Struct wiggle_generate::config::AsyncConf

pub struct AsyncConf { /* private fields */ }

Modules and funcs that have async signatures

Implementations

impl AsyncConf

pub fn get(&self, module: &str, function: &str) -> Asyncness

Examples found in repository

src/codegen_settings.rs (line 37)

    pub fn get_async(&self, module: &Module, func: &InterfaceFunc) -> Asyncness {
        self.async_.get(module.name.as_str(), func.name.as_str())
    }

src/config.rs (line 439)

    pub fn contains_async(&self, module: &witx::Module) -> bool {
        for f in module.funcs() {
            if self.get(module.name.as_str(), f.name.as_str()).is_async() {
                return true;
            }
        }
        false
    }

src/wasmtime.rs (line 25)

pub fn link_module(
    module: &witx::Module,
    target_path: Option<&syn::Path>,
    settings: &CodegenSettings,
) -> TokenStream {
    let module_ident = names::module(&module.name);

    let send_bound = if settings.async_.contains_async(module) {
        quote! { + Send, T: Send }
    } else {
        quote! {}
    };

    let mut bodies = Vec::new();
    let mut bounds = HashSet::new();
    for f in module.funcs() {
        let asyncness = settings.async_.get(module.name.as_str(), f.name.as_str());
        bodies.push(generate_func(&module, &f, target_path, asyncness));
        let bound = func_bounds(module, &f, settings);
        for b in bound {
            bounds.insert(b);
        }
    }

    let ctx_bound = if let Some(target_path) = target_path {
        let bounds = bounds
            .into_iter()
            .map(|b| quote!(#target_path::#module_ident::#b));
        quote!( #(#bounds)+* #send_bound )
    } else {
        let bounds = bounds.into_iter();
        quote!( #(#bounds)+* #send_bound )
    };

    let func_name = if target_path.is_none() {
        format_ident!("add_to_linker")
    } else {
        format_ident!("add_{}_to_linker", module_ident)
    };

    quote! {
        /// Adds all instance items to the specified `Linker`.
        pub fn #func_name<T, U>(
            linker: &mut wiggle::wasmtime_crate::Linker<T>,
            get_cx: impl Fn(&mut T) -> &mut U + Send + Sync + Copy + 'static,
        ) -> wiggle::anyhow::Result<()>
            where
                U: #ctx_bound #send_bound
        {
            #(#bodies)*
            Ok(())
        }
    }
}

pub fn contains_async(&self, module: &Module) -> bool

Examples found in repository

src/wasmtime.rs (line 16)

pub fn link_module(
    module: &witx::Module,
    target_path: Option<&syn::Path>,
    settings: &CodegenSettings,
) -> TokenStream {
    let module_ident = names::module(&module.name);

    let send_bound = if settings.async_.contains_async(module) {
        quote! { + Send, T: Send }
    } else {
        quote! {}
    };

    let mut bodies = Vec::new();
    let mut bounds = HashSet::new();
    for f in module.funcs() {
        let asyncness = settings.async_.get(module.name.as_str(), f.name.as_str());
        bodies.push(generate_func(&module, &f, target_path, asyncness));
        let bound = func_bounds(module, &f, settings);
        for b in bound {
            bounds.insert(b);
        }
    }

    let ctx_bound = if let Some(target_path) = target_path {
        let bounds = bounds
            .into_iter()
            .map(|b| quote!(#target_path::#module_ident::#b));
        quote!( #(#bounds)+* #send_bound )
    } else {
        let bounds = bounds.into_iter();
        quote!( #(#bounds)+* #send_bound )
    };

    let func_name = if target_path.is_none() {
        format_ident!("add_to_linker")
    } else {
        format_ident!("add_{}_to_linker", module_ident)
    };

    quote! {
        /// Adds all instance items to the specified `Linker`.
        pub fn #func_name<T, U>(
            linker: &mut wiggle::wasmtime_crate::Linker<T>,
            get_cx: impl Fn(&mut T) -> &mut U + Send + Sync + Copy + 'static,
        ) -> wiggle::anyhow::Result<()>
            where
                U: #ctx_bound #send_bound
        {
            #(#bodies)*
            Ok(())
        }
    }
}

Trait Implementations

impl Clone for AsyncConf

fn clone(&self) -> AsyncConf

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AsyncConf

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AsyncConf

fn default() -> AsyncConf

Returns the “default value” for a type.