History

Loretta c2a22e5215 Refactor AcBinary string markers; charset/test renames - Replace single String marker with StringLen8/16/32 (167–169) for explicit string length encoding (1/2/4 bytes) - Update serialization/deserialization logic and marker checks for new scheme - Rename charset suffixes: Latin1FixAscii → AsciiFix, add Latin1Fix (5-char Hungarian) - Update menu, argument parsing, and references for new charset/test names and order - Swap MaxDepthBehavior enum values: Throw=0, Truncate=1 - Update comments and docs for new marker and charset conventions		2026-05-22 20:04:11 +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	Refactor string serialization, CLI args, and test data	2026-05-21 21:03:03 +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