Beskar.Memory.Code 1.5.9

Beskar.Memory.Code

A high-performance utility library designed for Roslyn Source Generators. It provides low-allocation abstractions to analyze compiler symbols, build diagnostic maps, and generate code cleanly and rapidly. It replaces standard heavy LINQ-based symbol operations with low-allocation structures backed by Beskar.Memory.

Core Component Directory

1. Code Rendering & Formatting

• CodeTextWriter
  • Description: A high-performance, stack-only ref struct writer designed specifically for code generation.
  • Key Feature: Integrates automatic, custom-configurable indentation levels and interpolated string formatting with zero heap allocations.
• CodeRenderer
  • Description: A simple abstract base class providing standardized, cancellation-aware C# source file creation using Roslyn's SourceProductionContext.
• CodeWriterExtensions
  • Description: An extension block on ref CodeTextWriter providing fast formatting templates like WriteEnableNullable, WriteUsing, WriteNamespace, and auto-generated header blocks.
• SymbolDisplayFormats
  • Description: A collection of static Roslyn display format templates used to generate clean type, member, and property signature strings.

2. Diagnostics Management

• DiagnosticBuilder<T>
  • Description: A high-performance, low-allocation builder designed to accumulate, format, and dispatch compiler diagnostics.
  • Key Feature: Backed by ArrayBuilder<T> to completely eliminate garbage collection overhead in compiler analysis hot paths.
• DiagnosticSpec
  • Description: A readonly record representing a specific diagnostic code and its parameters.
• MaybeSpec<T>
  • Description: A union spec representing the optional successfully compiled code generator value alongside accumulated compiler diagnostics.

3. Roslyn Symbol Specifications (Specs)

Lightweight specification records that serialize compiler symbols into easily matching models:

• SymbolSpec
  • Description: The base record holding name, accessibility, and flag indicators for any compiler symbol.
• TypeSymbolSpec
  • Description: A specification detail representing unmanaged or managed compiler types.
• NamedTypeSymbolSpec
  • Description: Representing classes, records, and interfaces with nested specifications.
• FieldSymbolSpec
  • Description: Specification maps for class fields and constants.
• PropertySymbolSpec
  • Description: Representing properties including custom get/set configurations.
• MethodSymbolSpec
  • Description: Model representing void returns, parameters, attributes, and asynchronous/iterator states.
• ParameterSymbolSpec
  • Description: Parameter specifications mapped inside method signatures.
• TypeParameterSymbolSpec
  • Description: Generic type constraints and parameters.

4. Roslyn Metadata Archetypes

Compact metadata models used to generate raw symbol signatures during code rendering:

• TypeSymbolArchetype / NamedTypeSymbolArchetype / FieldSymbolArchetype / PropertySymbolArchetype / MethodSymbolArchetype / ParameterSymbolArchetype / TypeParameterArchetype
  • Description: A clean hierarchy of lightweight, highly-cached symbol description structures.

5. transformers & Translators

• SymbolSpecTransformer / TypeSymbolSpecTransformer / NamedTypeSymbolSpecTransformer / FieldSymbolSpecTransformer / PropertySymbolSpecTransformer / MethodSymbolSpecTransformer / ParameterSymbolSpecTransformer / TypeParameterSymbolSpecTransformer
  • Description: Systemic translation helpers that compile active Roslyn compiler symbols (ISymbol, IMethodSymbol, etc.) into specification specs under custom filters.
• TypeSymbolArchetypeTransformer / NamedTypeSymbolArchetypeTransformer / FieldSymbolArchetypeTransformer / PropertySymbolArchetypeTransformer / MethodSymbolArchetypeTransformer / ParameterSymbolArchetypeTransformer / TypeParameterSymbolArchetypeTransformer
  • Description: Transformers converting active symbols into their lightweight description archetypes.

6. Extensions

• AttributeDataExtensions
  • Description: Provides high-performance extension members on Roslyn's AttributeData to cleanly extract named arguments (numbers, booleans, enums, arrays, and types) without memory allocations.
• AttributeDataConstructorExtensions
  • Description: Helpers to extract positional arguments from attribute constructor calls.
• AttributeDataFallbackExtensions
  • Description: Fallback value wrappers for named arguments.
• SourceProductionContextExtensions
  • Description: Dispatches diagnostic lists to Roslyn contexts utilizing zero-allocation arrays.
• TypedConstantExtensions / TypedConstantArrayExtensions
  • Description: Extensions to parse TypedConstant values and arrays efficiently.
• SymbolExtensions / TypeSymbolExtensions / NamedTypeSymbolExtensions / FieldSymbolExtensions / PropertySymbolExtensions / MethodSymbolExtensions / ParameterSymbolExtensions / TypeParameterSymbolExtensions
  • Description: Low-allocation shortcut helpers for typical symbol operations.
• StringExtensions
  • Description: Performs high-performance casing transitions (such as SnakeCase or FirstCharToLower) backed by SpanOwner<char>.
• AccessibilityExtensions
  • Description: Maps C# Accessibility to standard keyword string signatures (public, private, etc.).