Example: Rust Simple
This shows a simple example of compiling Rust to WASM and then to the JVM.
The root build script actually has the build commands to build it. But basically it runs
cargo build --release on this directory which compiles add_one from lib.rs into
target/wasm32-unknown-unknown/release/rust_simple.wasm. Then the build script takes that wasm file and compiles it
to asmble.generated.RustSimple in build/wasm-classes. The class is used by
Main.java. It is instantiated with a set of memory and then
add_one is invoked with 25 to return 26.
To run it yourself, run the following from the root asmble dir (assuming you have built the Gradle wrapper described
in the root README's "Building and Testing" section):
gradlew --no-daemon :examples:rust-simple:run
Yes, this does include Rust's std lib, but it's not that big of a deal (I'm keeping it around because in other examples
as part of issue #9 I'll need it). The actual method executed for add_one
looks like this decompiled:
private int $func0(final int n) {
return n + 1;
}