refactor: centralize box type metadata

src/backend/llvm/compiler/mod.rs

@@ -0,0 +1,27 @@
+use crate::box_trait::NyashBox;
+use crate::mir::ValueId;
+use std::collections::HashMap;
+
+pub struct LLVMCompiler {
+    values: HashMap<ValueId, Box<dyn NyashBox>>,
+}
+
+#[cfg(not(feature = "llvm"))]
+mod mock;
+#[cfg(not(feature = "llvm"))]
+pub use mock::*;
+
+#[cfg(feature = "llvm")]
+mod real;
+#[cfg(feature = "llvm")]
+pub use real::*;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_llvm_module_creation() {
+        assert!(true);
+    }
+}