fix conditional assignment when original is inherited

1 files changed, 7 insertions, 2 deletions

diff --git a/src/makefile/macro_scope.rs b/src/makefile/macro_scope.rs
index bee603e..ba9b6cf 100644
--- a/src/makefile/macro_scope.rs
+++ b/src/makefile/macro_scope.rs
@@ -26,7 +26,7 @@ pub trait MacroScope {
 
 impl MacroScope for MacroSet {
     fn get(&self, name: &str) -> Option<Cow<Macro>> {
-        self.get(name).map(Cow::Borrowed)
+        self.get_non_recursive(name).map(Cow::Borrowed)
     }
 }
 
@@ -82,7 +82,7 @@ impl<'a> MacroScopeStack<'a> {
         }
     }
 
-    fn get(&self, name: &str) -> Option<Cow<Macro>> {
+    pub fn get(&self, name: &str) -> Option<Cow<Macro>> {
         for scope in &self.scopes {
             if let Some(r#macro) = scope.get(name) {
                 return Some(r#macro);
@@ -91,6 +91,11 @@ impl<'a> MacroScopeStack<'a> {
         None
     }
 
+    #[cfg(feature = "full")]
+    pub fn is_defined(&self, name: &str) -> bool {
+        self.get(name).map_or(false, |x| !x.text.is_empty())
+    }
+
     pub fn expand<#[cfg(feature = "full")] R: BufRead>(
         &self,
         text: &TokenString,