private void ParseFixedBuffer(StructNode st, FixedBufferNode node)
{
if (st == null)
{
ReportError("fixed buffer authorized only in structure declaration.");
}
if (!node.IsUnsafe)
{
ReportError("fixed buffer authorized only in unsafe context.");
}
if ((node.Modifiers & Modifier.Static) != Modifier.Empty)
{
ReportError("fixed buffer can not be declared as static.");
}
if ( node.Type is TypePointerNode )
{
ReportError("fixed buffer can not be pointer.");
}
else
{
StringCollection strColl = new StringCollection();
string type_str = ((TypeNode)node.Type).Identifier.QualifiedIdentifier.ToLower();
strColl.AddRange(new string[] { "sbyte", "byte", "short", "ushort", "int", "uint", "long", "ulong", "char", "float", "double", "bool" });
if (!strColl.Contains(type_str))
{
ReportError("fixed buffer element type must be of type sbyte, byte, short, ushort, int, uint, long, ulong, char, float, double or bool.");
}
}
AssertAndAdvance(TokenID.LBracket);
ConstantExpression expr = new ConstantExpression(curtok);
expr.Value = ParseExpression(TokenID.RBracket);
node.FixedBufferConstants.Add( expr );
AssertAndAdvance(TokenID.RBracket);
}
private ConstantExpression ParseConstExpr()
{
ConstantExpression node = new ConstantExpression(curtok);
node.Value = ParseExpression();
return node;
}
public virtual object VisitConstantExpressions(ConstantExpression constantExpression, object data)
{
stackMap.Push(constantExpression);
constantExpression.Value.AcceptVisitor(this, data);
stackMap.Pop();
return null;
}