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patch 9.0.1045: in a class object members cannot be initialized

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Problem:    In a class object members cannot be initialized.
Solution:   Support initializing object members. Make "dissassemble" work on
            an object method.
This commit is contained in:
Bram Moolenaar
2022-12-10 18:42:12 +00:00
parent 6c87bbb4e4
commit 7ce7daf6cd
13 changed files with 280 additions and 74 deletions
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69
src/vim9class.c
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@@ -147,12 +147,30 @@ ex_class(exarg_T *eap)
if (type == NULL)
break;
char_u *expr_start = skipwhite(type_arg);
if (*expr_start == '=' && (!VIM_ISWHITE(expr_start[-1])
|| !VIM_ISWHITE(expr_start[1])))
{
semsg(_(e_white_space_required_before_and_after_str_at_str),
"=", type_arg);
break;
}
expr_start = skipwhite(expr_start + 1);
char_u *expr_end = expr_start;
evalarg_T evalarg;
init_evalarg(&evalarg);
skip_expr(&expr_end, &evalarg);
clear_evalarg(&evalarg, NULL);
if (ga_grow(&objmembers, 1) == FAIL)
break;
objmember_T *m = ((objmember_T *)objmembers.ga_data)
+ objmembers.ga_len;
m->om_name = vim_strnsave(varname, varname_end - varname);
m->om_type = type;
if (expr_end > expr_start)
m->om_init = vim_strnsave(expr_start, expr_end - expr_start);
++objmembers.ga_len;
}
@@ -190,6 +208,9 @@ ex_class(exarg_T *eap)
// TODO: how about errors?
if (uf != NULL && ga_grow(&objmethods, 1) == OK)
{
if (STRNCMP(uf->uf_name, "new", 3) == 0)
uf->uf_flags |= FC_NEW;
((ufunc_T **)objmethods.ga_data)[objmethods.ga_len] = uf;
++objmethods.ga_len;
}
@@ -333,6 +354,7 @@ cleanup:
{
objmember_T *m = ((objmember_T *)objmembers.ga_data) + i;
vim_free(m->om_name);
vim_free(m->om_init);
}
ga_clear(&objmembers);
@@ -519,6 +541,52 @@ class_object_index(
return FAIL;
}
/*
* If "arg" points to a class or object method, return it.
* Otherwise return NULL.
*/
ufunc_T *
find_class_func(char_u **arg)
{
char_u *name = *arg;
char_u *name_end = find_name_end(name, NULL, NULL, FNE_CHECK_START);
if (name_end == name || *name_end != '.')
return NULL;
size_t len = name_end - name;
typval_T tv;
tv.v_type = VAR_UNKNOWN;
if (eval_variable(name, len, 0, &tv, NULL, EVAL_VAR_NOAUTOLOAD) == FAIL)
return NULL;
if (tv.v_type != VAR_CLASS && tv.v_type != VAR_OBJECT)
{
clear_tv(&tv);
return NULL;
}
class_T *cl = tv.v_type == VAR_CLASS ? tv.vval.v_class
: tv.vval.v_object->obj_class;
if (cl == NULL)
return NULL;
char_u *fname = name_end + 1;
char_u *fname_end = find_name_end(fname, NULL, NULL, FNE_CHECK_START);
if (fname_end == fname)
return NULL;
len = fname_end - fname;
for (int i = 0; i < cl->class_obj_method_count; ++i)
{
ufunc_T *fp = cl->class_obj_methods[i];
// Use a separate pointer to avoid that ASAN complains about
// uf_name[] only being 4 characters.
char_u *ufname = (char_u *)fp->uf_name;
if (STRNCMP(fname, ufname, len) == 0 && ufname[len] == NUL)
return fp;
}
return NULL;
}
/*
* Make a copy of an object.
*/
@@ -585,6 +653,7 @@ class_unref(class_T *cl)
{
objmember_T *m = &cl->class_obj_members[i];
vim_free(m->om_name);
vim_free(m->om_init);
}
vim_free(cl->class_obj_members);