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patch 8.2.0529: Vim9: function argument with default not checked

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Problem:    Vim9: function argument with default not checked.
Solution:   Check type of argument with default value.
This commit is contained in:
Bram Moolenaar
2020-04-07 22:45:00 +02:00
parent 0b76b42d0a
commit 49cf7cc8d2
4 changed files with 28 additions and 5 deletions
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26
src/vim9compile.c
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@@ -5548,6 +5548,7 @@ compile_def_function(ufunc_T *ufunc, int set_return_type)
if (ufunc->uf_def_args.ga_len > 0)
{
int count = ufunc->uf_def_args.ga_len;
int first_def_arg = ufunc->uf_args.ga_len - count;
int i;
char_u *arg;
int off = STACK_FRAME_SIZE + (ufunc->uf_va_name != NULL ? 1 : 0);
@@ -5561,11 +5562,30 @@ compile_def_function(ufunc_T *ufunc, int set_return_type)
goto erret;
for (i = 0; i < count; ++i)
{
garray_T *stack = &cctx.ctx_type_stack;
type_T *val_type;
int arg_idx = first_def_arg + i;
ufunc->uf_def_arg_idx[i] = instr->ga_len;
arg = ((char_u **)(ufunc->uf_def_args.ga_data))[i];
if (compile_expr1(&arg, &cctx) == FAIL
|| generate_STORE(&cctx, ISN_STORE,
i - count - off, NULL) == FAIL)
if (compile_expr1(&arg, &cctx) == FAIL)
goto erret;
// If no type specified use the type of the default value.
// Otherwise check that the default value type matches the
// specified type.
val_type = ((type_T **)stack->ga_data)[stack->ga_len - 1];
if (ufunc->uf_arg_types[arg_idx] == &t_unknown)
ufunc->uf_arg_types[arg_idx] = val_type;
else if (check_type(ufunc->uf_arg_types[i], val_type, FALSE)
== FAIL)
{
arg_type_mismatch(ufunc->uf_arg_types[arg_idx], val_type,
arg_idx + 1);
goto erret;
}
if (generate_STORE(&cctx, ISN_STORE, i - count - off, NULL) == FAIL)
goto erret;
}