This is know as dynamic scope, as opposed to lexical scope: https://en.wikipedia.org/wiki/Scope_(computer_science)#Lexical_scope_vs._dynamic_scope_2 https://en.

This is know as dynamic scope, as opposed to lexical scope: https://en.wikipedia.org/wiki/Scope_(computer_science)#Lexical_scope_vs._dynamic_scope_2 https://en.wikipedia.org/wiki/Scope_(computer_science)#Lexic...