protected override Arguments CreateSetterArguments (ResolveContext rc, Expression rhs)
{
//
// Indexer has arguments which complicates things as the setter and getter
// are called in two steps when unary mutator is used. We have to make a
// copy of all variable arguments to not duplicate any side effect.
//
// ++d[++arg, Foo ()]
//
if (!can_be_mutator)
return base.CreateSetterArguments (rc, rhs);
var setter_args = new Arguments (Arguments.Count + 1);
for (int i = 0; i < Arguments.Count; ++i) {
var expr = Arguments[i].Expr;
if (expr is Constant || expr is VariableReference || expr is This) {
setter_args.Add (Arguments [i]);
continue;
}
LocalVariable temp = LocalVariable.CreateCompilerGenerated (expr.Type, rc.CurrentBlock, loc);
expr = new SimpleAssign (temp.CreateReferenceExpression (rc, expr.Location), expr).Resolve (rc);
Arguments[i].Expr = temp.CreateReferenceExpression (rc, expr.Location).Resolve (rc);
setter_args.Add (Arguments [i].Clone (expr));
}
setter_args.Add (new Argument (rhs));
return setter_args;
}