/// <summary>
/// Emit instantiation and initialization of NamingContext. Leaves reference to new NamingContext on the top of evaluation stack.
/// </summary>
/// <param name="il"></param>
/// <param name="currentNamespace">Namespace to be passed as current namespace to the new instance of <see cref="NamingContext"/>.</param>
/// <param name="aliases">Aliases to be passed to the new instance of <see cref="NamingContext"/>.</param>
internal static void EmitNewNamingContext(Emit.ILEmitter/*!*/il, QualifiedName? currentNamespace, Dictionary<string, QualifiedName> aliases)
{
if (!NeedsNamingContext(currentNamespace, aliases))
{
il.Emit(OpCodes.Ldnull);
return;
}
//
// new NamingContext( currentNamespace.NamespacePhpName, aliases.Count )
if (currentNamespace.HasValue && currentNamespace.Value.Namespaces.Length > 0)
il.Emit(OpCodes.Ldstr, currentNamespace.Value.NamespacePhpName);
else
il.Emit(OpCodes.Ldnull);
il.LdcI4((aliases != null) ? aliases.Count : 0);
il.Emit(OpCodes.Newobj, Constructors.NamingContext);
// tmp.AddAlias( aliases[i].Key, aliases[i].Value.NamespacePhpName
if (aliases != null)
{
foreach (var alias in aliases)
{
il.Emit(OpCodes.Dup); // the NamingContext instance
il.Emit(OpCodes.Ldstr, alias.Key); // alias
il.Emit(OpCodes.Ldstr, alias.Value.ToString()); // qualifiedName
il.Emit(OpCodes.Call, Methods.NamingContext.AddAlias); // AddAlias( <alias>, <qualifiedName> )
}
}
}
