Layomi Akinrinade layomia

ConfigurationBinder source generator

Phase 1: Implement core binding functionality

Similar to fast-path JSON deserialization.

Current status Feature branch:

core infra & generation implemented
based on David's prototype which generates to global namespace, making compiler choose source-gen'd methods over framework methods
testing mechanism same as JSON (sharing tests with reflection-based implementation)

Layomi 📹

concentric circles in no order ㋛

Visual art / versioned thoughts - VSCO
Music I make & listen to - SoundCloud / Spotify
.NET ~ libraries I help build 💻(that run on phones, the web, and spaceships) - GitHub / Twitter

The default behavior of the System.Text.Json JsonSerializer and Utf8JsonWriter follows the behavior of JavascriptEncoder.Default, which means the following character sets are escaped:

Any non-ascii character
Characters required escaping based on the JSON RFC
HTML-specific ascii characters

Current Approach

The current approach involves going through the list of characters, one at a time, and check whether that character needs escaping. We special case the "null" encoder (which is the default when the user doesn't specify their own) and use a 256 byte bit-mask to indicate which character needs to be escaped. https://github.com/dotnet/corefx/blob/52d63157c78c31816b81be1599a5dacf96b5e5ca/src/System.Text.Json/src/System/Text/Json/Writer/JsonWriterHelper.Escaping.cs#L82-L109

New Approach Chosen

Approach A

/// <summary>
/// Prevents a property from being serialized or deserialized.
/// </summary>
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
public sealed class JsonIgnoreAttribute : JsonAttribute
{
    /// <summary>

	Me:
	I want to build a simple p5.js game where Harry Potter villains approach Harry in three lanes (like Beat Saber). Harry can move left/right, and if he’s in the right lane when a villain reaches him, he slays them; otherwise they pass. Track slayed vs passed, and end the game when the difference reaches ±5. Later, I asked for photorealism, then said I don’t have images—so just approximate in code. Finally, I asked to make the game feel more alive, with more depth and closer to my artistic style.

	AI:
	Provided a full p5.js implementation of the 3-lane game with movement, spawning enemies, hit detection, scoring, and game-over logic . Then upgraded it to support photorealistic sprites using PNG assets (with prompts for generating them), while keeping a fallback if images are missing . After that, created a fully code-based stylized version (no images) with recognizable character silhouettes . Finally, enhanced the game with richer visuals and “life”: beat-synced spawning, parallax corridor, particles (dust/sp

	[Attached image and generated videos not shown]

	video of going through a wormhole/time jumping. adding a lot of flashing/distortion and the movement of going through it

	Gemini said

	You said
	16:9, 25s video of going through a wormhole/time jumping. adding a lot of flashing/distortion and the movement of going through it

	Gemini said

	Me:
	I’m building a mood lamp with CPX. I want a hand swipe gesture to control it. Right swipe should turn it on, left swipe should turn it off, and I want swipe velocity to determine which mood gets activated. Can you help me define gesture rules and mood-state mapping?

	AI:
	Yes. A clean way to structure this is:

	1. Gesture rules

	Right swipe = activate lamp and select mood

	using System.Text.Json.Serialization;
	using AotWebApi;
	using Microsoft.Extensions.Options;

	var builder = WebApplication.CreateSlimBuilder(args);

	builder.Services.ConfigureHttpJsonOptions(options =>
	{
	options.SerializerOptions.TypeInfoResolverChain.Insert(0, AppJsonSerializerContext.Default);
	});

	namespace Microsoft.Extensions.Configuration.Binder.SourceGeneration
	{
	[AttributeUsage(AttributeTargets.Assembly, AllowMultiple = false)]
	// Specifies options to honor when generating binding logic.
	// Presence indicates that the source generator should be invoked for the current assembly.
	public sealed class BindingSourceGenerationOptionsAttribute : Attribute
	{
	// Specifies the generation mode.
	public BindingSourceGenerationMode GenerationMode { get; set; }
	}

	using System;
	using System.Collections.Generic;
	using System.Text.Json;
	using System.Text.Json.Serialization;

	namespace RefHandlingDemo
	{
	class Program
	{
	static void Main(string[] args)