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47 lines
1.4 KiB
47 lines
1.4 KiB
3 years ago
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"use strict";
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module.exports = function(Promise) {
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function returner() {
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return this.value;
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}
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function thrower() {
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throw this.reason;
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}
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Promise.prototype["return"] =
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Promise.prototype.thenReturn = function (value) {
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if (value instanceof Promise) value.suppressUnhandledRejections();
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return this._then(
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returner, undefined, undefined, {value: value}, undefined);
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};
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Promise.prototype["throw"] =
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Promise.prototype.thenThrow = function (reason) {
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return this._then(
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thrower, undefined, undefined, {reason: reason}, undefined);
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};
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Promise.prototype.catchThrow = function (reason) {
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if (arguments.length <= 1) {
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return this._then(
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undefined, thrower, undefined, {reason: reason}, undefined);
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} else {
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var _reason = arguments[1];
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var handler = function() {throw _reason;};
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return this.caught(reason, handler);
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}
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};
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Promise.prototype.catchReturn = function (value) {
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if (arguments.length <= 1) {
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if (value instanceof Promise) value.suppressUnhandledRejections();
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return this._then(
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undefined, returner, undefined, {value: value}, undefined);
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} else {
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var _value = arguments[1];
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if (_value instanceof Promise) _value.suppressUnhandledRejections();
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var handler = function() {return _value;};
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return this.caught(value, handler);
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}
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};
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};
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