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Fix: Propagate user attributes through #[jolt::provable] macro #1136

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Merged
moodlezoup merged 3 commits into from
Dec 8, 2025
Merged

Fix: Propagate user attributes through #[jolt::provable] macro #1136

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8984796
fix: propagate user attributes through #[jolt::provable] macro
shreyas-londhe Dec 1, 2025
edfd65a
fix: create inner function and pass args
shreyas-londhe Dec 8, 2025
988b605
chore: minor change
shreyas-londhe Dec 8, 2025
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18 changes: 16 additions & 2 deletions jolt-sdk/macros/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -283,9 +283,11 @@ impl MacroBuilder {
let inputs = &self.func.sig.inputs;
let output = &self.func.sig.output;
let body = &self.func.block;
let attrs = &self.func.attrs;

quote! {
#[cfg(not(target_arch = "wasm32"))]
#(#attrs)*
pub fn #fn_name(#inputs) #output {
#body
}
Expand Down Expand Up @@ -758,8 +760,20 @@ impl MacroBuilder {

let check_input_len = quote! {};

let block = &self.func.block;
let block = quote! {let to_return = (|| -> _ { #block })();};
let attrs = &self.func.attrs;
let output = &self.func.sig.output;
let body = &self.func.block;
let fn_name = self.get_func_name();
let inner_fn_name = syn::Ident::new(&format!("__jolt_guest_{fn_name}"), fn_name.span());
let inputs_vec: Vec<_> = self.func.sig.inputs.iter().collect();
let inputs = quote! { #(#inputs_vec),* };
let ordered_func_args = self.get_all_func_args_in_order();
let all_names: Vec<_> = ordered_func_args.iter().map(|(name, _)| name).collect();
let block = quote! {
#(#attrs)*
fn #inner_fn_name(#inputs) #output #body
let to_return = #inner_fn_name(#(#all_names),*);
};

let handle_return = match &self.func.sig.output {
ReturnType::Default => quote! {},
Expand Down