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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- T R E E P R --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2017, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT 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 distributed with GNAT; see file COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Types; use Types;
package Treepr is
-- This package provides printing routines for the abstract syntax tree
-- These routines are intended only for debugging use.
procedure Tree_Dump;
-- This routine is called from the GNAT main program to dump trees as
-- requested by debug options (including tree of Standard if requested).
procedure Print_Tree_Node (N : Node_Id; Label : String := "");
-- Prints a single tree node, without printing descendants. The Label
-- string is used to preface each line of the printed output.
procedure Print_Node_Briefly (N : Node_Id);
-- Terse version of Print_Tree_Node
procedure Print_Tree_List (L : List_Id);
-- Prints a single node list, without printing the descendants of any
-- of the nodes in the list
procedure Print_Tree_Elist (E : Elist_Id);
-- Prints a single node list, without printing the descendants of any
-- of the nodes in the list
procedure Print_Node_Subtree (N : Node_Id);
-- Prints the subtree rooted at a specified tree node, including all
-- referenced descendants.
procedure Print_List_Subtree (L : List_Id);
-- Prints the subtree consisting of the given node list and all its
-- referenced descendants.
procedure Print_Elist_Subtree (E : Elist_Id);
-- Prints the subtree consisting of the given element list and all its
-- referenced descendants.
-- The following debugging procedures are intended to be called from gdb.
-- Note that in several cases there are synonyms which represent historical
-- development, and we keep them because some people are used to them!
function p (N : Union_Id) return Node_Or_Entity_Id;
function par (N : Union_Id) return Node_Or_Entity_Id;
pragma Export (Ada, p);
pragma Export (Ada, par);
-- Return parent of a list or node (depending on the value of N). If N
-- is neither a list nor a node id, then prints a message to that effect
-- and returns Empty.
procedure pn (N : Union_Id);
procedure pp (N : Union_Id);
procedure pe (N : Union_Id);
pragma Export (Ada, pn);
pragma Export (Ada, pp);
pragma Export (Ada, pe);
-- Print a node, node list, uint, or anything else that falls under
-- the definition of Union_Id. Historically this was only for printing
-- nodes, hence the name.
procedure pt (N : Union_Id);
procedure ppp (N : Union_Id);
pragma Export (Ada, pt);
pragma Export (Ada, ppp);
-- Same as pn/pp, except prints subtrees. For Nodes, it is exactly the same
-- as Print_Node_Subtree. For Elists it is the same as Print_Elist_Subtree.
-- For Lists, it is the same as Print_Tree_List. If given anything other
-- than a Node, List, or Elist, same effect as pn.
procedure pl (L : Int);
pragma Export (Ada, pl);
-- Same as Print_Tree_List, except that you can use e.g. 66 instead of
-- -99999966. In other words for the positive case we fill out to 8 digits
-- on the left and add a minus sign. This just saves some typing in the
-- debugger.
end Treepr;
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