IO: print the filemode as string

src/modules/io/File.cpp

@@ -32,9 +32,16 @@ void trackOpenedFile(const core::String &path, FileMode mode) {
 		return;
 	}
 	const bool alreadyOpened = _openedFiles.hasKey(absPath);
-	core_assert_msg(!alreadyOpened, "File %s is already opened in mode %i - this will produce problems on windows", path.c_str(), (int)mode);
 	if (alreadyOpened) {
-		Log::error("File %s is already opened in mode %i", path.c_str(), (int)mode);
+		FileMode openedMode;
+		core_assert_always(_openedFiles.get(absPath, openedMode));
+		core_assert_msg(
+			!alreadyOpened,
+			"File %s is already opened (opened mode %s, new mode %s) - this will produce problems on windows",
+			path.c_str(), FileModeStr[(int)openedMode], FileModeStr[(int)mode]);
+
+		Log::error("File %s is already opened (opened mode %s, new mode %s)", path.c_str(),
+				   FileModeStr[(int)openedMode], FileModeStr[(int)mode]);
 		return;
 	}
 	Log::debug("open file: %s", absPath.c_str());

src/modules/io/File.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include "core/ArrayLength.h"
 #include "core/String.h"
 #include "core/SharedPtr.h"
 #include "IOResource.h"
@@ -22,9 +23,20 @@ enum class FileMode {
 	Append,		/**< appending to an existing file or create a new one */
 	SysRead,	/**< reading from the given path - using virtual paths as fallback */
 	SysWrite,	/**< writing into the given path */
-	ReadNoHome	/**< reading from the virtual file system but skip user setting files in the home directories */
+	ReadNoHome,	/**< reading from the virtual file system but skip user setting files in the home directories */
+	Max
 };
 
+static const char * FileModeStr[] = {
+	"Read",
+	"Write",
+	"Append",
+	"SysRead",
+	"SysWrite",
+	"ReadNoHome",
+};
+static_assert(lengthof(FileModeStr) == (size_t)FileMode::Max, "FileModeStr is incomplete");
+
 /**
  * @sa core::string::sanitizeDirPath()
  */