From e04ad073662ccbc1e64de9bf867bba5c7b86db3e Mon Sep 17 00:00:00 2001
From: Empa <emanuel@empa.xyz>
Date: Sat, 3 Feb 2024 01:09:24 +0100
Subject: [PATCH] Add native function

---
 crates/saft-bytecode/src/value.rs | 13 +++++++++++++
 crates/saft/src/lib.rs            | 10 ++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/crates/saft-bytecode/src/value.rs b/crates/saft-bytecode/src/value.rs
index f167b6a..e94a695 100644
--- a/crates/saft-bytecode/src/value.rs
+++ b/crates/saft-bytecode/src/value.rs
@@ -289,6 +289,19 @@ impl Cast<f64> for Value {
     }
 }
 
+impl Cast<String> for Value {
+    fn name() -> String {
+        "string".into()
+    }
+
+    fn cast(&self) -> Option<String> {
+        match self {
+            Value::String(s) => Some(s.clone()),
+            _ => None,
+        }
+    }
+}
+
 pub enum ValueType {
     Nil,
     Bool,
diff --git a/crates/saft/src/lib.rs b/crates/saft/src/lib.rs
index c828947..2169e0f 100644
--- a/crates/saft/src/lib.rs
+++ b/crates/saft/src/lib.rs
@@ -1,5 +1,6 @@
 use std::rc::Rc;
 
+use bytecode::natives;
 use codespan_reporting::{
     files::SimpleFiles,
     term::{self, termcolor::StandardStream},
@@ -22,10 +23,11 @@ impl Saft {
     pub fn new() -> Self {
         let mut lowerer = saft_ast_to_ir::Lowerer::new();
 
-        lowerer.add_item(
-            "print".into(),
-            saft_ir::Item::Builtin(bytecode::natives::print),
-        );
+        let mut add_native = |native: bytecode::value::NativeFunction| {
+            lowerer.add_item(native.name.to_string(), saft_ir::Item::Builtin(native));
+        };
+
+        add_native(natives::print);
 
         Self {
             lowerer,