DHC is a Haskell compiler that produces WebAssembly.

It accepts only a tiny subset of the language.

https://dhc.dfinity.org

Run nix build.

The dhc program takes Haskell source on standard input and compiles it to WebAssembly on standard output. Two IO functions are defined:

which respectively call WebAssembly imports:

In system.putInt, we split the integer into 32-bit halves to make life easier for JavaScript.

The rundhc tool can interpret the output of dhc. It expects the input WebAssembly binary to export a function named main that takes no arguments and returns no arguments.

For example:

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