diff options
| author | Piotr Trojanek <trojanek@adacore.com> | 2023-02-03 22:15:44 +0100 |
|---|---|---|
| committer | Marc Poulhiès <poulhies@adacore.com> | 2023-05-23 09:59:08 +0200 |
| commit | 61285c4805bc4fff417e9eb034f91a4d0dc2d335 (patch) | |
| tree | bc4db9458b9884b52842608f28b8dc2b9012c712 /gcc/ada/sem_util.ads | |
| parent | 7131ee2788efe5dd5dc89790453877d29a2e7eb1 (diff) | |
ada: Accept and analyze new aspect Exceptional_Cases
Add new aspect Exceptional_Cases, which is intended for SPARK and
describes in which cases an exception will be raised, and optionally
supply a postcondition that shall be verified in this case.
The implementation is heavily modeled after Subprogram_Variant, which in
turn was heavily modeled after Contract_Cases. Currently the aspect is
only analysed; the code infrastructure required to expand it is prepared
but empty. This is enough for the aspect to be verified by GNATprove.
gcc/ada/
* aspects.ads
(Aspect_Id): Add aspect identifier.
(Aspect_Argument): New aspect accepts an expression.
(Is_Representation_Aspect): New aspect is not a representation
aspect.
(Aspect_Names): Associate name with the new aspect identifier.
(Aspect_Delay): New aspect is never delayed.
* contracts.adb
(Add_Contract_Item): Store new aspect among contract items.
(Analyze_Entry_Or_Subprogram_Contract): Likewise.
(Analyze_Subprogram_Body_Stub_Contract): Likewise.
(Process_Contract_Cases): Expand new aspect, if present.
* contracts.ads
(Analyze_Entry_Or_Subprogram_Body_Contract): Mention new aspect in
spec.
(Analyze_Entry_Or_Subprogram_Contract): Likewise.
* einfo-utils.adb
(Get_Pragma): Allow new aspect to be picked by the backend.
* einfo-utils.ads
(Get_Pragma): Mention new aspect in spec.
* exp_prag.adb
(Expand_Pragma_Exceptional_Cases): Dummy expansion routine.
* exp_prag.ads
(Expand_Pragma_Exceptional_Cases): Add spec for expansion routine.
* inline.adb
(Remove_Aspects_And_Pragmas): Remove aspect from bodies to inline.
* par-prag.adb
(Par.Prag): Accept pragma in the parser, so it will be checked
later.
* sem_ch12.adb
(Implementation of Generic Contracts): Mention new aspect in
comment.
* sem_ch13.adb
(Analyze_Aspect_Specifications): Transform new aspect info a
corresponding pragma.
* sem_prag.adb
(Analyze_Exceptional_Cases_In_Decl_Part): Analyze aspect
expression; heavily inspired by the existing code for analysis of
Subprogram_Variant and exception handlers.
(Analyze_Pragma): Analyze pragma corresponding to the new aspect.
(Is_Non_Significant_Pragma_Reference): Add new pragma to the
table.
* sem_prag.ads
(Assertion_Expression_Pragma): New pragma acts as an assertion
expression, even though it is not currently expanded.
(Analyze_Exceptional_Cases_In_Decl_Part): Add spec.
* sem_util.adb
(Is_Subprogram_Contract_Annotation): Mark new annotation is a
subprogram contract, so the subprogram with it won't be inlined.
* sem_util.ads
(Is_Subprogram_Contract_Annotation): Mention new aspect in
comment.
* sinfo.ads
(Contract_Test_Cases): Mention new aspect in comment.
* snames.ads-tmpl: Add entries for the new name and pragma.
Diffstat (limited to 'gcc/ada/sem_util.ads')
| -rw-r--r-- | gcc/ada/sem_util.ads | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/ada/sem_util.ads b/gcc/ada/sem_util.ads index 253d1dadeee..4028d370823 100644 --- a/gcc/ada/sem_util.ads +++ b/gcc/ada/sem_util.ads @@ -2343,6 +2343,7 @@ package Sem_Util is -- following subprogram contract annotations: -- Contract_Cases -- Depends + -- Exceptional_Cases -- Extensions_Visible -- Global -- Post |