feat: pre-processed wasm

Signed-off-by: Henry Gressmann <mail@henrygressmann.de>

1 files changed, 33 insertions, 0 deletions

diff --git a/examples/rust/src/tinywasm_no_std.rs b/examples/rust/src/tinywasm_no_std.rs
new file mode 100644
index 0000000..9f2b28c
--- /dev/null
+++ b/examples/rust/src/tinywasm_no_std.rs
@@ -0,0 +1,33 @@
+#![no_main]
+#![no_std]
+use tinywasm::{Extern, FuncContext};
+
+#[link(wasm_import_module = "env")]
+extern "C" {
+    fn printi32(x: i32);
+}
+
+#[no_mangle]
+pub extern "C" fn hello() {
+    let _ = run();
+}
+
+fn run() -> tinywasm::Result<()> {
+    let module = tinywasm::Module::parse_bytes(include_bytes!("../out/print.wasm"))?;
+    let mut store = tinywasm::Store::default();
+    let mut imports = tinywasm::Imports::new();
+
+    imports.define(
+        "env",
+        "printi32",
+        Extern::typed_func(|_: FuncContext<'_>, v: i32| {
+            unsafe { printi32(v) }
+            Ok(())
+        }),
+    )?;
+    let instance = module.instantiate(&mut store, Some(imports))?;
+
+    let add_and_print = instance.exported_func::<(i32, i32), ()>(&mut store, "add_and_print")?;
+    add_and_print.call(&mut store, (1, 2))?;
+    Ok(())
+}