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fix generation of C signature when roc returns c_void

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Folkert 2023-02-25 16:05:09 +01:00
parent 35980e50b8
commit a3e759cc3c
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1 changed files with 6 additions and 2 deletions
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8
crates/compiler/gen_llvm/src/llvm/build.rs
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@ -3972,13 +3972,17 @@ fn expose_function_to_host_help_c_abi_v2<'a, 'ctx, 'env>(
&param_types[..param_types.len().saturating_sub(1)], &param_types[..param_types.len().saturating_sub(1)],
) )
} }
(RocReturn::Return | RocReturn::ByPointer, CCReturn::Void) => { (RocReturn::Return, CCReturn::Void) => {
// the roc function returns a unit value. like `{}` or `{ { {}, {} }, {} }`.
// In C, this is modelled as a function returning void
(&params[..], &param_types[..])
}
(RocReturn::ByPointer, CCReturn::Void) => {
// the roc function returns a unit value. like `{}` or `{ { {}, {} }, {} }`. // the roc function returns a unit value. like `{}` or `{ { {}, {} }, {} }`.
// In C, this is modelled as a function returning void // In C, this is modelled as a function returning void
( (
&params[..], &params[..],
&param_types[..param_types.len().saturating_sub(1)], &param_types[..param_types.len().saturating_sub(1)],
// &param_types[..],
) )
} }
_ => (&params[..], &param_types[..]), _ => (&params[..], &param_types[..]),