Andy Wingo 10/30/2025

wastrel, a profligate implementation of webassembly

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The article details wastrel, a WebAssembly implementation that compiles Wasm modules to standalone binaries by first emitting C code. It compares wastrel to existing tools like wasm2c and w2c2, highlighting its aim to support automatic memory management via WasmGC and the Whippet library. It also covers its WASI 0.1 support, CLI design similar to wasmtime, and code generation approach that avoids unnecessary temporaries through effects analysis.

wastrel, a profligate implementation of webassembly

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