1 files changed, 80 insertions, 0 deletions
diff --git a/tools/common/debug.cpp b/tools/common/debug.cpp
new file mode 100644
index 00000000..a3fb9956
--- /dev/null
+++ b/tools/common/debug.cpp
@@ -0,0 +1,80 @@
+/*
+ * MiniCargo - mrustc's minimal clone of cargo
+ * - By John Hodge (Mutabah/thePowersGang)
+ *
+ * debug.cpp
+ * - Debugging helpers
+ */
+#if defined(__MINGW32__)
+# define DISABLE_MULTITHREAD    // Mingw32 doesn't have c++11 threads
+#endif
+#include <set>
+#include <iostream>
+#include "debug.h"
+#include <mutex>
+
+static int giIndentLevel = 0;
+static const char* gsDebugPhase = "";
+static ::std::set<::std::string> gmDisabledDebug;
+#ifndef DISABLE_MULTITHREAD
+static ::std::mutex gDebugLock;
+#endif
+
+void Debug_SetPhase(const char* phase_name)
+{
+    gsDebugPhase = phase_name;
+}
+bool Debug_IsEnabled()
+{
+    if( gmDisabledDebug.find(gsDebugPhase) != gmDisabledDebug.end() )
+        return false;
+    return true;
+}
+void Debug_DisablePhase(const char* phase_name)
+{
+    gmDisabledDebug.insert( ::std::string(phase_name) );
+}
+void Debug_Print(::std::function<void(::std::ostream& os)> cb)
+{
+    if( !Debug_IsEnabled() )
+        return ;
+#ifndef DISABLE_MULTITHREAD
+    ::std::unique_lock<::std::mutex>    _lh { gDebugLock };
+#endif
+
+    ::std::cout << gsDebugPhase << "- ";
+    for(auto i = giIndentLevel; i --; )
+        ::std::cout << " ";
+    cb(::std::cout);
+    ::std::cout << ::std::endl;
+}
+void Debug_EnterScope(const char* name, dbg_cb_t cb)
+{
+    if( !Debug_IsEnabled() )
+        return ;
+#ifndef DISABLE_MULTITHREAD
+    ::std::unique_lock<::std::mutex>    _lh { gDebugLock };
+#endif
+
+    ::std::cout << gsDebugPhase << "- ";
+    for(auto i = giIndentLevel; i --; )
+        ::std::cout << " ";
+    ::std::cout << ">>> " << name << "(";
+    cb(::std::cout);
+    ::std::cout << ")" << ::std::endl;
+    giIndentLevel ++;
+}
+void Debug_LeaveScope(const char* name, dbg_cb_t cb)
+{
+    if( !Debug_IsEnabled() )
+        return ;
+#ifndef DISABLE_MULTITHREAD
+    ::std::unique_lock<::std::mutex>    _lh { gDebugLock };
+#endif
+
+    ::std::cout << gsDebugPhase << "- ";
+    giIndentLevel --;
+    for(auto i = giIndentLevel; i --; )
+        ::std::cout << " ";
+    ::std::cout << "<<< " << name << ::std::endl;
+}