wasmparser-0.4.0 doesn't have any documentation.
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_bytes();
let mut parser = Parser::new(buf);
loop {
let state = parser.read();
match *state {
ParserState::BeginWasm { .. } => {
println!("====== Module");
}
ParserState::ExportSectionEntry { field, ref kind, .. } => {
println!(" Export {} {:?}", get_name(field), kind);
}
ParserState::ImportSectionEntry { module, field, .. } => {
println!(" Import {}::{}", get_name(module), get_name(field))
}
ParserState::EndWasm => break,
_ => ( /* println!(" Other {:?}", state) */ )
}
}
}