-- --
-- S p e c --
-- --
--- --
--- Copyright (C) 1992-2000 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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 2, or (at your option) any later ver- --
+-- 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 COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- subtree with an expression. Once the substitution is completed, the
-- Expand routine must call Analyze on the resulting node to do any
-- required semantic analysis. Note that references to children copied
--- from the old tree won't be reanalyzed, since their Analyze flag is set.
+-- from the old tree won't be reanalyzed, since their Analyzed flag
+-- is set.
-- Nodes that are subexpressions (Nkind in N_Subexpr)
procedure Expander_Mode_Save_And_Set (Status : Boolean);
-- Saves the current setting of the Expander_Active flag on an internal
-- stack and then sets the flag to the given value.
+ --
+ -- Note: this routine has no effect in ASIS_Mode. In ASIS_Mode, all
+ -- expansion activity is always off, since we want the original semantic
+ -- tree for ASIS purposes without any expansion. This is achieved by
+ -- setting Expander_Active False in ASIS_Mode. In situations such as
+ -- the call to Instantiate_Bodies in Frontend, Expander_Mode_Save_And_Set
+ -- may be called to temporarily turn the expander on, but this will have
+ -- no effect in ASIS mode.
procedure Expander_Mode_Restore;
-- Restores the setting of the Expander_Active flag using the top entry
-- pushed onto the stack by Expander_Mode_Save_And_Reset, popping the
-- stack, except that if any errors have been detected, then the state
- -- of the flag is left set to False.
+ -- of the flag is left set to False. Disabled for ASIS_Mode (see above).
end Expander;
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