From 5706a8109873c001cae11c42b6d98a2d883b8109 Mon Sep 17 00:00:00 2001
From: Sofia <sofia@teascade.net>
Date: Mon, 13 Apr 2026 00:24:18 +0300
Subject: [PATCH] Separate errors to own header-file

---
 src/codegen.cpp   |  7 ++++---
 src/codegen.h     |  7 -------
 src/errors.h      | 15 +++++++++++++++
 src/main.cpp      |  3 ++-
 src/typechecker.h | 18 ++++++++++++++++++
 5 files changed, 39 insertions(+), 11 deletions(-)
 create mode 100644 src/errors.h
 create mode 100644 src/typechecker.h

diff --git a/src/codegen.cpp b/src/codegen.cpp
index 844f7e8..4ea381a 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -1,6 +1,7 @@
 #include "codegen.h"
 #include "ast.h"
 #include "types.h"
+#include "errors.h"
 
 #include <llvm/IR/Module.h>
 #include <llvm/IR/Verifier.h>
@@ -53,7 +54,7 @@ namespace AST {
             }
         }
         else {
-            throw codegen::Error("Value " + this->m_name + " not found", this->m_meta);
+            throw CompileError("Value " + this->m_name + " not found", this->m_meta);
         }
     }
 
@@ -87,11 +88,11 @@ namespace AST {
                     std::make_shared<types::FundamentalType>(types::FundamentalTypeKind::Bool),
                 };
             default:
-                throw codegen::Error("invalid binop", this->m_meta);
+                throw CompileError("invalid binop", this->m_meta);
             }
         }
         catch (std::runtime_error& error) {
-            throw codegen::Error(error.what(), this->m_meta);
+            throw CompileError(error.what(), this->m_meta);
         }
     }
 
diff --git a/src/codegen.h b/src/codegen.h
index c5eb939..84552f8 100644
--- a/src/codegen.h
+++ b/src/codegen.h
@@ -11,13 +11,6 @@
 #include "tokens.h"
 
 namespace codegen {
-    class Error : public std::runtime_error {
-    public:
-        token::Metadata m_meta;
-        Error(std::string text, token::Metadata meta)
-            : std::runtime_error{ text }, m_meta{ meta } {}
-    };
-
     struct StackValue {
         llvm::Value* value = nullptr;
         std::shared_ptr<types::Type> ty = nullptr;
diff --git a/src/errors.h b/src/errors.h
new file mode 100644
index 0000000..9a3a46a
--- /dev/null
+++ b/src/errors.h
@@ -0,0 +1,15 @@
+#ifndef ERRORS_H
+#define ERRORS_H
+
+#include <memory>
+
+#include "tokens.h"
+
+class CompileError : public std::runtime_error {
+public:
+    token::Metadata m_meta;
+    CompileError(std::string text, token::Metadata meta)
+        : std::runtime_error{ text }, m_meta{ meta } {}
+};
+
+#endif
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index fe5f909..5534955 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -19,6 +19,7 @@
 
 #include "tokens.h"
 #include "parsing.h"
+#include "errors.h"
 
 std::string read_file(std::string_view filepath) {
     std::ifstream input{ std::string{filepath} };
@@ -103,7 +104,7 @@ std::optional<CompileOutput> compile(std::string_view in_filename) {
             tls->codegen(builder, scope);
         }
     }
-    catch (codegen::Error& error) {
+    catch (CompileError& error) {
         std::cerr << "FATAL: " << error.what() << std::endl;
         std::cerr << "   at " << error.m_meta.start.line + 1 << ":" << error.m_meta.start.col + 1;
         std::cerr << " to " << error.m_meta.end.line + 1 << ":" << error.m_meta.end.col + 1 << std::endl;
diff --git a/src/typechecker.h b/src/typechecker.h
new file mode 100644
index 0000000..5319f25
--- /dev/null
+++ b/src/typechecker.h
@@ -0,0 +1,18 @@
+#ifndef TYPECHECK_H
+#define TYPECHECK_H
+
+#include <map>
+
+#include "types.h"
+
+namespace typecheck {
+    struct Scope {
+        std::map<std::string, types::Type> symbols;
+    };
+
+    struct State {
+
+    };
+}
+
+#endif
\ No newline at end of file