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authorAlasdair Armstrong2018-03-20 17:57:20 +0000
committerAlasdair Armstrong2018-03-22 18:58:59 +0000
commite33c8546e005fba30ff882b188c86ca03d0917c8 (patch)
treecf72fc3066962718d26a76baedd2d11a7be16946 /src/parser.mly
parent0860deb52e55b11e39e3470290e07f861f877483 (diff)
Fix C compilation for CHERI and MIPS
First, the specialisation of option types has been fixed by allowing the specialisation of constructor return types - this essentially means that a constructor, such as Some : 'a -> option('a) can get specialised to int -> option(int), rather than int -> option('a). This means that these constructors are treated like GADTs internally. Since this only happens just before the C translation, I haven't put much effort into making this very robust so far. Second, there was a bug in C compilation for the typing of return expressions in non-unit contexts, which has been fixed. Finally support for vector literals that are non-bitvectors has been added.
Diffstat (limited to 'src/parser.mly')
-rw-r--r--src/parser.mly2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/parser.mly b/src/parser.mly
index 40bece90..97b6f28c 100644
--- a/src/parser.mly
+++ b/src/parser.mly
@@ -1164,6 +1164,8 @@ struct_fields:
type_union:
| id Colon typ
{ Tu_aux (Tu_ty_id ($3, $1), loc $startpos $endpos) }
+ | id Colon typ MinusGt typ
+ { (fun s e -> Tu_aux (Tu_ty_id (mk_typ (ATyp_fn ($3, $5, mk_typ (ATyp_set []) s e)) s e, $1), loc s e)) $startpos $endpos }
type_unions:
| type_union