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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

44 lines
1.4 KiB
Common Lisp
Vendored
Generated

;;-*-Lisp-*-
(in-package goal)
;; definition of type __assert-info-private-struct
(deftype __assert-info-private-struct (structure)
((filename string)
(line-num uint16)
(column-num uint16)
)
(:methods
(set-pos (_type_ string uint uint) int)
(print-pos (_type_) int)
)
)
;; definition for method 3 of type __assert-info-private-struct
(defmethod inspect ((this __assert-info-private-struct))
(format #t "[~8x] ~A~%" this '__assert-info-private-struct)
(format #t "~Tfilename: ~A~%" (-> this filename))
(format #t "~Tline-num: ~D~%" (-> this line-num))
(format #t "~Tcolumn-num: ~D~%" (-> this column-num))
this
)
;; definition for method 9 of type __assert-info-private-struct
(defmethod set-pos ((this __assert-info-private-struct) (filename string) (line-num uint) (column-num uint))
(set! (-> this filename) filename)
(set! (-> this line-num) line-num)
(set! (-> this column-num) column-num)
0
)
;; definition for method 10 of type __assert-info-private-struct
(defmethod print-pos ((this __assert-info-private-struct))
(format #t "file ~S.gc, line ~D, col ~D.~%" (-> this filename) (-> this line-num) (-> this column-num))
0
)
;; definition for symbol *__private-assert-info*, type __assert-info-private-struct
(define *__private-assert-info* (new 'static '__assert-info-private-struct))
;; failed to figure out what this is:
0