rfw_catalog_schema 1.1.0

Public schema, annotations, wire identity, and JSON codecs for a Remote Flutter Widgets (RFW) widget catalog. Pure-Dart — used to produce, transmit, or decode catalogs.

rfw_catalog_schema

The public schema, annotations, wire-identity types, and JSON codecs for a Remote Flutter Widget (RFW) catalog.

This package describes what a catalog looks like: the durable contract shared between catalog producers (compilers, codegen builders), catalog consumers (authoring tools, SDK runtimes, backends), and any tooling that decodes or transmits an RFW-targeted widget catalog.

What this package contains

• Catalog data types. Catalog, WidgetEntry, PropertyEntry, StructuredEntry, UnionEntry, FactoryVariant, DecompositionRecipe, DesignTokenEntry, plus the enums and metadata structs they reference.
• Wire identity. WireId (kind-prefixed, library-scoped, monotonic), WireIdKind, and WireIdRef for cross-library references.
• Default-value model. DefaultValueSource sealed hierarchy (LiteralDefault, TokenRefDefault, ThemeBindingDefault, FlutterCtorDefault).
• Annotations. @RestageWidget, @RestageProperty, @RestageBuiltinLibrary, @RestageLibrary, @RestageStructuredType, @RestageUnionVariant, @RestageFactoryVariant, @StableWidget, @StableProperty, @RfwIncompatible, @RestagePropertyPreview.
• Hand-written JSON codecs. encodeCatalog and decodeCatalog.
• Lifecycle types. DeprecationInfo (two-layer: source vs catalog), CompatRule for forwarding/breaking changes, ValidationExpr.

Canonical v3 JSON is final-form only. Internal WireId.unallocated* placeholders are available for transitional pre-allocator tooling, but WireId('w0000') / p0000 / etc. are not public IDs, decodeCatalog rejects them, and encodeCatalog refuses to emit catalogs that still carry those placeholders. Legacy v2 JSON is decoded into LegacyCatalogV2 so a baseline without wire IDs cannot masquerade as a canonical Catalog.

What it does NOT contain

• No compiler logic. Analysis passes, IR types, the wire-ID allocator, and event-log replay live in the companion compiler package.
• No runtime. Theme resolution, wire-ID dispatching, and on-wire blob decoding live in the SDK runtime.
• No Flutter dependency. The package is pure Dart so it can be consumed by Dart-only backends and codegen pipelines.

Stability

1.0.0: the public surface is stable. Semver is honored from this release; breaking changes require a major-version bump.