:: word ( vars... -- outputs... ) body... ;Word description
Defines a word with named inputs. The word binds its input values to lexical variables from left to right, then executes the body with those bindings in scope.
If any var
name is followed by an exclamation point (!
), the corresponding new variable is made mutable. See Mutable lexical variables
for more information.Notes
The names of the outputs
do not affect the word's behavior. However, the compiler verifies that the stack effect accurately represents the number of outputs as with :
See Examples of lexical variables