wasm-utils/examples/opt_imports.rs
2019-01-24 16:21:52 +03:00

29 lines
796 B
Rust

extern crate pwasm_utils as utils;
use std::env;
fn main() {
let args = env::args().collect::<Vec<_>>();
if args.len() != 3 {
println!("Usage: {} input_file.wasm output_file.wasm", args[0]);
return;
}
// Loading module
let mut module = utils::Module::from_elements(
&parity_wasm::deserialize_file(&args[1]).expect("Module deserialization to succeed")
).expect("Failed to parse parity-wasm format");
let mut delete_types = Vec::new();
for type_ in module.types.iter() {
if type_.link_count() == 0 {
delete_types.push(type_.order().expect("type in list should have index"));
}
}
module.types.delete(&delete_types[..]);
parity_wasm::serialize_to_file(&args[2],
module.generate().expect("Failed to generate valid format")
).expect("Module serialization to succeed")
}