rust_decoder

Cargo.toml

@@ -3,7 +3,7 @@ members = [
     "frontend",
     "backend",
     "shared",
-    "src-tauri",
+    "src-tauri", "test_files/components/rust_decoder",
 ]
 resolver = "2"
 

src-tauri/Cargo.toml

@@ -23,3 +23,4 @@ serde = { version = "1.0", features = ["derive"] }
 tauri = { version = "=2.0.0-beta.22", features = ["macos-private-api", "linux-ipc-protocol"] }
 tauri-plugin-window-state = "=2.0.0-beta.9"
 tauri-plugin-dialog = "=2.0.0-beta.9"
+wasmtime = "22.0.0"

test_files/components/rust_decoder/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "rust_decoder"
+version.workspace = true
+edition.workspace = true
+repository.workspace = true
+authors.workspace = true
+readme.workspace = true
+publish.workspace = true
+
+[dependencies]
+wit-bindgen-rt = { version = "0.26.0", features = ["bitflags"] }
+
+[lib]
+crate-type = ["cdylib"]
+
+[profile.release]
+codegen-units = 1
+opt-level = "s"
+debug = false
+strip = true
+lto = true
+
+[package.metadata.component]
+package = "component:rust-decoder"
+
+[package.metadata.component.dependencies]

test_files/components/rust_decoder/README.md

@@ -0,0 +1,7 @@
+How to create and build the Rust component:
+
+1. `cargo install cargo-component`
+2. `cargo component new rust_decoder --lib`
+3. `cd rust_decoder`
+4. Update code as needed
+5. `cargo +nightly component build --release --artifact-dir . -Z unstable-options`

test_files/components/rust_decoder/src/bindings.rs

@@ -0,0 +1,220 @@
+// Generated by `wit-bindgen` 0.25.0. DO NOT EDIT!
+// Options used:
+#[allow(dead_code)]
+pub mod component {
+    #[allow(dead_code)]
+    pub mod rust_decoder {
+        #[allow(dead_code, clippy::all)]
+        pub mod host {
+            #[used]
+            #[doc(hidden)]
+            #[cfg(target_arch = "wasm32")]
+            static __FORCE_SECTION_REF: fn() =
+                super::super::super::__link_custom_section_describing_imports;
+            #[allow(unused_unsafe, clippy::all)]
+            pub fn log(message: &str) {
+                unsafe {
+                    let vec0 = message;
+                    let ptr0 = vec0.as_ptr().cast::<u8>();
+                    let len0 = vec0.len();
+
+                    #[cfg(target_arch = "wasm32")]
+                    #[link(wasm_import_module = "component:rust-decoder/host")]
+                    extern "C" {
+                        #[link_name = "log"]
+                        fn wit_import(_: *mut u8, _: usize);
+                    }
+
+                    #[cfg(not(target_arch = "wasm32"))]
+                    fn wit_import(_: *mut u8, _: usize) {
+                        unreachable!()
+                    }
+                    wit_import(ptr0.cast_mut(), len0);
+                }
+            }
+        }
+    }
+}
+#[allow(dead_code)]
+pub mod exports {
+    #[allow(dead_code)]
+    pub mod component {
+        #[allow(dead_code)]
+        pub mod rust_decoder {
+            #[allow(dead_code, clippy::all)]
+            pub mod decoder {
+                #[used]
+                #[doc(hidden)]
+                #[cfg(target_arch = "wasm32")]
+                static __FORCE_SECTION_REF: fn() =
+                    super::super::super::super::__link_custom_section_describing_imports;
+                use super::super::super::super::_rt;
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn _export_init_cabi<T: Guest>() {
+                    #[cfg(target_arch = "wasm32")]
+                    _rt::run_ctors_once();
+                    T::init();
+                }
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn _export_name_cabi<T: Guest>() -> *mut u8 {
+                    #[cfg(target_arch = "wasm32")]
+                    _rt::run_ctors_once();
+                    let result0 = T::name();
+                    let ptr1 = _RET_AREA.0.as_mut_ptr().cast::<u8>();
+                    let vec2 = (result0.into_bytes()).into_boxed_slice();
+                    let ptr2 = vec2.as_ptr().cast::<u8>();
+                    let len2 = vec2.len();
+                    ::core::mem::forget(vec2);
+                    *ptr1.add(4).cast::<usize>() = len2;
+                    *ptr1.add(0).cast::<*mut u8>() = ptr2.cast_mut();
+                    ptr1
+                }
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn __post_return_name<T: Guest>(arg0: *mut u8) {
+                    let l0 = *arg0.add(0).cast::<*mut u8>();
+                    let l1 = *arg0.add(4).cast::<usize>();
+                    _rt::cabi_dealloc(l0, l1, 1);
+                }
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn _export_format_signal_value_cabi<T: Guest>(
+                    arg0: *mut u8,
+                    arg1: usize,
+                ) -> *mut u8 {
+                    #[cfg(target_arch = "wasm32")]
+                    _rt::run_ctors_once();
+                    let len0 = arg1;
+                    let bytes0 = _rt::Vec::from_raw_parts(arg0.cast(), len0, len0);
+                    let result1 = T::format_signal_value(_rt::string_lift(bytes0));
+                    let ptr2 = _RET_AREA.0.as_mut_ptr().cast::<u8>();
+                    let vec3 = (result1.into_bytes()).into_boxed_slice();
+                    let ptr3 = vec3.as_ptr().cast::<u8>();
+                    let len3 = vec3.len();
+                    ::core::mem::forget(vec3);
+                    *ptr2.add(4).cast::<usize>() = len3;
+                    *ptr2.add(0).cast::<*mut u8>() = ptr3.cast_mut();
+                    ptr2
+                }
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn __post_return_format_signal_value<T: Guest>(arg0: *mut u8) {
+                    let l0 = *arg0.add(0).cast::<*mut u8>();
+                    let l1 = *arg0.add(4).cast::<usize>();
+                    _rt::cabi_dealloc(l0, l1, 1);
+                }
+                pub trait Guest {
+                    fn init();
+                    fn name() -> _rt::String;
+                    fn format_signal_value(value: _rt::String) -> _rt::String;
+                }
+                #[doc(hidden)]
+
+                macro_rules! __export_component_rust_decoder_decoder_cabi{
+    ($ty:ident with_types_in $($path_to_types:tt)*) => (const _: () = {
+
+      #[export_name = "component:rust-decoder/decoder#init"]
+      unsafe extern "C" fn export_init() {
+        $($path_to_types)*::_export_init_cabi::<$ty>()
+      }
+      #[export_name = "component:rust-decoder/decoder#name"]
+      unsafe extern "C" fn export_name() -> *mut u8 {
+        $($path_to_types)*::_export_name_cabi::<$ty>()
+      }
+      #[export_name = "cabi_post_component:rust-decoder/decoder#name"]
+      unsafe extern "C" fn _post_return_name(arg0: *mut u8,) {
+        $($path_to_types)*::__post_return_name::<$ty>(arg0)
+      }
+      #[export_name = "component:rust-decoder/decoder#format-signal-value"]
+      unsafe extern "C" fn export_format_signal_value(arg0: *mut u8,arg1: usize,) -> *mut u8 {
+        $($path_to_types)*::_export_format_signal_value_cabi::<$ty>(arg0, arg1)
+      }
+      #[export_name = "cabi_post_component:rust-decoder/decoder#format-signal-value"]
+      unsafe extern "C" fn _post_return_format_signal_value(arg0: *mut u8,) {
+        $($path_to_types)*::__post_return_format_signal_value::<$ty>(arg0)
+      }
+    };);
+  }
+                #[doc(hidden)]
+                pub(crate) use __export_component_rust_decoder_decoder_cabi;
+                #[repr(align(4))]
+                struct _RetArea([::core::mem::MaybeUninit<u8>; 8]);
+                static mut _RET_AREA: _RetArea = _RetArea([::core::mem::MaybeUninit::uninit(); 8]);
+            }
+        }
+    }
+}
+mod _rt {
+
+    #[cfg(target_arch = "wasm32")]
+    pub fn run_ctors_once() {
+        wit_bindgen_rt::run_ctors_once();
+    }
+    pub unsafe fn cabi_dealloc(ptr: *mut u8, size: usize, align: usize) {
+        if size == 0 {
+            return;
+        }
+        let layout = alloc::Layout::from_size_align_unchecked(size, align);
+        alloc::dealloc(ptr as *mut u8, layout);
+    }
+    pub use alloc_crate::string::String;
+    pub use alloc_crate::vec::Vec;
+    pub unsafe fn string_lift(bytes: Vec<u8>) -> String {
+        if cfg!(debug_assertions) {
+            String::from_utf8(bytes).unwrap()
+        } else {
+            String::from_utf8_unchecked(bytes)
+        }
+    }
+    pub use alloc_crate::alloc;
+    extern crate alloc as alloc_crate;
+}
+
+/// Generates `#[no_mangle]` functions to export the specified type as the
+/// root implementation of all generated traits.
+///
+/// For more information see the documentation of `wit_bindgen::generate!`.
+///
+/// ```rust
+/// # macro_rules! export{ ($($t:tt)*) => (); }
+/// # trait Guest {}
+/// struct MyType;
+///
+/// impl Guest for MyType {
+///     // ...
+/// }
+///
+/// export!(MyType);
+/// ```
+#[allow(unused_macros)]
+#[doc(hidden)]
+
+macro_rules! __export_component_impl {
+  ($ty:ident) => (self::export!($ty with_types_in self););
+  ($ty:ident with_types_in $($path_to_types_root:tt)*) => (
+  $($path_to_types_root)*::exports::component::rust_decoder::decoder::__export_component_rust_decoder_decoder_cabi!($ty with_types_in $($path_to_types_root)*::exports::component::rust_decoder::decoder);
+  )
+}
+#[doc(inline)]
+pub(crate) use __export_component_impl as export;
+
+#[cfg(target_arch = "wasm32")]
+#[link_section = "component-type:wit-bindgen:0.25.0:component:encoded world"]
+#[doc(hidden)]
+pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 330] = *b"\
+\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\xca\x01\x01A\x02\x01\
+A\x04\x01B\x02\x01@\x01\x07messages\x01\0\x04\0\x03log\x01\0\x03\x01\x1bcomponen\
+t:rust-decoder/host\x05\0\x01B\x06\x01@\0\x01\0\x04\0\x04init\x01\0\x01@\0\0s\x04\
+\0\x04name\x01\x01\x01@\x01\x05values\0s\x04\0\x13format-signal-value\x01\x02\x04\
+\x01\x1ecomponent:rust-decoder/decoder\x05\x01\x04\x01\x20component:rust-decoder\
+/component\x04\0\x0b\x0f\x01\0\x09component\x03\0\0\0G\x09producers\x01\x0cproce\
+ssed-by\x02\x0dwit-component\x070.208.1\x10wit-bindgen-rust\x060.25.0";
+
+#[inline(never)]
+#[doc(hidden)]
+#[cfg(target_arch = "wasm32")]
+pub fn __link_custom_section_describing_imports() {
+    wit_bindgen_rt::maybe_link_cabi_realloc();
+}

test_files/components/rust_decoder/src/lib.rs

@@ -0,0 +1,30 @@
+#[allow(warnings)]
+mod bindings;
+
+use bindings::component::rust_decoder::host;
+use bindings::exports::component::rust_decoder::decoder;
+
+macro_rules! log {
+    ($($arg:tt)*) => (host::log(&format!($($arg)*)))
+}
+
+static NAME: &str = "Rust Test Decoder";
+
+struct Component;
+
+impl decoder::Guest for Component {
+    fn init() {
+        log!("'{NAME}' initialized")
+    }
+
+    fn name() -> String {
+        NAME.to_string()
+    }
+
+    fn format_signal_value(mut value: String) -> String {
+        value.push('!');
+        value
+    }
+}
+
+bindings::export!(Component with_types_in bindings);

test_files/components/rust_decoder/wit/world.wit

@@ -0,0 +1,16 @@
+package component:rust-decoder;
+
+interface host {
+    log: func(message: string);
+}
+
+interface decoder {
+    init: func();
+    name: func() -> string;
+    format-signal-value: func(value: string) -> string;
+}
+
+world component {
+    import host;
+    export decoder;
+}