From 37217cf1b921a2a6e128b6134518912f0bd57f62 Mon Sep 17 00:00:00 2001
From: Mel <mel@rnrd.eu>
Date: Mon, 30 Jun 2025 23:15:23 +0200
Subject: Factor out translation unit includes to seperate header

This allows both the usual build compiler and an LSP server like `clangd`
to correctly locate symbols throughout every subunit.

Signed-off-by: Mel <mel@rnrd.eu>
---
 boot/catboot.c |  6 +-----
 boot/catboot.h | 20 ++++++++++++++++++++
 boot/common.c  |  4 ++++
 boot/lex.c     |  4 ++++
 boot/parse.c   |  4 ++++
 boot/tree.c    |  4 ++++
 boot/visit.c   |  4 ++++
 7 files changed, 41 insertions(+), 5 deletions(-)
 create mode 100644 boot/catboot.h

(limited to 'boot')

diff --git a/boot/catboot.c b/boot/catboot.c
index f716e4f..fac6273 100644
--- a/boot/catboot.c
+++ b/boot/catboot.c
@@ -24,11 +24,7 @@
 #include <sys/mman.h>
 #include <sys/stat.h>
 
-#include "common.c"
-#include "lex.c"
-#include "tree.c"
-#include "parse.c"
-#include "visit.c"
+#include "catboot.h"
 
 const ascii*
 read_file(const ascii* path)
diff --git a/boot/catboot.h b/boot/catboot.h
new file mode 100644
index 0000000..4c40676
--- /dev/null
+++ b/boot/catboot.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2025, Mel G. <mel@rnrd.eu>
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ */
+
+#pragma once
+
+// include all partial translation units, for correct language server behaviour
+// despite the fact that single translation units are not yet supported.
+
+// when included in the root of the translation unit, this will compile the whole project,
+// however if included in a partial subunit, the `#pragma once` in the subunit will prevent
+// multiple inclusions of the itself, only adding other files, thus allowing for an LSP like `clang`
+// to find the definitions of all other functions and types in the project.
+#include "common.c"
+#include "lex.c"
+#include "tree.c"
+#include "parse.c"
+#include "visit.c"
diff --git a/boot/common.c b/boot/common.c
index 22ee50a..cf9aa46 100644
--- a/boot/common.c
+++ b/boot/common.c
@@ -8,6 +8,10 @@
  * SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
+
+#include "catboot.h"
+
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/boot/lex.c b/boot/lex.c
index 5b91187..f450798 100644
--- a/boot/lex.c
+++ b/boot/lex.c
@@ -7,6 +7,10 @@
  * SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
+
+#include "catboot.h"
+
 #define MAX_CHAR_BUFFER_SIZE 256
 
 // byte position within a file.
diff --git a/boot/parse.c b/boot/parse.c
index 6aa61f7..d410476 100644
--- a/boot/parse.c
+++ b/boot/parse.c
@@ -7,6 +7,10 @@
  * SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
+
+#include "catboot.h"
+
 #define PARSER_LOOKAHEAD 2
 
 #define CHECK(parse) \
diff --git a/boot/tree.c b/boot/tree.c
index cb5fd2a..1eb19a8 100644
--- a/boot/tree.c
+++ b/boot/tree.c
@@ -6,6 +6,10 @@
  * SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
+
+#include "catboot.h"
+
 enum Unary_Operation
 {
     UNARY_NONE,
diff --git a/boot/visit.c b/boot/visit.c
index 24f033a..c297fb4 100644
--- a/boot/visit.c
+++ b/boot/visit.c
@@ -9,6 +9,10 @@
  * SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
+
+#include "catboot.h"
+
 struct Visit
 {
     struct Visit_Table* table;
-- 
cgit 1.4.1