From ea55b08698329defe9155ba89f013efc9350a861 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Fri, 28 Jun 2024 11:19:23 -0400
Subject: shortcut push-pops; don't env-copy functions

---
 var.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'var.cpp')

diff --git a/var.cpp b/var.cpp
index c907d7a..f4d64fd 100644
--- a/var.cpp
+++ b/var.cpp
@@ -33,6 +33,23 @@ Var Var::lookup(const std::string& name, int skip)
     return {};
 }
 
+void Var::rename(const std::string& old, const std::string& neww, int skip)
+{
+    for (auto sc = vars.rbegin(); sc != vars.rend(); ++sc) {
+        if (skip > 0) {
+            --skip;
+            continue;
+        }
+        if (sc->contains(old)) {
+            auto it = sc->find(old);
+            (*sc)[neww] = it->second;
+            //it->second.value->setName(neww);
+            sc->erase(it);
+            break;
+        }
+    }
+}
+
 Var Var::lookupLocal(const std::string& name)
 {
     return vars.back().contains(name) ? vars.back()[name] : Var();
-- 
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