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Test Co<T> supporting non-default CrubitAbi bridge types #768

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Test Co<T> supporting non-default CrubitAbi bridge types #768

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23 changes: 20 additions & 3 deletions rs_bindings_from_cc/generate_bindings/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1178,9 +1178,26 @@ fn crubit_abi_type(db: &BindingsGenerator, rs_type_kind: RsTypeKind) -> Result<C
}
};

// The default constructor knows what `start_coroutine` and `destroy_at_initial_suspend`
// functions to use.
let cpp_expr_tokens = quote! { #cpp_type_tokens() };
let cpp_expr_tokens = {
let start_coroutine_fn_tokens = match &result_type_crubit_abi_type {
None => {
quote! {
&::c9::internal::rust::StartCoroutineFromRust
}
}
Some(result_type_crubit_abi_type) => {
let abi_expr_tokens =
CrubitAbiTypeToCppExprTokens(result_type_crubit_abi_type);

quote! {
&::c9::internal::rust::StartCoroutineFromRust<[]() { return #abi_expr_tokens; }>
}
}
};
quote! {
#cpp_type_tokens(#start_coroutine_fn_tokens)
}
};

Ok(CrubitAbiType::C9Co {
rust_type_tokens,
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