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https://issues.apache.org/jira/browse/THRIFT-3325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jake Farrell updated THRIFT-3325:
---------------------------------
Component/s: Cocoa - Library
> Extended services aren't subclasses in generated Cocoa
> ------------------------------------------------------
>
> Key: THRIFT-3325
> URL: https://issues.apache.org/jira/browse/THRIFT-3325
> Project: Thrift
> Issue Type: Bug
> Components: Cocoa - Library
> Reporter: Ryan Joseph
> Priority: Critical
>
> The following interface definition:
> {noformat}
> service Parent {
> string name();
> }
> service Child extends Parent {
> i32 age();
> }
> {noformat}
> Produces the following generated Cocoa (truncated for readability):
> {noformat}
> @protocol Parent <NSObject>
> - (NSString *) name; // throws TException
> @end
> // ...
> @protocol Child <NSObject>
> - (int32_t) age; // throws TException
> @end
> @interface ChildClient : NSObject <Child> {
> id <TProtocol> inProtocol;
> id <TProtocol> outProtocol;
> }
> - (id) initWithProtocol: (id <TProtocol>) protocol;
> - (id) initWithInProtocol: (id <TProtocol>) inProtocol outProtocol: (id
> <TProtocol>) outProtocol;
> @end
> {noformat}
> With these definitions, an instance of "Child" knows nothing of nor can ever
> have superclass method {{name()}} called on it. This completely breaks not
> only polymorphism, but the use of the "extends" keyword when generating Cocoa.
> This could be easily resolved by simply having the "Child" class also conform
> to the "Parent" protocol, or more-correctly resolved by making "Child" an
> actual subclass of "Parent".
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