67 lines
2.0 KiB
Rust
67 lines
2.0 KiB
Rust
use my::project::types::Host;
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use wasmtime::{
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component::{bindgen, Component, Linker, ResourceTable},
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Config, Engine, Store,
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};
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use crate::my::project::types::HostTestresource;
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// Defaults to 'wit' folder adjacent to cargo.toml.
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// Change folder by using: bindgen!(in "other/with/folder")
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bindgen!({
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with: {
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"my:project/types/testresource": TestResourceData,
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}
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});
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pub struct TestResourceData {
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some_data: String,
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}
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struct TestState {
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name: String,
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resources: ResourceTable,
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}
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impl TestImports for TestState {
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fn hello(&mut self, hello_string: RecordString) -> std::result::Result<(), wasmtime::Error> {
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println!("{} - {}", self.name, hello_string.hello_string);
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Ok(())
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}
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}
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impl HostTestresource for TestState {
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fn hello(&mut self,self_:wasmtime::component::Resource<TestResourceData>,) -> wasmtime::Result<()> {
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println!("HostTestResource - {} - {}", self.name, self.resources.get(&self_).unwrap().some_data);
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Ok(())
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}
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fn drop(&mut self,rep:wasmtime::component::Resource<TestResourceData>) -> wasmtime::Result<()> {
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self.resources.delete(rep).unwrap();
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Ok(())
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}
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}
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impl Host for TestState {
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}
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fn main() -> wasmtime::Result<()> {
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let engine = Engine::new(Config::new().wasm_component_model(true))?;
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let component = Component::from_file(&engine, "target/wasm32-wasip1/release/component.wasm")?;
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let mut linker = Linker::new(&engine);
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Test::add_to_linker(&mut linker, |state: &mut TestState| state)?;
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let test_state = TestState {
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name: "Hello World".to_string(),
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resources: ResourceTable::new(),
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};
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let mut store = Store::new(
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&engine,
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test_state
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);
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let (bindings, _) = Test::instantiate(&mut store, &component, &linker)?;
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let resource = store.data_mut().resources.push(TestResourceData{some_data: "I'm a component with hidden data".to_owned()}).unwrap();
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bindings.call_greet(&mut store, &RecordString { hello_string: "Hello".to_owned() }, resource)?;
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Ok(())
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}
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