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| author | Eric Botcazou <ebotcazou@adacore.com> | 2022-07-01 10:47:36 +0200 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2022-07-13 10:01:14 +0000 |
| commit | 6faa271f09f32b32a6f4e32e3964faadc8372907 (patch) | |
| tree | a1a014c040f8b542924dd97f9efa82bed6c6ae46 /gcc/ada/sem_res.adb | |
| parent | 730814edc8b3c1bc872c54a39064ac59e2b8fdbd (diff) | |
| download | gcc-6faa271f09f32b32a6f4e32e3964faadc8372907.zip gcc-6faa271f09f32b32a6f4e32e3964faadc8372907.tar.gz gcc-6faa271f09f32b32a6f4e32e3964faadc8372907.tar.bz2 | |
[Ada] Fix internal error on untagged record type with equality operator
After the binding interpretation issued under AI12-0413, a user-defined
primitive equality operator of an untagged record type hides the predefined
equality operator in an instantiation, but this does not apply if the
instantiation appears in the same declarative region as the type and
before the declaration of this user-defined operator.
gcc/ada/
* sem_res.adb (Resolve_Equality_Op): Make sure that the user-defined
operator of an untagged record type is declared ahead of an instance
before using it to resolve the equality operator in the instance.
Diffstat (limited to 'gcc/ada/sem_res.adb')
| -rw-r--r-- | gcc/ada/sem_res.adb | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ada/sem_res.adb b/gcc/ada/sem_res.adb index 44fc955..1412d94 100644 --- a/gcc/ada/sem_res.adb +++ b/gcc/ada/sem_res.adb @@ -8967,7 +8967,14 @@ package body Sem_Res is then Eq := Get_User_Defined_Equality (T); - if Present (Eq) then + -- We need to make sure that the instance is not within the + -- same declarative region as the type, or else that it lies + -- after the declaration of the user-defined "=" operator. + + if Present (Eq) + and then (not In_Same_Extended_Unit (Eq, N) + or else Earlier_In_Extended_Unit (Eq, N)) + then if Is_Abstract_Subprogram (Eq) then Nondispatching_Call_To_Abstract_Operation (N, Eq); else |