CODEWITHSUNDEEP
protocol-buffersprotobuf-c
Laine
Laine

Reputation: 179

import proto in another library

I am developing a c++ library B which depends on another library A. The two libray both use protobuf to define message objects

For example, 

// A.proto in library `A
package libA;
message ObjA {...}

And I want to use it in library B

// B.proto in library `B`
import A.proto  // ??? is this right ???
message ObjB {
    ObjA obj_a=1;
}

If I just copy A.proto into current library B, duplicated classes for ObjA will be created.

But if I didn't copy A.proto, how could I use message ObjA in message ObjB ?

Upvotes: 1

Views: 1170

Answers (1)

Bart
Bart

Reputation: 1580

What you can do is add the search path for protoc to the directory in which A.proto is located:

protoc -I=DIR_WITH_A B.proto

Also you can write the relative dir with the import statement in B.proto:

// B.proto in library `B`
import "SOME_DIR/A.proto";
message ObjB {
    ObjA obj_a=1;
}

Upvotes: 1

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