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Runtime for executing procedural macros as WebAssembly

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Watt

github crates.io docs.rs

Watt is a runtime for executing Rust procedural macros compiled as WebAssembly.

[dependencies]
watt = "0.5"

Compiler support: requires rustc 1.42+


Rationale

  • Faster compilation. By compiling macros ahead-of-time to Wasm, we save all downstream users of the macro from having to compile the macro logic or its dependencies themselves.</