History

Loretta 11d76270dc Fix SGen null complex prop bug, add CHUNK_ABORT to SignalR - Fix SGen-generated writer bug: always null-check reference-type properties before serialization, emitting PropertySkip if null, to prevent runtime NREs. - Add regression tests for SGen null complex property handling. - Introduce CHUNK_ABORT ([203]) marker to SignalR binary protocol for graceful mid-stream serialize failure handling; update protocol logic and docs. - Improve documentation to cover bug, fix, and new protocol marker. - Minor: remove explicit net10.0 target from test csproj.		2026-05-23 09:26:48 +02:00
..
AcBinarySourceGenerator.Diagnostics.cs	Refactor AcBinarySourceGenerator into partial classes	2026-05-15 18:54:22 +02:00
AcBinarySourceGenerator.GenInit.cs	Refactor AcBinarySourceGenerator into partial classes	2026-05-15 18:54:22 +02:00
AcBinarySourceGenerator.GenReader.cs	Refactor AcBinary string markers; charset/test renames	2026-05-22 20:04:11 +02:00
AcBinarySourceGenerator.GenWriter.cs	Fix SGen null complex prop bug, add CHUNK_ABORT to SignalR	2026-05-23 09:26:48 +02:00
AcBinarySourceGenerator.GetClassInfo.cs	Refactor AcBinarySourceGenerator into partial classes	2026-05-15 18:54:22 +02:00
AcBinarySourceGenerator.Models.cs	Fix SGen ref-handling asymmetry; add regression tests	2026-05-19 08:32:39 +02:00
AcBinarySourceGenerator.TypeAnalysis.cs	Refactor AcBinarySourceGenerator into partial classes	2026-05-15 18:54:22 +02:00
AcBinarySourceGenerator.cs	Refactor AcBinarySourceGenerator into partial classes	2026-05-15 18:54:22 +02:00
AyCode.Core.Serializers.SourceGenerator.csproj	Add SGenOnly build config and centralize build settings	2026-05-19 17:41:06 +02:00
README.md	Overhaul SignalR/DataSource docs, update all references	2026-03-29 18:28:52 +02:00

README.md

AyCode.Core.Serializers.SourceGenerator

Roslyn incremental source generator that produces optimized IGeneratedBinaryWriter and IGeneratedBinaryReader implementations for types marked with [AcBinarySerializable]. Eliminates runtime reflection on serialization hot paths.

Targets netstandard2.0 (required for Roslyn analyzers/generators).

Key Files

AcBinarySourceGenerator.cs — Single-file IIncrementalGenerator (~2100 lines). Generates:
- {ClassName}_GeneratedWriter — Per-type writer with ScanObject() + WriteProperties() methods. Handles primitives, strings (with interning), collections, dictionaries, complex nested types, and polymorphic objects.
- {ClassName}_GeneratedReader — Per-type reader with ReadProperties() method.
- ModuleInitializer — Auto-registers all generated writers/readers at startup.
- Circular reference detection with ACBIN001 diagnostic warning.

Slot Allocation

Each generated writer reserves a unique type slot via AcBinarySerializer.AllocateWrapperSlot() (static field initializer, Interlocked.Increment).

Slots 0–63 — reserved for runtime polymorphic types (assigned dynamically on first encounter)
Slots 64+ — source-generated types (allocated at [ModuleInitializer] registration time)

Slot indices are NOT stable across compilations. The order depends on Roslyn's ForAttributeWithMetadataName() enumeration order, which may vary between builds. This is fine because slots are only meaningful within a single serialization/deserialization session — they are never persisted to disk or sent over the wire as slot indices (the wire format uses type names or metadata hashes for cross-session/cross-type compatibility).

Feature Flags

The [AcBinarySerializable] attribute supports per-type feature control:

enableMetadata — Property hash metadata for cross-type deserialization
enableIdTracking — IId-based reference tracking
enableRefHandling — General reference tracking
enableInternString — String interning/deduplication

Disabled features eliminate corresponding code blocks from generated output (zero dead code).

Dependencies