diff options
Diffstat (limited to 'gcc/ada/sem_attr.adb')
| -rw-r--r-- | gcc/ada/sem_attr.adb | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb index 83833c15b5a..efefdb82068 100644 --- a/gcc/ada/sem_attr.adb +++ b/gcc/ada/sem_attr.adb @@ -372,8 +372,8 @@ package body Sem_Attr is ---------------------------------- procedure Build_Access_Subprogram_Type (P : Node_Id) is - Index : Interp_Index; - It : Interp; + Index : Interp_Index; + It : Interp; function Get_Kind (E : Entity_Id) return Entity_Kind; -- Distinguish between access to regular and protected @@ -395,6 +395,10 @@ package body Sem_Attr is -- Start of processing for Build_Access_Subprogram_Type begin + -- In the case of an access to subprogram, use the name of the + -- subprogram itself as the designated type. Type-checking in + -- this case compares the signatures of the designated types. + if not Is_Overloaded (P) then Acc_Type := New_Internal_Entity @@ -408,7 +412,6 @@ package body Sem_Attr is Set_Etype (N, Any_Type); while Present (It.Nam) loop - if not Is_Intrinsic_Subprogram (It.Nam) then Acc_Type := New_Internal_Entity @@ -437,17 +440,20 @@ package body Sem_Attr is ("prefix of % attribute cannot be enumeration literal", P); end if; - -- In the case of an access to subprogram, use the name of the - -- subprogram itself as the designated type. Type-checking in - -- this case compares the signatures of the designated types. + -- Case of access to subprogram if Is_Entity_Name (P) and then Is_Overloadable (Entity (P)) then + -- Not allowed for nested subprograms if No_Implicit_Dynamic_Code + -- restriction set (since in general a trampoline is required). + if not Is_Library_Level_Entity (Entity (P)) then Check_Restriction (No_Implicit_Dynamic_Code, P); end if; + -- Build the appropriate subprogram type + Build_Access_Subprogram_Type (P); -- For unrestricted access, kill current values, since this @@ -460,7 +466,7 @@ package body Sem_Attr is return; - -- Component is an operation of a protected type. + -- Component is an operation of a protected type elsif Nkind (P) = N_Selected_Component and then Is_Overloadable (Entity (Selector_Name (P))) @@ -6406,7 +6412,6 @@ package body Sem_Attr is end if; if Is_Entity_Name (P) then - if Is_Overloaded (P) then Get_First_Interp (P, Index, It); @@ -6437,19 +6442,18 @@ package body Sem_Attr is Resolve (P); end if; + Error_Msg_Name_1 := Aname; + if not Is_Entity_Name (P) then null; elsif Is_Abstract (Entity (P)) and then Is_Overloadable (Entity (P)) then - Error_Msg_Name_1 := Aname; Error_Msg_N ("prefix of % attribute cannot be abstract", P); Set_Etype (N, Any_Type); elsif Convention (Entity (P)) = Convention_Intrinsic then - Error_Msg_Name_1 := Aname; - if Ekind (Entity (P)) = E_Enumeration_Literal then Error_Msg_N ("prefix of % attribute cannot be enumeration literal", @@ -6460,6 +6464,10 @@ package body Sem_Attr is end if; Set_Etype (N, Any_Type); + + elsif Is_Thread_Body (Entity (P)) then + Error_Msg_N + ("prefix of % attribute cannot be a thread body", P); end if; -- Assignments, return statements, components of aggregates, |