bendns' repos / klunk
smol lang
Diffstat (limited to 'src/main.rs')
-rw-r--r--src/main.rs52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..2ad7194
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,52 @@
+#![feature(iter_intersperse)]
+use chumsky::error::RichReason;
+use comat::cformat as cmt;
+use std::process::ExitCode;
+mod lexer;
+mod parser;
+
+fn main() -> ExitCode {
+ let Some(Ok(code)) = std::env::args().nth(1).map(std::fs::read_to_string) else {
+ comat::cprintln!("{bold_red}error{reset}: where file?");
+ return ExitCode::FAILURE;
+ };
+ let lexer = lexer::lex(&code);
+ match parser::parse(lexer, code.len()) {
+ Ok(x) => dbg!(x),
+ Err(e) => {
+ for e in e.into_iter().map(|e| e.map_token(|c| c.to_string())) {
+ let mut o = lerr::Error::new(&code);
+ o.label((e.span().into_range(), "here"));
+ match e.reason() {
+ RichReason::Custom(x) => {
+ o.message(cmt!("{red}error{reset}: {x}"));
+ }
+ RichReason::ExpectedFound { .. } => {
+ o.message(cmt!("{red}error{reset}: {e}"));
+ }
+ RichReason::Many(x) => {
+ match &x[..] {
+ [x, rest @ ..] => {
+ o.message(cmt!("{red}error{reset}: {x}"));
+ for elem in rest {
+ o.note(cmt!("{yellow}also{reset}: {elem}"));
+ }
+ }
+ _ => unreachable!(),
+ };
+ }
+ }
+ for (l, span) in e.contexts() {
+ o.label((
+ span.into_range(),
+ cmt!("{yellow}while parsing this{reset}: {l}"),
+ ));
+ }
+ eprintln!("{o}");
+ }
+ return ExitCode::FAILURE;
+ }
+ };
+
+ ExitCode::SUCCESS
+}