with Fname.UF; use Fname.UF;
with Osint; use Osint;
with Stringt; use Stringt;
with Stylesw; use Stylesw;
with Uintp; use Uintp;
with Uname; use Uname;
separate (Par)
function Prag (Pragma_Node : Node_Id; Semi : Source_Ptr) return Node_Id is
Pragma_Name : constant Name_Id := Chars (Pragma_Node);
Pragma_Sloc : constant Source_Ptr := Sloc (Pragma_Node);
Arg_Count : Nat;
Arg_Node : Node_Id;
function Arg1 return Node_Id;
function Arg2 return Node_Id;
function Arg3 return Node_Id;
procedure Check_Arg_Count (Required : Int);
procedure Check_Arg_Is_String_Literal (Arg : Node_Id);
procedure Check_Arg_Is_On_Or_Off (Arg : Node_Id);
procedure Check_No_Identifier (Arg : Node_Id);
procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id);
procedure Check_Required_Identifier (Arg : Node_Id; Id : Name_Id);
function Arg1 return Node_Id is
begin
return First (Pragma_Argument_Associations (Pragma_Node));
end Arg1;
function Arg2 return Node_Id is
begin
return Next (Arg1);
end Arg2;
function Arg3 return Node_Id is
begin
return Next (Arg2);
end Arg3;
procedure Check_Arg_Count (Required : Int) is
begin
if Arg_Count /= Required then
Error_Msg ("wrong number of arguments for pragma%", Pragma_Sloc);
raise Error_Resync;
end if;
end Check_Arg_Count;
procedure Check_Arg_Is_On_Or_Off (Arg : Node_Id) is
Argx : constant Node_Id := Expression (Arg);
begin
if Nkind (Expression (Arg)) /= N_Identifier
or else (Chars (Argx) /= Name_On
and then
Chars (Argx) /= Name_Off)
then
Error_Msg_Name_2 := Name_On;
Error_Msg_Name_3 := Name_Off;
Error_Msg
("argument for pragma% must be% or%", Sloc (Argx));
raise Error_Resync;
end if;
end Check_Arg_Is_On_Or_Off;
procedure Check_Arg_Is_String_Literal (Arg : Node_Id) is
begin
if Nkind (Expression (Arg)) /= N_String_Literal then
Error_Msg
("argument for pragma% must be string literal",
Sloc (Expression (Arg)));
raise Error_Resync;
end if;
end Check_Arg_Is_String_Literal;
procedure Check_No_Identifier (Arg : Node_Id) is
begin
if Chars (Arg) /= No_Name then
Error_Msg_N ("pragma% does not permit named arguments", Arg);
raise Error_Resync;
end if;
end Check_No_Identifier;
procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id) is
begin
if Present (Arg) and then Chars (Arg) /= No_Name then
if Chars (Arg) /= Id then
Error_Msg_Name_2 := Id;
Error_Msg_N ("pragma% argument expects identifier%", Arg);
end if;
end if;
end Check_Optional_Identifier;
procedure Check_Required_Identifier (Arg : Node_Id; Id : Name_Id) is
begin
if Chars (Arg) /= Id then
Error_Msg_Name_2 := Id;
Error_Msg_N ("pragma% argument must have identifier%", Arg);
end if;
end Check_Required_Identifier;
begin
Error_Msg_Name_1 := Pragma_Name;
if not Is_Pragma_Name (Chars (Pragma_Node)) then
return Pragma_Node;
end if;
Arg_Count := 0;
if Present (Pragma_Argument_Associations (Pragma_Node)) then
Arg_Node := Arg1;
while Arg_Node /= Empty loop
Arg_Count := Arg_Count + 1;
if Expression (Arg_Node) = Error then
return Error;
end if;
Next (Arg_Node);
end loop;
end if;
case Get_Pragma_Id (Pragma_Name) is
when Pragma_Ada_83 =>
Ada_83 := True;
Ada_95 := False;
when Pragma_Ada_95 =>
Ada_83 := False;
Ada_95 := True;
when Pragma_Debug =>
Check_Arg_Count (1);
Check_No_Identifier (Arg1);
declare
Expr : constant Node_Id := New_Copy (Expression (Arg1));
begin
if Nkind (Expr) /= N_Indexed_Component
and then Nkind (Expr) /= N_Function_Call
and then Nkind (Expr) /= N_Identifier
and then Nkind (Expr) /= N_Selected_Component
then
Error_Msg
("argument of pragma% is not procedure call", Sloc (Expr));
raise Error_Resync;
else
Set_Debug_Statement
(Pragma_Node, P_Statement_Name (Expr));
end if;
end;
when Pragma_Extensions_Allowed =>
Check_Arg_Count (1);
Check_No_Identifier (Arg1);
Check_Arg_Is_On_Or_Off (Arg1);
Opt.Extensions_Allowed := (Chars (Expression (Arg1)) = Name_On);
when Pragma_List =>
Check_Arg_Count (1);
Check_No_Identifier (Arg1);
Check_Arg_Is_On_Or_Off (Arg1);
List_Pragmas.Increment_Last;
List_Pragmas.Table (List_Pragmas.Last) :=
(Ptyp => List_On, Ploc => Sloc (Pragma_Node));
if Chars (Expression (Arg1)) = Name_Off then
List_Pragmas.Increment_Last;
List_Pragmas.Table (List_Pragmas.Last) :=
(Ptyp => List_Off, Ploc => Semi);
end if;
when Pragma_Page =>
Check_Arg_Count (0);
List_Pragmas.Increment_Last;
List_Pragmas.Table (List_Pragmas.Last) := (Page, Semi);
when Pragma_Source_File_Name | Pragma_Source_File_Name_Project =>
Source_File_Name : declare
Unam : Unit_Name_Type;
Expr1 : Node_Id;
Pat : String_Ptr;
Typ : Character;
Dot : String_Ptr;
Cas : Casing_Type;
Nast : Nat;
Expr : Node_Id;
Index : Nat;
function Get_Fname (Arg : Node_Id) return Name_Id;
function Get_String_Argument (Arg : Node_Id) return String_Ptr;
procedure Process_Casing (Arg : Node_Id);
procedure Process_Dot_Replacement (Arg : Node_Id);
function Get_Fname (Arg : Node_Id) return Name_Id is
begin
String_To_Name_Buffer (Strval (Expression (Arg)));
for J in 1 .. Name_Len loop
if Is_Directory_Separator (Name_Buffer (J)) then
Error_Msg
("directory separator character not allowed",
Sloc (Expression (Arg)) + Source_Ptr (J));
end if;
end loop;
return Name_Find;
end Get_Fname;
function Get_String_Argument (Arg : Node_Id) return String_Ptr is
Str : String_Id;
begin
if Nkind (Expression (Arg)) /= N_String_Literal
and then
Nkind (Expression (Arg)) /= N_Operator_Symbol
then
Error_Msg_N
("argument for pragma% must be string literal", Arg);
raise Error_Resync;
end if;
Str := Strval (Expression (Arg));
for J in 1 .. String_Length (Str) loop
if Get_String_Char (Str, J) > 255 then
Error_Msg
("wide character not allowed in pattern for pragma%",
Sloc (Expression (Arg2)) + Text_Ptr (J) - 1);
end if;
end loop;
String_To_Name_Buffer (Str);
return new String'(Name_Buffer (1 .. Name_Len));
end Get_String_Argument;
procedure Process_Casing (Arg : Node_Id) is
Expr : constant Node_Id := Expression (Arg);
begin
Check_Required_Identifier (Arg, Name_Casing);
if Nkind (Expr) = N_Identifier then
if Chars (Expr) = Name_Lowercase then
Cas := All_Lower_Case;
return;
elsif Chars (Expr) = Name_Uppercase then
Cas := All_Upper_Case;
return;
elsif Chars (Expr) = Name_Mixedcase then
Cas := Mixed_Case;
return;
end if;
end if;
Error_Msg_N
("Casing argument for pragma% must be " &
"one of Mixedcase, Lowercase, Uppercase",
Arg);
end Process_Casing;
procedure Process_Dot_Replacement (Arg : Node_Id) is
begin
Check_Required_Identifier (Arg, Name_Dot_Replacement);
Dot := Get_String_Argument (Arg);
end Process_Dot_Replacement;
begin
if Get_Pragma_Id (Pragma_Name) = Pragma_Source_File_Name then
if Project_File_In_Use = In_Use then
Error_Msg
("pragma Source_File_Name cannot be used " &
"with a project file", Pragma_Sloc);
else
Project_File_In_Use := Not_In_Use;
end if;
else
if Project_File_In_Use = Not_In_Use then
Error_Msg
("pragma Source_File_Name_Project should only be used " &
"with a project file", Pragma_Sloc);
else
Project_File_In_Use := In_Use;
end if;
end if;
if Arg_Count not in 1 .. 3 then
Check_Arg_Count (1);
end if;
Expr1 := Expression (Arg1);
if Nkind (Expr1) = N_Identifier
or else
(Nkind (Expr1) = N_Selected_Component
and then
Nkind (Selector_Name (Expr1)) = N_Identifier)
then
if Nkind (Expr1) = N_Identifier
and then Chars (Expr1) = Name_System
then
Error_Msg_N
("pragma Source_File_Name may not be used for System",
Arg1);
return Error;
end if;
if Arg_Count = 3 then
Expr := Expression (Arg3);
if Nkind (Expr) /= N_Integer_Literal
or else not UI_Is_In_Int_Range (Intval (Expr))
or else Intval (Expr) > 999
or else Intval (Expr) <= 0
then
Error_Msg
("pragma% index must be integer literal" &
" in range 1 .. 999", Sloc (Expr));
raise Error_Resync;
else
Index := UI_To_Int (Intval (Expr));
end if;
else
Check_Arg_Count (2);
Index := 0;
end if;
Check_Optional_Identifier (Arg1, Name_Unit_Name);
Unam := Get_Unit_Name (Expr1);
Check_Arg_Is_String_Literal (Arg2);
if Chars (Arg2) = Name_Spec_File_Name then
Set_File_Name
(Get_Spec_Name (Unam), Get_Fname (Arg2), Index);
elsif Chars (Arg2) = Name_Body_File_Name then
Set_File_Name
(Unam, Get_Fname (Arg2), Index);
else
Error_Msg_N
("pragma% argument has incorrect identifier", Arg2);
return Pragma_Node;
end if;
else
if Chars (Arg1) = Name_Spec_File_Name then
Typ := 's';
elsif Chars (Arg1) = Name_Body_File_Name then
Typ := 'b';
elsif Chars (Arg1) = Name_Subunit_File_Name then
Typ := 'u';
elsif Chars (Arg1) = Name_Unit_Name then
Error_Msg_N
("Unit_Name parameter for pragma% must be an identifier",
Arg1);
raise Error_Resync;
else
Error_Msg_N
("pragma% argument has incorrect identifier", Arg1);
raise Error_Resync;
end if;
Pat := Get_String_Argument (Arg1);
Nast := 0;
for J in Pat'Range loop
if Pat (J) = '*' then
Nast := Nast + 1;
end if;
end loop;
if Nast /= 1 then
Error_Msg_N
("file name pattern must have exactly one * character",
Arg1);
return Pragma_Node;
end if;
Cas := All_Lower_Case;
Dot := new String'(".");
if Arg_Count > 1 then
if Chars (Arg2) = Name_Casing then
Process_Casing (Arg2);
if Arg_Count = 3 then
Process_Dot_Replacement (Arg3);
end if;
else
Process_Dot_Replacement (Arg2);
if Arg_Count = 3 then
Process_Casing (Arg3);
end if;
end if;
end if;
Set_File_Name_Pattern (Pat, Typ, Dot, Cas);
end if;
end Source_File_Name;
when Pragma_Source_Reference => Source_Reference : declare
Fname : Name_Id;
begin
if Arg_Count /= 1 then
Check_Arg_Count (2);
Check_No_Identifier (Arg2);
end if;
if Get_Physical_Line_Number (Pragma_Sloc) /= 1
and then Num_SRef_Pragmas (Current_Source_File) = 0
and then Operating_Mode /= Check_Syntax
then
Error_Msg
("first % pragma must be first line of file", Pragma_Sloc);
raise Error_Resync;
end if;
Check_No_Identifier (Arg1);
if Arg_Count = 1 then
if Num_SRef_Pragmas (Current_Source_File) = 0 then
Error_Msg
("file name required for first % pragma in file",
Pragma_Sloc);
raise Error_Resync;
else
Fname := No_Name;
end if;
else
Check_Arg_Is_String_Literal (Arg2);
String_To_Name_Buffer (Strval (Expression (Arg2)));
Fname := Name_Find;
if Num_SRef_Pragmas (Current_Source_File) > 0 then
if Fname /= Full_Ref_Name (Current_Source_File) then
Error_Msg
("file name must be same in all % pragmas", Pragma_Sloc);
raise Error_Resync;
end if;
end if;
end if;
if Nkind (Expression (Arg1)) /= N_Integer_Literal then
Error_Msg
("argument for pragma% must be integer literal",
Sloc (Expression (Arg1)));
raise Error_Resync;
else
if Num_Library_Units = 1 then
Register_Source_Ref_Pragma
(Fname,
Strip_Directory (Fname),
UI_To_Int (Intval (Expression (Arg1))),
Get_Physical_Line_Number (Pragma_Sloc) + 1);
end if;
end if;
end Source_Reference;
when Pragma_Style_Checks => Style_Checks : declare
A : Node_Id;
S : String_Id;
C : Char_Code;
OK : Boolean := True;
begin
if Arg_Count = 2 then
null;
else
Check_Arg_Count (1);
Check_No_Identifier (Arg1);
A := Expression (Arg1);
if Nkind (A) = N_String_Literal then
S := Strval (A);
declare
Slen : constant Natural := Natural (String_Length (S));
Options : String (1 .. Slen);
J : Natural;
Ptr : Natural;
begin
J := 1;
loop
C := Get_String_Char (S, Int (J));
if not In_Character_Range (C) then
OK := False;
Ptr := J;
exit;
else
Options (J) := Get_Character (C);
end if;
if J = Slen then
Set_Style_Check_Options (Options, OK, Ptr);
exit;
else
J := J + 1;
end if;
end loop;
if not OK then
Error_Msg
("invalid style check option",
Sloc (Expression (Arg1)) + Source_Ptr (Ptr));
raise Error_Resync;
end if;
end;
elsif Nkind (A) /= N_Identifier then
OK := False;
elsif Chars (A) = Name_All_Checks then
Stylesw.Set_Default_Style_Check_Options;
elsif Chars (A) = Name_On then
Style_Check := True;
elsif Chars (A) = Name_Off then
Style_Check := False;
else
OK := False;
end if;
if not OK then
Error_Msg ("incorrect argument for pragma%", Sloc (A));
raise Error_Resync;
end if;
end if;
end Style_Checks;
when Pragma_Warnings =>
if Arg_Count = 1 then
Check_No_Identifier (Arg1);
Check_Arg_Is_On_Or_Off (Arg1);
if Chars (Expression (Arg1)) = Name_On then
Set_Warnings_Mode_On (Pragma_Sloc);
else
Set_Warnings_Mode_Off (Pragma_Sloc);
end if;
end if;
when Pragma_Abort_Defer |
Pragma_AST_Entry |
Pragma_All_Calls_Remote |
Pragma_Annotate |
Pragma_Assert |
Pragma_Asynchronous |
Pragma_Atomic |
Pragma_Atomic_Components |
Pragma_Attach_Handler |
Pragma_Compile_Time_Warning |
Pragma_Convention_Identifier |
Pragma_CPP_Class |
Pragma_CPP_Constructor |
Pragma_CPP_Virtual |
Pragma_CPP_Vtable |
Pragma_C_Pass_By_Copy |
Pragma_Comment |
Pragma_Common_Object |
Pragma_Complex_Representation |
Pragma_Component_Alignment |
Pragma_Controlled |
Pragma_Convention |
Pragma_Discard_Names |
Pragma_Eliminate |
Pragma_Elaborate |
Pragma_Elaborate_All |
Pragma_Elaborate_Body |
Pragma_Elaboration_Checks |
Pragma_Explicit_Overriding |
Pragma_Export |
Pragma_Export_Exception |
Pragma_Export_Function |
Pragma_Export_Object |
Pragma_Export_Procedure |
Pragma_Export_Value |
Pragma_Export_Valued_Procedure |
Pragma_Extend_System |
Pragma_External |
Pragma_External_Name_Casing |
Pragma_Finalize_Storage_Only |
Pragma_Float_Representation |
Pragma_Ident |
Pragma_Import |
Pragma_Import_Exception |
Pragma_Import_Function |
Pragma_Import_Object |
Pragma_Import_Procedure |
Pragma_Import_Valued_Procedure |
Pragma_Initialize_Scalars |
Pragma_Inline |
Pragma_Inline_Always |
Pragma_Inline_Generic |
Pragma_Inspection_Point |
Pragma_Interface |
Pragma_Interface_Name |
Pragma_Interrupt_Handler |
Pragma_Interrupt_State |
Pragma_Interrupt_Priority |
Pragma_Java_Constructor |
Pragma_Java_Interface |
Pragma_Keep_Names |
Pragma_License |
Pragma_Link_With |
Pragma_Linker_Alias |
Pragma_Linker_Options |
Pragma_Linker_Section |
Pragma_Locking_Policy |
Pragma_Long_Float |
Pragma_Machine_Attribute |
Pragma_Main |
Pragma_Main_Storage |
Pragma_Memory_Size |
Pragma_No_Return |
Pragma_Obsolescent |
Pragma_No_Run_Time |
Pragma_No_Strict_Aliasing |
Pragma_Normalize_Scalars |
Pragma_Optimize |
Pragma_Optional_Overriding |
Pragma_Overriding |
Pragma_Pack |
Pragma_Passive |
Pragma_Polling |
Pragma_Persistent_Data |
Pragma_Persistent_Object |
Pragma_Preelaborate |
Pragma_Priority |
Pragma_Profile |
Pragma_Propagate_Exceptions |
Pragma_Psect_Object |
Pragma_Pure |
Pragma_Pure_Function |
Pragma_Queuing_Policy |
Pragma_Remote_Call_Interface |
Pragma_Remote_Types |
Pragma_Restrictions |
Pragma_Restriction_Warnings |
Pragma_Restricted_Run_Time |
Pragma_Ravenscar |
Pragma_Reviewable |
Pragma_Share_Generic |
Pragma_Shared |
Pragma_Shared_Passive |
Pragma_Storage_Size |
Pragma_Storage_Unit |
Pragma_Stream_Convert |
Pragma_Subtitle |
Pragma_Suppress |
Pragma_Suppress_All |
Pragma_Suppress_Debug_Info |
Pragma_Suppress_Exception_Locations |
Pragma_Suppress_Initialization |
Pragma_System_Name |
Pragma_Task_Dispatching_Policy |
Pragma_Task_Info |
Pragma_Task_Name |
Pragma_Task_Storage |
Pragma_Thread_Body |
Pragma_Time_Slice |
Pragma_Title |
Pragma_Unchecked_Union |
Pragma_Unimplemented_Unit |
Pragma_Universal_Data |
Pragma_Unreferenced |
Pragma_Unreserve_All_Interrupts |
Pragma_Unsuppress |
Pragma_Use_VADS_Size |
Pragma_Volatile |
Pragma_Volatile_Components |
Pragma_Weak_External |
Pragma_Validity_Checks =>
null;
when Unknown_Pragma =>
raise Program_Error;
end case;
return Pragma_Node;
exception
when Error_Resync =>
return Error;
end Prag;