forked from AbleScript/ablescript
65 lines
1.9 KiB
Rust
65 lines
1.9 KiB
Rust
#![forbid(unsafe_code, clippy::unwrap_used)]
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mod repl;
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use ablescript::interpret::ExecEnv;
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use ablescript::parser::parse;
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use clap::{Arg, Command};
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use std::process::exit;
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fn main() {
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// variables::test(); // NOTE(Able): Add this as a test case
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let matches = Command::new("AbleScript")
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.version(env!("CARGO_PKG_VERSION"))
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.author("Able <abl3theabove@gmail.com>")
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.about("AbleScript interpreter")
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.arg(
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Arg::new("file")
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.short('f')
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.long("file")
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.value_name("FILE")
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.help("Set the path to interpret from")
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.takes_value(true),
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)
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.arg(
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Arg::new("debug")
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.long("debug")
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.help("Enable debug AST printing"),
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)
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.get_matches();
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let ast_print = matches.is_present("debug");
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match matches.value_of("file") {
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Some(file_path) => {
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// Read file
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let source = match std::fs::read_to_string(file_path) {
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Ok(s) => s,
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Err(e) => {
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println!("Failed to read file \"{}\": {}", file_path, e);
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exit(1)
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}
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};
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// Parse & evaluate
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if let Err(e) = parse(&source).and_then(|ast| {
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if ast_print {
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println!("{:#?}", ast);
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}
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ExecEnv::<ablescript::host_interface::Standard>::default().eval_stmts(&ast)
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}) {
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println!(
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"Error `{:?}` occurred at span: {:?} = `{:?}`",
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e.kind,
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e.span.clone(),
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&source[e.span]
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);
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}
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}
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None => {
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println!("Hi [AbleScript {}]", env!("CARGO_PKG_VERSION"));
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repl::repl(ast_print);
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}
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}
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}
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