3c51d3adb8
* Move all examples to a top-level directory This commit moves all API examples (Rust and C) to a top-level `examples` directory. This is intended to make it more discoverable and conventional as to where examples are located. Additionally all examples are now available in both Rust and C to see how to execute the example in the language you're familiar with. The intention is that as more languages are supported we'd add more languages as examples here too. Each example is also accompanied by either a `*.wat` file which is parsed as input, or a Rust project in a `wasm` folder which is compiled as input. A simple driver crate was also added to `crates/misc` which executes all the examples on CI, ensuring the C and Rust examples all execute successfully.
32 lines
1.2 KiB
Rust
32 lines
1.2 KiB
Rust
//! Example of enabling debuginfo for wasm code which allows interactive
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//! debugging of the wasm code. When using recent versions of LLDB
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//! you can debug this executable and set breakpoints in wasm code and look at
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//! the rust source code as input.
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// To execute this example you'll need to run two commands:
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//
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// cargo build -p example-fib-wasm --target wasm32-unknown-unknown
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// cargo run --example fib-debug
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use anyhow::Result;
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use wasmtime::*;
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fn main() -> Result<()> {
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// Load our previously compiled wasm file (built previously with Cargo) and
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// also ensure that we generate debuginfo so this executable can be
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// debugged in GDB.
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let engine = Engine::new(Config::new().debug_info(true));
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let store = Store::new(&engine);
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let module = Module::from_file(&store, "target/wasm32-unknown-unknown/debug/fib.wasm")?;
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let instance = Instance::new(&module, &[])?;
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// Invoke `fib` export
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let fib = instance
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.get_export("fib")
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.and_then(|e| e.func())
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.ok_or(anyhow::format_err!("failed to find `fib` function export"))?
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.get1::<i32, i32>()?;
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println!("fib(6) = {}", fib(6)?);
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Ok(())
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}
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