From 97cdfd33ddaab01970b07c077f6de80d2bbea157 Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Wed, 26 Jan 2022 11:30:48 +0100
Subject: [PATCH] Add more debug assertion macros

---
 nih_plug/src/debug.rs | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/nih_plug/src/debug.rs b/nih_plug/src/debug.rs
index 5d3ccf80..f9488c1f 100644
--- a/nih_plug/src/debug.rs
+++ b/nih_plug/src/debug.rs
@@ -26,8 +26,8 @@ macro_rules! nih_log {
     );
 }
 
-/// A `debug_assert!()` analogue that prints the error instead with line number information instead
-/// of panicking.
+/// A `debug_assert!()` analogue that prints the error with line number information instead of
+/// panicking.
 ///
 /// TODO: Detect if we're running under a debugger, and trigger a break if we are
 macro_rules! nih_debug_assert {
@@ -42,3 +42,33 @@ macro_rules! nih_debug_assert {
         }
     );
 }
+
+/// A `debug_assert_eq!()` analogue that prints the error with line number information instead of
+/// panicking.
+macro_rules! nih_debug_assert_eq {
+    ($left:expr, $right:expr) => (
+        if cfg!(debug_assertions) && $left != $right {
+            nih_log!(concat!("Debug assertion failed: ", stringify!($left), " != ", stringify!($right)));
+        }
+    );
+    (left:expr, $right:expr, $format:expr $(, $arg:tt)*) => (
+        if cfg!(debug_assertions) && $left != $right  {
+            nih_log!(concat!("Debug assertion failed: ", stringify!($left), " != ", stringify!($right), ", ", $format) $(, $arg)*);
+        }
+    );
+}
+
+/// A `debug_assert_neq!()` analogue that prints the error with line number information instead of
+/// panicking.
+macro_rules! nih_debug_assert_neq {
+    ($left:expr, $right:expr) => (
+        if cfg!(debug_assertions) && $left == $right {
+            nih_log!(concat!("Debug assertion failed: ", stringify!($left), " == ", stringify!($right)));
+        }
+    );
+    (left:expr, $right:expr, $format:expr $(, $arg:tt)*) => (
+        if cfg!(debug_assertions) && $left == $right  {
+            nih_log!(concat!("Debug assertion failed: ", stringify!($left), " == ", stringify!($right), ", ", $format) $(, $arg)*);
+        }
+    );
+}