required-stack-effect ( word -- effect )


Vocabulary
stack-checker.backend

Inputs
worda word


Outputs
effectan effect


Word description
Gets the stack effect of the word, or throws an error if it doesn't have one.

Definition
USING: effects kernel stack-checker.errors ;

IN: stack-checker.backend

: required-stack-effect ( word -- effect )
[ stack-effect ] [ missing-effect ] ?unless ;