* exp_dbug.adb, g-expect.adb, sem_elab.adb: Minor typo fix.
2014-07-29 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Analyze_Return_Type): Reject a return type that
is a limited view when the context is a package body, because
there is no subsequent place at which the non-limited view may
become visible.
(Process_Formals): Ditto.
* sinfo.ads, par-ch3.adb: Minor reformatting.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213178
138bc75d-0d04-0410-961f-
82ee72b054a4
+2014-07-29 Robert Dewar <dewar@adacore.com>
+
+ * exp_dbug.adb, g-expect.adb, sem_elab.adb: Minor typo fix.
+
+2014-07-29 Ed Schonberg <schonberg@adacore.com>
+
+ * sem_ch6.adb (Analyze_Return_Type): Reject a return type that
+ is a limited view when the context is a package body, because
+ there is no subsequent place at which the non-limited view may
+ become visible.
+ (Process_Formals): Ditto.
+ * sinfo.ads, par-ch3.adb: Minor reformatting.
+
2014-07-29 Jerome Lambourg <lambourg@adacore.com>
* expect.c (__gnat_expect_poll): New parameter dead_process
T : constant Entity_Id := Etype (N);
begin
Enable :=
- (Enable
- or else
- (Ekind (T) in Array_Kind
- and then
- Present (Packed_Array_Impl_Type (T))));
+ Enable or else (Ekind (T) in Array_Kind
+ and then Present (Packed_Array_Impl_Type (T)));
end Enable_If_Packed_Array;
----------------------
exit;
when N_Selected_Component =>
- Enable :=
- Enable or else Is_Packed (Etype (Prefix (Ren)));
+ Enable := Enable or else Is_Packed (Etype (Prefix (Ren)));
Prepend_String_To_Buffer
(Get_Name_String (Chars (Selector_Name (Ren))));
Prepend_String_To_Buffer ("XR");
when N_Indexed_Component =>
declare
- X : Node_Id := Last (Expressions (Ren));
+ X : Node_Id;
begin
Enable_If_Packed_Array (Prefix (Ren));
+
+ X := Last (Expressions (Ren));
while Present (X) loop
if not Output_Subscript (X, "XS") then
Set_Materialize_Entity (Ent);
Ren := Prefix (Ren);
when N_Slice =>
-
Enable_If_Packed_Array (Prefix (Ren));
Typ := Etype (First_Index (Etype (Nam)));
end case;
end loop;
- -- If we found no reason here to emit an encoding, stop now.
+ -- If we found no reason here to emit an encoding, stop now
if not Enable then
Set_Materialize_Entity (Ent);
Dead_Process : access Integer;
Is_Set : System.Address) return Integer;
pragma Import (C, Poll, "__gnat_expect_poll");
- -- Check whether there is any data waiting on the file descriptors
- -- Fds, and wait if there is none, at most Timeout milliseconds
- -- Returns -1 in case of error, 0 if the timeout expired before
- -- data became available.
+ -- Check whether there is any data waiting on the file descriptors Fds, and
+ -- wait if there is none, at most Timeout milliseconds Returns -1 in case
+ -- of error, 0 if the timeout expired before data became available.
--
-- Is_Set is an array of the same size as FDs and elements are set to 1 if
-- data is available for the corresponding File Descriptor, 0 otherwise.
if not Header_Already_Parsed then
-- NOT NULL ACCESS .. is a common form of access definition.
- -- ACCESS NON NULL .. is certainly rare, but syntactically legal.
+ -- ACCESS NOT NULL .. is certainly rare, but syntactically legal.
-- NOT NULL ACCESS NOT NULL .. is rarer yet, and also legal.
-- The last two cases are only meaningful if the following subtype
- -- indication denotes an access type (semantic check).
+ -- indication denotes an access type (semantic check). The flag
+ -- Not_Null_Subtype indicates that this second null exclusion is
+ -- present in the access type definition.
Not_Null_Present := P_Null_Exclusion; -- Ada 2005 (AI-231)
Scan; -- past ACCESS
then
-- AI05-0151: Tagged incomplete types are allowed in all formal
-- parts. Untagged incomplete types are not allowed in bodies.
+ -- As a consequence, limited views cannot appear in a basic
+ -- declaration that is itself within a body, because there is
+ -- no point at which the non-limited view will become visible.
if Ada_Version >= Ada_2012 then
- if Is_Tagged_Type (Typ) then
+ if From_Limited_With (Typ) and then In_Package_Body then
+ Error_Msg_NE
+ ("invalid use of incomplete type&",
+ Result_Definition (N), Typ);
+
+ elsif Is_Tagged_Type (Typ) then
null;
elsif Nkind (Parent (N)) = N_Subprogram_Body
-- dependents of the type.
if Is_Tagged_Type (Formal_Type)
- or else Ada_Version >= Ada_2012
+ or else (Ada_Version >= Ada_2012
+ and then not From_Limited_With (Formal_Type))
then
if Ekind (Scope (Current_Scope)) = E_Package
- and then not From_Limited_With (Formal_Type)
and then not Is_Generic_Type (Formal_Type)
and then not Is_Class_Wide_Type (Formal_Type)
then
then
-- AI05-0151: Tagged incomplete types are allowed in all
-- formal parts. Untagged incomplete types are not allowed
- -- in bodies.
+ -- in bodies. Limited views of either kind are not allowed
+ -- if there is no place at which the non-limited view can
+ -- become available.
if Ada_Version >= Ada_2012 then
- if Is_Tagged_Type (Formal_Type) then
+ if Is_Tagged_Type (Formal_Type)
+ and then (not From_Limited_With (Formal_Type)
+ or else not In_Package_Body)
+ then
null;
elsif Nkind_In (Parent (Parent (T)), N_Accept_Statement,
+ N_Accept_Alternative,
N_Entry_Body,
N_Subprogram_Body)
then
-- are all continuation messages. The argument is the call node at which
-- the messages are to be placed. When Check_Elab_Flag is set, calls are
-- enumerated only when flag Elab_Warning is set for the dynamic case or
- -- when flag Elab_Info_Messages is set for the statis case.
+ -- when flag Elab_Info_Messages is set for the static case.
function Same_Elaboration_Scope (Scop1, Scop2 : Entity_Id) return Boolean;
-- Given two scopes, determine whether they are the same scope from an
-- to assist in detecting this illegal use of Unrestricted_Access.
-- Null_Excluding_Subtype (Flag16)
- -- ??? needs documentation ???
+ -- Present in N_Access_To_Object_Definition. Indicates that the subtype
+ -- indication carries a null-exclusion indicator, which is distinct from
+ -- the null-exclusion indicator that may precede the access keyword.
-- Original_Discriminant (Node2-Sem)
-- Present in identifiers. Used in references to discriminants that
projects / platform / upstream / linaro-gcc.git / commitdiff