X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Flassert.cpp;h=c690dbcee03a213a2a10c771dc5ea1c945f50d7b;hb=41a8994da902031a743373c1c57d028b7c900797;hp=b384007f6087027beed63d91915a597e85be068f;hpb=8a9d765739dc757eb7296b74bc8c912fa75f0000;p=lyx.git

diff --git a/src/support/lassert.cpp b/src/support/lassert.cpp
index b384007f60..c690dbcee0 100644
--- a/src/support/lassert.cpp
+++ b/src/support/lassert.cpp
@@ -4,23 +4,134 @@
  * Licence details can be found in the file COPYING.
  *
  * \author André Pönitz
+ * \author Peter Kümmel
  *
  * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
+#include <lassert.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>
 
+#include <QString>
+
+#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;
+
+
+void doAssertWithCallstack(bool value)
+{
+	if (!value) {
+		printCallStack();
+		BOOST_ASSERT(false);
+	}
+}
+
+
+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);
+	doAssertWithCallstack(false);
+}
+
+
+docstring formatHelper(docstring const & msg,
+	char const * expr, char const * file, long line)
+{
+	docstring const d = _("Assertion %1$s violated in\nfile: %2$s, line: %3$s");
+	LYXERR0("ASSERTION " << expr << " VIOLATED IN " << file << ":" << line);
+
+	return bformat(d, from_ascii(expr), from_ascii(file),
+		convert<docstring>(line)) + '\n' + msg;
+}
+
+
+void doWarnIf(char const * expr, char const * file, long line)
+{
+	docstring const d = _("It should be safe to continue, but you\nmay wish to save your work and restart LyX.");
+	// comment this out if not needed
+	doAssertWithCallstack(false);
+	throw ExceptionMessage(WarningException, _("Warning!"),
+		formatHelper(d, expr, file, line));
+}
+
+
+void doBufErr(char const * expr, char const * file, long line)
+{
+	docstring const d = _("There has been an error with this document.\nLyX will attempt to close it safely.");
+	// comment this out if not needed
+	doAssertWithCallstack(false);
+	throw ExceptionMessage(BufferException, _("Buffer Error!"),
+		formatHelper(d, expr, file, line));
+}
+
+
+void doAppErr(char const * expr, char const * file, long line)
+{
+	docstring const d = _("LyX has encountered an application error\nand will now shut down.");
+	// comment this out if not needed
+	doAssertWithCallstack(false);
+	throw ExceptionMessage(ErrorException, _("Fatal Exception!"),
+		formatHelper(d, expr, file, line));
+}
+
+
+docstring printCallStack()
+{
+#ifndef LYX_CALLSTACK_PRINTING
+	return docstring();
+#else
+	const int depth = 200;
+
+	// get void*'s for all entries on the stack
+	void* array[depth];
+	size_t size = backtrace(array, depth);
+
+	char** messages = backtrace_symbols(array, size);
+
+	docstring bt;
+	for (size_t i = 1; i < size && messages != NULL; i++) {
+		const std::string orig(messages[i]);
+		char* mangled = 0;
+		for (char *p = messages[i]; *p; ++p) {
+			if (*p == '(') {
+				*p = 0;
+				mangled = p + 1;
+			} else if (*p == '+') {
+				*p = 0;
+				break;
+			}
+		}
+		int status = 0;
+		const char* demangled = abi::__cxa_demangle(mangled, 0, 0, &status);
+		const QByteArray line = QString("(%1) %2: %3\n").arg(i, 3).arg(messages[i])
+								.arg(demangled ? demangled : orig.c_str()).toLocal8Bit();
+		free((void*)demangled);
+
+		fprintf(stderr, "%s", line.constData());
+		bt += from_local8bit(line.constData());
+	}
+		return bt;
+#endif
 }
 
 } // namespace lyx