From 74c33f637146e63b895c716a8f6db12873eef5fe Mon Sep 17 00:00:00 2001
From: nojhan <nojhan@nojhan.net>
Date: Sat, 29 May 2021 18:25:54 +0200
Subject: [PATCH] add the CLUTCHCODE macro

---
 README.md             | 12 ++++++++++++
 clutchlog/clutchlog.h | 36 +++++++++++++++++++++++++++++++++---
 2 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 9f6c88a..c7268fd 100644
--- a/README.md
+++ b/README.md
@@ -313,6 +313,18 @@ Thus, any call like `ASSERT(error, x > 3);` will be declutchable
 with the same configuration than a call to `CLUTCHLOG`.
 
 
+(De)clutch any code section
+---------------------------
+
+The `CLUTCHCODE` macro allows to wrap any code within the current logger.
+
+For instance:
+```cpp
+CLUTCHCODE(info,
+    std::clog << "We are clutched!\n";
+);
+```
+
 Log level semantics
 ===================
 
diff --git a/clutchlog/clutchlog.h b/clutchlog/clutchlog.h
index bef5257..b0e2ce2 100644
--- a/clutchlog/clutchlog.h
+++ b/clutchlog/clutchlog.h
@@ -116,7 +116,7 @@
 }
 #endif // NDEBUG
 
-//! Call an assert at the given level.
+//! Call any function if the scope matches.
 #ifndef NDEBUG
 #define CLUTCHFUNC( LEVEL, FUNC, ... ) { \
     auto& logger = clutchlog::logger(); \
@@ -126,16 +126,46 @@
     } \
 }
 #else // not Debug build.
-#define CLUTCHFUNC( LEVEL, FUNC, ... ) { do {/*nothing*/} while(false); }
+#define CLUTCHFUNC( LEVEL, FUNC, ... ) { \
+    if(clutchlog::level::LEVEL <= CLUTCHLOG_DEFAULT_DEPTH_BUILT_NODEBUG) { \
+        auto& logger = clutchlog::logger(); \
+        clutchlog::scope_t scope = logger.locate(clutchlog::level::LEVEL, CLUTCHLOC); \
+        if(scope.matches) { \
+            FUNC(__VA_ARGS__); \
+        } \
+    } \
+}
+#endif // NDEBUG
+     
+//! Run any code if the scope matches.
+#ifndef NDEBUG
+#define CLUTCHCODE( LEVEL, CODE ) { \
+    auto& logger = clutchlog::logger(); \
+    clutchlog::scope_t scope = logger.locate(clutchlog::level::LEVEL, CLUTCHLOC); \
+    if(scope.matches) { \
+        CODE \
+    } \
+}
+#else // not Debug build.
+#define CLUTCHCODE( LEVEL, CODE ) { \
+    if(clutchlog::level::LEVEL <= CLUTCHLOG_DEFAULT_DEPTH_BUILT_NODEBUG) { \
+        auto& logger = clutchlog::logger(); \
+        clutchlog::scope_t scope = logger.locate(clutchlog::level::LEVEL, CLUTCHLOC); \
+        if(scope.matches) { \
+            CODE \
+        } \
+    } \
+}
 #endif // NDEBUG
 
 /** @} */
 
 #else // not WITH_CLUTCHLOG
-// Disabled macros can still be used in Release builds.
+// Disabled macros can still be called in Release builds.
 #define CLUTCHLOG(  LEVEL, WHAT ) { do {/*nothing*/} while(false); }
 #define CLUTCHDUMP( LEVEL, CONTAINER, FILENAME ) { do {/*nothing*/} while(false); }
 #define CLUTCHFUNC( LEVEL, FUNC, ... ) { do {/*nothing*/} while(false); }
+#define CLUTCHCODE( LEVEL, CODE ) { do {/*nothing*/} while(false); }
 #endif // WITH_CLUTCHLOG
 
 /**********************************************************************