From fc56055ecb63ef05b54aa098bde2d3b61c68e8b2 Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Fri, 2 Apr 2021 19:54:57 -0600
Subject: implement `origin`

---
 src/makefile/functions.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/makefile/functions.rs')

diff --git a/src/makefile/functions.rs b/src/makefile/functions.rs
index bc244cb..a61a0cf 100644
--- a/src/makefile/functions.rs
+++ b/src/makefile/functions.rs
@@ -56,6 +56,11 @@ pub fn expand_call(name: &str, args: &[TokenString], macros: &MacroSet) -> Resul
         // eval
         "eval" => todo!(),
 
+        "origin" => {
+            assert_eq!(args.len(), 1);
+            origin::origin(macros, &args[0])
+        }
+
         // shell
         "shell" => todo!(),
 
@@ -260,6 +265,15 @@ mod call {
     }
 }
 
+mod origin {
+    use super::*;
+
+    pub fn origin(macros: &MacroSet, variable: &TokenString) -> Result<String> {
+        let variable = macros.expand(variable)?;
+        Ok(macros.origin(&variable).to_owned())
+    }
+}
+
 #[cfg(test)]
 mod test {
     use super::*;
-- 
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