Internal: Disable debug logs macro if IMGUI_DISABLE_DEBUG_TOOLS is defined. (#5901)

+ needed to rework clipper code to avoid "The 'then' statement is equivalent to the 'else' statement." PVS Studio warning.

docs/CHANGELOG.txt

@@ -39,8 +39,10 @@ Breaking changes:
 
 Other changes:
 
- - Text: Fixed layouting of wrapped-text block when the last source line is above the
+- Text: fixed layouting of wrapped-text block when the last source line is above the
   clipping region. Regression added in 1.89. (#5720, #5919)
+- Misc: fixed parameters to IMGUI_DEBUG_LOG() not being dead-stripped when building
+  with IMGUI_DISABLE_DEBUG_TOOLS is used. (#5901) [@Teselka]
 
 
 -----------------------------------------------------------------------

imgui.cpp

@@ -2871,11 +2871,14 @@ bool ImGuiListClipper::Step()
     if (need_items_height && ItemsHeight > 0.0f)
         IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): computed ItemsHeight: %.2f.\n", ItemsHeight);
     if (ret)
+    {
         IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): display %d to %d.\n", DisplayStart, DisplayEnd);
+    }
     else
+    {
         IMGUI_DEBUG_LOG_CLIPPER("Clipper: Step(): End.\n");
-    if (!ret)
         End();
+    }
     return ret;
 }
 

imgui_internal.h

@@ -211,7 +211,11 @@ namespace ImStb
 #endif
 
 // Debug Logging for ShowDebugLogWindow(). This is designed for relatively rare events so please don't spam.
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
 #define IMGUI_DEBUG_LOG(...)            ImGui::DebugLog(__VA_ARGS__)
+#else
+#define IMGUI_DEBUG_LOG(...)            ((void)0)
+#endif
 #define IMGUI_DEBUG_LOG_ACTIVEID(...)   do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventActiveId) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
 #define IMGUI_DEBUG_LOG_FOCUS(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventFocus)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
 #define IMGUI_DEBUG_LOG_POPUP(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventPopup)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)