[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

1 files changed, 62 insertions, 0 deletions

diff --git a/vendor/github.com/tetratelabs/wazero/experimental/sys/syscall_errno_windows.go b/vendor/github.com/tetratelabs/wazero/experimental/sys/syscall_errno_windows.go
new file mode 100644
index 000000000..761a1f9dc
--- /dev/null
+++ b/vendor/github.com/tetratelabs/wazero/experimental/sys/syscall_errno_windows.go
@@ -0,0 +1,62 @@
+package sys
+
+import "syscall"
+
+// These are errors not defined in the syscall package. They are prefixed with
+// underscore to avoid exporting them.
+//
+// See https://learn.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
+const (
+	// _ERROR_INVALID_HANDLE is a Windows error returned by syscall.Write
+	// instead of syscall.EBADF
+	_ERROR_INVALID_HANDLE = syscall.Errno(6)
+
+	// _ERROR_INVALID_NAME is a Windows error returned by open when a file
+	// path has a trailing slash
+	_ERROR_INVALID_NAME = syscall.Errno(0x7B)
+
+	// _ERROR_NEGATIVE_SEEK is a Windows error returned by os.Truncate
+	// instead of syscall.EINVAL
+	_ERROR_NEGATIVE_SEEK = syscall.Errno(0x83)
+
+	// _ERROR_DIRECTORY is a Windows error returned by syscall.Rmdir
+	// instead of syscall.ENOTDIR
+	_ERROR_DIRECTORY = syscall.Errno(0x10B)
+
+	// _ERROR_INVALID_SOCKET is a Windows error returned by winsock_select
+	// when a given handle is not a socket.
+	_ERROR_INVALID_SOCKET = syscall.Errno(0x2736)
+)
+
+func errorToErrno(err error) Errno {
+	switch err := err.(type) {
+	case Errno:
+		return err
+	case syscall.Errno:
+		// Note: In windows, _ERROR_PATH_NOT_FOUND(0x3) maps to syscall.ENOTDIR
+		switch err {
+		case syscall.ERROR_ALREADY_EXISTS:
+			return EEXIST
+		case _ERROR_DIRECTORY:
+			return ENOTDIR
+		case syscall.ERROR_DIR_NOT_EMPTY:
+			return ENOTEMPTY
+		case syscall.ERROR_FILE_EXISTS:
+			return EEXIST
+		case _ERROR_INVALID_HANDLE, _ERROR_INVALID_SOCKET:
+			return EBADF
+		case syscall.ERROR_ACCESS_DENIED:
+			// POSIX read and write functions expect EBADF, not EACCES when not
+			// open for reading or writing.
+			return EBADF
+		case syscall.ERROR_PRIVILEGE_NOT_HELD:
+			return EPERM
+		case _ERROR_NEGATIVE_SEEK, _ERROR_INVALID_NAME:
+			return EINVAL
+		}
+		errno, _ := syscallToErrno(err)
+		return errno
+	default:
+		return EIO
+	}
+}