Simple wasm parser in Rust
See also its sibling at https://github.com/wasdk/wasmparser
Example
use wasmparser::Parser;
use wasmparser::ParserState;
fn get_name(bytes: &[u8]) -> &str {
str::from_utf8(bytes).ok().unwrap()
}
fn main() {
let ref buf: Vec<u8> = read_wasm().unwrap();
let mut parser = Parser::new(buf);
loop {
let state = parser.read();
if state.is_none() {
break;
}
match *state.unwrap() {
ParserState::BeginWasm(_, _) => {
println!("====== Module");
},
ParserState::ExportSectionEntry(field, ref ty, _) => {
println!(" Export {} {:?}", get_name(field), ty);
},
ParserState::ImportSectionEntry(module, field, _) => {
println!(" Import {}::{}", get_name(module), get_name(field))
}
_ => ( /* println!(" Other {:?}", state); */ )
}
}
}