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nichy – a visualizer for Rust type memory layouts
by iridis·May 14, 2026·1 point·1 comment
AI Analysis
●●●BangerWizardrySolve My Problem
Finally, a visual tool to debug Rust niche optimizations without reading llvm-ir dumps.
Strengths
- •Instantly visualizes niche value optimization, a notoriously opaque part of Rust.
- •Supports multiple targets (WASM, ARM, x86) to show architecture-specific padding differences.
Weaknesses
- •Limited to type layout; doesn't visualize stack vs heap allocation or lifetimes.
- •Relies on rustc internal APIs which may break with future compiler updates.
Category
Target Audience
Rust developers optimizing memory usage or learning about data layout
Similar To
rust-gdb · cargo-expand · Pony ORM ER Diagrams
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