#773: Can't override vtables of a PMC from PIR
-----------------------+----------------------------------------------------
Reporter: coke | Type: bug
Status: reopened | Priority: blocker
Milestone: | Component: core
Version: 1.2.0 | Severity: medium
Resolution: | Keywords:
Lang: tcl | Patch:
Platform: |
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Changes (by coke):
* status: closed => reopened
* resolution: wontfix =>
Comment:
If you define the (dynamic) PMC, how can you override the class? The
following example, cribbed from Object's "name":
{{{
VTABLE INTVAL get_bool() {
PMC * const _class = VTABLE_get_class(interp, SELF);
STRING * const get_bool = CONST_STRING(interp, "get_bool");
/* Get the vtable override for 'get_bool', run that instead. */
PMC * const method = Parrot_oo_find_vtable_override(interp,
_class, get_bool);
if (!PMC_IS_NULL(method))
return (INTVAL)Parrot_run_meth_fromc_args(interp, method,
SELF, get_bool, "");
else
return -9999; // This should never happen.
}
}}}
Compiles, but dies at runtime (OS X) with:
{{{
dyld: lazy symbol binding failed: Symbol not found:
_Parrot_oo_find_vtable_override
Referenced from: dynext/tcl_group.bundle
}}}
Looks like that method needs to be marked PARROT_EXPORT for this to work.
I'll test it when I fix 'make install' on my OS X box.
--
Ticket URL: <https://trac.parrot.org/parrot/ticket/773#comment:7>
Parrot <https://trac.parrot.org/parrot/>
Parrot Development
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