Function syn_args::utils::ewc

source ยท 
pub fn ewc<F, T, E>(callback: F) -> Result<T, E>
where
    F: FnOnce() -> Result<T, E>,
Examples found in repository?
examples/test-expand.rs (lines 64-66)
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    fn try_from(v: &syn_args::Value) -> Result<Self, Self::Error> {
        if let syn_args::Value::Array(v) = v {
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| {
                Ok(ModuleArgs::F1(syn_args::utils::otr(v.get(0usize))?.try_into()?, syn_args::utils::otr(v.get(1usize))?.try_into()?))
            }) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F2(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F3(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F4(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F5(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F6(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
            if let Ok(rt) = syn_args::utils::ewc::<_, _, anyhow::Error>(|| Ok(ModuleArgs::F7(syn_args::utils::otr(v.get(0usize))?.try_into()?))) {
                return Ok(rt);
            }
        }
        Err(Self::Error::new(proc_macro2::Span::call_site(), "Invalid args"))
    }