/// <summary>
/// Adds a new attribute to this directive.
/// </summary>
/// <param name="attribute">The attribute to add.</param>
/// <returns>A new instance of <see cref="IT4DirectiveAttribute"/>, representing <paramref name="attribute"/> in the T4 file.</returns>
public IT4DirectiveAttribute AddAttribute(IT4DirectiveAttribute attribute)
{
if (attribute == null)
{
throw new ArgumentNullException("attribute");
}
using (WriteLockCookie.Create(IsPhysical())) {
ITreeNode lastNode = LastChild;
Assertion.AssertNotNull(lastNode, "lastNode != null");
ITreeNode anchor = IsEndNode(lastNode) ? lastNode.PrevSibling : lastNode;
Assertion.AssertNotNull(anchor, "anchor != null");
bool addSpaceAfter = anchor.GetTokenType() == T4TokenNodeTypes.Space;
bool addSpaceBefore = !addSpaceAfter;
if (addSpaceBefore)
{
anchor = ModificationUtil.AddChildAfter(anchor, T4TokenNodeTypes.Space.CreateLeafElement());
}
IT4DirectiveAttribute result = ModificationUtil.AddChildAfter(anchor, attribute);
if (addSpaceAfter)
{
ModificationUtil.AddChildAfter(result, T4TokenNodeTypes.Space.CreateLeafElement());
}
return(result);
}
}
/// <summary>
/// Adds a new attribute to this directive.
/// </summary>
/// <param name="attribute">The attribute to add.</param>
/// <returns>A new instance of <see cref="IT4DirectiveAttribute"/>, representing <paramref name="attribute"/> in the T4 file.</returns>
public IT4DirectiveAttribute AddAttribute(IT4DirectiveAttribute attribute)
{
if (attribute == null)
throw new ArgumentNullException("attribute");
using (WriteLockCookie.Create(IsPhysical())) {
ITreeNode lastNode = LastChild;
Assertion.AssertNotNull(lastNode, "lastNode != null");
ITreeNode anchor = IsEndNode(lastNode) ? lastNode.PrevSibling : lastNode;
Assertion.AssertNotNull(anchor, "anchor != null");
bool addSpaceAfter = anchor.GetTokenType() == T4TokenNodeTypes.Space;
bool addSpaceBefore = !addSpaceAfter;
if (addSpaceBefore)
anchor = ModificationUtil.AddChildAfter(anchor, T4TokenNodeTypes.Space.CreateLeafElement());
IT4DirectiveAttribute result = ModificationUtil.AddChildAfter(anchor, attribute);
if (addSpaceAfter)
ModificationUtil.AddChildAfter(result, T4TokenNodeTypes.Space.CreateLeafElement());
return result;
}
}
public static IT4Token GetAttributeValueToken([CanBeNull] this IT4Directive directive, [CanBeNull] string attributeName)
{
if (directive == null || String.IsNullOrEmpty(attributeName))
{
return(null);
}
IT4DirectiveAttribute attribute = directive.GetAttribute(attributeName);
if (attribute == null)
{
return(null);
}
return(attribute.GetValueToken());
}
