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wasm_interp: pass arguments from CLI

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Brian Carroll 2022-11-26 08:48:36 +00:00
parent fa1e0a8614
commit a09fd95fd7
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GPG key ID: 5C7B2EC4101703C0
6 changed files with 92 additions and 36 deletions
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32
crates/wasm_interp/src/main.rs
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@ -1,4 +1,5 @@
use bumpalo::Bump;
use clap::parser::ValuesRef;
use clap::ArgAction;
use clap::{Arg, Command};
use roc_wasm_interp::Action;
@ -14,6 +15,7 @@ pub const FLAG_FUNCTION: &str = "function";
pub const FLAG_DEBUG: &str = "debug";
pub const FLAG_HEX: &str = "hex";
pub const WASM_FILE: &str = "WASM_FILE";
pub const ARGS_FOR_APP: &str = "ARGS_FOR_APP";
fn main() -> io::Result<()> {
// Define the command line arguments
@ -41,12 +43,20 @@ fn main() -> io::Result<()> {
.allow_invalid_utf8(true)
.required(true);
let args_for_app = Arg::new(ARGS_FOR_APP)
.help("Arguments to pass into the WebAssembly app\ne.g. `roc_wasm_interp app.wasm -- 123 123.45`")
.multiple_values(true)
.takes_value(true)
.last(true);
let app = Command::new("roc_wasm_interp")
.about("Run the given .wasm file")
.arg(flag_function)
.arg(flag_debug)
.arg(flag_hex)
.arg(wasm_file_to_run);
.arg(wasm_file_to_run)
.trailing_var_arg(true)
.arg(args_for_app);
// Parse the command line arguments
@ -54,6 +64,10 @@ fn main() -> io::Result<()> {
let start_fn_name = matches.get_one::<String>(FLAG_FUNCTION).unwrap();
let is_debug_mode = matches.get_flag(FLAG_DEBUG);
let is_hex_format = matches.get_flag(FLAG_HEX);
let start_arg_strings = matches
.get_many::<String>(ARGS_FOR_APP)
.unwrap_or(ValuesRef::default())
.map(|s| s.as_str());
// Load the WebAssembly binary file
@ -76,11 +90,17 @@ fn main() -> io::Result<()> {
// Initialise the execution state
let mut state = ExecutionState::for_module(&arena, &module, start_fn_name, is_debug_mode)
.unwrap_or_else(|e| {
eprintln!("{}", e);
process::exit(2);
});
let mut state = ExecutionState::for_module(
&arena,
&module,
start_fn_name,
is_debug_mode,
start_arg_strings,
)
.unwrap_or_else(|e| {
eprintln!("{}", e);
process::exit(2);
});
// Run