[multiple changes]
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. From-SVN: r213178
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Arnaud Charlet
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a7737c19cf
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b973629e61
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@ -1,3 +1,16 @@
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2014-07-29 Robert Dewar <dewar@adacore.com>
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* exp_dbug.adb, g-expect.adb, sem_elab.adb: Minor typo fix.
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2014-07-29 Ed Schonberg <schonberg@adacore.com>
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* sem_ch6.adb (Analyze_Return_Type): Reject a return type that
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is a limited view when the context is a package body, because
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there is no subsequent place at which the non-limited view may
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become visible.
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(Process_Formals): Ditto.
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* sinfo.ads, par-ch3.adb: Minor reformatting.
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2014-07-29 Jerome Lambourg <lambourg@adacore.com>
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* expect.c (__gnat_expect_poll): New parameter dead_process
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@ -332,11 +332,8 @@ package body Exp_Dbug is
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T : constant Entity_Id := Etype (N);
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begin
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Enable :=
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(Enable
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or else
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(Ekind (T) in Array_Kind
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and then
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Present (Packed_Array_Impl_Type (T))));
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Enable or else (Ekind (T) in Array_Kind
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and then Present (Packed_Array_Impl_Type (T)));
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end Enable_If_Packed_Array;
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----------------------
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@ -397,8 +394,7 @@ package body Exp_Dbug is
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exit;
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when N_Selected_Component =>
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Enable :=
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Enable or else Is_Packed (Etype (Prefix (Ren)));
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Enable := Enable or else Is_Packed (Etype (Prefix (Ren)));
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Prepend_String_To_Buffer
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(Get_Name_String (Chars (Selector_Name (Ren))));
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Prepend_String_To_Buffer ("XR");
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@ -406,10 +402,12 @@ package body Exp_Dbug is
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when N_Indexed_Component =>
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declare
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X : Node_Id := Last (Expressions (Ren));
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X : Node_Id;
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begin
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Enable_If_Packed_Array (Prefix (Ren));
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X := Last (Expressions (Ren));
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while Present (X) loop
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if not Output_Subscript (X, "XS") then
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Set_Materialize_Entity (Ent);
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@ -423,7 +421,6 @@ package body Exp_Dbug is
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Ren := Prefix (Ren);
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when N_Slice =>
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Enable_If_Packed_Array (Prefix (Ren));
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Typ := Etype (First_Index (Etype (Nam)));
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@ -451,7 +448,7 @@ package body Exp_Dbug is
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end case;
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end loop;
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-- If we found no reason here to emit an encoding, stop now.
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-- If we found no reason here to emit an encoding, stop now
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if not Enable then
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Set_Materialize_Entity (Ent);
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@ -110,10 +110,9 @@ package body GNAT.Expect is
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Dead_Process : access Integer;
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Is_Set : System.Address) return Integer;
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pragma Import (C, Poll, "__gnat_expect_poll");
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-- Check whether there is any data waiting on the file descriptors
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-- Fds, and wait if there is none, at most Timeout milliseconds
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-- Returns -1 in case of error, 0 if the timeout expired before
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-- data became available.
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-- Check whether there is any data waiting on the file descriptors Fds, and
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-- wait if there is none, at most Timeout milliseconds Returns -1 in case
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-- of error, 0 if the timeout expired before data became available.
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--
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-- Is_Set is an array of the same size as FDs and elements are set to 1 if
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-- data is available for the corresponding File Descriptor, 0 otherwise.
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@ -3967,10 +3967,12 @@ package body Ch3 is
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if not Header_Already_Parsed then
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-- NOT NULL ACCESS .. is a common form of access definition.
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-- ACCESS NON NULL .. is certainly rare, but syntactically legal.
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-- ACCESS NOT NULL .. is certainly rare, but syntactically legal.
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-- NOT NULL ACCESS NOT NULL .. is rarer yet, and also legal.
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-- The last two cases are only meaningful if the following subtype
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-- indication denotes an access type (semantic check).
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-- indication denotes an access type (semantic check). The flag
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-- Not_Null_Subtype indicates that this second null exclusion is
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-- present in the access type definition.
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Not_Null_Present := P_Null_Exclusion; -- Ada 2005 (AI-231)
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Scan; -- past ACCESS
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@ -1951,9 +1951,17 @@ package body Sem_Ch6 is
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then
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-- AI05-0151: Tagged incomplete types are allowed in all formal
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-- parts. Untagged incomplete types are not allowed in bodies.
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-- As a consequence, limited views cannot appear in a basic
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-- declaration that is itself within a body, because there is
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-- no point at which the non-limited view will become visible.
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if Ada_Version >= Ada_2012 then
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if Is_Tagged_Type (Typ) then
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if From_Limited_With (Typ) and then In_Package_Body then
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Error_Msg_NE
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("invalid use of incomplete type&",
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Result_Definition (N), Typ);
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elsif Is_Tagged_Type (Typ) then
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null;
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elsif Nkind (Parent (N)) = N_Subprogram_Body
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@ -11328,10 +11336,10 @@ package body Sem_Ch6 is
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-- dependents of the type.
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if Is_Tagged_Type (Formal_Type)
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or else Ada_Version >= Ada_2012
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or else (Ada_Version >= Ada_2012
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and then not From_Limited_With (Formal_Type))
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then
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if Ekind (Scope (Current_Scope)) = E_Package
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and then not From_Limited_With (Formal_Type)
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and then not Is_Generic_Type (Formal_Type)
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and then not Is_Class_Wide_Type (Formal_Type)
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then
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@ -11363,13 +11371,19 @@ package body Sem_Ch6 is
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then
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-- AI05-0151: Tagged incomplete types are allowed in all
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-- formal parts. Untagged incomplete types are not allowed
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-- in bodies.
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-- in bodies. Limited views of either kind are not allowed
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-- if there is no place at which the non-limited view can
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-- become available.
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if Ada_Version >= Ada_2012 then
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if Is_Tagged_Type (Formal_Type) then
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if Is_Tagged_Type (Formal_Type)
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and then (not From_Limited_With (Formal_Type)
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or else not In_Package_Body)
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then
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null;
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elsif Nkind_In (Parent (Parent (T)), N_Accept_Statement,
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N_Accept_Alternative,
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N_Entry_Body,
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N_Subprogram_Body)
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then
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@ -271,7 +271,7 @@ package body Sem_Elab is
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-- are all continuation messages. The argument is the call node at which
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-- the messages are to be placed. When Check_Elab_Flag is set, calls are
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-- enumerated only when flag Elab_Warning is set for the dynamic case or
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-- when flag Elab_Info_Messages is set for the statis case.
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-- when flag Elab_Info_Messages is set for the static case.
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function Same_Elaboration_Scope (Scop1, Scop2 : Entity_Id) return Boolean;
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-- Given two scopes, determine whether they are the same scope from an
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@ -1851,7 +1851,9 @@ package Sinfo is
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-- to assist in detecting this illegal use of Unrestricted_Access.
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-- Null_Excluding_Subtype (Flag16)
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-- ??? needs documentation ???
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-- Present in N_Access_To_Object_Definition. Indicates that the subtype
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-- indication carries a null-exclusion indicator, which is distinct from
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-- the null-exclusion indicator that may precede the access keyword.
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-- Original_Discriminant (Node2-Sem)
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-- Present in identifiers. Used in references to discriminants that
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