Summary
I use the code like the tutorial ,
#[no_mangle] pub extern fn sum(x: i32, y: i32) -> i32 { x + y }
and use: cargo build --target=wasm32-wasi to compile my rust code to .wasm file.
and I run the .wasm file like this wasmtime hello-rust2wasm.wasm, it can worked.
but when I call the .wasm file in Java it comes an error.
Exception in thread "main" java.lang.RuntimeException: Failed to instantiate the module: Error while importing "wasi_snapshot_preview1"."fd_write": unknown import. Expected Function(FunctionType { params: [I32, I32, I32, I32], results: [I32] })
but if I use the author's file simple.wasm show in README. it can work.
so I want to know how the author compiles the rust to wasm and where I can learn the method.
Additional details
Provide any additional details here.
Summary
I use the code like the tutorial ,
#[no_mangle] pub extern fn sum(x: i32, y: i32) -> i32 { x + y }and use:
cargo build --target=wasm32-wasito compile my rust code to.wasmfile.and I run the
.wasmfile like thiswasmtime hello-rust2wasm.wasm, it can worked.but when I call the .wasm file in Java it comes an error.
Exception in thread "main" java.lang.RuntimeException: Failed to instantiate the module: Error while importing "wasi_snapshot_preview1"."fd_write": unknown import. Expected Function(FunctionType { params: [I32, I32, I32, I32], results: [I32] })but if I use the author's file
simple.wasmshow in README. it can work.so I want to know how the author compiles the rust to wasm and where I can learn the method.
Additional details
Provide any additional details here.