private expression DesugarRecursiveParameters(expression expression, pattern_node pattern)
{
List <pattern_parameter> parameters = pattern.parameters;
expression conjunction = new is_pattern_expr(expression, pattern, pattern.source_context);
for (int i = 0; i < parameters.Count; i++)
{
if (parameters[i] is recursive_pattern_parameter parameter)
{
//var parameterType = (parameter.pattern as deconstructor_pattern).type;
var newName = NewGeneralName();
pattern_parameter varParameter = null;
if (pattern is deconstructor_pattern)
{
varParameter = new var_deconstructor_parameter(newName, null, false);
}
else if (pattern is collection_pattern)
{
varParameter = new collection_pattern_var_parameter(newName, null);
}
else if (pattern is tuple_pattern)
{
varParameter = new tuple_pattern_var_parameter(newName, null);
}
parameters[i] = varParameter;
varParameter.Parent = parameters[i];
conjunction = bin_expr.LogicalAnd(conjunction, DesugarRecursiveParameters(newName, parameter.pattern));
}
}
return(conjunction);
}
public virtual void visit(collection_pattern_var_parameter _collection_pattern_var_parameter)
{
DefaultVisit(_collection_pattern_var_parameter);
}