name length 1 + :> name-buffer-length
{
index name-buffer-length dup
- [ f 0 <int> 0 <int> ] dip <byte-array>
+ [ f 0 int <ref> 0 int <ref> ] dip <byte-array>
[ glGetTransformFeedbackVarying ] 3keep
ascii alien>string
vertex-attribute assert-feedback-attribute