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patch 8.2.0704: Vim9: memory leak in disassemble test

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Problem:    Vim9: memory leak in disassemble test.
Solution:   Decrement refcount when creating funccal.
This commit is contained in:
Bram Moolenaar
2020-05-06 22:18:17 +02:00
parent b68b346e6d
commit f821ddaa0c
2 changed files with 29 additions and 1 deletions
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28
src/vim9execute.c
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@@ -270,7 +270,7 @@ handle_closure_in_use(ectx_T *ectx, int free_arguments)
int refcount = tv->vval.v_partial->pt_refcount;
int i;
// A Reference in a local variables doesn't count, its get
// A Reference in a local variables doesn't count, it gets
// unreferenced on return.
for (i = 0; i < dfunc->df_varcount; ++i)
{
@@ -323,6 +323,32 @@ handle_closure_in_use(ectx_T *ectx, int free_arguments)
for (idx = 0; idx < dfunc->df_varcount; ++idx)
{
tv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE + idx);
// Do not copy a partial created for a local function.
// TODO: this won't work if the closure actually uses it. But when
// keeping it it gets complicated: it will create a reference cycle
// inside the partial, thus needs special handling for garbage
// collection.
if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL)
{
int i;
typval_T *ctv;
for (i = 0; i < dfunc->df_closure_count; ++i)
{
ctv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE
+ dfunc->df_varcount + i);
if (tv->vval.v_partial == ctv->vval.v_partial)
break;
}
if (i < dfunc->df_closure_count)
{
(stack + argcount + STACK_FRAME_SIZE + idx)->v_type =
VAR_UNKNOWN;
continue;
}
}
*(stack + argcount + STACK_FRAME_SIZE + idx) = *tv;
tv->v_type = VAR_UNKNOWN;
}