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Posted 17 Mar 2000

ATL/AUX Library

, 17 Mar 2000
A set of VC++ helpers and patterns to help automate some routine coding tasks.
////////////////////////////////////////////////////////////////////////////////
// Generate COMDAT GUIDs, as well as IIDs and smart pointer includes
// for interface names via __uuidof().
// (c) Andrew Nosenko (andien@geocities.com)
//
// Run this script against any text file containing interface names.
// E.g.:
//
//   dumpbin /LINKERMEMBER Uuid.lib >ax
//   cscript idgen.js ax
// 
// Or:
//
//   cscript idgen.js MyProject_i.c MyProject_id.h MyProject_sp.h
//

var fileSys = new ActiveXObject("Scripting.FileSystemObject");

if ( WScript.Arguments.Count() < 1 ) {
  WScript.Echo("cscript " + fileSys.GetFileName(WScript.ScriptFullName) + " <in_file> [<out_id> [<out_sp>]]");
  WScript.Quit();
}

var fileIn = fileSys.GetFile(WScript.Arguments.Item(0));
var streamIn = fileIn.OpenAsTextStream();

var re = /(D?IID_(\w+))/;
var dic = new Object;
var count = 0;

var reGUID = /const\s+((IID)|(CLSID))\s+(\w+)\s+=\s+(\{.+\};)/
var reGUID_MIDL = /MIDL_DEFINE_GUID\((\w+),\s(\w+),(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+,)(\w+)\);/

var dicGUID = new Object;
var countGUID = 0;

while ( !streamIn.AtEndOfStream ) {
  str = streamIn.ReadLine();
  if ( re.exec(str) != null ) {
    iid = RegExp.$1;
    if ( iid == "IID_DEFINED__" ) continue;
    iface = RegExp.$2;
    if ( !dic[iface] ) {
      dic[iface] = iid;
      count++;
    }
  }
  var a = reGUID_MIDL.exec(str);
  if ( a != null ) {
    guid = a[2];
    if ( !dicGUID[guid] ) {
      dicGUID[guid] = "EXTERN_C const "+a[1]+" __declspec(selectany) " + guid + 
      " = {"+a[3]+a[4]+a[5]+"{"+a[6]+a[7]+a[8]+a[9]+a[10]+a[11]+a[12]+a[13]+"}};"
      countGUID++;
    }
  }
  if ( reGUID.exec(str) != null ) {
    guid = RegExp.$4
    if ( !dicGUID[guid] ) {
      dicGUID[guid] = "EXTERN_C const "+RegExp.$1+" __declspec(selectany) "+guid+" = "+RegExp.$5;
      countGUID++;
    }
  }
}
streamIn.Close();

WScript.Echo("GUIDs: "+countGUID+", Interfaces: "+count);

var outFileName;
if ( WScript.Arguments.Count() > 1 ) outFileName = WScript.Arguments.Item(1)
else outFileName = fileSys.GetBaseName(WScript.Arguments.Item(0)) + "_id.h";
var streamOut = fileSys.CreateTextFile(outFileName);

var outFileNameSp;
if ( WScript.Arguments.Count() > 2 ) outFileNameSp = WScript.Arguments.Item(2)
else outFileNameSp = fileSys.GetBaseName(WScript.Arguments.Item(0)) + "_sp.h";
var streamOutSp = fileSys.CreateTextFile(outFileNameSp);

var date = new Date();
streamOut.WriteLine(
  "// Interface identifiers -- by Andrew Nosenko (andien@geocities.com)\n"+
  "// " + date + "\n");
streamOutSp.WriteLine(
  "// Smart pointers -- by Andrew Nosenko (andien@geocities.com)\n"+
  "// " + date + "\n");

// define comdat GUIDs
var guidScope = fileSys.GetBaseName(outFileName)+"_"+date.getTime();
streamOut.WriteLine(
  "// Named GUIDs\n"+
  "#ifndef "+guidScope+"\n"+
  "#define "+guidScope);
for ( var guid in dicGUID ) {
  streamOut.WriteLine(dicGUID[guid]);
//  WScript.Echo(guid);
}
streamOut.WriteLine("#endif // "+guidScope+"\n");

// IIDs and SPs
for ( var iface in dic ) {
  var iid = dic[iface];
  // define IID
  streamOut.WriteLine("#if defined(__" + iface + "_FWD_DEFINED__) && !defined(" + iid +")");
  streamOut.WriteLine("#define " + iid + " __uuidof(" + iface + ")");
  streamOut.WriteLine("#endif");
  // define IPtr
  streamOutSp.WriteLine("#ifdef __" + iface + "_FWD_DEFINED__");
  streamOutSp.WriteLine("_COM_SMARTPTR_TYPEDEF("+ iface +", " + iid + ");");
  streamOutSp.WriteLine("#endif");
//  WScript.Echo(iface);
}

streamOut.Close();
streamOutSp.Close();

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About the Author

Andrew Nosenko
Engineer
Australia Australia
No Biography provided

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