diff options
Diffstat (limited to 'tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/object/create.js')
-rw-r--r-- | tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/object/create.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/object/create.js b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/object/create.js new file mode 100644 index 0000000000..f813b4661c --- /dev/null +++ b/tools/eslint/node_modules/escope/node_modules/es6-map/node_modules/es5-ext/object/create.js @@ -0,0 +1,36 @@ +// Workaround for http://code.google.com/p/v8/issues/detail?id=2804 + +'use strict'; + +var create = Object.create, shim; + +if (!require('./set-prototype-of/is-implemented')()) { + shim = require('./set-prototype-of/shim'); +} + +module.exports = (function () { + var nullObject, props, desc; + if (!shim) return create; + if (shim.level !== 1) return create; + + nullObject = {}; + props = {}; + desc = { configurable: false, enumerable: false, writable: true, + value: undefined }; + Object.getOwnPropertyNames(Object.prototype).forEach(function (name) { + if (name === '__proto__') { + props[name] = { configurable: true, enumerable: false, writable: true, + value: undefined }; + return; + } + props[name] = desc; + }); + Object.defineProperties(nullObject, props); + + Object.defineProperty(shim, 'nullPolyfill', { configurable: false, + enumerable: false, writable: false, value: nullObject }); + + return function (prototype, props) { + return create((prototype === null) ? nullObject : prototype, props); + }; +}()); |