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author | Bernhard Schommer <bernhardschommer@gmail.com> | 2015-10-12 16:58:23 +0200 |
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committer | Bernhard Schommer <bernhardschommer@gmail.com> | 2015-10-12 17:18:07 +0200 |
commit | 906873ee165cbaabf36ca51792eb5a498a12bd72 (patch) | |
tree | f32bcee6d0fc0d3039c57267b8b4d8db847ad9d9 /cparser/Cutil.ml | |
parent | a68c024bd8421cda0d21802669cb01730d109378 (diff) | |
download | compcert-kvx-906873ee165cbaabf36ca51792eb5a498a12bd72.tar.gz compcert-kvx-906873ee165cbaabf36ca51792eb5a498a12bd72.zip |
Move strip functions to Cutil.
Since the strip functions might be useful in other context and is
more general then the debug information.
Bug 17392.
Diffstat (limited to 'cparser/Cutil.ml')
-rw-r--r-- | cparser/Cutil.ml | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cparser/Cutil.ml b/cparser/Cutil.ml index 0def347f..60bcc1a7 100644 --- a/cparser/Cutil.ml +++ b/cparser/Cutil.ml @@ -177,6 +177,48 @@ let remove_attributes_type env attr t = let erase_attributes_type env t = change_attributes_type env (fun a -> []) t +(* Remove all attributes from type that are not contained in attr *) +let strip_attributes_type t attr = + let strip = List.filter (fun a -> List.mem a attr) in + match t with + | TVoid at -> TVoid (strip at) + | TInt (k,at) -> TInt (k,strip at) + | TFloat (k,at) -> TFloat(k,strip at) + | TPtr (t,at) -> TPtr(t,strip at) + | TArray (t,s,at) -> TArray(t,s,strip at) + | TFun (t,arg,v,at) -> TFun(t,arg,v,strip at) + | TNamed (n,at) -> TNamed(n,strip at) + | TStruct (n,at) -> TStruct(n,strip at) + | TUnion (n,at) -> TUnion(n,strip at) + | TEnum (n,at) -> TEnum(n,strip at) + +(* Remove the last attribute from the toplevel and return the changed type *) +let strip_last_attribute typ = + let rec hd_opt l = match l with + [] -> None,[] + | a::rest -> Some a,rest in + match typ with + | TVoid at -> let l,r = hd_opt at in + l,TVoid r + | TInt (k,at) -> let l,r = hd_opt at in + l,TInt (k,r) + | TFloat (k,at) -> let l,r = hd_opt at in + l,TFloat (k,r) + | TPtr (t,at) -> let l,r = hd_opt at in + l,TPtr(t,r) + | TArray (t,s,at) -> let l,r = hd_opt at in + l,TArray(t,s,r) + | TFun (t,arg,v,at) -> let l,r = hd_opt at in + l,TFun(t,arg,v,r) + | TNamed (n,at) -> let l,r = hd_opt at in + l,TNamed(n,r) + | TStruct (n,at) -> let l,r = hd_opt at in + l,TStruct(n,r) + | TUnion (n,at) -> let l,r = hd_opt at in + l,TUnion(n,r) + | TEnum (n,at) -> let l,r = hd_opt at in + l,TEnum(n,r) + (* Extracting alignment value from a set of attributes. Return 0 if none. *) let alignas_attribute al = |