// nih-plug: plugins, but rewritten in Rust
// Copyright (C) 2022 Robbert van der Helm
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/// Early exit out of a VST3 function when one of the passed pointers is null
macro_rules! check_null_ptr {
    ($ptr:expr $(, $ptrs:expr)* $(, )?) => {
        check_null_ptr_msg!("Null pointer passed to function", $ptr $(, $ptrs)*)
    };
}

/// The same as [check_null_ptr!], but with a custom message.
macro_rules! check_null_ptr_msg {
    ($msg:expr, $ptr:expr $(, $ptrs:expr)* $(, )?) => {
        if $ptr.is_null() $(|| $ptrs.is_null())* {
            nih_debug_assert_failure!($msg);
            return kInvalidArgument;
        }
    };
}