/// <devdoc>
/// Moves to the next element. This returns false if we are at the end or are otherwise unable
/// to move.
/// </devdoc>
bool IEnumerator.MoveNext()
{
currentName = null;
string fileName = null;
// If we've already cached this guy once, use the cached data.
//
if (cachedNames != null && current < cachedNames.Count - 1)
{
current++;
currentName = (AssemblyName)cachedNames[current];
Debug.Assert(currentName != null, "cache is bunk.");
return(true);
}
// We normally only will loop through this while once. The only time we will
// go through it more than once is when we discover a file, and that file is an
// invalid assembly.
while (fileName == null ||
currentName == null /* SBurke -- workaround for CLR bug # VSWhidbey 211103, but it might be worth leaving in here anyway */)
{
if (name == null)
{
// No specific name, so match all components. Note that this is really slow -- VS takes forever
// to calculate this.
//
if (componentEnum == null)
{
NativeMethods.ThrowOnFailure(enumFactory.GetComponents(null, (int)CompEnum.CompEnumType_COMPlus, 0, out componentEnum));
selector = new VSCOMPONENTSELECTORDATA[1];
selector[0] = new VSCOMPONENTSELECTORDATA();
selector[0].dwSize = (uint)Marshal.SizeOf(typeof(VSCOMPONENTSELECTORDATA));
}
uint fetched;
NativeMethods.ThrowOnFailure(componentEnum.Next(1, selector, out fetched));
if (fetched == 0)
{
return(false);
}
Debug.Assert(selector[0].type == VSCOMPONENTTYPE.VSCOMPONENTTYPE_ComPlus, "Asked for CLR components but didn't get 'em.");
fileName = selector[0].bstrFile;
}
else
{
// We were given a specific name to match. Do a path based reference on sdk paths and
// then match files within that path.
//
if (componentEnum == null)
{
NativeMethods.ThrowOnFailure(enumFactory.GetComponents(null, (int)CompEnum.CompEnumType_AssemblyPaths, 0, out componentEnum));
selector = new VSCOMPONENTSELECTORDATA[1];
selector[0] = new VSCOMPONENTSELECTORDATA();
selector[0].dwSize = (uint)Marshal.SizeOf(typeof(VSCOMPONENTSELECTORDATA));
}
while (true)
{
uint fetched;
NativeMethods.ThrowOnFailure(componentEnum.Next(1, selector, out fetched));
if (fetched == 0)
{
return(false);
}
Debug.Assert(selector[0].type == VSCOMPONENTTYPE.VSCOMPONENTTYPE_Path, "Asked for sdk paths but didn't get 'em.");
string assemblyPath = Path.Combine(selector[0].bstrFile, name);
if (File.Exists(assemblyPath))
{
fileName = assemblyPath;
break;
}
}
}
Debug.Assert(fileName != null, "We should have always retrieved a file name here.");
try {
currentName = AssemblyName.GetAssemblyName(fileName);
}
catch (FileLoadException) {
// This file is invalid. Null the name so we continue our loop.
fileName = null;
}
catch (BadImageFormatException) {
// This file is invalid. Null the name so we continue our loop.
fileName = null;
}
}
// Store this assembly name in our cache, because they're quite expensive to get.
//
if (cachedNames == null)
{
cachedNames = new ArrayList();
}
cachedNames.Add(currentName);
current++;
return(true);
}
/// <devdoc>
/// Moves to the next element. This returns false if we are at the end or are otherwise unable
/// to move.
/// </devdoc>
bool IEnumerator.MoveNext()
{
currentName = null;
string fileName = null;
// If we've already cached this guy once, use the cached data.
//
if (cachedNames != null && current < cachedNames.Count - 1)
{
current++;
currentName = (AssemblyName)cachedNames[current];
Debug.Assert(currentName != null, "cache is bunk.");
return(true);
}
if (name == null)
{
// No specific name, so match all components. Note that this is really slow -- VS takes forever
// to calculate this.
//
if (componentEnum == null)
{
enumFactory.GetComponents(null, CompEnumType.CompEnumType_COMPlus, false, out componentEnum);
selector = new _VSCOMPONENTSELECTORDATA[1];
selector[0] = new _VSCOMPONENTSELECTORDATA();
selector[0].dwSize = (uint)Marshal.SizeOf(typeof(_VSCOMPONENTSELECTORDATA));
}
uint fetched;
int hr = componentEnum.Next(1, selector, out fetched);
if (hr != 0)
{
return(false);
}
Debug.Assert(selector[0].type == __VSCOMPONENTTYPE.VSCOMPONENTTYPE_ComPlus, "Asked for CLR components but didn't get 'em.");
fileName = selector[0].bstrFile;
}
else
{
// We were given a specific name to match. Do a path based reference on sdk paths and
// then match files within that path.
//
if (componentEnum == null)
{
enumFactory.GetComponents(null, CompEnumType.CompEnumType_AssemblyPaths, false, out componentEnum);
selector = new _VSCOMPONENTSELECTORDATA[1];
selector[0] = new _VSCOMPONENTSELECTORDATA();
selector[0].dwSize = (uint)Marshal.SizeOf(typeof(_VSCOMPONENTSELECTORDATA));
}
while (true)
{
uint fetched;
int hr = componentEnum.Next(1, selector, out fetched);
if (hr != 0)
{
return(false);
}
Debug.Assert(selector[0].type == __VSCOMPONENTTYPE.VSCOMPONENTTYPE_Path, "Asked for sdk paths but didn't get 'em.");
string assemblyPath = Path.Combine(selector[0].bstrFile, name);
if (File.Exists(assemblyPath))
{
fileName = assemblyPath;
break;
}
}
}
Debug.Assert(fileName != null, "We should have always retrieved a file name here.");
currentName = AssemblyName.GetAssemblyName(fileName);
// Store this assembly name in our cache, because they're quite expensive to get.
//
if (cachedNames == null)
{
cachedNames = new ArrayList();
}
cachedNames.Add(currentName);
current++;
return(true);
}
