public override void WriteKeyword(Role role, string keyword)
{
TextLocation start = locationProvider.Location;
AlTokenNode t = null;
if (role is TokenRole)
{
t = new AlTokenNode(start, (TokenRole)role);
}
else if (role == EntityDeclaration.ModifierRole)
{
t = new AlModifierToken(start, AlModifierToken.GetModifierValue(keyword));
}
else if (keyword == "self")
{
ThisReferenceExpression node = nodes.Peek().LastOrDefault() as ThisReferenceExpression;
if (node != null)
{
node.Location = start;
}
}
else if (keyword == "me")
{
BaseReferenceExpression node = nodes.Peek().LastOrDefault() as BaseReferenceExpression;
if (node != null)
{
node.Location = start;
}
}
if (t != null)
{
currentList.Add(t);
}
base.WriteKeyword(role, keyword);
}
internal static void SetModifiers(AstNode node, Modifiers newValue)
{
Modifiers oldValue = GetModifiers(node);
AstNode insertionPos = node.GetChildrenByRole(AttributeRole).LastOrDefault();
foreach (Modifiers m in AlModifierToken.AllModifiers)
{
if ((m & newValue) != 0)
{
if ((m & oldValue) == 0)
{
// Modifier was added
var newToken = new AlModifierToken(TextLocation.Empty, m);
node.InsertChildAfter(insertionPos, newToken, ModifierRole);
insertionPos = newToken;
}
else
{
// Modifier already exists
insertionPos = node.GetChildrenByRole(ModifierRole).First(t => t.Modifier == m);
}
}
else
{
if ((m & oldValue) != 0)
{
// Modifier was removed
node.GetChildrenByRole(ModifierRole).First(t => t.Modifier == m).Remove();
}
}
}
}
void PrintModifiers(Modifiers modifiers, TokenWriter writer)
{
foreach (var m in AlModifierToken.AllModifiers)
{
if ((modifiers & m) == m)
{
writer.WriteKeyword(EntityDeclaration.ModifierRole, AlModifierToken.GetModifierName(m));
writer.Space();
}
}
}
protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
{
AlModifierToken o = other as AlModifierToken;
return(o != null && this.modifier == o.modifier);
}
