From 9eddfd75bc7440133c7d0a487be672aa432c5b3c Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Tue, 28 May 2024 13:32:56 +0200
Subject: [PATCH] added assign implementation

---
 src/llvm/func.c | 20 ++++++++++++++++++++
 src/llvm/stmt.c | 28 ++++++++++++++++++++++++++++
 src/llvm/stmt.h |  9 +++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 src/llvm/stmt.c
 create mode 100644 src/llvm/stmt.h

diff --git a/src/llvm/func.c b/src/llvm/func.c
index c9a4e65..5c6024d 100644
--- a/src/llvm/func.c
+++ b/src/llvm/func.c
@@ -9,6 +9,26 @@
 #include <sys/log.h>
 #include <llvm/func.h>
 
+static LLVMValueRef get_parameter(const LLVMFuncScope* scope, const char* name) {
+    if (g_hash_table_contains(scope->params, name)) {
+        return g_hash_table_lookup(scope->params, name);
+    }
+
+    return NULL;
+}
+
+LLVMValueRef get_variable(const LLVMLocalScope* scope, const char* name) {
+    if (g_hash_table_contains(scope->vars, name)) {
+        return g_hash_table_lookup(scope->vars, name);
+    }
+
+    if (scope->parent_scope != NULL) {
+        return get_variable(scope->parent_scope, name);
+    }
+
+    return get_parameter(scope->func_scope, name);
+}
+
 BackendError impl_param_type(LLVMBackendCompileUnit* unit,
                              LLVMGlobalScope* scope, Paramer* param,
                              LLVMTypeRef* llvm_type) {
diff --git a/src/llvm/stmt.c b/src/llvm/stmt.c
new file mode 100644
index 0000000..98fec0f
--- /dev/null
+++ b/src/llvm/stmt.c
@@ -0,0 +1,28 @@
+//
+// Created by servostar on 5/28/24.
+//
+
+#include <codegen/backend.h>
+#include <llvm/func.h>
+#include <llvm/parser.h>
+#include <llvm/stmt.h>
+
+BackendError impl_assign_stmt(LLVMBackendCompileUnit* unit,
+                              LLVMBuilderRef builder, LLVMLocalScope* scope,
+                              Assignment* assignment) {
+    // TODO: resolve expression to LLVMValueRef
+    const LLVMValueRef llvm_value = NULL;
+
+    switch (assignment->variable->kind) {
+        case VariableKindDeclaration:
+        case VariableKindDefinition:
+            const LLVMValueRef llvm_ptr =
+                get_variable(scope, assignment->variable->name);
+            LLVMBuildStore(builder, llvm_value, llvm_ptr);
+            break;
+        case VariableKindBoxMember:
+            break;
+    }
+}
+
+BackendError impl_stmt(LLVMBackendCompileUnit* unit, Statement* stmt) {}
diff --git a/src/llvm/stmt.h b/src/llvm/stmt.h
new file mode 100644
index 0000000..bde984d
--- /dev/null
+++ b/src/llvm/stmt.h
@@ -0,0 +1,9 @@
+//
+// Created by servostar on 5/28/24.
+//
+
+#ifndef LLVM_BACKEND_STMT_H
+#define LLVM_BACKEND_STMT_H
+
+
+#endif // LLVM_BACKEND_STMT_H