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158 lines
4.4 KiB
ObjectPascal
158 lines
4.4 KiB
ObjectPascal
{(*}
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(*------------------------------------------------------------------------------
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Delphi Code formatter source code
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The Original Code is AlignVars.pas, released April 2000.
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The Initial Developer of the Original Code is Anthony Steele.
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Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
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All Rights Reserved.
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Contributor(s): Anthony Steele.
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The contents of this file are subject to the Mozilla Public License Version 1.1
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(the "License"). you may not use this file except in compliance with the License.
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You may obtain a copy of the License at http://www.mozilla.org/NPL/
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied.
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See the License for the specific language governing rights and limitations
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under the License.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 2 or later (the "GPL")
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See http://www.gnu.org/licenses/gpl.html
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------------------------------------------------------------------------------*)
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{*)}
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unit AlignVars;
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{ AFS 12 Feb 2K
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Align the RHS of var types
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}
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{$I JcfGlobal.inc}
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interface
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uses SourceToken, AlignBase;
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type
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TFoundTokenState = (eBefore, eOn, eAfter, eUnknown);
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TAlignVars = class(TAlignBase)
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protected
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feFoundTokenState: TFoundTokenState;
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function AlignedToken(const pt: TSourceToken): boolean; virtual;
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{ TokenProcessor overrides }
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function IsTokenInContext(const pt: TSourceToken): boolean; override;
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{ AlignStatements overrides }
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function TokenIsAligned(const pt: TSourceToken): boolean; override;
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function TokenEndsStatement(const pt: TSourceToken): boolean; override;
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procedure OnTokenRead(const pt: TSourceToken); override;
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procedure ResetState; override;
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public
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constructor Create; override;
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function IsIncludedInSettings: boolean; override;
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end;
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implementation
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uses
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{ local}Tokens, FormatFlags, JcfSettings,
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ParseTreeNodeType,
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TokenUtils, Nesting;
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{ TAlignVars }
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constructor TAlignVars.Create;
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begin
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inherited;
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FormatFlags := FormatFlags + [eAlignVars];
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feFoundTokenState := eUnknown;
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end;
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function TAlignVars.AlignedToken(const pt: TSourceToken): boolean;
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const
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NOT_ALIGNED: TTokenTypeSet = [ttWhiteSpace, ttReturn, ttComment, ttSemiColon, ttColon];
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begin
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Result := ( not (pt.TokenType in NOT_ALIGNED)) and
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pt.HasParentNode(nVarSection) and pt.IsOnRightOf(nVarDecl, ttColon);
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end;
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procedure TAlignVars.OnTokenRead(const pt: TSourceToken);
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begin
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inherited;
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{ when we get the colon, we are now *before* the target token
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on the next on-whitespace token we are *on* it,
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any token after that, we are *after* it
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unknown status is there to match the very first token in the block }
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if pt.TokenType = ttColon then
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feFoundTokenState := eBefore
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else if AlignedToken(pt) and
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(feFoundTokenState in [eUnknown, eBefore]) then
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feFoundTokenState := eOn
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else if feFoundTokenState = eOn then
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feFoundTokenState := eAfter
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else if feFoundTokenState = eUnknown then
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feFoundTokenState := eBefore;
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end;
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procedure TAlignVars.ResetState;
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begin
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inherited;
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feFoundTokenState := eUnknown;
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end;
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function TAlignVars.TokenEndsStatement(const pt: TSourceToken): boolean;
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begin
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if pt = nil then
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Result := True
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{ only look at solid tokens }
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else if (pt.TokenType in [ttReturn, ttWhiteSpace]) then
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begin
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// ended by a blank line
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Result := IsBlankLineEnd(pt);
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end
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else
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begin
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Result := (pt.TokenType = ttSemiColon) or ( not pt.HasParentNode(nVarSection));
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end;
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end;
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function TAlignVars.IsTokenInContext(const pt: TSourceToken): boolean;
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begin
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Result := (pt.HasParentNode(nVarSection)) and (RoundBracketLevel(pt) < 1) and
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(( not FormatSettings.Align.InterfaceOnly) or (pt.HasParentNode(nInterfaceSection)));
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end;
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function TAlignVars.TokenIsAligned(const pt: TSourceToken): boolean;
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begin
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{ the local var feFoundTokenState is used to recognise the first token
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in the type after the colon }
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Result := (feFoundTokenState in [eOn, eUnknown]) and AlignedToken(pt);
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if Result and (pt.Nestings.GetLevel(nlRecordType) > 0) then
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Result := False;
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if Result and (RoundBracketLevel(pt) > 0) then
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Result := False;
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end;
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function TAlignVars.IsIncludedInSettings: boolean;
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begin
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Result := ( not FormatSettings.Obfuscate.Enabled) and FormatSettings.Align.AlignVar;
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end;
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end.
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