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-- Walk in iirs nodes.
-- Copyright (C) 2009 Tristan Gingold
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <gnu.org/licenses>.
with Vhdl.Nodes; use Vhdl.Nodes;
package Vhdl.Nodes_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 Vhdl.Nodes_Walk;
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