patch 8.2.1244: Vim9: in lambda index assumes a list
Problem: Vim9: in lambda index assumes a list.
Solution: Use the value type to decide about list or dict. (closes #6479)
diff --git a/src/vim9compile.c b/src/vim9compile.c
index ed40076..4b569f9 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -3748,6 +3748,7 @@
{
garray_T *stack = &cctx->ctx_type_stack;
type_T **typep;
+ vartype_T vtype;
// list index: list[123]
// dict member: dict[key]
@@ -3773,22 +3774,38 @@
}
*arg = *arg + 1;
+ // We can index a list and a dict. If we don't know the type
+ // we can use the index value type.
+ // TODO: If we don't know use an instruction to figure it out at
+ // runtime.
typep = ((type_T **)stack->ga_data) + stack->ga_len - 2;
- if ((*typep)->tt_type == VAR_LIST || (*typep) == &t_any)
+ vtype = (*typep)->tt_type;
+ if (*typep == &t_any)
+ {
+ type_T *valtype = ((type_T **)stack->ga_data)
+ [stack->ga_len - 1];
+ if (valtype == &t_string)
+ vtype = VAR_DICT;
+ }
+ if (vtype == VAR_DICT)
+ {
+ if ((*typep)->tt_type == VAR_DICT)
+ *typep = (*typep)->tt_member;
+ else if (need_type(*typep, &t_dict_any, -2, cctx, FALSE)
+ == FAIL)
+ return FAIL;
+ if (may_generate_2STRING(-1, cctx) == FAIL)
+ return FAIL;
+ if (generate_instr_drop(cctx, ISN_MEMBER, 1) == FAIL)
+ return FAIL;
+ }
+ else if (vtype == VAR_LIST || *typep == &t_any)
{
if ((*typep)->tt_type == VAR_LIST)
*typep = (*typep)->tt_member;
if (generate_instr_drop(cctx, ISN_INDEX, 1) == FAIL)
return FAIL;
}
- else if ((*typep)->tt_type == VAR_DICT)
- {
- *typep = (*typep)->tt_member;
- if (may_generate_2STRING(-1, cctx) == FAIL)
- return FAIL;
- if (generate_instr_drop(cctx, ISN_MEMBER, 1) == FAIL)
- return FAIL;
- }
else
{
emsg(_(e_listdictblobreq));
@@ -5386,7 +5403,7 @@
}
stacktype = stack->ga_len == 0 ? &t_void
- : ((type_T **)stack->ga_data)[stack->ga_len - 1];
+ : ((type_T **)stack->ga_data)[stack->ga_len - 1];
if (lvar != NULL && (is_decl || !has_type))
{
if (new_local && !has_type)