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Diffstat (limited to 'deps/npm/node_modules/es6-promisify/dist/promise.js')
-rw-r--r-- | deps/npm/node_modules/es6-promisify/dist/promise.js | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/deps/npm/node_modules/es6-promisify/dist/promise.js b/deps/npm/node_modules/es6-promisify/dist/promise.js new file mode 100644 index 0000000000..2fe5c6103b --- /dev/null +++ b/deps/npm/node_modules/es6-promisify/dist/promise.js @@ -0,0 +1,73 @@ +"use strict"; + +/* global self, window, module, global, require */ +module.exports = function () { + + "use strict"; + + var globalObject = void 0; + + function isFunction(x) { + return typeof x === "function"; + } + + // Seek the global object + if (global !== undefined) { + globalObject = global; + } else if (window !== undefined && window.document) { + globalObject = window; + } else { + globalObject = self; + } + + // Test for any native promise implementation, and if that + // implementation appears to conform to the specificaton. + // This code mostly nicked from the es6-promise module polyfill + // and then fooled with. + var hasPromiseSupport = function () { + + // No promise object at all, and it's a non-starter + if (!globalObject.hasOwnProperty("Promise")) { + return false; + } + + // There is a Promise object. Does it conform to the spec? + var P = globalObject.Promise; + + // Some of these methods are missing from + // Firefox/Chrome experimental implementations + if (!P.hasOwnProperty("resolve") || !P.hasOwnProperty("reject")) { + return false; + } + + if (!P.hasOwnProperty("all") || !P.hasOwnProperty("race")) { + return false; + } + + // Older version of the spec had a resolver object + // as the arg rather than a function + return function () { + + var resolve = void 0; + + var p = new globalObject.Promise(function (r) { + resolve = r; + }); + + if (p) { + return isFunction(resolve); + } + + return false; + }(); + }(); + + // Export the native Promise implementation if it + // looks like it matches the spec + if (hasPromiseSupport) { + return globalObject.Promise; + } + + // Otherwise, return the es6-promise polyfill by @jaffathecake. + return require("es6-promise").Promise; +}();
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