From 75e73eb5d86dd2b769a68fd704ebb9b8fca271f8 Mon Sep 17 00:00:00 2001
From: Max Mindlin <maxmindlin@gmail.com>
Date: Sun, 16 Jun 2024 15:53:45 -0400
Subject: [PATCH] booleans

---
 scout-interpreter/src/lib.rs | 2 +-
 scout-lexer/src/token.rs     | 4 ++++
 scout-parser/src/lib.rs      | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/scout-interpreter/src/lib.rs b/scout-interpreter/src/lib.rs
index f44a5c3..e74e0a0 100644
--- a/scout-interpreter/src/lib.rs
+++ b/scout-interpreter/src/lib.rs
@@ -332,7 +332,7 @@ fn eval_expression<'a>(
                 let res = eval_op(l_obj.clone(), op, r_obj.clone())?;
                 Ok(res)
             }
-            _ => Err(EvalError::InvalidExpr),
+            ExprKind::Boolean(val) => Ok(Arc::new(Object::Boolean(*val))),
         }
     }
     .boxed()
diff --git a/scout-lexer/src/token.rs b/scout-lexer/src/token.rs
index b060900..b9dc339 100644
--- a/scout-lexer/src/token.rs
+++ b/scout-lexer/src/token.rs
@@ -29,6 +29,8 @@ pub enum TokenKind {
     Goto,
     Scrape,
     Screenshot,
+    True,
+    False,
 }
 
 impl TokenKind {
@@ -43,6 +45,8 @@ impl TokenKind {
             "goto" => Some(Goto),
             "scrape" => Some(Scrape),
             "screenshot" => Some(Screenshot),
+            "true" => Some(True),
+            "false" => Some(False),
             _ => None,
         }
     }
diff --git a/scout-parser/src/lib.rs b/scout-parser/src/lib.rs
index 42acdd6..78b4a98 100644
--- a/scout-parser/src/lib.rs
+++ b/scout-parser/src/lib.rs
@@ -166,6 +166,8 @@ impl Parser {
 
     fn parse_single_expr(&mut self) -> ParseResult<ExprKind> {
         let lhs = match self.curr.kind {
+            TokenKind::False => Ok(ExprKind::Boolean(false)),
+            TokenKind::True => Ok(ExprKind::Boolean(true)),
             TokenKind::Ident => {
                 // Parse multiple types of ident expressions
                 match self.peek.kind {