Hacker News Reader

Loving the tooling around wasm getting better. I've been debugging my compiler output with hexl-mode and reading the binary format and while it's not that bad, it'd be nice to do more advanced debugging with a text format.

There was a project I saw too that intended to visualize WebAssembly's execution. That'd be extremely helpful too

View on HN

> reading the binary format ... it'd be nice to do more advanced debugging with a text format.

Do you know about `wasm2wat` (from the WebAssembly binary toolkit, "WABT")? It produces a 1-to-1 text representation of the bytecode and is meant to always roundtrip via `wat2wasm` back to the same bytecode.

Yeah...I should probably use that. But does it work on mangled WASM? Part of the issue was that my compiler wasn't producing valid WASM

Ah, no, probably doesn't do parsing recovery. But `wasm-validate` from the same toolkit will at least tell you the offset at which your wasm file has an error (I just flipped some bits in a wasm file to test this), which may be helpful!

Reply on news.ycombinator.com