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https://issues.apache.org/jira/browse/THRIFT-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12624849#action_12624849
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Alexander Shigin commented on THRIFT-122:
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It seems really hard to implement for C++. In the case of heterogeneous list,
every thrift type must be a child of some TAbstractClass: int, float and bool.
It also breaks backward compatible: it makes to change binary and dense
protocol.
I do not see any advantages of heterogeneous collections for protocol like
thrift.
> Allow heterogeneous collections
> -------------------------------
>
> Key: THRIFT-122
> URL: https://issues.apache.org/jira/browse/THRIFT-122
> Project: Thrift
> Issue Type: New Feature
> Reporter: Noble Paul
>
> Currently thrift only supports homogeneous collections . But , that is very
> restrictive for many languages which allows heterogeneous collections
> implementation details
> the IDL can allow syntax
> {code}
> list<?>
> set<?>
> map<?,?>
> map<?,the-type>
> map<the-type,?>
> {code}
> While writing down data use a type modifier to say whether key (1), value(2)
> or both(3) are wild cards
> for a List/Set use a type modifier 1 to specify that it is heterogeneous
> If it is a homogeneous collection do it the way it is done now.
> Or else
> add type information just before the data. So it adds an extra byte/element
> For ma
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