mirror of
https://github.com/moparisthebest/Simba
synced 2024-12-24 00:08:52 -05:00
6f80c64d9c
git-svn-id: http://www.villavu.com/repositories/merlijn/mufasa@38 3f818213-9676-44b0-a9b4-5e4c4e03d09d
159 lines
4.3 KiB
ObjectPascal
159 lines
4.3 KiB
ObjectPascal
{ Compiletime DLL importing support }
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unit uPSC_dll;
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{$I PascalScript.inc}
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interface
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{
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Function FindWindow(c1, c2: PChar): Cardinal; external 'FindWindow@user32.dll stdcall';
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}
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uses
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uPSCompiler, uPSUtils;
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{$IFDEF DELPHI3UP }
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resourceString
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{$ELSE }
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const
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{$ENDIF }
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RPS_Invalid_External = 'Invalid External';
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RPS_InvalidCallingConvention = 'Invalid Calling Convention';
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function DllExternalProc(Sender: TPSPascalCompiler; Decl: TPSParametersDecl; const OriginalName, FExternal: tbtstring): TPSRegProc;
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type
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TDllCallingConvention = (clRegister
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, clPascal
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, ClCdecl
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, ClStdCall
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);
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var
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DefaultCC: TDllCallingConvention;
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procedure RegisterDll_Compiletime(cs: TPSPascalCompiler);
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implementation
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function rpos(ch: tbtchar; const s: tbtstring): Longint;
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var
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i: Longint;
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begin
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for i := length(s) downto 1 do
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if s[i] = ch then begin Result := i; exit; end;
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result := 0;
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end;
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function RemoveQuotes(s: tbtstring): tbtstring;
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begin
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result := s;
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if result = '' then exit;
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if Result[1] = '"' then delete(result ,1,1);
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if (Result <> '') and (Result[Length(result)] = '"') then delete(result, length(result), 1);
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end;
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function DllExternalProc(Sender: TPSPascalCompiler; Decl: TPSParametersDecl; const OriginalName, FExternal: tbtstring): TPSRegProc;
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var
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FuncName,
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Name,
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FuncCC, s, s2: AnsiString;
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CC: TDllCallingConvention;
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DelayLoad, LoadWithAlteredSearchPath: Boolean;
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begin
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Name := FastUpperCase(OriginalName);
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DelayLoad := False;
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LoadWithAlteredSearchPath := false;
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FuncCC := FExternal;
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if (pos(tbtChar('@'), FuncCC) = 0) then
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begin
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Sender.MakeError('', ecCustomError, tbtString(RPS_Invalid_External));
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Result := nil;
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exit;
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end;
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FuncName := copy(FuncCC, 1, rpos('@', FuncCC)-1)+#0;
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delete(FuncCc, 1, length(FuncName));
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if pos(tbtchar(' '), Funccc) <> 0 then
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begin
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if FuncCC[1] = '"' then
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begin
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Delete(FuncCC, 1, 1);
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FuncName := RemoveQuotes(copy(FuncCC, 1, pos(tbtchar('"'), FuncCC)-1))+#0+FuncName;
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Delete(FuncCC,1, pos(tbtchar('"'), FuncCC));
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if (FuncCC <> '') and( FuncCC[1] = ' ') then delete(FuncCC,1,1);
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end else
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begin
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FuncName := copy(FuncCc, 1, pos(tbtchar(' '),FuncCC)-1)+#0+FuncName;
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Delete(FuncCC, 1, pos(tbtchar(' '), FuncCC));
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end;
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if pos(tbtchar(' '), FuncCC) > 0 then
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begin
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s := Copy(FuncCC, pos(tbtchar(' '), Funccc)+1, MaxInt);
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FuncCC := FastUpperCase(Copy(FuncCC, 1, pos(tbtchar(' '), FuncCC)-1));
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Delete(FuncCC, pos(tbtchar(' '), Funccc), MaxInt);
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repeat
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if pos(tbtchar(' '), s) > 0 then begin
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s2 := Copy(s, 1, pos(tbtchar(' '), s)-1);
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delete(s, 1, pos(tbtchar(' '), s));
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end else begin
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s2 := s;
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s := '';
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end;
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if FastUppercase(s2) = 'DELAYLOAD' then
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DelayLoad := True
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{$IFNDEF LINUX}
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else
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if FastUppercase(s2) = 'LOADWITHALTEREDSEARCHPATH' then
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LoadWithAlteredSearchPath := True
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{$ENDIF}
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else
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begin
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Sender.MakeError('', ecCustomError, 'Invalid External');
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Result := nil;
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exit;
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end;
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until s = '';
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end else
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FuncCC := FastUpperCase(FuncCC);
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if FuncCC = 'STDCALL' then cc := ClStdCall else
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if FuncCC = 'CDECL' then cc := ClCdecl else
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if FuncCC = 'REGISTER' then cc := clRegister else
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if FuncCC = 'PASCAL' then cc := clPascal else
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begin
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Sender.MakeError('', ecCustomError, tbtstring(RPS_InvalidCallingConvention));
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Result := nil;
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exit;
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end;
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end else
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begin
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FuncName := RemoveQuotes(FuncCC)+#0+FuncName;
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FuncCC := '';
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cc := DefaultCC;
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end;
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FuncName := 'dll:'+FuncName+tbtchar(cc)+tbtchar(bytebool(DelayLoad)) +tbtchar(bytebool(LoadWithAlteredSearchPath))+ declToBits(Decl);
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Result := TPSRegProc.Create;
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Result.ImportDecl := FuncName;
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Result.Decl.Assign(Decl);
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Result.Name := Name;
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Result.OrgName := OriginalName;
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Result.ExportName := False;
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end;
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procedure RegisterDll_Compiletime(cs: TPSPascalCompiler);
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begin
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cs.OnExternalProc := DllExternalProc;
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cs.AddFunction('procedure UnloadDll(s: string)');
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cs.AddFunction('function DLLGetLastError: Longint');
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end;
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begin
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DefaultCc := clRegister;
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end.
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