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[debug] Print function in return_trace()

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This commit is contained in:
Behdad Esfahbod 2018-11-24 22:32:17 -05:00
parent 748198a671
commit 1c2302bbf1
1 changed files with 11 additions and 5 deletions
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16
src/hb-debug.hh
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@ -293,14 +293,16 @@ struct hb_auto_trace_t
if (plevel) --*plevel;
}
inline ret_t ret (ret_t v, unsigned int line = 0)
inline ret_t ret (ret_t v,
const char *func = "",
unsigned int line = 0)
{
if (unlikely (returned)) {
fprintf (stderr, "OUCH, double calls to return_trace(). This is a bug, please report.\n");
return v;
}
_hb_debug_msg<max_level> (what, obj, nullptr, true, plevel ? *plevel : 1, -1,
_hb_debug_msg<max_level> (what, obj, func, true, plevel ? *plevel : 1, -1,
"return %s (line %d)",
hb_printer_t<ret_t>().print (v), line);
if (plevel) --*plevel;
@ -325,17 +327,21 @@ struct hb_auto_trace_t<0, ret_t>
const char *message,
...) HB_PRINTF_FUNC(6, 7) {}
inline ret_t ret (ret_t v, unsigned int line HB_UNUSED = 0) { return v; }
inline ret_t ret (ret_t v,
const char *func HB_UNUSED = 0,
unsigned int line HB_UNUSED = 0) { return v; }
};
/* For disabled tracing; optimize out everything.
* https://github.com/harfbuzz/harfbuzz/pull/605 */
template <typename ret_t>
struct hb_no_trace_t {
inline ret_t ret (ret_t v, unsigned int line HB_UNUSED = 0) { return v; }
inline ret_t ret (ret_t v,
const char *func HB_UNUSED = "",
unsigned int line HB_UNUSED = 0) { return v; }
};
#define return_trace(RET) return trace.ret (RET, __LINE__)
#define return_trace(RET) return trace.ret (RET, HB_FUNC, __LINE__)
/*