#199: fix handling of vtable methods
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Reporter: whiteknight | Owner: whiteknight
Type: todo | Status: new
Priority: normal | Milestone: 0.9.1
Component: imcc | Version:
Severity: medium | Keywords:
Lang: | Patch:
Platform: all |
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Comment(by whiteknight):
Okay, here's the scoop:
1) I found how to fix this issue. The relevant code is in
compilers/imcc/pcc.c:390. We need to add the condition "||
(unit->is_vtable_method)" to that if statement, and this resolves the
problem.
2) However, the problem above breaks t/pmc/parrotobject.t, tests involving
"invoke". The "invoke" override is broken internally and does not allow
for a "self" parameter. When IMCC tries to unshift a "self" off the list
of arguments, it comes up one argument short.
We have a few tests for overriding "invoke", but none of them test the
desired behavior (having access to "self" and therefore being able to do
anything interesting besides printing out simple messages). However, when
I fix behavior elsewhere these examples rightfully break.
--
Ticket URL: <https://trac.parrot.org/parrot/ticket/199#comment:1>
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