From f3914eb16d28ad9eb20fe5133d9aa83658bcc27f Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Wed, 20 Jan 2016 12:16:21 +0100 Subject: co_lnotab supports negative line number delta Issue #26107: The format of the co_lnotab attribute of code objects changes to support negative line number delta. Changes: * assemble_lnotab(): if line number delta is less than -128 or greater than 127, emit multiple (offset_delta, lineno_delta) in co_lnotab * update functions decoding co_lnotab to use signed 8-bit integers - dis.findlinestarts() - PyCode_Addr2Line() - _PyCode_CheckLineNumber() - frame_setlineno() * update lnotab_notes.txt * increase importlib MAGIC_NUMBER to 3361 * document the change in What's New in Python 3.6 * cleanup also PyCode_Optimize() to use better variable names --- Objects/frameobject.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Objects/frameobject.c') diff --git a/Objects/frameobject.c b/Objects/frameobject.c index 425a9ee0f1..da2d2ed215 100644 --- a/Objects/frameobject.c +++ b/Objects/frameobject.c @@ -137,7 +137,7 @@ frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno) new_lasti = -1; for (offset = 0; offset < lnotab_len; offset += 2) { addr += lnotab[offset]; - line += lnotab[offset+1]; + line += (signed char)lnotab[offset+1]; if (line >= new_lineno) { new_lasti = addr; new_lineno = line; -- cgit v1.2.1