Ticket #776 (closed bug: worksforme)
segfault in Parrot_str_equal...
|Reported by:||coke||Owned by:||coke|
Tcl has a TclString PMC - I'm working on renaming that to TclStringPMC and having a TclString PIR class that subclasses the PMC, until I can move everything from the PMC back to the PIR object, then I'll remove the PMC.
Things now mostly work, but I'm getting a segfault in Parrot_str_equal, called from "$I0 = isa foo, 'Undef'". The Foo in question is a TclString (which is now a sublcass of TclStringPMC which in turn is a subclass of String)
the backtrace starts with:
#0 0xb7c16b91 in Parrot_str_equal (interp=0x804f040, s1=0xb6a1bca8, s2=0x1) at src/string/api.c:1556 #1 0xb7e6d661 in Parrot_Class_isa_pmc (interp=0x804f040, pmc=0xb6d6ded8, lookup=0x81c9a78) at ./src/pmc/class.pmc:1306 #2 0xb7e6d119 in Parrot_Class_isa (interp=0x804f040, pmc=0xb6d6ded8, classname=0x812fdc8) at ./src/pmc/class.pmc:1356 #3 0xb7c29c20 in Parrot_isa_i_p_sc (cur_opcode=0xb6e0581c, interp=0x804f040) at src/ops/object.ops:225
at src/string/api.c:1556, s1 is "Undef". s2 is (const STRING *) 0x1
going up a level to ./src/pmc/class.pmc:1306, the invalid class name is "self_name"; the value of is_proxy here is 0, which seems wrong to me. (as a subclass of a PMC, shouldn't it be a proxy?)