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240 lines
8.0 KiB
ObjectPascal
240 lines
8.0 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Peter Vreman
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This unit implements the parsing of the switches like $I-
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit switches;
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{$i fpcdefs.inc}
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interface
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procedure HandleSwitch(switch,state:char);
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function CheckSwitch(switch,state:char):boolean;
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implementation
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uses
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globtype,systems,
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globals,verbose,fmodule;
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{****************************************************************************
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Main Switches Parsing
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****************************************************************************}
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type
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TSwitchType=(ignoredsw,localsw,modulesw,globalsw,illegalsw,unsupportedsw);
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SwitchRec=record
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typesw : TSwitchType;
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setsw : byte;
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end;
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SwitchRecTable = array['A'..'Z'] of SwitchRec;
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const
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turboSwitchTable: SwitchRecTable =(
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{A} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{B} (typesw:localsw; setsw:ord(cs_full_boolean_eval)),
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{C} (typesw:localsw; setsw:ord(cs_do_assertion)),
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{D} (typesw:modulesw; setsw:ord(cs_debuginfo)),
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{E} (typesw:modulesw; setsw:ord(cs_fp_emulation)),
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{F} (typesw:ignoredsw; setsw:ord(cs_localnone)),
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{G} (typesw:ignoredsw; setsw:ord(cs_localnone)),
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{H} (typesw:localsw; setsw:ord(cs_ansistrings)),
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{I} (typesw:localsw; setsw:ord(cs_check_io)),
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{J} (typesw:localsw; setsw:ord(cs_typed_const_writable)),
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{K} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{$ifdef supportbrowser}
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{L} (typesw:modulesw; setsw:ord(cs_local_browser)),
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{$else supportbrowser}
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{L} (typesw:modulesw; setsw:ord(cs_localnone)),
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{$endif supportbrowser}
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{M} (typesw:localsw; setsw:ord(cs_generate_rtti)),
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{N} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{O} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{P} (typesw:modulesw; setsw:ord(cs_openstring)),
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{Q} (typesw:localsw; setsw:ord(cs_check_overflow)),
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{R} (typesw:localsw; setsw:ord(cs_check_range)),
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{S} (typesw:localsw; setsw:ord(cs_check_stack)),
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{T} (typesw:localsw; setsw:ord(cs_typed_addresses)),
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{U} (typesw:illegalsw; setsw:ord(cs_localnone)),
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{V} (typesw:localsw; setsw:ord(cs_strict_var_strings)),
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{W} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{X} (typesw:modulesw; setsw:ord(cs_extsyntax)),
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{$ifdef supportbrowser}
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{Y} (typesw:modulesw; setsw:ord(cs_browser)),
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{$else supportbrowser}
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{Y} (typesw:modulesw; setsw:ord(cs_localnone)),
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{$endif supportbrowser}
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{Z} (typesw:illegalsw; setsw:ord(cs_localnone))
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);
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macSwitchTable: SwitchRecTable =(
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{A} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{B} (typesw:localsw; setsw:ord(cs_full_boolean_eval)),
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{C} (typesw:localsw; setsw:ord(cs_do_assertion)),
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{D} (typesw:modulesw; setsw:ord(cs_debuginfo)),
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{E} (typesw:modulesw; setsw:ord(cs_fp_emulation)),
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{F} (typesw:ignoredsw; setsw:ord(cs_localnone)),
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{G} (typesw:ignoredsw; setsw:ord(cs_localnone)),
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{H} (typesw:localsw; setsw:ord(cs_ansistrings)),
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{I} (typesw:localsw; setsw:ord(cs_check_io)),
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{J} (typesw:localsw; setsw:ord(cs_external_var)),
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{K} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{L} (typesw:modulesw; setsw:ord(cs_local_browser)),
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{M} (typesw:localsw; setsw:ord(cs_generate_rtti)),
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{N} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{O} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{P} (typesw:modulesw; setsw:ord(cs_openstring)),
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{Q} (typesw:localsw; setsw:ord(cs_check_overflow)),
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{R} (typesw:localsw; setsw:ord(cs_check_range)),
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{S} (typesw:localsw; setsw:ord(cs_check_stack)),
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{T} (typesw:localsw; setsw:ord(cs_typed_addresses)),
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{U} (typesw:illegalsw; setsw:ord(cs_localnone)),
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{V} (typesw:localsw; setsw:ord(cs_strict_var_strings)),
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{W} (typesw:unsupportedsw; setsw:ord(cs_localnone)),
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{X} (typesw:modulesw; setsw:ord(cs_extsyntax)),
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{Y} (typesw:modulesw; setsw:ord(cs_browser)),
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{Z} (typesw:localsw; setsw:ord(cs_externally_visible))
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);
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procedure HandleSwitch(switch,state:char);
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var
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switchTablePtr: ^SwitchRecTable;
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begin
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switch:=upcase(switch);
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{ Is the Switch in the letters ? }
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if not ((switch in ['A'..'Z']) and (state in ['-','+'])) then
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begin
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Message(scan_w_illegal_switch);
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exit;
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end;
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{ Select switch table }
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if m_mac in aktmodeswitches then
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switchTablePtr:= @macSwitchTable
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else
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switchTablePtr:= @turboSwitchTable;
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{ Handle the switch }
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with switchTablePtr^[switch] do
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begin
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case typesw of
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ignoredsw : Message1(scan_n_ignored_switch,'$'+switch);
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illegalsw : Message1(scan_w_illegal_switch,'$'+switch);
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unsupportedsw : Message1(scan_w_unsupported_switch,'$'+switch);
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localsw : begin
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if not localswitcheschanged then
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nextaktlocalswitches:=aktlocalswitches;
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if state='+' then
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include(nextaktlocalswitches,tlocalswitch(setsw))
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else
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exclude(nextaktlocalswitches,tlocalswitch(setsw));
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localswitcheschanged:=true;
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end;
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modulesw : begin
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if current_module.in_global then
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begin
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if state='+' then
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include(aktmoduleswitches,tmoduleswitch(setsw))
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else
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begin
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{ Turning off debuginfo when lineinfo is requested
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is not possible }
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if not((cs_gdb_lineinfo in aktglobalswitches) and
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(tmoduleswitch(setsw)=cs_debuginfo)) then
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exclude(aktmoduleswitches,tmoduleswitch(setsw));
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end;
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end
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else
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Message(scan_w_switch_is_global);
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end;
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globalsw : begin
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if current_module.in_global and (current_module=main_module) then
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begin
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if state='+' then
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include(aktglobalswitches,tglobalswitch(setsw))
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else
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exclude(aktglobalswitches,tglobalswitch(setsw));
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end
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else
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Message(scan_w_switch_is_global);
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end;
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end;
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end;
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end;
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function CheckSwitch(switch,state:char):boolean;
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var
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found : boolean;
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switchTablePtr: ^SwitchRecTable;
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begin
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switch:=upcase(switch);
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{ Is the Switch in the letters ? }
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if not ((switch in ['A'..'Z']) and (state in ['-','+'])) then
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begin
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Message(scan_w_illegal_switch);
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CheckSwitch:=false;
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exit;
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end;
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{ Select switch table }
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if m_mac in aktmodeswitches then
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switchTablePtr:= @macSwitchTable
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else
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switchTablePtr:= @turboSwitchTable;
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{ Check the switch }
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with switchTablePtr^[switch] do
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begin
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case typesw of
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localsw : found:=(tlocalswitch(setsw) in aktlocalswitches);
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modulesw : found:=(tmoduleswitch(setsw) in aktmoduleswitches);
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globalsw : found:=(tglobalswitch(setsw) in aktglobalswitches);
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else
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found:=false;
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end;
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if state='-' then
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found:=not found;
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CheckSwitch:=found;
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end;
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end;
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end.
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{
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$Log$
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Revision 1.16 2004-08-27 21:59:26 peter
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browser disabled
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uf_local_symtable ppu flag when a localsymtable is stored
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Revision 1.15 2004/07/14 23:19:22 olle
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+ added external facilities for macpas
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Revision 1.14 2004/06/20 08:55:30 florian
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* logs truncated
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}
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