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[debug] Print function in return_trace()

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; 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)) { if (unlikely (returned)) {
fprintf (stderr, "OUCH, double calls to return_trace(). This is a bug, please report.\n"); fprintf (stderr, "OUCH, double calls to return_trace(). This is a bug, please report.\n");
return v; 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)", "return %s (line %d)",
hb_printer_t<ret_t>().print (v), line); hb_printer_t<ret_t>().print (v), line);
if (plevel) --*plevel; if (plevel) --*plevel;
@ -325,17 +327,21 @@ struct hb_auto_trace_t<0, ret_t>
const char *message, const char *message,
...) HB_PRINTF_FUNC(6, 7) {} ...) 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. /* For disabled tracing; optimize out everything.
* https://github.com/harfbuzz/harfbuzz/pull/605 */ * https://github.com/harfbuzz/harfbuzz/pull/605 */
template <typename ret_t> template <typename ret_t>
struct hb_no_trace_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__)
/* /*