Perhaps it would be useful to describe a program type that only does one pass through its source. No loops or function calls. It may be useful to describe a sin

Perhaps it would be useful to describe a program type that only does one pass through its source. No loops or function calls. It may be useful to describe a single block of reusable sections, which cannot refer to itself in whole or part, to reduce program redundancy. Or rely on compression algorithms to remove the need for even that. The one pass part would be something like a shader language.