From 794bde9c4438577ea4427a770aac19e4f2f0f9ea Mon Sep 17 00:00:00 2001
From: skalogryz <skalogryz@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Thu, 27 Mar 2008 15:27:00 +0000
Subject: [PATCH] precompiler added

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@389 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 bindings/pascocoa/parser/objcparser.pas | 54 +++++++++++++++++++++++--
 1 file changed, 51 insertions(+), 3 deletions(-)

diff --git a/bindings/pascocoa/parser/objcparser.pas b/bindings/pascocoa/parser/objcparser.pas
index 52bd98112..fc16db455 100755
--- a/bindings/pascocoa/parser/objcparser.pas
+++ b/bindings/pascocoa/parser/objcparser.pas
@@ -14,22 +14,69 @@ program Project1;
 uses
   Classes, SysUtils, ObjCParserUtils, ObjCParserTypes;
 
+type
+  // this object is used only for precomile directives handling
+  TPrecompileHandler = class(TObject)
+  public
+    hdr : TObjCHeader;
+    procedure OnPrecompile(Sender: TObject);
+    constructor Create(AHeader: TObjCHeader);
+  end;
+  
+procedure TPrecompileHandler.OnPrecompile(Sender: TObject);
+var
+  parser    : TTextParser;
+  preEntity : TPrecompiler;
+  lst       : TEntity;
+  prc       : TNotifyEvent;
+begin
+  parser := Sender as TTextParser;
+  //todo: change for something nicier =)
+  prc := parser.OnPrecompile;
+  parser.OnPrecompile := nil;
+  try
+    if parser.Stack.Count > 0 then
+      lst := TEntity(parser.Stack[parser.Stack.Count-1])
+    else
+      lst := nil;
+
+    preEntity := TPrecompiler.Create(lst);
+    preEntity.Parse(parser);
+    //writeln('added to: ', lst.ClassName, ' ', preEntity._Directive + preEntity._Params);
+    lst.Items.Add(preEntity);
+    //write('// debug: ');
+    //writeln('precompile: ', preEntity._Directive, ', params:', preEntity._Params);
+  finally
+    parser.OnPrecompile := prc;
+  end;
+end;
+
+constructor TPrecompileHandler.Create(AHeader: TObjCHeader);
+begin
+  hdr := AHeader;
+end;
+
 procedure ReadAndParseFile(const FileName: AnsiString; outdata: TStrings);
 var
-  hdr : TObjCHeader;
-  txt : TTextParser;
-  s   : AnsiString;
+  hdr   : TObjCHeader;
+  txt   : TTextParser;
+  prec  : TPrecompileHandler;
+  s     : AnsiString;
 begin
   if not FileExists(FileName) then
     Exit;
   
   s := StrFromFile(FileName);
   hdr := TObjCHeader.Create;
+  prec := TPrecompileHandler.Create(hdr);
   txt := TTextParser.Create;
   txt.TokenTable := CreateObjCTokenTable;
+
   try
     txt.Buf := s;
     try
+      txt.TokenTable.Precompile := '#';
+      txt.OnPrecompile := prec.OnPrecompile;
       hdr._FileName := ExtractFileName(FileName);
       hdr.Parse(txt);
     except
@@ -39,6 +86,7 @@ begin
     hdr.Free;
     txt.TokenTable.Free;
     txt.Free;
+    prec.Free;
   end;
 end;