From 5aaa27632c83df8c184a1b8b74c1e54e06371ee3 Mon Sep 17 00:00:00 2001
From: Raymon Zutekouw <40148684+Raymonzut@users.noreply.github.com>
Date: Tue, 4 Jan 2022 23:25:10 +0100
Subject: [PATCH] Implement delvar

---
 src/main.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 04166bc..063173e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -92,7 +92,9 @@ fn instruct(statement: Pair<Rule>, state: &mut State, out: &mut Builder) {
         Rule::delvar => {
             let variable_name = extract_operand(statement);
             println!("Deletion of variable '{}'", variable_name);
-            out.append("delvar\n");
+            if let None = state.variables.remove(&String::from(variable_name)) {
+                panic!("Variable '{}' did not exists", variable_name);
+            }
         }
         Rule::point => {
             let variable_name = extract_operand(statement);