mirror of
https://github.com/fluencelabs/wasm-utils
synced 2025-03-15 19:20:48 +00:00
48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
extern crate parity_wasm;
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extern crate pwasm_utils as utils;
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extern crate pwasm_utils_cli as logger;
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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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logger::init_log();
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let target_runtime = utils::TargetRuntime::pwasm();
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let matches = App::new("wasm-prune")
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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(&format!("Comma-separated list of exported functions to keep. Default: '{}'", target_runtime.symbols().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(target_runtime.symbols().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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utils::optimize(&mut module, exports).expect("Optimizer failed");
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parity_wasm::serialize_to_file(&output, module).expect("Serialization failed");
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}
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