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Diffstat (limited to 'src/ortho/debug/ortho_ident_hash.ads')
-rw-r--r-- | src/ortho/debug/ortho_ident_hash.ads | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/ortho/debug/ortho_ident_hash.ads b/src/ortho/debug/ortho_ident_hash.ads new file mode 100644 index 000000000..a6e4a56cc --- /dev/null +++ b/src/ortho/debug/ortho_ident_hash.ads @@ -0,0 +1,46 @@ +-- Ortho debug hashed identifiers implementation. +-- Copyright (C) 2005 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY +-- WARRANTY; without even the implied warranty of MERCHANTABILITY or +-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +-- for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. + +package Ortho_Ident_Hash is + type O_Ident is private; + O_Ident_Nul : constant O_Ident; + + function Get_Identifier (Str : String) return O_Ident; + function Get_String (Id : O_Ident) return String; + function Is_Equal (L, R : O_Ident) return Boolean renames "="; + function Is_Equal (Id : O_Ident; Str : String) return Boolean; + function Is_Nul (Id : O_Ident) return Boolean; +private + type Hash_Type is mod 2**32; + + type String_Acc is access constant String; + + -- Symbol table. + type Ident_Type; + type O_Ident is access Ident_Type; + type Ident_type is record + -- The hash for the symbol. + Hash : Hash_Type; + -- Identification of the symbol. + Ident : String_Acc; + -- Next symbol with the same collision. + Next : O_Ident; + end record; + + O_Ident_Nul : constant O_Ident := null; +end Ortho_Ident_Hash; |