patch 8.2.2330: Vim9: crash when using :trow in a not executed block
Problem: Vim9: crash when using :trow in a not executed block.
Solution: Don't generate the instruction when skipping. (closes #7659)
diff --git a/src/vim9compile.c b/src/vim9compile.c
index bcbc57d..0064bd2 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -474,8 +474,10 @@
isn_T *isn;
isntype_T isntype = ISN_2STRING;
garray_T *stack = &cctx->ctx_type_stack;
- type_T **type = ((type_T **)stack->ga_data) + stack->ga_len + offset;
+ type_T **type;
+ RETURN_OK_IF_SKIP(cctx);
+ type = ((type_T **)stack->ga_data) + stack->ga_len + offset;
switch ((*type)->tt_type)
{
// nothing to be done
@@ -7461,6 +7463,8 @@
if (compile_expr0(&p, cctx) == FAIL)
return NULL;
+ if (cctx->ctx_skip == SKIP_YES)
+ return p;
if (may_generate_2STRING(-1, cctx) == FAIL)
return NULL;
if (generate_instr_drop(cctx, ISN_THROW, 1) == NULL)