lazarus/components/jcf2/Process/Transform/AddBlockEndSemicolon.pas

105 lines
2.8 KiB
ObjectPascal

unit AddBlockEndSemicolon;
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is AddBlockEndSemicolon.pas, March 2004.
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 BaseVisitor;
type
TBlockEndSemicolon = class(TBaseTreeNodeVisitor)
private
protected
public
constructor Create; override;
procedure PostVisitParseTreeNode(const pcNode: TObject); override;
function IsIncludedInSettings: boolean; override;
end;
implementation
uses ParseTreeNode, ParseTreeNodeType,
JcfSettings, SourceToken, Tokens, TokenUtils;
constructor TBlockEndSemicolon.Create;
begin
inherited;
HasPostVisit := True;
HasSourceTokenVisit := False;
end;
procedure TBlockEndSemicolon.PostVisitParseTreeNode(const pcNode: TObject);
var
lcNode: TParseTreeNode;
lcStatementList: TParseTreeNode;
lcEnd: TSourceToken;
lcNew: TSourceToken;
begin
lcNode := TParseTreeNode(pcNode);
{ looking for a compound statement with begin..end }
if lcNode.NodeType <> nCompoundStatement then
exit;
if not lcNode.HasChildNode(ttBegin, 1) then
exit;
if not lcNode.HasChildNode(ttEnd, 1) then
exit;
{ extract the statement list between the begin & end }
lcStatementList := lcNode.GetImmediateChild(nStatementList);
if lcStatementList = nil then
exit;
{ what's the last source token in this block ? }
lcEnd := TSourceToken(lcStatementList.LastLeaf);
if lcEnd = nil then
exit;
if not lcEnd.IsSolid then
lcEnd := lcEnd.PriorSolidToken;
if lcEnd.TokenType <> ttSemiColon then
begin
lcNew := TSourceToken.Create;
lcNew.SourceCode := ';';
lcNew.TokenType := ttSemiColon;
InsertTokenAfter(lcEnd, lcNew);
end;
end;
function TBlockEndSemicolon.IsIncludedInSettings: boolean;
begin
Result := FormatSettings.Transform.AddBlockEndSemiColon;
end;
end.