Ensure protodesc.FileDescriptor references are sourced from the global proto registry#411
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TristonianJones merged 1 commit intoJan 29, 2021
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JimLarson
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Jan 29, 2021
| // Note: Proto reflection relies on descriptor values being object equal rather than object | ||
| // equivalence. This choice means that a FieldDescriptor generated from a FileDescriptorProto | ||
| // will be incompatible with the FieldDescriptor in the global registry and any message created | ||
| // from that global registry. |
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Document somewhere the internal constraint that the cel library must not register anything in protoregistry.GlobalFiles as doing so might violate the isolation needed by ExprService.
…l proto registry when possible
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Round-tripping from a
protoreflect.FileDescriptorto aFileDescriptorProtoand back results in aprotoreflect.FileDescriptorvalue which is incompatible with the original. This is by design. Based on this choice, allprotoreflect.FileDescriptorvalues must be checked to see if they are also defined in theprotoregistry.GlobalFilesand if so, sourced from the global proto registry rather than taken as-is.