modified codegen backend to use set module

src/codegen/backend.c

@@ -1,4 +1,5 @@
 
+#include "set/types.h"
 #include <codegen/backend.h>
 #include <sys/log.h>
 
@@ -67,7 +68,7 @@ BackendError set_backend(const codegen_init init_func, const codegen_deinit dein
     return new_backend_error(Success);
 }
 
-BackendError generate_code(const AST_NODE_PTR root, void** output) {
+BackendError generate_code(const Module* root, void** output) {
     DEBUG("generating code with backend: %s", CodegenBackend.name);
 
     if (CodegenBackend.codegen_func == NULL) {

src/codegen/backend.h

@@ -2,6 +2,7 @@
 #ifndef CODEGN_BACKEND_H_
 #define CODEGN_BACKEND_H_
 
+#include <set/types.h>
 #include <ast/ast.h>
 
 typedef struct BackendImplError_t {
@@ -29,7 +30,7 @@ typedef struct BackendError_t {
  * @brief Function called by the compiler backend to generate an intermediate format
  *        from AST. Returns a custom container for its intermediate language.
  */
-typedef BackendError (*codegen)(const AST_NODE_PTR, void**);
+typedef BackendError (*codegen)(const Module*, void**);
 
 /**
  * @brief Initialize the code generation backend.
@@ -77,7 +78,7 @@ BackendError deinit_backend(void);
  * @return BackendError 
  */
 [[nodiscard]]
-BackendError generate_code(const AST_NODE_PTR root, void** code);
+BackendError generate_code(const Module* root, void** code);
 
 /**
  * @brief Create a new backend error

src/llvm/backend.c

@@ -10,7 +10,7 @@ typedef enum LLVMBackendError_t {
     UnresolvedImport
 } LLVMBackendError;
 
-static BackendError llvm_backend_codegen(const AST_NODE_PTR module_node, void**) {
+static BackendError llvm_backend_codegen(const Module* unit, void**) {
     // we start with a LLVM module
     LLVMContextRef context = LLVMContextCreate();
     LLVMModuleRef module = LLVMModuleCreateWithNameInContext("gemstone application", context);