no-method ( arguments generic -- * )

Vocabulary

multi-methods

Definition

IN: multi-methods

ERROR: no-method arguments generic ;

Methods

USING: accessors assocs classes debugger io kernel multi-methods
prettyprint sequences ;

M: no-method error.
    "Type check error" print nl "Generic word " write
    dup generic>> pprint
    " does not have a method applicable to inputs:" print
    dup arguments>> short. nl "Inputs have signature:" print
    dup arguments>> [ class-of ] map niceify-method .
    nl "Available methods: " print
    generic>> methods canonicalize-specializers drop
    sort-methods keys [ niceify-method ] map stack. ;