Version 1

[yaffs-website] / node_modules / bluebird / js / release / thenables.js

diff --git a/node_modules/bluebird/js/release/thenables.js b/node_modules/bluebird/js/release/thenables.js
new file mode 100644 (file)
index 0000000..a04fdde
--- /dev/null
+++ b/node_modules/bluebird/js/release/thenables.js
@@ -0,0 +1,82 @@
+"use strict";
+module.exports = function(Promise, INTERNAL) {
+var util = require("./util");
+var errorObj = util.errorObj;
+var isObject = util.isObject;
+
+function tryConvertToPromise(obj, context) {
+    if (isObject(obj)) {
+        if (obj instanceof Promise) return obj;
+        var then = getThen(obj);
+        if (then === errorObj) {
+            if (context) context._pushContext();
+            var ret = Promise.reject(then.e);
+            if (context) context._popContext();
+            return ret;
+        } else if (typeof then === "function") {
+            if (isAnyBluebirdPromise(obj)) {
+                var ret = new Promise(INTERNAL);
+                obj._then(
+                    ret._fulfill,
+                    ret._reject,
+                    undefined,
+                    ret,
+                    null
+                );
+                return ret;
+            }
+            return doThenable(obj, then, context);
+        }
+    }
+    return obj;
+}
+
+function doGetThen(obj) {
+    return obj.then;
+}
+
+function getThen(obj) {
+    try {
+        return doGetThen(obj);
+    } catch (e) {
+        errorObj.e = e;
+        return errorObj;
+    }
+}
+
+var hasProp = {}.hasOwnProperty;
+function isAnyBluebirdPromise(obj) {
+    return hasProp.call(obj, "_promise0");
+}
+
+function doThenable(x, then, context) {
+    var promise = new Promise(INTERNAL);
+    var ret = promise;
+    if (context) context._pushContext();
+    promise._captureStackTrace();
+    if (context) context._popContext();
+    var synchronous = true;
+    var result = util.tryCatch(then).call(x, resolve, reject);
+    synchronous = false;
+
+    if (promise && result === errorObj) {
+        promise._rejectCallback(result.e, true, true);
+        promise = null;
+    }
+
+    function resolve(value) {
+        if (!promise) return;
+        promise._resolveCallback(value);
+        promise = null;
+    }
+
+    function reject(reason) {
+        if (!promise) return;
+        promise._rejectCallback(reason, synchronous, true);
+        promise = null;
+    }
+    return ret;
+}
+
+return tryConvertToPromise;
+};