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patch 9.0.1198: abstract class not supported yet

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Problem:    Abstract class not supported yet.
Solution:   Implement abstract class and add tests.
This commit is contained in:
Bram Moolenaar
2023-01-14 13:12:06 +00:00
parent 034c350207
commit 24a8d06d7f
4 changed files with 58 additions and 12 deletions
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31
src/vim9class.c
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@@ -204,17 +204,6 @@ ex_class(exarg_T *eap)
{
int is_class = eap->cmdidx == CMD_class; // FALSE for :interface
if (!current_script_is_vim9()
|| (cmdmod.cmod_flags & CMOD_LEGACY)
|| !getline_equal(eap->getline, eap->cookie, getsourceline))
{
if (is_class)
emsg(_(e_class_can_only_be_defined_in_vim9_script));
else
emsg(_(e_interface_can_only_be_defined_in_vim9_script));
return;
}
char_u *arg = eap->arg;
int is_abstract = eap->cmdidx == CMD_abstract;
if (is_abstract)
@@ -225,6 +214,18 @@ ex_class(exarg_T *eap)
return;
}
arg = skipwhite(arg + 5);
is_class = TRUE;
}
if (!current_script_is_vim9()
|| (cmdmod.cmod_flags & CMOD_LEGACY)
|| !getline_equal(eap->getline, eap->cookie, getsourceline))
{
if (is_class)
emsg(_(e_class_can_only_be_defined_in_vim9_script));
else
emsg(_(e_interface_can_only_be_defined_in_vim9_script));
return;
}
if (!ASCII_ISUPPER(*arg))
@@ -493,6 +494,12 @@ early_ret:
{
char_u *name = uf->uf_name;
int is_new = STRNCMP(name, "new", 3) == 0;
if (is_new && is_abstract)
{
emsg(_(e_cannot_define_new_function_in_abstract_class));
success = FALSE;
break;
}
garray_T *fgap = has_static || is_new
? &classfunctions : &objmethods;
// Check the name isn't used already.
@@ -826,7 +833,7 @@ early_ret:
have_new = TRUE;
break;
}
if (is_class && !have_new)
if (is_class && !is_abstract && !have_new)
{
// No new() method was defined, add the default constructor.
garray_T fga;