From 05bbe1fdf143652ae62fcc1e121babb6ec76726b Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Sat, 3 Apr 2021 19:03:13 -0600
Subject: do not infinitely recurse ever

---
 src/makefile/mod.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/makefile/mod.rs b/src/makefile/mod.rs
index e004586..c81526b 100644
--- a/src/makefile/mod.rs
+++ b/src/makefile/mod.rs
@@ -5,7 +5,7 @@ use std::fmt;
 use std::path::{Path, PathBuf};
 use std::rc::Rc;
 
-use eyre::{eyre, Result};
+use eyre::{bail, eyre, Result};
 
 use crate::args::Args;
 
@@ -36,6 +36,7 @@ pub struct Makefile<'a> {
     pub first_non_special_target: Option<String>,
     args: &'a Args,
     // TODO borrow warnings from Python version
+    fucking_bullshit_recursion_stack: RefCell<Vec<String>>,
 }
 
 impl<'a> Makefile<'a> {
@@ -73,6 +74,7 @@ impl<'a> Makefile<'a> {
             targets: RefCell::new(targets),
             first_non_special_target,
             args,
+            fucking_bullshit_recursion_stack: RefCell::new(Vec::new()),
         }
     }
 
@@ -101,6 +103,16 @@ impl<'a> Makefile<'a> {
     }
 
     pub fn get_target(&self, name: &str) -> Result<Rc<RefCell<Target>>> {
+        if self
+            .fucking_bullshit_recursion_stack
+            .borrow()
+            .contains(&name.to_owned())
+        {
+            bail!("no infinite recursion allowed");
+        }
+        self.fucking_bullshit_recursion_stack
+            .borrow_mut()
+            .push(name.to_owned());
         // TODO implement .POSIX
         let follow_gnu = cfg!(feature = "full");
 
@@ -206,6 +218,8 @@ impl<'a> Makefile<'a> {
                 .insert(new_target.name.clone(), Rc::new(RefCell::new(new_target)));
         }
 
+        self.fucking_bullshit_recursion_stack.borrow_mut().pop();
+
         let targets = self.targets.borrow();
         Ok(Rc::clone(
             targets
-- 
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