| 1 | "use strict";
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| 2 | module.exports =
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| 3 | function(Promise, INTERNAL, tryConvertToPromise, apiRejection, debug) {
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| 4 | var util = require("./util");
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| 5 | var tryCatch = util.tryCatch;
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| 6 |
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| 7 | Promise.method = function (fn) {
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| 8 | if (typeof fn !== "function") {
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| 9 | throw new Promise.TypeError("expecting a function but got " + util.classString(fn));
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| 10 | }
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| 11 | return function () {
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| 12 | var ret = new Promise(INTERNAL);
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| 13 | ret._captureStackTrace();
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| 14 | ret._pushContext();
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| 15 | var value = tryCatch(fn).apply(this, arguments);
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| 16 | var promiseCreated = ret._popContext();
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| 17 | debug.checkForgottenReturns(
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| 18 | value, promiseCreated, "Promise.method", ret);
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| 19 | ret._resolveFromSyncValue(value);
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| 20 | return ret;
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| 21 | };
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| 22 | };
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| 23 |
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| 24 | Promise.attempt = Promise["try"] = function (fn) {
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| 25 | if (typeof fn !== "function") {
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| 26 | return apiRejection("expecting a function but got " + util.classString(fn));
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| 27 | }
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| 28 | var ret = new Promise(INTERNAL);
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| 29 | ret._captureStackTrace();
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| 30 | ret._pushContext();
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| 31 | var value;
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| 32 | if (arguments.length > 1) {
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| 33 | debug.deprecated("calling Promise.try with more than 1 argument");
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| 34 | var arg = arguments[1];
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| 35 | var ctx = arguments[2];
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| 36 | value = util.isArray(arg) ? tryCatch(fn).apply(ctx, arg)
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| 37 | : tryCatch(fn).call(ctx, arg);
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| 38 | } else {
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| 39 | value = tryCatch(fn)();
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| 40 | }
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| 41 | var promiseCreated = ret._popContext();
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| 42 | debug.checkForgottenReturns(
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| 43 | value, promiseCreated, "Promise.try", ret);
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| 44 | ret._resolveFromSyncValue(value);
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| 45 | return ret;
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| 46 | };
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| 47 |
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| 48 | Promise.prototype._resolveFromSyncValue = function (value) {
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| 49 | if (value === util.errorObj) {
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| 50 | this._rejectCallback(value.e, false);
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| 51 | } else {
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| 52 | this._resolveCallback(value, true);
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| 53 | }
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| 54 | };
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| 55 | };
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