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Diffstat (limited to 'posts')
| -rw-r--r-- | posts/2022-10-05-goops-issues.md | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/posts/2022-10-05-goops-issues.md b/posts/2022-10-05-goops-issues.md index a85c552..c9925b3 100644 --- a/posts/2022-10-05-goops-issues.md +++ b/posts/2022-10-05-goops-issues.md @@ -88,7 +88,7 @@ Here's what those look like in Common Lisp: ((name :initarg :name :accessor name))) (defmethod greet ((p person)) - (format t "You: 'Hello ~a!'~&" (name p))) + (format t "You: 'Hello, ~a!'~&" (name p))) (defmethod greet :before ((p person)) (format t "> You gather the courage to talk to ~a.~&" (name p))) @@ -104,6 +104,16 @@ Here's what those look like in Common Lisp: (greet (make-instance 'person :name "Alice")) ``` +Expected output: + +``` +> You take a deep breath. +> You gather the courage to talk to Alice. +Hello, Alice! +> That wasn't so bad. +> You are socially exhausted. You should rest. +``` + I often want to tack on some logic before or after a method, so these qualifiers are extremely useful and they compose nicely with inheritance because child classes that implement more specialized |