internal override Snapshot CreateSnapshot()
{
var node = LookupNode();
var parentElement = !this.IsRootNamespace
? (AbstractCodeElement)this.Parent
: null;
var nodesBuilder = ArrayBuilder <SyntaxNode> .GetInstance();
nodesBuilder.AddRange(CodeModelService.GetOptionNodes(node));
nodesBuilder.AddRange(CodeModelService.GetImportNodes(node));
nodesBuilder.AddRange(CodeModelService.GetAttributeNodes(node));
nodesBuilder.AddRange(CodeModelService.GetLogicalSupportedMemberNodes(node));
return(new NodeSnapshot(this.State, _fileCodeModel, node, parentElement,
nodesBuilder.ToImmutableAndFree()));
}
protected override bool TryGetItemByIndex(int index, out EnvDTE.CodeElement element)
{
var node = LookupNode();
var parentElement = !this.IsRootNamespace
? (AbstractCodeElement)this.Parent
: null;
int currentIndex = 0;
// Option statements
var optionNodes = CodeModelService.GetOptionNodes(node);
var optionNodeCount = optionNodes.Count();
if (index < currentIndex + optionNodeCount)
{
var child = optionNodes.ElementAt(index - currentIndex);
element = CreateCodeOptionsStatement(child, node);
return(true);
}
currentIndex += optionNodeCount;
// Imports/using statements
var importNodes = CodeModelService.GetImportNodes(node);
var importNodeCount = importNodes.Count();
if (index < currentIndex + importNodeCount)
{
var child = importNodes.ElementAt(index - currentIndex);
element = CreateCodeImport(child, parentElement);
return(true);
}
currentIndex += importNodeCount;
// Attributes
var attributeNodes = CodeModelService.GetAttributeNodes(node);
var attributeNodeCount = attributeNodes.Count();
if (index < currentIndex + attributeNodeCount)
{
var child = attributeNodes.ElementAt(index - currentIndex);
element = CreateCodeAttribute(child, node, parentElement);
return(true);
}
currentIndex += attributeNodeCount;
// Members
var memberNodes = CodeModelService.GetLogicalSupportedMemberNodes(node);
var memberNodeCount = memberNodes.Count();
if (index < currentIndex + memberNodeCount)
{
var child = memberNodes.ElementAt(index - currentIndex);
element = FileCodeModel.GetOrCreateCodeElement <EnvDTE.CodeElement>(child);
return(true);
}
element = null;
return(false);
}
protected override bool TryGetItemByName(string name, out EnvDTE.CodeElement element)
{
var node = LookupNode();
var parentElement = !IsRootNamespace ? (AbstractCodeElement)Parent : null;
// Option statements
foreach (var child in CodeModelService.GetOptionNodes(node))
{
CodeModelService.GetOptionNameAndOrdinal(
node,
child,
out var childName,
out var ordinal
);
if (childName == name)
{
element = CodeOptionsStatement.Create(State, FileCodeModel, childName, ordinal);
return(true);
}
}
// Imports/using statements
foreach (var child in CodeModelService.GetImportNodes(node))
{
var childName = CodeModelService.GetImportNamespaceOrType(child);
if (childName == name)
{
element = CodeImport.Create(State, FileCodeModel, parentElement, childName);
return(true);
}
}
// Attributes
foreach (var child in CodeModelService.GetAttributeNodes(node))
{
CodeModelService.GetAttributeNameAndOrdinal(
node,
child,
out var childName,
out var ordinal
);
if (childName == name)
{
element = (EnvDTE.CodeElement)CodeAttribute.Create(
State,
FileCodeModel,
parentElement,
childName,
ordinal
);
return(true);
}
}
// Members
foreach (var child in CodeModelService.GetLogicalSupportedMemberNodes(node))
{
var childName = CodeModelService.GetName(child);
if (childName == name)
{
element = FileCodeModel.GetOrCreateCodeElement <EnvDTE.CodeElement>(child);
return(true);
}
}
element = null;
return(false);
}