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wasm_interp: Add --debug flag

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Brian Carroll 2022-11-25 00:04:18 +00:00
parent 3d756a8fff
commit 9d77c474d9
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GPG key ID: 5C7B2EC4101703C0
4 changed files with 94 additions and 22 deletions
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18
crates/wasm_interp/src/main.rs
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@ -1,4 +1,5 @@
use bumpalo::Bump;
use clap::ArgAction;
use clap::{Arg, Command};
use roc_wasm_interp::Action;
use std::ffi::OsString;
@ -10,6 +11,7 @@ use roc_wasm_interp::ExecutionState;
use roc_wasm_module::WasmModule;
pub const FLAG_FUNCTION: &str = "function";
pub const FLAG_DEBUG: &str = "debug";
pub const WASM_FILE: &str = "WASM_FILE";
fn main() -> io::Result<()> {
@ -21,6 +23,12 @@ fn main() -> io::Result<()> {
.default_value("_start")
.required(false);
let flag_debug = Arg::new(FLAG_DEBUG)
.long(FLAG_DEBUG)
.help("Print a log of every instruction executed, for debugging purposes.")
.action(ArgAction::SetTrue)
.required(false);
let wasm_file_to_run = Arg::new(WASM_FILE)
.help("The .wasm file to run")
.allow_invalid_utf8(true)
@ -29,12 +37,14 @@ fn main() -> io::Result<()> {
let app = Command::new("roc_wasm_interp")
.about("Run the given .wasm file")
.arg(flag_function)
.arg(flag_debug)
.arg(wasm_file_to_run);
// Parse the command line arguments
let matches = app.get_matches();
let start_fn_name = matches.get_one::<String>(FLAG_FUNCTION).unwrap();
let is_debug_mode = matches.get_flag(FLAG_DEBUG);
// Load the WebAssembly binary file
@ -57,13 +67,11 @@ fn main() -> io::Result<()> {
// Initialise the execution state
let mut state = match ExecutionState::for_module(&arena, &module, start_fn_name) {
Ok(s) => s,
Err(e) => {
let mut state = ExecutionState::for_module(&arena, &module, start_fn_name, is_debug_mode)
.unwrap_or_else(|e| {
eprintln!("{}", e);
process::exit(2);
}
};
});
// Run