DioxusLabs/dioxus · error · syn::Error

cannot use receiver types in server function macro

Error message

cannot use receiver types in server function macro

What it means

Error "cannot use receiver types in server function macro" thrown in DioxusLabs/dioxus.

Source

Thrown at packages/fullstack-macro/src/lib.rs:1800

    /// The type of the server function argument.
    arg: syn::PatType,
}

impl ToTokens for ServerFnArg {
    fn to_tokens(&self, tokens: &mut TokenStream2) {
        let ServerFnArg { arg, .. } = self;
        tokens.extend(quote! {
            #arg
        });
    }
}

impl Parse for ServerFnArg {
    fn parse(input: ParseStream) -> Result<Self> {
        let arg: syn::FnArg = input.parse()?;
        let mut arg = match arg {
            FnArg::Receiver(_) => {
                return Err(syn::Error::new(
                    arg.span(),
                    "cannot use receiver types in server function macro",
                ));
            }
            FnArg::Typed(t) => t,
        };

        fn rename_path(path: Path, from_ident: Ident, to_ident: Ident) -> Path {
            if path.is_ident(&from_ident) {
                Path {
                    leading_colon: None,
                    segments: Punctuated::from_iter([PathSegment {
                        ident: to_ident,
                        arguments: PathArguments::None,
                    }]),
                }
            } else {
                path

View on GitHub (pinned to 393d190a80)

When it happens

Trigger: Thrown at packages/fullstack-macro/src/lib.rs:1800 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of DioxusLabs/dioxus@393d190a80 (2026-08-16). Data as JSON: /api/errors/f75a956f80e1f31c. Report an issue: GitHub.