repl: move LLVM specific logic into roc_repl_cli

repl_eval/src/lib.rs

@@ -1,3 +1,41 @@
-mod app_memory;
-mod eval;
+use roc_parse::ast::Expr;
+
+pub mod app_memory;
+pub mod eval;
 pub mod gen;
+
+pub trait ReplApp {
+    fn deref_bool(&self, addr: usize) -> bool;
+
+    fn deref_u8(&self, addr: usize) -> u8;
+    fn deref_u16(&self, addr: usize) -> u16;
+    fn deref_u32(&self, addr: usize) -> u32;
+    fn deref_u64(&self, addr: usize) -> u64;
+    fn deref_u128(&self, addr: usize) -> u128;
+    fn deref_usize(&self, addr: usize) -> usize;
+
+    fn deref_i8(&self, addr: usize) -> i8;
+    fn deref_i16(&self, addr: usize) -> i16;
+    fn deref_i32(&self, addr: usize) -> i32;
+    fn deref_i64(&self, addr: usize) -> i64;
+    fn deref_i128(&self, addr: usize) -> i128;
+    fn deref_isize(&self, addr: usize) -> isize;
+
+    fn deref_f32(&self, addr: usize) -> f32;
+    fn deref_f64(&self, addr: usize) -> f64;
+
+    fn deref_str(&self, addr: usize) -> &str;
+
+    fn call_function<'a, Return: Sized, F: Fn(Return) -> Expr<'a>>(
+        &self,
+        main_fn_name: &str,
+        transform: F,
+    ) -> Expr<'a>;
+
+    fn call_function_dynamic_size<'a, T: Sized, F: Fn(usize) -> T>(
+        &self,
+        main_fn_name: &str,
+        ret_bytes: usize,
+        transform: F,
+    ) -> T;
+}