mirror of
https://github.com/fluencelabs/wasm-utils
synced 2025-03-27 16:31:05 +00:00
45 lines
1.6 KiB
Rust
45 lines
1.6 KiB
Rust
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extern crate parity_wasm;
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extern crate wasm_utils;
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extern crate clap;
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use clap::{App, Arg};
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fn main() {
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wasm_utils::init_log();
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let matches = App::new("wasm-opt")
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.arg(Arg::with_name("input")
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.index(1)
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.required(true)
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.help("Input WASM file"))
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.arg(Arg::with_name("output")
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.index(2)
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.required(true)
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.help("Output WASM file"))
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.arg(Arg::with_name("exports")
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.long("exports")
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.short("e")
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.takes_value(true)
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.value_name("functions")
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.help("Comma-separated list of exported functions to keep. Default: _call"))
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.get_matches();
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let exports = matches
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.value_of("exports")
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.unwrap_or("_call")
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.split(',')
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.collect();
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let input = matches.value_of("input").expect("is required; qed");
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let output = matches.value_of("output").expect("is required; qed");
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let mut module = parity_wasm::deserialize_file(&input).unwrap();
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// Invoke optimizer
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// Contract is supposed to have only these functions as public api
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// All other symbols not usable by this list is optimized away
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wasm_utils::optimize(&mut module, exports).expect("Optimizer to finish without errors");
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parity_wasm::serialize_to_file(&output, module).unwrap();
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}
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