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https://issues.apache.org/jira/browse/THRIFT-3122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14530260#comment-14530260
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ASF GitHub Bot commented on THRIFT-3122:
----------------------------------------

Github user henrique commented on the pull request:

    https://github.com/apache/thrift/pull/476#issuecomment-99401213
  
    Thanks for fixing it Igor but the acceptance tests "make cross" fail here:
    https://travis-ci.org/apache/thrift/jobs/61195454#L5395


> 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
>
> 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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