mirror of https://github.com/azur1s/bobbylisp.git
55 lines
1.6 KiB
Rust
55 lines
1.6 KiB
Rust
#![feature(trait_alias)]
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pub mod read;
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pub mod trans;
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pub mod args;
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use std::io::Write;
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use args::Options;
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use read::parse::{lex, parse};
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use structopt::StructOpt;
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use trans::low::{translate_expr, translate_js};
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fn main() {
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let opt = Options::from_args();
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let src = std::fs::read_to_string(opt.file).expect("Failed to read file");
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let (tokens, lex_errs) = lex(src.to_owned());
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let parse_errs = if let Some(tokens) = tokens {
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let (ast, parse_errs) = parse(tokens, src.len());
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if let Some(ast) = ast {
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let nexprs = ast.into_iter().map(|(e, _)| translate_expr(e)).collect::<Vec<_>>();
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let jsexprs = nexprs.into_iter().map(translate_js).collect::<Vec<_>>();
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let mut file = std::fs::File::create(opt.output.unwrap_or("out.js".into()))
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.expect("Failed to create file");
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let s = jsexprs
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.into_iter()
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.map(|e| {
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let s = format!("{}", e);
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if s.ends_with(';') {
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s
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} else {
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format!("{};", s)
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}
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})
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.collect::<Vec<_>>()
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.join("\n");
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file.write_all(s.as_bytes()).expect("Failed to write to file");
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}
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parse_errs
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} else {
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Vec::new()
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};
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if !lex_errs.is_empty() || !parse_errs.is_empty() {
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lex_errs
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.into_iter()
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.map(|e| e.map(|c| c.to_string()))
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.chain(parse_errs.into_iter().map(|e| e.map(|t| t.to_string())))
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.for_each(|e| println!("[{:?} {:?}] {}", e.span(), e.label(), e));
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}
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}
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