Add additional LASSERT-type macros for dealing with various kinds

[lyx.git] / src / support / lassert.cpp

diff --git a/src/support/lassert.cpp b/src/support/lassert.cpp
index 64f92a61ac4b74ffa4e3093dbb0fb71b94b4aed8..048e572871837f1b787aea69a315008c8328e653 100644 (file)
--- a/src/support/lassert.cpp
+++ b/src/support/lassert.cpp
@@ -1,26 +1,127 @@
 /**
- * \file assert.cpp
+ * \file lassert.cpp
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
- * \author André Pönitz
+ * \author André Pönitz
+ * \author Peter Kümmel
  *
  * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
+#include "support/convert.h"
 #include "support/debug.h"
+#include "support/docstring.h"
+#include "support/ExceptionMessage.h"
+#include "support/gettext.h"
+#include "support/lstrings.h"
 
 #include <boost/assert.hpp>
 
+
+//#define LYX_CALLSTACK_PRINTING
+// must be linked with -rdynamic
+#ifdef LYX_CALLSTACK_PRINTING
+#include <cstdio>
+#include <cstdlib>
+#include <execinfo.h>
+#include <cxxabi.h>
+#endif
+
+
 namespace lyx {
 
-void doAssert(char const * expr,  char const * file, long line)
+using namespace std;
+using namespace support;
+
+// TODO Should we try to print the call stack in the course of these?
+
+void doAssert(char const * expr, char const * file, long line)
+{
+       LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
+       // comment this out if not needed
+       BOOST_ASSERT(false);
+}
+
+
+docstring formatHelper(docstring const & msg,
+       char const * expr, char const * file, long line)
+{
+       static const docstring d = 
+               from_ascii(N_("Assertion %1$s violated in\nfile: %2$s, line: %3$s"));
+       
+       return bformat(d, from_ascii(expr), from_ascii(file), 
+               convert<docstring>(line)) + '\n' + msg;
+}
+
+
+void doWarnIf(char const * expr, docstring const & msg, char const * file, long line)
+{
+       LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
+       // comment this out if not needed
+       BOOST_ASSERT(false);
+       throw ExceptionMessage(WarningException, _("Warning!"), 
+               formatHelper(msg, expr, file, line));
+}
+
+
+void doBufErr(char const * expr, docstring const & msg, char const * file, long line)
 {
        LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
        // comment this out if not needed
        BOOST_ASSERT(false);
+       throw ExceptionMessage(BufferException, _("Buffer Error!"),
+               formatHelper(msg, expr, file, line));
+}
+
+
+void doAppErr(char const * expr, docstring const & msg, char const * file, long line)
+{
+       LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
+       // comment this out if not needed
+       BOOST_ASSERT(false);
+       throw ExceptionMessage(ErrorException, _("Fatal Exception!"),
+               formatHelper(msg, expr, file, line));
+}
+
+
+//TODO Return as string, so call stack could be used in dialogs.
+void printCallStack()
+{
+#ifdef LYX_CALLSTACK_PRINTING
+       const int depth = 50;
+       
+       // get void*'s for all entries on the stack
+       void* array[depth];
+       size_t size = backtrace(array, depth);
+       
+       char** messages = backtrace_symbols(array, size);
+       
+       for (size_t i = 0; i < size && messages != NULL; i++) {
+               std::string orig(messages[i]);
+               // extract mangled: bin/lyx2.0(_ZN3lyx7support7packageEv+0x32) [0x8a2e02b]
+               char* mangled = 0;
+               for (char *p = messages[i]; *p; ++p) {
+                       if (*p == '(') {
+                               *p = 0;
+                               mangled = p + 1;
+                       } else if (*p == '+') {
+                               *p = 0;
+                               break;
+                       }
+               }
+               int err = 0;
+               char* demangled = abi::__cxa_demangle(mangled, 0, 0, &err);
+               if (err == 0) {
+                       fprintf(stderr, "[bt]: (%d) %s %s\n", i, messages[i], demangled);
+                       free((void*)demangled);
+               } else {
+                       fprintf(stderr, "[bt]: (%d) %s\n", i, orig.c_str());
+               }               
+       }
+#endif
 }
 
 } // namespace lyx