public static IDisposable With(
[CanBeNull] this ITextTemplatingComponents components,
[CanBeNull] IVsHierarchy hierarchy,
[CanBeNull] FileSystemPath inputFilePath
)
{
if (components == null)
{
return(Disposable.Empty);
}
object oldHierarchy = components.Hierarchy;
string oldInputFileName = components.InputFile;
return(Disposable.CreateBracket(
() => {
components.Hierarchy = hierarchy;
components.InputFile = inputFilePath.IsNullOrEmpty() ? null : inputFilePath.FullPath;
},
() => {
components.Hierarchy = oldHierarchy;
components.InputFile = oldInputFileName;
},
false
));
}
/// <summary>
/// Called when the associated data file changed: added/removed assemblies or includes.
/// </summary>
/// <param name="dataDiff">The difference between the old and new data.</param>
private void OnDataFileChanged([NotNull] T4FileDataDiff dataDiff)
{
_shellLocks.AssertWriteAccessAllowed();
bool hasFileChanges = ResolveMacros(dataDiff.AddedMacros);
bool hasChanges = hasFileChanges;
ITextTemplatingComponents components = _t4Environment.Components.CanBeNull;
using (components.With(TryGetVsHierarchy(), _projectFile.Location)) {
// removes the assembly references from the old assembly directives
foreach (string removedAssembly in dataDiff.RemovedAssemblies)
{
string assembly = removedAssembly;
if (components != null)
{
assembly = components.Host.ResolveAssemblyReference(assembly);
}
IAssemblyCookie cookie;
if (!_assemblyReferences.TryGetValue(assembly, out cookie))
{
continue;
}
_assemblyReferences.Remove(assembly);
hasChanges = true;
cookie.Dispose();
}
// adds assembly references from the new assembly directives
foreach (string addedAssembly in dataDiff.AddedAssemblies)
{
string assembly = addedAssembly;
if (components != null)
{
assembly = components.Host.ResolveAssemblyReference(assembly);
}
if (assembly == null)
{
continue;
}
if (_assemblyReferences.ContainsKey(assembly))
{
continue;
}
IAssemblyCookie cookie = TryAddReference(assembly);
if (cookie != null)
{
hasChanges = true;
}
}
}
if (!hasChanges)
{
return;
}
// tells the world the module has changed
var changeBuilder = new PsiModuleChangeBuilder();
changeBuilder.AddModuleChange(this, PsiModuleChange.ChangeType.Modified);
if (hasFileChanges)
{
GetPsiServices().MarkAsDirty(SourceFile);
}
_shellLocks.ExecuteOrQueue("T4PsiModuleChange",
() => _changeManager.ExecuteAfterChange(
() => _shellLocks.ExecuteWithWriteLock(
() => _changeManager.OnProviderChanged(this, changeBuilder.Result, SimpleTaskExecutor.Instance))
)
);
}
