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