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https://issues.apache.org/jira/browse/THRIFT-3122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14564771#comment-14564771
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ASF GitHub Bot commented on THRIFT-3122:
----------------------------------------

Github user itkach commented on the pull request:

    https://github.com/apache/thrift/pull/476#issuecomment-106797978
  
    Relevant error is
    
    ```
    Error: Cannot find module './gen-nodejs/JsDeepConstructorTest_types'
        at Function.Module._resolveFilename (module.js:338:15)
        at Function.Module._load (module.js:280:25)
        at Module.require (module.js:364:17)
        at require (module.js:380:17)
        at Object.<anonymous> 
(/home/travis/build/henrique/thrift/lib/nodejs/test/deep-constructor.test.js:1:76)
        at Module._compile (module.js:456:26)
        at Object.Module._extensions..js (module.js:474:10)
        at Module.load (module.js:356:32)
        at Function.Module._load (module.js:312:12)
        at Function.Module.runMain (module.js:497:10)
    ```
    and
    
    
https://github.com/itkach/thrift/commit/4502c457cf523fbbc8816b40925bb006a316b808
    
    should fix it


> Javascript struct constructor should properly initialize struct and container 
> members from plain js arguments
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: THRIFT-3122
>                 URL: https://issues.apache.org/jira/browse/THRIFT-3122
>             Project: Thrift
>          Issue Type: Improvement
>          Components: JavaScript - Compiler
>            Reporter: Igor Tkach
>             Fix For: 0.9.3
>
>
> Currently constructors for struct types in generated javascript accept 
> {{args}} object and initialize struct's members by simply assigning a value 
> from corresponding {{args}} object property (if not undefined). If struct 
> member is
> another struct it must be explicitly created with constructor and passed as 
> an argument value.
> Given following definitions:
> {code}
> struct A {
>        1: string something
> }
> struct B {
>        1: A value
> }
> {code}
> this works:
> {code:javascript}
> var b1 = new B(
>   {
>     value: new A(
>       {
>         something: 'hello'
>       }
>     )
>   }
> );
> {code}
> this doesn't:
> {code:javascript}
> var b2 = new B(
>   {
>     value: {
>       something: 'hello'
>     }
>   }
> );
> {code}
> Attempt to serialize b2 will result in error because {{b2.a}} doesn't have a 
> {{write}} method.
> This becomes especially problematic when deep objects are used with libraries 
> like [Underscore.js|http://underscorejs.org/], [lodash|https://lodash.com/], 
> [React's immutability 
> helpers|https://facebook.github.io/react/docs/update.html] or 
> [Immutable.js|https://github.com/facebook/immutable-js]: most operations will 
> return or produce plain javascript objects without read/write methods even if 
> Thrift objects were given as input. Manually converting object graphs back to 
> Thrift serializable form is not workable.



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