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firefox/third_party/rust/wasmparser/examples/simple.rs
Daniel Baumann 5e9a113729
Adding upstream version 140.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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Rust

use anyhow::Result;
use std::env;
use wasmparser::{Parser, Payload};
fn main() -> Result<()> {
let args = env::args().collect::<Vec<_>>();
if args.len() != 2 {
println!("Usage: {} in.wasm", args[0]);
return Ok(());
}
let buf: Vec<u8> = std::fs::read(&args[1])?;
for payload in Parser::new(0).parse_all(&buf) {
match payload? {
Payload::Version { .. } => {
println!("====== Module");
}
Payload::ExportSection(s) => {
for export in s {
let export = export?;
println!(" Export {} {:?}", export.name, export.kind);
}
}
Payload::ImportSection(s) => {
for import in s {
let import = import?;
println!(" Import {}::{}", import.module, import.name);
}
}
_other => {
// println!("found payload {:?}", _other);
}
}
}
Ok(())
}