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ManDude cd68cb671e deftype and defmethod syntax major changes (#3094)
Major change to how `deftype` shows up in our code:
- the decompiler will no longer emit the `offset-assert`,
`method-count-assert`, `size-assert` and `flag-assert` parameters. There
are extremely few cases where having this in the decompiled code is
helpful, as the types there come from `all-types` which already has
those parameters. This also doesn't break type consistency because:
  - the asserts aren't compared.
- the first step of the test uses `all-types`, which has the asserts,
which will throw an error if they're bad.
- the decompiler won't emit the `heap-base` parameter unless necessary
now.
- the decompiler will try its hardest to turn a fixed-offset field into
an `overlay-at` field. It falls back to the old offset if all else
fails.
- `overlay-at` now supports field "dereferencing" to specify the offset
that's within a field that's a structure, e.g.:
```lisp
(deftype foobar (structure)
  ((vec    vector  :inline)
   (flags  int32   :overlay-at (-> vec w))
   )
  )
```
in this structure, the offset of `flags` will be 12 because that is the
final offset of `vec`'s `w` field within this structure.
- **removed ID from all method declarations.** IDs are only ever
automatically assigned now. Fixes #3068.
- added an `:overlay` parameter to method declarations, in order to
declare a new method that goes on top of a previously-defined method.
Syntax is `:overlay <method-name>`. Please do not ever use this.
- added `state-methods` list parameter. This lets you quickly specify a
list of states to be put in the method table. Same syntax as the
`states` list parameter. The decompiler will try to put as many states
in this as it can without messing with the method ID order.

Also changes `defmethod` to make the first type definition (before the
arguments) optional. The type can now be inferred from the first
argument. Fixes #3093.

---------

Co-authored-by: Hat Kid <6624576+Hat-Kid@users.noreply.github.com>
2023-10-30 03:20:02 +00:00

63 lines
1.5 KiB
Common Lisp
Vendored
Generated

;;-*-Lisp-*-
(in-package goal)
;; definition of type game-text
(deftype game-text (structure)
((id text-id)
(text string)
)
:pack-me
)
;; definition for method 3 of type game-text
(defmethod inspect ((this game-text))
(when (not this)
(set! this this)
(goto cfg-4)
)
(format #t "[~8x] ~A~%" this 'game-text)
(format #t "~1Tid: ~D~%" (-> this id))
(format #t "~1Ttext: ~A~%" (-> this text))
(label cfg-4)
this
)
;; definition of type game-text-info
(deftype game-text-info (basic)
((length int32)
(language-id int32)
(group-name string)
(data game-text :inline :dynamic)
)
(:methods
(lookup-text! (_type_ text-id symbol) string)
)
)
;; definition for method 3 of type game-text-info
(defmethod inspect ((this game-text-info))
(when (not this)
(set! this this)
(goto cfg-4)
)
(format #t "[~8x] ~A~%" this (-> this type))
(format #t "~1Tlength: ~D~%" (-> this length))
(format #t "~1Tlanguage-id: ~D~%" (-> this language-id))
(format #t "~1Tgroup-name: ~A~%" (-> this group-name))
(format #t "~1Tdata[0] @ #x~X~%" (-> this data))
(label cfg-4)
this
)
;; definition for symbol *text-group-names*, type (array string)
(define *text-group-names* (new 'static 'boxed-array :type string "common"))
;; definition for symbol *common-text-heap*, type kheap
(define *common-text-heap* (new 'global 'kheap))
;; definition for symbol *common-text*, type game-text-info
(define *common-text* (the-as game-text-info #f))
;; failed to figure out what this is:
0