/// Auto-generated bindings for a pre-instantiated version of a /// component which implements the world `the-world`. /// /// This structure is created through [`TheWorldPre::new`] which /// takes a [`InstancePre`](wasmtime::component::InstancePre) that /// has been created through a [`Linker`](wasmtime::component::Linker). /// /// For more information see [`TheWorld`] as well. pub struct TheWorldPre { instance_pre: wasmtime::component::InstancePre, indices: TheWorldIndices, } impl Clone for TheWorldPre { fn clone(&self) -> Self { Self { instance_pre: self.instance_pre.clone(), indices: self.indices.clone(), } } } impl<_T: 'static> TheWorldPre<_T> { /// Creates a new copy of `TheWorldPre` bindings which can then /// be used to instantiate into a particular store. /// /// This method may fail if the component behind `instance_pre` /// does not have the required exports. pub fn new( instance_pre: wasmtime::component::InstancePre<_T>, ) -> wasmtime::Result { let indices = TheWorldIndices::new(&instance_pre)?; Ok(Self { instance_pre, indices }) } pub fn engine(&self) -> &wasmtime::Engine { self.instance_pre.engine() } pub fn instance_pre(&self) -> &wasmtime::component::InstancePre<_T> { &self.instance_pre } /// Instantiates a new instance of [`TheWorld`] within the /// `store` provided. /// /// This function will use `self` as the pre-instantiated /// instance to perform instantiation. Afterwards the preloaded /// indices in `self` are used to lookup all exports on the /// resulting instance. pub fn instantiate( &self, mut store: impl wasmtime::AsContextMut, ) -> wasmtime::Result { let mut store = store.as_context_mut(); let instance = self.instance_pre.instantiate(&mut store)?; self.indices.load(&mut store, &instance) } } impl<_T: Send + 'static> TheWorldPre<_T> { /// Same as [`Self::instantiate`], except with `async`. pub async fn instantiate_async( &self, mut store: impl wasmtime::AsContextMut, ) -> wasmtime::Result { let mut store = store.as_context_mut(); let instance = self.instance_pre.instantiate_async(&mut store).await?; self.indices.load(&mut store, &instance) } } /// Auto-generated bindings for index of the exports of /// `the-world`. /// /// This is an implementation detail of [`TheWorldPre`] and can /// be constructed if needed as well. /// /// For more information see [`TheWorld`] as well. #[derive(Clone)] pub struct TheWorldIndices { interface0: exports::foo::foo::manyarg::GuestIndices, } /// Auto-generated bindings for an instance a component which /// implements the world `the-world`. /// /// This structure can be created through a number of means /// depending on your requirements and what you have on hand: /// /// * The most convenient way is to use /// [`TheWorld::instantiate`] which only needs a /// [`Store`], [`Component`], and [`Linker`]. /// /// * Alternatively you can create a [`TheWorldPre`] ahead of /// time with a [`Component`] to front-load string lookups /// of exports once instead of per-instantiation. This /// method then uses [`TheWorldPre::instantiate`] to /// create a [`TheWorld`]. /// /// * If you've instantiated the instance yourself already /// then you can use [`TheWorld::new`]. /// /// These methods are all equivalent to one another and move /// around the tradeoff of what work is performed when. /// /// [`Store`]: wasmtime::Store /// [`Component`]: wasmtime::component::Component /// [`Linker`]: wasmtime::component::Linker pub struct TheWorld { interface0: exports::foo::foo::manyarg::Guest, } const _: () = { impl TheWorldIndices { /// Creates a new copy of `TheWorldIndices` bindings which can then /// be used to instantiate into a particular store. /// /// This method may fail if the component does not have the /// required exports. pub fn new<_T>( _instance_pre: &wasmtime::component::InstancePre<_T>, ) -> wasmtime::Result { let _component = _instance_pre.component(); let _instance_type = _instance_pre.instance_type(); let interface0 = exports::foo::foo::manyarg::GuestIndices::new( _instance_pre, )?; Ok(TheWorldIndices { interface0 }) } /// Uses the indices stored in `self` to load an instance /// of [`TheWorld`] from the instance provided. /// /// Note that at this time this method will additionally /// perform type-checks of all exports. pub fn load( &self, mut store: impl wasmtime::AsContextMut, instance: &wasmtime::component::Instance, ) -> wasmtime::Result { let _ = &mut store; let _instance = instance; let interface0 = self.interface0.load(&mut store, &_instance)?; Ok(TheWorld { interface0 }) } } impl TheWorld { /// Convenience wrapper around [`TheWorldPre::new`] and /// [`TheWorldPre::instantiate`]. pub fn instantiate<_T>( store: impl wasmtime::AsContextMut, component: &wasmtime::component::Component, linker: &wasmtime::component::Linker<_T>, ) -> wasmtime::Result { let pre = linker.instantiate_pre(component)?; TheWorldPre::new(pre)?.instantiate(store) } /// Convenience wrapper around [`TheWorldIndices::new`] and /// [`TheWorldIndices::load`]. pub fn new( mut store: impl wasmtime::AsContextMut, instance: &wasmtime::component::Instance, ) -> wasmtime::Result { let indices = TheWorldIndices::new(&instance.instance_pre(&store))?; indices.load(&mut store, instance) } /// Convenience wrapper around [`TheWorldPre::new`] and /// [`TheWorldPre::instantiate_async`]. pub async fn instantiate_async<_T>( store: impl wasmtime::AsContextMut, component: &wasmtime::component::Component, linker: &wasmtime::component::Linker<_T>, ) -> wasmtime::Result where _T: Send, { let pre = linker.instantiate_pre(component)?; TheWorldPre::new(pre)?.instantiate_async(store).await } pub fn add_to_linker( linker: &mut wasmtime::component::Linker, host_getter: fn(&mut T) -> D::Data<'_>, ) -> wasmtime::Result<()> where D: foo::foo::manyarg::HostWithStore + Send, for<'a> D::Data<'a>: foo::foo::manyarg::Host + Send, T: 'static + Send, { foo::foo::manyarg::add_to_linker::(linker, host_getter)?; Ok(()) } pub fn foo_foo_manyarg(&self) -> &exports::foo::foo::manyarg::Guest { &self.interface0 } } }; pub mod foo { pub mod foo { #[allow(clippy::all)] pub mod manyarg { #[allow(unused_imports)] use wasmtime::component::__internal::Box; #[derive(wasmtime::component::ComponentType)] #[derive(wasmtime::component::Lift)] #[derive(wasmtime::component::Lower)] #[component(record)] #[derive(Clone)] pub struct BigStruct { #[component(name = "a1")] pub a1: wasmtime::component::__internal::String, #[component(name = "a2")] pub a2: wasmtime::component::__internal::String, #[component(name = "a3")] pub a3: wasmtime::component::__internal::String, #[component(name = "a4")] pub a4: wasmtime::component::__internal::String, #[component(name = "a5")] pub a5: wasmtime::component::__internal::String, #[component(name = "a6")] pub a6: wasmtime::component::__internal::String, #[component(name = "a7")] pub a7: wasmtime::component::__internal::String, #[component(name = "a8")] pub a8: wasmtime::component::__internal::String, #[component(name = "a9")] pub a9: wasmtime::component::__internal::String, #[component(name = "a10")] pub a10: wasmtime::component::__internal::String, #[component(name = "a11")] pub a11: wasmtime::component::__internal::String, #[component(name = "a12")] pub a12: wasmtime::component::__internal::String, #[component(name = "a13")] pub a13: wasmtime::component::__internal::String, #[component(name = "a14")] pub a14: wasmtime::component::__internal::String, #[component(name = "a15")] pub a15: wasmtime::component::__internal::String, #[component(name = "a16")] pub a16: wasmtime::component::__internal::String, #[component(name = "a17")] pub a17: wasmtime::component::__internal::String, #[component(name = "a18")] pub a18: wasmtime::component::__internal::String, #[component(name = "a19")] pub a19: wasmtime::component::__internal::String, #[component(name = "a20")] pub a20: wasmtime::component::__internal::String, } impl core::fmt::Debug for BigStruct { fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result { f.debug_struct("BigStruct") .field("a1", &self.a1) .field("a2", &self.a2) .field("a3", &self.a3) .field("a4", &self.a4) .field("a5", &self.a5) .field("a6", &self.a6) .field("a7", &self.a7) .field("a8", &self.a8) .field("a9", &self.a9) .field("a10", &self.a10) .field("a11", &self.a11) .field("a12", &self.a12) .field("a13", &self.a13) .field("a14", &self.a14) .field("a15", &self.a15) .field("a16", &self.a16) .field("a17", &self.a17) .field("a18", &self.a18) .field("a19", &self.a19) .field("a20", &self.a20) .finish() } } const _: () = { assert!( 160 == < BigStruct as wasmtime::component::ComponentType >::SIZE32 ); assert!( 4 == < BigStruct as wasmtime::component::ComponentType >::ALIGN32 ); }; pub trait HostWithStore: wasmtime::component::HasData + Send { fn many_args( accessor: &wasmtime::component::Accessor, a1: u64, a2: u64, a3: u64, a4: u64, a5: u64, a6: u64, a7: u64, a8: u64, a9: u64, a10: u64, a11: u64, a12: u64, a13: u64, a14: u64, a15: u64, a16: u64, ) -> impl ::core::future::Future + Send; fn big_argument( accessor: &wasmtime::component::Accessor, x: BigStruct, ) -> impl ::core::future::Future + Send; } pub trait Host: Send {} impl<_T: Host + ?Sized + Send> Host for &mut _T {} pub fn add_to_linker( linker: &mut wasmtime::component::Linker, host_getter: fn(&mut T) -> D::Data<'_>, ) -> wasmtime::Result<()> where D: HostWithStore, for<'a> D::Data<'a>: Host, T: 'static + Send, { let mut inst = linker.instance("foo:foo/manyarg")?; inst.func_wrap_concurrent( "many-args", move | caller: &wasmtime::component::Accessor, ( arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, ): ( u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, )| { wasmtime::component::__internal::Box::pin(async move { let host = &caller.with_getter(host_getter); let r = ::many_args( host, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, ) .await; Ok(r) }) }, )?; inst.func_wrap_concurrent( "big-argument", move | caller: &wasmtime::component::Accessor, (arg0,): (BigStruct,)| { wasmtime::component::__internal::Box::pin(async move { let host = &caller.with_getter(host_getter); let r = ::big_argument(host, arg0).await; Ok(r) }) }, )?; Ok(()) } } } } pub mod exports { pub mod foo { pub mod foo { #[allow(clippy::all)] pub mod manyarg { #[allow(unused_imports)] use wasmtime::component::__internal::Box; #[derive(wasmtime::component::ComponentType)] #[derive(wasmtime::component::Lift)] #[derive(wasmtime::component::Lower)] #[component(record)] #[derive(Clone)] pub struct BigStruct { #[component(name = "a1")] pub a1: wasmtime::component::__internal::String, #[component(name = "a2")] pub a2: wasmtime::component::__internal::String, #[component(name = "a3")] pub a3: wasmtime::component::__internal::String, #[component(name = "a4")] pub a4: wasmtime::component::__internal::String, #[component(name = "a5")] pub a5: wasmtime::component::__internal::String, #[component(name = "a6")] pub a6: wasmtime::component::__internal::String, #[component(name = "a7")] pub a7: wasmtime::component::__internal::String, #[component(name = "a8")] pub a8: wasmtime::component::__internal::String, #[component(name = "a9")] pub a9: wasmtime::component::__internal::String, #[component(name = "a10")] pub a10: wasmtime::component::__internal::String, #[component(name = "a11")] pub a11: wasmtime::component::__internal::String, #[component(name = "a12")] pub a12: wasmtime::component::__internal::String, #[component(name = "a13")] pub a13: wasmtime::component::__internal::String, #[component(name = "a14")] pub a14: wasmtime::component::__internal::String, #[component(name = "a15")] pub a15: wasmtime::component::__internal::String, #[component(name = "a16")] pub a16: wasmtime::component::__internal::String, #[component(name = "a17")] pub a17: wasmtime::component::__internal::String, #[component(name = "a18")] pub a18: wasmtime::component::__internal::String, #[component(name = "a19")] pub a19: wasmtime::component::__internal::String, #[component(name = "a20")] pub a20: wasmtime::component::__internal::String, } impl core::fmt::Debug for BigStruct { fn fmt( &self, f: &mut core::fmt::Formatter<'_>, ) -> core::fmt::Result { f.debug_struct("BigStruct") .field("a1", &self.a1) .field("a2", &self.a2) .field("a3", &self.a3) .field("a4", &self.a4) .field("a5", &self.a5) .field("a6", &self.a6) .field("a7", &self.a7) .field("a8", &self.a8) .field("a9", &self.a9) .field("a10", &self.a10) .field("a11", &self.a11) .field("a12", &self.a12) .field("a13", &self.a13) .field("a14", &self.a14) .field("a15", &self.a15) .field("a16", &self.a16) .field("a17", &self.a17) .field("a18", &self.a18) .field("a19", &self.a19) .field("a20", &self.a20) .finish() } } const _: () = { assert!( 160 == < BigStruct as wasmtime::component::ComponentType >::SIZE32 ); assert!( 4 == < BigStruct as wasmtime::component::ComponentType >::ALIGN32 ); }; #[derive(Clone)] pub struct Guest { many_args: wasmtime::component::Func, big_argument: wasmtime::component::Func, } #[derive(Clone)] pub struct GuestIndices { many_args: wasmtime::component::ComponentExportIndex, big_argument: wasmtime::component::ComponentExportIndex, } impl GuestIndices { /// Constructor for [`GuestIndices`] which takes a /// [`Component`](wasmtime::component::Component) as input and can be executed /// before instantiation. /// /// This constructor can be used to front-load string lookups to find exports /// within a component. pub fn new<_T>( _instance_pre: &wasmtime::component::InstancePre<_T>, ) -> wasmtime::Result { let instance = _instance_pre .component() .get_export_index(None, "foo:foo/manyarg") .ok_or_else(|| { wasmtime::format_err!( "no exported instance named `foo:foo/manyarg`" ) })?; let mut lookup = move |name| { _instance_pre .component() .get_export_index(Some(&instance), name) .ok_or_else(|| { wasmtime::format_err!( "instance export `foo:foo/manyarg` does \ not have export `{name}`" ) }) }; let _ = &mut lookup; let many_args = lookup("many-args")?; let big_argument = lookup("big-argument")?; Ok(GuestIndices { many_args, big_argument, }) } pub fn load( &self, mut store: impl wasmtime::AsContextMut, instance: &wasmtime::component::Instance, ) -> wasmtime::Result { let _instance = instance; let _instance_pre = _instance.instance_pre(&store); let _instance_type = _instance_pre.instance_type(); let mut store = store.as_context_mut(); let _ = &mut store; let many_args = *_instance .get_typed_func::< ( u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, ), (), >(&mut store, &self.many_args)? .func(); let big_argument = *_instance .get_typed_func::< (&BigStruct,), (), >(&mut store, &self.big_argument)? .func(); Ok(Guest { many_args, big_argument }) } } impl Guest { pub async fn call_many_args<_T, _D>( &self, accessor: &wasmtime::component::Accessor<_T, _D>, arg0: u64, arg1: u64, arg2: u64, arg3: u64, arg4: u64, arg5: u64, arg6: u64, arg7: u64, arg8: u64, arg9: u64, arg10: u64, arg11: u64, arg12: u64, arg13: u64, arg14: u64, arg15: u64, ) -> wasmtime::Result<()> where _T: Send, _D: wasmtime::component::HasData, { let callee = unsafe { wasmtime::component::TypedFunc::< ( u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, u64, ), (), >::new_unchecked(self.many_args) }; let () = callee .call_concurrent( accessor, ( arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15, ), ) .await?; Ok(()) } pub async fn call_big_argument<_T, _D>( &self, accessor: &wasmtime::component::Accessor<_T, _D>, arg0: BigStruct, ) -> wasmtime::Result<()> where _T: Send, _D: wasmtime::component::HasData, { let callee = unsafe { wasmtime::component::TypedFunc::< (BigStruct,), (), >::new_unchecked(self.big_argument) }; let () = callee.call_concurrent(accessor, (arg0,)).await?; Ok(()) } } } } } }