Beautiful Type Erasure with C++26 Reflection
Details
- External ID
- 48905914
- Source
- HN
- Company
- —
- Product
- Beautiful Type Erasure with C++26 Reflection
- Website domain
- github.io
- Launched
- July 14, 2026
- Cohort
- —
- Upvotes
- 117
- Upvotes percentile
- 0.9366786140979689
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Try it on Compiler Explorer: https://godbolt.org/z/91dj5jeGWCheck out the source code: https://github.com/RyanJK5/rjk-duck
Enrichment
- Theme
- developer tools and programming utilities
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- c++ reflection library for type erasure
- Manually corrected
- False
Could you build this?
No Developing a generic type erasure library utilizing bleeding-edge C++26 static reflection and vtable code generation requires deep systems-level metaprogramming expertise.
What it would actually take: Requires experimental GCC branches supporting P2996 reflection and splice syntax. The developer must design low-overhead dynamic dispatch tables, constexpr reflection inspection routines, and complex template metaprogramming tricks without existing standard library paradigms. This demands deep ISO C++ committee proposal knowledge and advanced compiler internals understanding.
Discussion
20 comments analyzed.
Competitors mentioned: Scheme, Go, C, AI coding agents
Concerns raised: Loss of value semantics and type safety, Incomprehensible error messages (10k+ lines for single character errors), Compilation time issues and complexity, Abuse of language features for tricks instead of proper language design, Code maintainability and readability concerns
Feature requests: Better compile-time error messages, Stricter language design to prevent feature abuse, Improved IDE debugging for modern C++
Competitors
Other products that read as similar to this one — 96 launches clear the similarity bar, closest 8 shown.
Attention rank: #12 of 97 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 244 days after the earliest competitor.
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- Mirror_bridge · hn · 2025-12-04 · 29 upvotes · similarity 0.39
- mcp-tada · github · 2026-09-10 · 23 upvotes · similarity 0.39
- Zero deps C++ ASR binary for Linux (0MB idle RAM, no daemons, Unix way) · hn · 2026-06-04 · 5 upvotes · similarity 0.39
- Rust but Lisp · hn · 2026-05-09 · 218 upvotes · similarity 0.38
Other launches for this product
- No other launches for this product.
Same idea, different domain
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