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glr2.cc: fix memory leak

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* data/skeletons/glr2.cc (glr_stack_item::setState): Free the previous
state before installing the new one.
This commit is contained in:
Akim Demaille
2021-01-09 17:57:32 +01:00
parent 3bcc090758
commit fbdff2bc38
1 changed files with 8 additions and 8 deletions
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16
data/skeletons/glr2.cc
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@@ -1374,10 +1374,10 @@ public:
~glr_stack_item ()
{]b4_parse_assert_if([[
check_ ();]])[
if (is_state())
getState().~glr_state();
if (is_state ())
getState ().~glr_state ();
else
getOption().~semantic_option();
getOption ().~semantic_option ();
}
void setState (const glr_state &state)
@@ -1386,12 +1386,12 @@ public:
state.check_ ();]])[
if (this != state.asItem ())
{
is_state_ = true;
// FIXME: What about the previous content? Shouldn't it be
// freed? It might be useful to have an explicit "void" state
// when this item is in unused state (in the list of free
// items), when parse.assert is set.
if (is_state_)
getState ().~glr_state ();
else
getOption ().~semantic_option ();
new (&raw_) glr_state (state);
is_state_ = true;
}
}