PB.Schema.Projection (PB v0.1.0)

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Compiled projection metadata attached to a message in the schema.

Projections drive message-level adapters, struct representations, identity oneofs, and unwrapped single-field messages. The projection for a given message is exposed on %PB.Schema.Info.Message{}.projection.

Projections are configured at compile time via the :projections option on PB.compile/2 and use PB.Schema (or in proto source via the elixir.pb.v1 custom options). The struct itself is the resolved, post-merge form — callers should treat it as read-only.

Summary

Types

t()

Types

t()

@type t() :: %PB.Schema.Projection{
  adapter: PB.Adapter.t() | nil,
  extensions: :reject | {:field, atom()} | nil,
  oneofs: %{required(atom()) => :identity},
  preserved_unknown_fields: :drop | :reject | {:field, atom()} | nil,
  struct_mod: module() | nil,
  unwrap_field: atom() | nil
}