Add more complexity to example with custom record and parameters

Cargo.lock

@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "addr2line"
@@ -673,6 +673,13 @@ dependencies = [
  "smallvec",
 ]
 
+[[package]]
+name = "runner"
+version = "0.1.0"
+dependencies = [
+ "wasmtime",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -1157,13 +1164,6 @@ version = "20.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca6585868f5c427c3e9d2a8c0c3354e6d7d4518a0d17723ab25a0c1eebf5d5b4"
 
-[[package]]
-name = "wasmtime-test"
-version = "0.1.0"
-dependencies = [
- "wasmtime",
-]
-
 [[package]]
 name = "wasmtime-types"
 version = "20.0.2"

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
-
 members = [
     "component",
     "runner",
 ]
+resolver = "2"

component/src/lib.rs

@@ -2,12 +2,13 @@
 mod bindings;
 
 use bindings::{hello, Guest};
+use crate::bindings::RecordString;
 
 struct Component;
 
 impl Guest for Component {
-    fn greet() {
-        hello();
+    fn greet(hello_string: RecordString) {
+        hello(&hello_string);
     }
 }
 

component/wit/test.wit

@@ -1,6 +1,10 @@
 package my:project;
 
 world test {
-    import hello: func();
-    export greet: func();
+    record record-string {
+        hello-string: string,
+    }
+
+    import hello: func(hello-string: record-string);
+    export greet: func(hello-string: record-string);
 }

runner/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "wasmtime-test"
+name = "runner"
 version = "0.1.0"
 edition = "2021"
 

runner/src/main.rs

@@ -12,8 +12,8 @@ struct TestState {
 }
 
 impl TestImports for TestState {
-    fn hello(&mut self) -> std::result::Result<(), wasmtime::Error> {
-        println!("{}", self.name);
+    fn hello(&mut self, hello_string: RecordString) -> std::result::Result<(), wasmtime::Error> {
+        println!("{} - {}", self.name, hello_string.hello_string);
         Ok(())
     }
 }
@@ -22,7 +22,7 @@ fn main() -> wasmtime::Result<()> {
     let mut config = Config::new();
     config.wasm_component_model(true);
     let engine = Engine::new(&config)?;
-    let component = Component::from_file(&engine, "target/wasm32-wasi/release/component.wasm")?;
+    let component = Component::from_file(&engine, "target/wasm32-wasip1/release/component.wasm")?;
     let mut linker = Linker::new(&engine);
     Test::add_to_linker(&mut linker, |state: &mut TestState| state)?;
     let mut store = Store::new(
@@ -32,6 +32,6 @@ fn main() -> wasmtime::Result<()> {
         },
     );
     let (bindings, _) = Test::instantiate(&mut store, &component, &linker)?;
-    bindings.call_greet(&mut store)?;
+    bindings.call_greet(&mut store, &RecordString { hello_string: "Hello".to_owned() })?;
     Ok(())
 }

runner/wit/test.wit

@@ -1,6 +1,10 @@
 package my:project;
 
 world test {
-    import hello: func();
-    export greet: func();
+    record record-string {
+        hello-string: string,
+    }
+
+    import hello: func(hello-string: record-string);
+    export greet: func(hello-string: record-string);
 }