adding conversions for symbols and keywords to strings

src/types.rs

@@ -49,6 +49,13 @@ impl Value {
             _ => Err(miette!("No function here, shouldn't call apply")),
         }
     }
+
+    pub fn is_list(&self) -> bool {
+        match self {
+            Self::List(_) => true,
+            _ => false,
+        }
+    }
 }
 
 impl From<Vec<Value>> for Value {
@@ -104,6 +111,8 @@ impl From<Value> for String {
     fn from(value: Value) -> Self {
         match value {
             Value::String(str) => str,
+            Value::Symbol(Symbol(str)) => str,
+            Value::Keyword(Keyword(str)) => str,
             _ => String::default(),
         }
     }
@@ -113,6 +122,8 @@ impl From<&Value> for String {
     fn from(value: &Value) -> Self {
         match value {
             Value::String(str) => str.clone(),
+            Value::Symbol(Symbol(str)) => str.clone(),
+            Value::Keyword(Keyword(str)) => str.clone(),
             _ => String::default(),
         }
     }