From 56e71d678270a6c331fb5a0f0c3933ec0ac70de3 Mon Sep 17 00:00:00 2001
From: John <j@soft.fish>
Date: Thu, 19 Sep 2024 13:16:27 -0500
Subject: [PATCH] cl-lexer: Add a hacky workaround for float support.

It's disgusting, but better than nothing!
---
 compiler/cl-lexer/src/lib.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/compiler/cl-lexer/src/lib.rs b/compiler/cl-lexer/src/lib.rs
index e0e1328..2ed2d91 100644
--- a/compiler/cl-lexer/src/lib.rs
+++ b/compiler/cl-lexer/src/lib.rs
@@ -387,7 +387,19 @@ impl<'t> Lexer<'t> {
         while let Ok(true) = self.peek().as_ref().map(char::is_ascii_alphanumeric) {
             value = value * B as u128 + self.digit::<B>()? as u128;
         }
-        self.produce(Kind::Literal, value)
+        // TODO: find a better way to handle floats in the tokenizer
+        match self.peek() {
+            Ok('.') => {
+                let mut float = format!("{value}.");
+                self.consume()?;
+                while let Ok(true) = self.peek().as_ref().map(char::is_ascii_digit) {
+                    float.push(self.iter.next().unwrap_or_default());
+                }
+                let float = f64::from_str(&float).expect("must be parsable as float");
+                self.produce(Kind::Literal, float)
+            }
+            _ => self.produce(Kind::Literal, value),
+        }
     }
     fn digit<const B: u32>(&mut self) -> LResult<u32> {
         let digit = self.peek()?;