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unit RemoveReturn;
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is RemoveReturn, released May 2003.
The Initial Developer of the Original Code is Anthony Steele.
Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
All Rights Reserved.
Contributor(s): Anthony Steele.
The contents of this file are subject to the Mozilla Public License Version 1.1
(the "License"). you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.mozilla.org/NPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied.
See the License for the specific language governing rights and limitations
under the License.
Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 or later (the "GPL")
See http://www.gnu.org/licenses/gpl.html
------------------------------------------------------------------------------*)
{*)}
{$I JcfGlobal.inc}
interface
uses SwitchableVisitor;
type
TRemoveReturn = class(TSwitchableVisitor)
protected
function EnabledVisitSourceToken(const pcNode: TObject): Boolean; override;
public
constructor Create; override;
end;
implementation
uses SourceToken, Tokens, ParseTreeNodeType, FormatFlags;
constructor TRemoveReturn.Create;
begin
inherited;
FormatFlags := FormatFlags + [eObfuscate];
end;
function TRemoveReturn.EnabledVisitSourceToken(const pcNode: TObject): boolean;
var
lcSourceToken, lcPrev: TSourceToken;
begin
Result := False;
lcSourceToken := TSourceToken(pcNode);
// only act on returns
if lcSourceToken.TokenType <> ttReturn then
exit;
{ not in asm }
if lcSourceToken.HasParentNode(nAsm) then
exit;
// never remove the return after a comment like this
lcPrev := lcSourceToken.PriorTokenWithExclusions([ttWhiteSpace]);
if (lcPrev <> nil) and (lcPrev.TokenType = ttComment) and
(lcPrev.CommentStyle = eDoubleSlash) then
exit;
// transmute to white space - may be needed as seperator
lcSourceToken.SourceCode := ' ';
lcSourceToken.TokenType := ttWhiteSpace;
end;
end.
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