1 files changed, 20 insertions, 1 deletions
diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index ea7651b..3f89ebb 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -121,10 +121,29 @@ impl Builtin for _type {
         stdout: &mut dyn Write,
     ) -> std::io::Result<()> {
         for arg in args {
-            let kind = todo!();
+            let kind = "todo";
             writeln!(stdout, "{} is {}", String::from_utf8_lossy(arg), kind)?;
         }
 
         Ok(())
     }
 }
+
+pub struct builtins;
+impl Builtin for builtins {
+    fn name(&self) -> &str {
+        "builtins"
+    }
+
+    fn io(
+        &self,
+        _args: &[BString],
+        _stdin: &mut dyn Read,
+        stdout: &mut dyn Write,
+    ) -> std::io::Result<()> {
+        for b in super::BUILTINS {
+            write!(stdout, "{} ", b.name())?;
+        }
+        writeln!(stdout)
+    }
+}