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patch 9.0.0724: closure in compiled function gets same variable in block

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Problem:    Closure in compiled function gets same variable in block.
Solution:   At the end of a block to not always reset the variable count.
            (issue #11094)
This commit is contained in:
Bram Moolenaar
2022-10-11 20:04:09 +01:00
parent a9a364872e
commit a275f2cdcc
4 changed files with 49 additions and 18 deletions
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32
src/vim9cmds.c
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@@ -57,22 +57,20 @@ current_instr_idx(cctx_T *cctx)
}
/*
* Remove local variables above "new_top".
* Do this by clearing the name. If "keep" is TRUE do not reset the length, a
* closure may still need location of the variable.
*/
static void
unwind_locals(cctx_T *cctx, int new_top)
unwind_locals(cctx_T *cctx, int new_top, int keep)
{
if (cctx->ctx_locals.ga_len > new_top)
{
int idx;
lvar_T *lvar;
for (idx = new_top; idx < cctx->ctx_locals.ga_len; ++idx)
for (int idx = new_top; idx < cctx->ctx_locals.ga_len; ++idx)
{
lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;
vim_free(lvar->lv_name);
lvar_T *lvar = ((lvar_T *)cctx->ctx_locals.ga_data) + idx;
VIM_CLEAR(lvar->lv_name);
}
}
cctx->ctx_locals.ga_len = new_top;
if (!keep)
cctx->ctx_locals.ga_len = new_top;
}
/*
@@ -81,7 +79,7 @@ unwind_locals(cctx_T *cctx, int new_top)
void
free_locals(cctx_T *cctx)
{
unwind_locals(cctx, 0);
unwind_locals(cctx, 0, FALSE);
ga_clear(&cctx->ctx_locals);
}
@@ -525,7 +523,7 @@ compile_elseif(char_u *arg, cctx_T *cctx)
emsg(_(e_elseif_without_if));
return NULL;
}
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
scope->se_u.se_if.is_had_return = FALSE;
@@ -672,7 +670,7 @@ compile_else(char_u *arg, cctx_T *cctx)
emsg(_(e_else_without_if));
return NULL;
}
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
scope->se_u.se_if.is_had_return = FALSE;
scope->se_u.se_if.is_seen_else = TRUE;
@@ -744,7 +742,7 @@ compile_endif(char_u *arg, cctx_T *cctx)
return NULL;
}
ifscope = &scope->se_u.se_if;
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, TRUE);
if (!cctx->ctx_had_return)
ifscope->is_had_return = FALSE;
@@ -1122,7 +1120,7 @@ compile_endfor(char_u *arg, cctx_T *cctx)
if (compile_loop_end(&forscope->fs_loop_info, cctx) == FAIL)
return NULL;
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, FALSE);
// At end of ":for" scope jump back to the FOR instruction.
generate_JUMP(cctx, JUMP_ALWAYS, forscope->fs_top_label);
@@ -1249,7 +1247,7 @@ compile_endwhile(char_u *arg, cctx_T *cctx)
if (compile_loop_end(&whilescope->ws_loop_info, cctx) == FAIL)
return NULL;
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, FALSE);
#ifdef FEAT_PROFILE
// count the endwhile before jumping
@@ -1471,7 +1469,7 @@ compile_endblock(cctx_T *cctx)
scope_T *scope = cctx->ctx_scope;
cctx->ctx_scope = scope->se_outer;
unwind_locals(cctx, scope->se_local_count);
unwind_locals(cctx, scope->se_local_count, TRUE);
vim_free(scope);
}