Shorthand method definition fails to serialize and eval property

Reproduisez le problème avec l’appel à serialize-javascript montré dans le rapport, en vous concentrant sur la sortie de la méthode abrégée fn3. Comparez sa forme sérialisée avec fn1 et fn2, puis évaluez le résultat pour confirmer que l’erreur de syntaxe a disparu. C’est terminé lorsque les méthodes abrégées sont sérialisées en JavaScript valide et évaluable, tout en conservant le nom de la méthode.

*properly

When using shorthand to define a function as a method in an object literal, serialization assigns a named function expression, which fails to evaluate.

$ var testSer = {  fn1: function(a) { console.log(a); return this; }, fn2: (d) => { console.log(d); return this; }, fn3(r) { console.log(r); return this; } };

Validate the functions first:

 test 1
{ fn1: [Function], fn2: [Function], fn3: [Function: fn3] }

$ testSer.fn2('test 2')

test 2
<context>

$ testSer.fn3('test 3')

test 3
{ fn1: [Function], fn2: [Function], fn3: [Function: fn3] }

Do the serialization:

$ ca
'{"fn1":function (a) { console.log(a); return this; },"fn2":(d) => { console.log(d); return this; },"fn3":fn3(r) { console.log(r); return this;  }}'

Note how it has created a "fn3" entry as a named function, but has neglected to add the function keyword.

Now try to eval:

$ var c = eval('('+ca+')');

SyntaxError: Unexpected token {
  at repl:1:20
  at REPLServer.defaultEval (repl.js:262:27)
  at bound (domain.js:287:14)
  at REPLServer.runBound [as eval] (domain.js:300:12)
  at REPLServer.<anonymous> (repl.js:431:12)
  at emitOne (events.js:82:20)
  at REPLServer.emit (events.js:169:7)
  at REPLServer.Interface._onLine (readline.js:211:10)
  at REPLServer.Interface._line (readline.js:550:8)
  at REPLServer.Interface._ttyWrite (readline.js:827:14)
  at ReadStream.onkeypress (readline.js:106:10)
  at emitTwo (events.js:87:13)
  at ReadStream.emit (events.js:172:7)
  at emitKeys (readline.js:1251:14)
  at next (native)
  at ReadStream.onData (readline.js:919:36)
  at emitOne (events.js:77:13)
  at ReadStream.emit (events.js:169:7)
  at readableAddChunk (_stream_readable.js:153:18)
  at ReadStream.Readable.push (_stream_readable.js:111:10)
  at TTY.onread (net.js:531:20)

All it needs to do is add the function keyword:

'{"fn1":function (a) { console.log(a); return this; },"fn2":(d) => { console.log(d); return this; },"fn3": function fn3(r) { console.log(r); return this;  }}'

Node version:

$ node -v
  v4.4.3