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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

49 lines
1.3 KiB
Common Lisp
Vendored
Generated

;;-*-Lisp-*-
(in-package goal)
;; definition of type draw-node
(deftype draw-node (drawable)
((child-count uint8 :offset 6)
(flags uint8 :offset 7)
(child drawable :offset 8)
(distance float :offset 12)
)
)
;; definition for method 3 of type draw-node
(defmethod inspect ((this draw-node))
(format #t "[~8x] ~A~%" this (-> this type))
(format #t "~Tid: ~D~%" (-> this id))
(format #t "~Tbsphere: ~`vector`P~%" (-> this bsphere))
(format #t "~Tchild-count: ~D~%" (-> this child-count))
(format #t "~Tflags: ~D~%" (-> this flags))
(format #t "~Tchild: #x~X~%" (-> this child))
(format #t "~Tdistance: #x~X~%" (-> this distance))
this
)
;; definition of type drawable-inline-array-node
(deftype drawable-inline-array-node (drawable-inline-array)
((data draw-node 1 :inline)
(pad uint32)
)
)
;; definition of type draw-node-dma
(deftype draw-node-dma (structure)
((banka draw-node 32 :inline)
(bankb draw-node 32 :inline)
)
)
;; definition for method 3 of type draw-node-dma
(defmethod inspect ((this draw-node-dma))
(format #t "[~8x] ~A~%" this 'draw-node-dma)
(format #t "~Tbanka[32] @ #x~X~%" (-> this banka))
(format #t "~Tbankb[32] @ #x~X~%" (-> this bankb))
this
)
;; failed to figure out what this is:
0