Converting between native objective-c proto and j2cl protos

[Dennis Liang]

What's the correct way to convert between between native objective-c protos and j2cl protos (and vice versa)?

Right now I'm just taking the NSData and calling parseFromNSData. However I noticed that proto extensions are getting dropped.

[Tom Ball]

The correct way to convert between any different protobuf implementations is to serialize from one using toByteArray() and parse that result using parseFrom(). Generally, one should never assume anything about any protobuf implementation's internal data representation, and instead only rely on the common public API.

On Thu, Feb 3, 2022 at 3:05 PM 'Dennis Liang' via j2objc-discuss <j2objc-...@googlegroups.com> wrote:

What's the correct way to convert between between native objective-c protos and j2cl protos (and vice versa)?

Right now I'm just taking the NSData and calling parseFromNSData. However I noticed that proto extensions are getting dropped.

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[Dennis Liang]

Yeah, that is what I used [J2CLProto parseFrom:objcProto.data], but it caused the extension fields to be dropped.

Anyways I think figured it out, I ended up using [J2CLProto parseFromNSData:registry:] call and that seems to have worked.

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[Tom Ball]

Sounds good. BTW, why are you asking questions about J2CL on j2objc-discuss? That's why you got the generic answer from me. :-)

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[Dennis Liang]

Sorry my mistake, I meant J2objc. 

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[Tom Ball]

No worries, the answer is the same. :-)

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