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d952475c77
* [glist/glist-h] Decompile this stupidity * [glist] fix macros * [glist] fix return types
110 lines
2.3 KiB
Common Lisp
110 lines
2.3 KiB
Common Lisp
;;-*-Lisp-*-
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(in-package goal)
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;; name: glist-h.gc
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;; name in dgo: glist-h
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;; dgos: GAME, ENGINE
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;; This whole linked list system is hellspawn! Whoever made this is insane and a danger to society
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(when *debug-segment*
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(deftype glst-node (structure)
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((next glst-node :offset-assert 0)
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(prev glst-node :offset-assert 4)
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)
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:method-count-assert 9
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:size-assert #x8
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:flag-assert #x900000008
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)
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(deftype glst-named-node (glst-node)
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((privname string :offset-assert 8)
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)
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:method-count-assert 9
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:size-assert #xc
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:flag-assert #x90000000c
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)
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(deftype glst-list (structure)
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((head glst-node :offset-assert 0)
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(tail glst-node :offset-assert 4)
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(tailpred glst-node :offset-assert 8)
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(numelem int32 :offset-assert 12)
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)
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:method-count-assert 9
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:size-assert #x10
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:flag-assert #x900000010
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)
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;; FUN FACT! The "defun" macro only checks if the first item in the function body is a
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;; string (the docstring), but because these functions were marked as inline (or debug)
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;; BEFORE the docstring, they end up being considered part of the body and the compiled output!
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;; This amusing mistake is reproduced here.
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(defun-debug glst-next ((node glst-node))
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(declare (inline))
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"return the next node in the list"
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(-> node next)
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)
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(defun-debug glst-prev ((node glst-node))
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(declare (inline))
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"return the previous node in the list"
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(-> node prev)
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)
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(defun-debug glst-head ((list glst-list))
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(declare (inline))
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"return the start of the list"
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(-> list head)
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)
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(defun-debug glst-tail ((list glst-list))
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(declare (inline))
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"return the tail of the list"
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(-> list tailpred)
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)
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(defun-debug glst-end-of-list? ((node glst-node))
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(declare (inline))
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"is this node the end of the list. #t = end"
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(not (-> node next))
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)
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(defun-debug glst-start-of-list? ((node glst-node))
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(declare (inline))
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"is this node the start of the list. #t = start"
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(not (-> node prev))
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)
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(defun-debug glst-empty? ((list glst-list))
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(declare (inline))
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"is the list empty, #t = empty"
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(= (-> list tailpred) (&-> list head))
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)
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(defun-debug glst-node-name ((node glst-named-node))
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"Return the name of the node"
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(-> node privname)
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)
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(defun-debug glst-set-name! ((node glst-named-node) (name string))
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"Set the name of the node"
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(set! (-> node privname) name)
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)
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)
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