type builtin: tell the user that an alias is an alias

2 files changed, 10 insertions, 3 deletions

diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index 47a10c2..710f0fc 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -7,6 +7,7 @@ use pish_derive::FromArgs;
 
 use super::{Builtin, BuiltinError as Error, BuiltinResult as Result};
 use crate::parse::CmdDisplay;
+use crate::run::AliasAge;
 use crate::*;
 
 #[allow(unused)]
@@ -203,8 +204,14 @@ impl Builtin for _type {
         _stdin: &mut dyn Read,
         stdout: &mut dyn Write,
     ) -> Result {
+        let session = session.lock().unwrap();
         for arg in args {
-            let kind = super::get_command_kind(&session.lock().unwrap(), &arg[..]);
+            if session.aliases.get(&arg, AliasAge::MAX).is_some() {
+                writeln!(stdout, "{} is an alias", String::from_utf8_lossy(arg))?;
+                continue;
+            }
+
+            let kind = super::get_command_kind(&session, &arg[..]);
 
             let kind_str = match kind {
                 run::CommandKind::Builtin(_) => "builtin",
@@ -530,4 +537,4 @@ impl Builtin for unalias {
 
         Ok(())
     }
-}
\ No newline at end of file
+}
diff --git a/src/run/mod.rs b/src/run/mod.rs
index d52c4e7..36cd454 100644
--- a/src/run/mod.rs
+++ b/src/run/mod.rs
@@ -451,7 +451,7 @@ impl Aliases {
         }
     }
 
-    fn get(&mut self, name: &bstr, older_than: AliasAge) -> Option<(AliasAge, AliasBody)> {
+    fn get(&self, name: &bstr, older_than: AliasAge) -> Option<(AliasAge, AliasBody)> {
         let Some(alias_set) = self.aliases.get(name) else {
             return None;
         };