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-- Walk in iirs nodes.
-- Copyright (C) 2009 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.
with Iirs; use Iirs;
package Iirs_Walk is
type Walk_Status is
(
-- Continue to walk.
Walk_Continue,
-- Stop walking in the subtree, continue in the parent tree.
Walk_Up,
-- Abort the walk.
Walk_Abort);
type Walk_Cb is access function (El : Iir) return Walk_Status;
-- Walk on all elements of CHAIN.
function Walk_Chain (Chain : Iir; Cb : Walk_Cb) return Walk_Status;
function Walk_Assignment_Target (Target : Iir; Cb : Walk_Cb)
return Walk_Status;
-- Walk on all stmts and sub-stmts of CHAIN.
function Walk_Sequential_Stmt_Chain (Chain : Iir; Cb : Walk_Cb)
return Walk_Status;
-- Walk on all design units of library or design file PARENT.
function Walk_Design_Units (Parent : Iir; Cb : Walk_Cb) return Walk_Status;
-- Walk on all concurrent statements (and sub statements) of CHAIN.
function Walk_Concurrent_Statements_Chain (Chain : Iir; Cb : Walk_Cb)
return Walk_Status;
end Iirs_Walk;
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