| 1 |
706 |
jeremybenn |
------------------------------------------------------------------------------
|
| 2 |
|
|
-- --
|
| 3 |
|
|
-- GNAT COMPILER COMPONENTS --
|
| 4 |
|
|
-- --
|
| 5 |
|
|
-- S C A N S --
|
| 6 |
|
|
-- --
|
| 7 |
|
|
-- B o d y --
|
| 8 |
|
|
-- --
|
| 9 |
|
|
-- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
|
| 10 |
|
|
-- --
|
| 11 |
|
|
-- GNAT is free software; you can redistribute it and/or modify it under --
|
| 12 |
|
|
-- terms of the GNU General Public License as published by the Free Soft- --
|
| 13 |
|
|
-- ware Foundation; either version 3, or (at your option) any later ver- --
|
| 14 |
|
|
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
| 15 |
|
|
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
| 16 |
|
|
-- or FITNESS FOR A PARTICULAR PURPOSE. --
|
| 17 |
|
|
-- --
|
| 18 |
|
|
-- As a special exception under Section 7 of GPL version 3, you are granted --
|
| 19 |
|
|
-- additional permissions described in the GCC Runtime Library Exception, --
|
| 20 |
|
|
-- version 3.1, as published by the Free Software Foundation. --
|
| 21 |
|
|
-- --
|
| 22 |
|
|
-- You should have received a copy of the GNU General Public License and --
|
| 23 |
|
|
-- a copy of the GCC Runtime Library Exception along with this program; --
|
| 24 |
|
|
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
| 25 |
|
|
-- <http://www.gnu.org/licenses/>. --
|
| 26 |
|
|
-- --
|
| 27 |
|
|
-- GNAT was originally developed by the GNAT team at New York University. --
|
| 28 |
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
| 29 |
|
|
-- --
|
| 30 |
|
|
------------------------------------------------------------------------------
|
| 31 |
|
|
|
| 32 |
|
|
with Snames; use Snames;
|
| 33 |
|
|
|
| 34 |
|
|
package body Scans is
|
| 35 |
|
|
|
| 36 |
|
|
-----------------------------
|
| 37 |
|
|
-- Initialize_Ada_Keywords --
|
| 38 |
|
|
-----------------------------
|
| 39 |
|
|
|
| 40 |
|
|
procedure Initialize_Ada_Keywords is
|
| 41 |
|
|
procedure Set_Reserved (N : Name_Id; T : Token_Type);
|
| 42 |
|
|
pragma Inline (Set_Reserved);
|
| 43 |
|
|
-- Set given name as a reserved word (T is the corresponding token)
|
| 44 |
|
|
|
| 45 |
|
|
------------------
|
| 46 |
|
|
-- Set_Reserved --
|
| 47 |
|
|
------------------
|
| 48 |
|
|
|
| 49 |
|
|
procedure Set_Reserved (N : Name_Id; T : Token_Type) is
|
| 50 |
|
|
begin
|
| 51 |
|
|
-- Set up Token_Type values in Names table entries for reserved
|
| 52 |
|
|
-- words. We use the Pos value of the Token_Type value. Note that
|
| 53 |
|
|
-- Is_Keyword_Name relies on the fact that Token_Type'Val (0) is not
|
| 54 |
|
|
-- a reserved word!
|
| 55 |
|
|
|
| 56 |
|
|
Set_Name_Table_Byte (N, Token_Type'Pos (T));
|
| 57 |
|
|
end Set_Reserved;
|
| 58 |
|
|
|
| 59 |
|
|
-- Start of processing for Initialize_Ada_Keywords
|
| 60 |
|
|
|
| 61 |
|
|
begin
|
| 62 |
|
|
-- Establish reserved words
|
| 63 |
|
|
|
| 64 |
|
|
Set_Reserved (Name_Abort, Tok_Abort);
|
| 65 |
|
|
Set_Reserved (Name_Abs, Tok_Abs);
|
| 66 |
|
|
Set_Reserved (Name_Abstract, Tok_Abstract);
|
| 67 |
|
|
Set_Reserved (Name_Accept, Tok_Accept);
|
| 68 |
|
|
Set_Reserved (Name_Access, Tok_Access);
|
| 69 |
|
|
Set_Reserved (Name_And, Tok_And);
|
| 70 |
|
|
Set_Reserved (Name_Aliased, Tok_Aliased);
|
| 71 |
|
|
Set_Reserved (Name_All, Tok_All);
|
| 72 |
|
|
Set_Reserved (Name_Array, Tok_Array);
|
| 73 |
|
|
Set_Reserved (Name_At, Tok_At);
|
| 74 |
|
|
Set_Reserved (Name_Begin, Tok_Begin);
|
| 75 |
|
|
Set_Reserved (Name_Body, Tok_Body);
|
| 76 |
|
|
Set_Reserved (Name_Case, Tok_Case);
|
| 77 |
|
|
Set_Reserved (Name_Constant, Tok_Constant);
|
| 78 |
|
|
Set_Reserved (Name_Declare, Tok_Declare);
|
| 79 |
|
|
Set_Reserved (Name_Delay, Tok_Delay);
|
| 80 |
|
|
Set_Reserved (Name_Delta, Tok_Delta);
|
| 81 |
|
|
Set_Reserved (Name_Digits, Tok_Digits);
|
| 82 |
|
|
Set_Reserved (Name_Do, Tok_Do);
|
| 83 |
|
|
Set_Reserved (Name_Else, Tok_Else);
|
| 84 |
|
|
Set_Reserved (Name_Elsif, Tok_Elsif);
|
| 85 |
|
|
Set_Reserved (Name_End, Tok_End);
|
| 86 |
|
|
Set_Reserved (Name_Entry, Tok_Entry);
|
| 87 |
|
|
Set_Reserved (Name_Exception, Tok_Exception);
|
| 88 |
|
|
Set_Reserved (Name_Exit, Tok_Exit);
|
| 89 |
|
|
Set_Reserved (Name_For, Tok_For);
|
| 90 |
|
|
Set_Reserved (Name_Function, Tok_Function);
|
| 91 |
|
|
Set_Reserved (Name_Generic, Tok_Generic);
|
| 92 |
|
|
Set_Reserved (Name_Goto, Tok_Goto);
|
| 93 |
|
|
Set_Reserved (Name_If, Tok_If);
|
| 94 |
|
|
Set_Reserved (Name_In, Tok_In);
|
| 95 |
|
|
Set_Reserved (Name_Is, Tok_Is);
|
| 96 |
|
|
Set_Reserved (Name_Limited, Tok_Limited);
|
| 97 |
|
|
Set_Reserved (Name_Loop, Tok_Loop);
|
| 98 |
|
|
Set_Reserved (Name_Mod, Tok_Mod);
|
| 99 |
|
|
Set_Reserved (Name_New, Tok_New);
|
| 100 |
|
|
Set_Reserved (Name_Not, Tok_Not);
|
| 101 |
|
|
Set_Reserved (Name_Null, Tok_Null);
|
| 102 |
|
|
Set_Reserved (Name_Of, Tok_Of);
|
| 103 |
|
|
Set_Reserved (Name_Or, Tok_Or);
|
| 104 |
|
|
Set_Reserved (Name_Others, Tok_Others);
|
| 105 |
|
|
Set_Reserved (Name_Out, Tok_Out);
|
| 106 |
|
|
Set_Reserved (Name_Package, Tok_Package);
|
| 107 |
|
|
Set_Reserved (Name_Pragma, Tok_Pragma);
|
| 108 |
|
|
Set_Reserved (Name_Private, Tok_Private);
|
| 109 |
|
|
Set_Reserved (Name_Procedure, Tok_Procedure);
|
| 110 |
|
|
Set_Reserved (Name_Protected, Tok_Protected);
|
| 111 |
|
|
Set_Reserved (Name_Raise, Tok_Raise);
|
| 112 |
|
|
Set_Reserved (Name_Range, Tok_Range);
|
| 113 |
|
|
Set_Reserved (Name_Record, Tok_Record);
|
| 114 |
|
|
Set_Reserved (Name_Rem, Tok_Rem);
|
| 115 |
|
|
Set_Reserved (Name_Renames, Tok_Renames);
|
| 116 |
|
|
Set_Reserved (Name_Requeue, Tok_Requeue);
|
| 117 |
|
|
Set_Reserved (Name_Return, Tok_Return);
|
| 118 |
|
|
Set_Reserved (Name_Reverse, Tok_Reverse);
|
| 119 |
|
|
Set_Reserved (Name_Select, Tok_Select);
|
| 120 |
|
|
Set_Reserved (Name_Separate, Tok_Separate);
|
| 121 |
|
|
Set_Reserved (Name_Subtype, Tok_Subtype);
|
| 122 |
|
|
Set_Reserved (Name_Tagged, Tok_Tagged);
|
| 123 |
|
|
Set_Reserved (Name_Task, Tok_Task);
|
| 124 |
|
|
Set_Reserved (Name_Terminate, Tok_Terminate);
|
| 125 |
|
|
Set_Reserved (Name_Then, Tok_Then);
|
| 126 |
|
|
Set_Reserved (Name_Type, Tok_Type);
|
| 127 |
|
|
Set_Reserved (Name_Until, Tok_Until);
|
| 128 |
|
|
Set_Reserved (Name_Use, Tok_Use);
|
| 129 |
|
|
Set_Reserved (Name_When, Tok_When);
|
| 130 |
|
|
Set_Reserved (Name_While, Tok_While);
|
| 131 |
|
|
Set_Reserved (Name_With, Tok_With);
|
| 132 |
|
|
Set_Reserved (Name_Xor, Tok_Xor);
|
| 133 |
|
|
|
| 134 |
|
|
-- Ada 2005 reserved words
|
| 135 |
|
|
|
| 136 |
|
|
Set_Reserved (Name_Interface, Tok_Interface);
|
| 137 |
|
|
Set_Reserved (Name_Overriding, Tok_Overriding);
|
| 138 |
|
|
Set_Reserved (Name_Synchronized, Tok_Synchronized);
|
| 139 |
|
|
|
| 140 |
|
|
-- Ada 2012 reserved words
|
| 141 |
|
|
|
| 142 |
|
|
Set_Reserved (Name_Some, Tok_Some);
|
| 143 |
|
|
|
| 144 |
|
|
end Initialize_Ada_Keywords;
|
| 145 |
|
|
|
| 146 |
|
|
------------------------
|
| 147 |
|
|
-- Restore_Scan_State --
|
| 148 |
|
|
------------------------
|
| 149 |
|
|
|
| 150 |
|
|
procedure Restore_Scan_State (Saved_State : Saved_Scan_State) is
|
| 151 |
|
|
begin
|
| 152 |
|
|
Scan_Ptr := Saved_State.Save_Scan_Ptr;
|
| 153 |
|
|
Token := Saved_State.Save_Token;
|
| 154 |
|
|
Token_Ptr := Saved_State.Save_Token_Ptr;
|
| 155 |
|
|
Current_Line_Start := Saved_State.Save_Current_Line_Start;
|
| 156 |
|
|
Start_Column := Saved_State.Save_Start_Column;
|
| 157 |
|
|
Checksum := Saved_State.Save_Checksum;
|
| 158 |
|
|
First_Non_Blank_Location := Saved_State.Save_First_Non_Blank_Location;
|
| 159 |
|
|
Token_Node := Saved_State.Save_Token_Node;
|
| 160 |
|
|
Token_Name := Saved_State.Save_Token_Name;
|
| 161 |
|
|
Prev_Token := Saved_State.Save_Prev_Token;
|
| 162 |
|
|
Prev_Token_Ptr := Saved_State.Save_Prev_Token_Ptr;
|
| 163 |
|
|
end Restore_Scan_State;
|
| 164 |
|
|
|
| 165 |
|
|
---------------------
|
| 166 |
|
|
-- Save_Scan_State --
|
| 167 |
|
|
---------------------
|
| 168 |
|
|
|
| 169 |
|
|
procedure Save_Scan_State (Saved_State : out Saved_Scan_State) is
|
| 170 |
|
|
begin
|
| 171 |
|
|
Saved_State.Save_Scan_Ptr := Scan_Ptr;
|
| 172 |
|
|
Saved_State.Save_Token := Token;
|
| 173 |
|
|
Saved_State.Save_Token_Ptr := Token_Ptr;
|
| 174 |
|
|
Saved_State.Save_Current_Line_Start := Current_Line_Start;
|
| 175 |
|
|
Saved_State.Save_Start_Column := Start_Column;
|
| 176 |
|
|
Saved_State.Save_Checksum := Checksum;
|
| 177 |
|
|
Saved_State.Save_First_Non_Blank_Location := First_Non_Blank_Location;
|
| 178 |
|
|
Saved_State.Save_Token_Node := Token_Node;
|
| 179 |
|
|
Saved_State.Save_Token_Name := Token_Name;
|
| 180 |
|
|
Saved_State.Save_Prev_Token := Prev_Token;
|
| 181 |
|
|
Saved_State.Save_Prev_Token_Ptr := Prev_Token_Ptr;
|
| 182 |
|
|
end Save_Scan_State;
|
| 183 |
|
|
|
| 184 |
|
|
end Scans;
|
