public static ExpressionNode Find(this ExpressionNode node, int offset)
{
return(node.ContainsOffset(offset) ? FindInternal(node, offset) : null);
}
static ExpressionNode FindInternal(this ExpressionNode node, int offset)
{
switch (node)
{
case Expression expr:
//TODO: binary search?
foreach (var c in expr.Nodes)
{
if (c.ContainsOffset(offset))
{
return(c.FindInternal(offset));
}
}
break;
case ExpressionItem item:
if (item.HasTransform && item.Transform.ContainsOffset(offset))
{
return(item.Transform.FindInternal(offset));
}
break;
case ExpressionProperty prop:
if (prop.Expression != null && prop.Expression.ContainsOffset(offset))
{
return(prop.Expression.FindInternal(offset));
}
break;
case IncompleteExpressionError err:
if (err.IncompleteNode != null && err.IncompleteNode.ContainsOffset(offset))
{
return(err.IncompleteNode.FindInternal(offset));
}
break;
case ExpressionPropertyFunctionInvocation prop:
if (prop.Target != null && prop.Target.ContainsOffset(offset))
{
return(prop.Target.FindInternal(offset));
}
if (prop.Arguments != null && prop.Arguments.ContainsOffset(offset))
{
return(prop.Arguments.FindInternal(offset));
}
break;
case ExpressionArgumentList argumentList:
if (argumentList.Arguments != null)
{
//TODO: binary search?
foreach (var c in argumentList.Arguments)
{
if (c.ContainsOffset(offset))
{
return(c.FindInternal(offset));
}
}
}
break;
}
return(node);
}
public static IEnumerable <ExpressionNode> WithAllDescendants(this ExpressionNode node)
{
yield return(node);
switch (node)
{
case Expression expr:
foreach (var c in expr.Nodes)
{
foreach (var n in c.WithAllDescendants())
{
yield return(n);
}
}
break;
case ExpressionItem item:
if (item.HasTransform)
{
foreach (var n in item.Transform.WithAllDescendants())
{
yield return(n);
}
}
break;
case ExpressionProperty property:
if (property.Expression != null)
{
foreach (var n in property.Expression.WithAllDescendants())
{
yield return(n);
}
}
break;
case ExpressionPropertyFunctionInvocation invocation:
if (invocation.Target != null)
{
foreach (var n in invocation.Target.WithAllDescendants())
{
yield return(n);
}
}
if (invocation.Arguments != null)
{
foreach (var n in invocation.Arguments.WithAllDescendants())
{
yield return(n);
}
}
break;
case ExpressionArgumentList argumentList:
if (argumentList.Arguments != null)
{
foreach (var a in argumentList.Arguments)
{
foreach (var n in a.WithAllDescendants())
{
yield return(n);
}
}
}
break;
}
}
public static bool ContainsOffset(this ExpressionNode node, int offset)
{
return(node.Offset <= offset && node.End >= offset);
}
public IncompleteExpressionError(int offset, bool wasEOF, ExpressionErrorKind kind, ExpressionNode incompleteNode)
: base(offset, wasEOF? 0 : 1, kind)
{
IncompleteNode = incompleteNode;
}
internal void SetParent(ExpressionNode parent) => Parent = parent;
public ExpressionItem(int offset, int length, string name, ExpressionNode transform) : base(offset, length)
{
Transform = transform;
transform?.SetParent(this);
Name = name;
}
public ExpressionProperty(int offset, int length, ExpressionNode expression) : base(offset, length)
{
Expression = expression;
}
protected override void VisitValueExpression(
XElement element, XAttribute attribute,
MSBuildLanguageElement resolvedElement, MSBuildLanguageAttribute resolvedAttribute,
ValueInfo info, MSBuildValueKind kind, ExpressionNode node)
{
switch (node.Find(offset))
{
case ExpressionItem ei:
rr.ReferenceKind = MSBuildReferenceKind.Item;
rr.ReferenceOffset = ei.NameOffset;
rr.ReferenceLength = ei.Name.Length;
rr.Reference = ei.Name;
break;
case ExpressionPropertyName propName:
rr.ReferenceKind = MSBuildReferenceKind.Property;
rr.ReferenceOffset = propName.Offset;
rr.Reference = propName.Name;
rr.ReferenceLength = propName.Length;
break;
case ExpressionMetadata em:
if (em.ItemName == null || offset >= em.MetadataNameOffset)
{
rr.ReferenceKind = MSBuildReferenceKind.Metadata;
rr.ReferenceOffset = em.MetadataNameOffset;
rr.Reference = (em.GetItemName(), em.MetadataName);
rr.ReferenceLength = em.MetadataName.Length;
}
else
{
rr.ReferenceKind = MSBuildReferenceKind.Item;
rr.ReferenceOffset = em.ItemNameOffset;
rr.Reference = em.ItemName;
rr.ReferenceLength = em.ItemName.Length;
}
break;
case ExpressionText lit:
kind = kind.GetScalarType();
if (lit.IsPure)
{
VisitPureLiteral(info, kind, lit);
if (kind == MSBuildValueKind.TaskOutputParameterName)
{
rr.ReferenceKind = MSBuildReferenceKind.TaskParameter;
rr.ReferenceOffset = lit.Offset;
rr.ReferenceLength = lit.Value.Length;
rr.Reference = (element.ParentElement().Name.Name, lit.Value);
break;
}
}
switch (kind)
{
case MSBuildValueKind.File:
case MSBuildValueKind.FileOrFolder:
case MSBuildValueKind.ProjectFile:
case MSBuildValueKind.TaskAssemblyFile:
var pathNode = lit.Parent as Expression ?? (ExpressionNode)lit;
var path = MSBuildNavigation.GetPathFromNode(pathNode, (MSBuildRootDocument)Document);
if (path != null)
{
rr.ReferenceKind = MSBuildReferenceKind.FileOrFolder;
rr.ReferenceOffset = path.Offset;
rr.ReferenceLength = path.Length;
rr.Reference = path.Paths;
}
break;
}
break;
}
}
protected override void VisitValueExpression(
XElement element, XAttribute attribute,
MSBuildLanguageElement resolvedElement, MSBuildLanguageAttribute resolvedAttribute,
ValueInfo info, MSBuildValueKind kind, ExpressionNode node)
{
switch (node.Find(offset))
{
case ExpressionItemName ei:
rr.ReferenceKind = MSBuildReferenceKind.Item;
rr.ReferenceOffset = ei.Offset;
rr.ReferenceLength = ei.Name.Length;
rr.Reference = ei.Name;
break;
case ExpressionPropertyName propName:
rr.ReferenceKind = MSBuildReferenceKind.Property;
rr.ReferenceOffset = propName.Offset;
rr.Reference = propName.Name;
rr.ReferenceLength = propName.Length;
break;
case ExpressionMetadata em:
if (em.ItemName == null || offset >= em.MetadataNameOffset)
{
rr.ReferenceKind = MSBuildReferenceKind.Metadata;
rr.ReferenceOffset = em.MetadataNameOffset;
rr.Reference = (em.GetItemName(), em.MetadataName);
rr.ReferenceLength = em.MetadataName.Length;
}
else
{
rr.ReferenceKind = MSBuildReferenceKind.Item;
rr.ReferenceOffset = em.ItemNameOffset;
rr.Reference = em.ItemName;
rr.ReferenceLength = em.ItemName.Length;
}
break;
case ExpressionFunctionName name:
rr.ReferenceOffset = name.Offset;
rr.ReferenceLength = name.Name.Length;
if (name.Parent is ExpressionItemNode item)
{
rr.ReferenceKind = MSBuildReferenceKind.ItemFunction;
rr.Reference = name.Name;
}
else if (name.Parent is ExpressionPropertyFunctionInvocation prop)
{
if (prop.Target is ExpressionClassReference classRef)
{
rr.ReferenceKind = MSBuildReferenceKind.StaticPropertyFunction;
rr.Reference = (classRef.Name, name.Name);
}
else
{
var type = FunctionCompletion.ResolveType(prop.Target);
rr.ReferenceKind = MSBuildReferenceKind.PropertyFunction;
rr.Reference = (type, name.Name);
}
}
break;
case ExpressionClassReference cr:
if (!string.IsNullOrEmpty(cr.Name))
{
if (cr.Parent is ExpressionArgumentList)
{
rr.ReferenceKind = MSBuildReferenceKind.Enum;
}
else if (cr.Parent is ExpressionPropertyFunctionInvocation)
{
rr.ReferenceKind = MSBuildReferenceKind.ClassName;
}
else
{
break;
}
rr.ReferenceOffset = cr.Offset;
rr.Reference = cr.Name;
rr.ReferenceLength = cr.Length;
}
break;
case ExpressionText lit:
kind = kind.GetScalarType();
if (lit.IsPure)
{
VisitPureLiteral(element, info, kind, lit);
if (kind == MSBuildValueKind.TaskOutputParameterName)
{
rr.ReferenceKind = MSBuildReferenceKind.TaskParameter;
rr.ReferenceOffset = lit.Offset;
rr.ReferenceLength = lit.Value.Length;
rr.Reference = (element.ParentElement().Name.Name, lit.Value);
break;
}
}
switch (kind)
{
case MSBuildValueKind.File:
case MSBuildValueKind.FileOrFolder:
case MSBuildValueKind.ProjectFile:
case MSBuildValueKind.TaskAssemblyFile:
var pathNode = lit.Parent as Expression ?? (ExpressionNode)lit;
var path = MSBuildNavigation.GetPathFromNode(pathNode, (MSBuildRootDocument)Document);
if (path != null)
{
rr.ReferenceKind = MSBuildReferenceKind.FileOrFolder;
rr.ReferenceOffset = path.Offset;
rr.ReferenceLength = path.Length;
rr.Reference = path.Paths;
}
break;
}
break;
}
}
protected override void VisitValueExpression(XElement element, XAttribute attribute, MSBuildLanguageElement resolvedElement, MSBuildLanguageAttribute resolvedAttribute, ValueInfo info, MSBuildValueKind kind, ExpressionNode node)
{
switch (kind.GetScalarType())
{
case MSBuildValueKind.TargetName:
foreach (var n in node.WithAllDescendants())
{
if (n is ExpressionText lit && lit.IsPure)
{
Navigations.Add(new MSBuildNavigationResult(
MSBuildReferenceKind.Target, lit.Value, lit.Offset, lit.Length
));
}
}
break;
case MSBuildValueKind.File:
case MSBuildValueKind.FileOrFolder:
case MSBuildValueKind.ProjectFile:
case MSBuildValueKind.TaskAssemblyFile:
case MSBuildValueKind.Unknown:
if (node is ExpressionList list)
{
foreach (var n in list.Nodes)
{
var p = GetPathFromNode(n, (MSBuildRootDocument)Document);
if (p != null)
{
Navigations.Add(p);
}
}
}
var path = GetPathFromNode(node, (MSBuildRootDocument)Document);
if (path != null)
{
Navigations.Add(path);
}
break;
}
}
