Extend Object prototype for message instances #618
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jcready
reviewed
Mar 8, 2024
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@erichiggins0, CI was failing because of an issue with go. Pushed up #636 to your fork. |
timostamm
approved these changes
Mar 13, 2024
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Released in v2.9.4 |
This was referenced May 24, 2024
This was referenced Aug 10, 2024
This was referenced Sep 10, 2024
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After #582, message instances don't behave exactly like simple objects, as their prototype only includes a
Symbol("protobuf-ts/message-type")field and is missing fields normally present in a simple object (e.g.constructor). For us, this specifically causes an issue when using mobx to observe changes to message instances - it only allows observing objects that have aconstructormethod in their prototype that matches the method for simple objects.This fixes the problem by copying the default object prototype and adding a
Symbol("protobuf-ts/message-type")field, rather than starting from an empty prototype.