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In the `ModuleEnvironment::declare_signature` callback, also pass the original Wasm function signature, so that consumers may associate this information with each compiled function. This is often necessary because while each Wasm signature gets compiled down into a single native signature, multiple Wasm signatures might compile down into the same native signature, and in these cases the original Wasm signature is required for dynamic type checking of calls.
This crate performs the translation from a wasm module in binary format to the in-memory form of the Cranelift IR.
If you're looking for a complete WebAssembly implementation that uses this library, see Wasmtime.