diff options
Diffstat (limited to 'gcc/ada/sem_ch6.adb')
| -rw-r--r-- | gcc/ada/sem_ch6.adb | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/gcc/ada/sem_ch6.adb b/gcc/ada/sem_ch6.adb index dbb4bb8..1df3737 100644 --- a/gcc/ada/sem_ch6.adb +++ b/gcc/ada/sem_ch6.adb @@ -9527,14 +9527,14 @@ package body Sem_Ch6 is Default := Expression (Param_Spec); if Is_Scalar_Type (Etype (Default)) then - if Nkind - (Parameter_Type (Param_Spec)) /= N_Access_Definition + if Nkind (Parameter_Type (Param_Spec)) /= + N_Access_Definition then Formal_Type := Entity (Parameter_Type (Param_Spec)); - else - Formal_Type := Access_Definition - (Related_Nod, Parameter_Type (Param_Spec)); + Formal_Type := + Access_Definition + (Related_Nod, Parameter_Type (Param_Spec)); end if; Apply_Scalar_Range_Check (Default, Formal_Type); @@ -9556,6 +9556,21 @@ package body Sem_Ch6 is if Is_Aliased (Formal) then Set_Mechanism (Formal, By_Reference); + + -- Warn if user asked this to be passed by copy + + if Convention (Formal_Type) = Convention_Ada_Pass_By_Copy then + Error_Msg_N + ("?cannot pass aliased parameter & by copy", Formal); + end if; + + -- Force mechanism if type has Convention Ada_Pass_By_Ref/Copy + + elsif Convention (Formal_Type) = Convention_Ada_Pass_By_Copy then + Set_Mechanism (Formal, By_Copy); + + elsif Convention (Formal_Type) = Convention_Ada_Pass_By_Reference then + Set_Mechanism (Formal, By_Reference); end if; Next (Param_Spec); |