End-to-end compile of FederatedMeetup.speckdl (with the cycle-65
Transition envelope added) surfaced a real bug: the speckdl uses
default-value syntax on event fields:
initial_mesh_peers: List<InitialMeshPeer> = []
The default is a Speckl semantic — a state-machine init value —
but the .proto wire format has no place for it. Without stripping,
the type expression 'List<InitialMeshPeer> = []' was emitted
verbatim as the field type, producing broken proto3 syntax that
protoc rejected.
Fix: parseEventBlockMultiline now strips '= <expr>' suffix from
the type expression before calling parseTypeExpr. The default value
is dropped (it's a Speckl semantic only; the wire format carries
no default).
Tests: 1 new parser test covers the federated-meetup
'initial_mesh_peers: List<InitialMeshPeer> = []' shape. All 56
tests pass (55 baseline + 1 new). tsc build clean.
End-to-end verified: with this fix and the cycle-65 federated-
meetup speckdl changes, the Speckl-generated .proto now compiles
cleanly with 'protoc' (previously rejected).
7beaf6f3cc