
+  ],
+  "_from": "natives@>=1.1.0 <2.0.0",
+  "_id": "natives@1.1.0",
+  "_inCache": true,
+  "_location": "/natives",
+  "_nodeVersion": "6.5.0",
+  "_npmOperationalInternal": {
+    "host": "packages-16-east.internal.npmjs.com",
+    "tmp": "tmp/natives-1.1.0.tgz_1472583645072_0.9239758928306401"
+  },
+  "_npmUser": {
+    "name": "isaacs",
+    "email": "i@izs.me"
+  },
+  "_npmVersion": "3.10.7",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "natives@^1.1.0",
+    "scope": null,
+    "escapedName": "natives",
+    "name": "natives",
+    "rawSpec": "^1.1.0",
+    "spec": ">=1.1.0 <2.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/graceful-fs"
+  ],
+  "_resolved": "https://registry.npmjs.org/natives/-/natives-1.1.0.tgz",
+  "_shasum": "e9ff841418a6b2ec7a495e939984f78f163e6e31",
+  "_shrinkwrap": null,
+  "_spec": "natives@^1.1.0",
+  "_where": "D:\\web\\layui\\res\\layui\\node_modules\\graceful-fs",
+  "author": {
+    "name": "Isaac Z. Schlueter",
+    "email": "i@izs.me",
+    "url": "http://blog.izs.me/"
+  },
+  "bugs": {
+    "url": "https://github.com/isaacs/natives/issues"
+  },
+  "dependencies": {},
+  "description": "Do stuff with Node.js's native JavaScript modules",
+  "devDependencies": {
+    "tap": "^7.0.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "e9ff841418a6b2ec7a495e939984f78f163e6e31",
+    "tarball": "https://registry.npmjs.org/natives/-/natives-1.1.0.tgz"
+  },
+  "files": [
+    "index.js"
+  ],
+  "gitHead": "dc1297cdce008350b679dbb86be5bf5bbf8cacbf",
+  "homepage": "https://github.com/isaacs/natives#readme",
+  "license": "ISC",
+  "main": "index.js",
+  "maintainers": [
+    {
+      "name": "isaacs",
+      "email": "i@izs.me"
+    }
+  ],
+  "name": "natives",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/isaacs/natives.git"
+  },
+  "scripts": {
+    "test": "tap test/*.js --100"
+  },
+  "version": "1.1.0"
+}