Fix local devx (#39)

Author: 1yefuwang1

.clangd

@@ -0,0 +1,3 @@
+CompileFlags:
+  CompilationDatabase: build/dev
+  Add: [-DVECTORLITE_CLANGD=1]

vectorlite/ops/ops.cpp

@@ -13,7 +13,20 @@
 #undef HWY_TARGET_INCLUDE
 #define HWY_TARGET_INCLUDE "ops.cpp"
 // Generates code for each enabled target by re-including this source file.
+// VECTORLITE_CLANGD is defined via .clangd config. foreach_target.h re-includes
+// the main file, which breaks clangd's preamble builder.
+#ifdef VECTORLITE_CLANGD
+#include "hwy/detect_targets.h"
+#undef HWY_ONCE
+#define HWY_ONCE 1
+#undef HWY_TARGET
+#define HWY_TARGET HWY_STATIC_TARGET
+// Force HWY_IDE so highway.h uses simplified single-target HWY_EXPORT/DISPATCH.
+#undef HWY_IDE
+#define HWY_IDE 1
+#else
 #include "hwy/foreach_target.h"  // IWYU pragma: keep
+#endif
 
 // <<<< end of dynamic dispatch
 

vectorlite/vector.h

@@ -11,8 +11,6 @@
 #include "ops/ops.h"
 #include "rapidjson/document.h"
 #include "rapidjson/error/en.h"
-#include "rapidjson/stringbuffer.h"
-#include "rapidjson/writer.h"
 #include "util.h"
 #include "vector_space.h"
 #include "vector_view.h"

vectorlite/vector_view.h

@@ -8,7 +8,6 @@
 #include "hwy/base.h"
 #include "macros.h"
 #include "rapidjson/document.h"
-#include "rapidjson/error/en.h"
 #include "rapidjson/stringbuffer.h"
 #include "rapidjson/writer.h"
 #include "util.h"

vectorlite/vectorlite.cpp

@@ -1,13 +1,6 @@
-#include <string>
-#include <string_view>
-
-#include "absl/status/status.h"
-#include "absl/strings/str_format.h"
 #include "macros.h"
 #include "sqlite3ext.h"
 #include "sqlite_functions.h"
-#include "util.h"
-#include "vector_space.h"
 #include "virtual_table.h"
 
 SQLITE_EXTENSION_INIT1;