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Actors
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| { | |
| "uuid": "a841f9a8-2141-43e3-85f2-3df8a44478b5", | |
| "description": "Actors", | |
| "dependencies": {}, | |
| "operatorOverloading": true | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <style> | |
| /* STYLE-MARKER */ | |
| </style> | |
| <!-- SCRIPTS-MARKER --> | |
| </head> | |
| <body> | |
| <script> | |
| // CODE-MARKER | |
| </script> | |
| </body> | |
| </html> |
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| interface Actor { | |
| behavior(message: Message): Message; | |
| } | |
| interface Message { | |
| type: string; | |
| } | |
| interface Deposit extends Message { | |
| amount: number; | |
| } | |
| function invokeAsync(callback) { | |
| setTimeout(callback, 0); | |
| } | |
| /** | |
| * Use this to send a message asynchronously to an object. | |
| */ | |
| function send(target: Actor, message: Message, callback: (err, message?: Message) => void) { | |
| invokeAsync(function() { | |
| try { | |
| var response = target.behavior(message); | |
| callback(void 0, response) | |
| } | |
| catch(e) { | |
| callback(e) | |
| } | |
| }) | |
| } | |
| class Account implements Actor { | |
| private balance = 0; | |
| behavior(message: Message): Message { | |
| if (message.type === 'deposit') { | |
| this.balance += message['amount']; | |
| return { | |
| type: 'balance', | |
| value: this.balance | |
| }; | |
| } | |
| else { | |
| throw new Error("Don't know how to handle " + message.type); | |
| } | |
| } | |
| } | |
| var account = new Account(); | |
| send(account, {type: 'deposit', amount: 100}, function(err, data) { | |
| if (!err) { | |
| console.log(JSON.stringify(data)) | |
| } | |
| else { | |
| console.log(err) | |
| } | |
| }); | |
| send(account, {type: 'deposit', amount: 50}, function(err, data) { | |
| if (!err) { | |
| console.log(JSON.stringify(data)) | |
| } | |
| else { | |
| console.log(err) | |
| } | |
| }) |
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| // |
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