char*
CFCPerlConstructor_xsub_def(CFCPerlConstructor *self) {
const char *c_name = self->sub.c_name;
CFCParamList *param_list = self->sub.param_list;
const char *name_list = CFCParamList_name_list(param_list);
CFCVariable **arg_vars = CFCParamList_get_variables(param_list);
const char *func_sym = CFCFunction_full_func_sym(self->init_func);
char *allot_params = CFCPerlSub_build_allot_params((CFCPerlSub*)self);
CFCVariable *self_var = arg_vars[0];
CFCType *self_type = CFCVariable_get_type(self_var);
const char *self_type_str = CFCType_to_c(self_type);
// Compensate for swallowed refcounts.
char *refcount_mods = CFCUtil_strdup("");
for (size_t i = 0; arg_vars[i] != NULL; i++) {
CFCVariable *var = arg_vars[i];
CFCType *type = CFCVariable_get_type(var);
if (CFCType_is_object(type) && CFCType_decremented(type)) {
const char *name = CFCVariable_micro_sym(var);
refcount_mods = CFCUtil_cat(refcount_mods, "\n CFISH_INCREF(",
name, ");", NULL);
}
}
const char pattern[] =
"XS(%s);\n"
"XS(%s) {\n"
" dXSARGS;\n"
" CFISH_UNUSED_VAR(cv);\n"
" if (items < 1) { CFISH_THROW(CFISH_ERR, \"Usage: %%s(class_name, ...)\", GvNAME(CvGV(cv))); }\n"
" SP -= items;\n"
"\n"
" %s\n"
// Create "self" last, so that earlier exceptions while fetching
// params don't trigger a bad invocation of DESTROY.
" %s self = (%s)XSBind_new_blank_obj(ST(0));%s\n"
"\n"
" %s retval = %s(%s);\n"
" if (retval) {\n"
" ST(0) = (SV*)CFISH_Obj_To_Host((cfish_Obj*)retval);\n"
" CFISH_Obj_Dec_RefCount((cfish_Obj*)retval);\n"
" }\n"
" else {\n"
" ST(0) = newSV(0);\n"
" }\n"
" sv_2mortal(ST(0));\n"
" XSRETURN(1);\n"
"}\n\n";
char *xsub_def
= CFCUtil_sprintf(pattern, c_name, c_name, allot_params, self_type_str,
self_type_str, refcount_mods, self_type_str,
func_sym, name_list);
FREEMEM(refcount_mods);
FREEMEM(allot_params);
return xsub_def;
}
char*
CFCPyMethod_constructor_wrapper(CFCFunction *init_func, CFCClass *invoker) {
CFCParamList *param_list = CFCFunction_get_param_list(init_func);
const char *self_type
= CFCType_to_c(CFCFunction_get_return_type(init_func));
char *func_sym = CFCFunction_full_func_sym(init_func, invoker);
char *decs = S_gen_decs(param_list, 1);
char *increfs = S_gen_arg_increfs(param_list, 1);
char *decrefs = S_gen_decrefs(param_list, 1);
const char *class_var = CFCClass_full_class_var(invoker);
const char *struct_sym = CFCClass_full_struct_sym(invoker);
char *error = NULL;
char *arg_parsing = S_gen_arg_parsing(param_list, 1, &error);
if (error) {
CFCUtil_die("%s in constructor for %s", error,
CFCClass_get_name(invoker));
}
if (!arg_parsing) {
CFCUtil_die("Unexpected arg parsing error for %s",
CFCClass_get_name(invoker));
}
char *first_arg = CFCUtil_sprintf("(%s)CFISH_Class_Make_Obj(%s)",
self_type, class_var);
char *arg_list = S_gen_arg_list(param_list, first_arg);
char pattern[] =
"static PyObject*\n"
"S_%s_PY_NEW(PyTypeObject *type, PyObject *args, PyObject *kwargs) {\n"
"%s" // decs
"%s" // arg_parsing
"%s" // increfs
" %s self = NULL;\n"
" CFBIND_TRY(self = %s(%s));\n"
"%s" // decrefs
" if (CFBind_migrate_cferr()) {\n"
" return NULL;\n"
" }\n"
" return (PyObject*)self;\n"
"}\n"
;
char *wrapper = CFCUtil_sprintf(pattern, struct_sym, decs,
arg_parsing, increfs, self_type,
func_sym, arg_list, decrefs);
FREEMEM(arg_list);
FREEMEM(first_arg);
FREEMEM(func_sym);
FREEMEM(decrefs);
FREEMEM(increfs);
FREEMEM(decs);
FREEMEM(arg_parsing);
return wrapper;
}
char*
CFCGoClass_gen_ctors(CFCGoClass *self) {
CFCFunction *ctor_func = CFCClass_function(self->client, "new");
if (self->suppress_ctor
|| !ctor_func
|| !CFCFunction_can_be_bound(ctor_func)
) {
return CFCUtil_strdup("");
}
CFCParcel *parcel = CFCClass_get_parcel(self->client);
CFCParamList *param_list = CFCFunction_get_param_list(ctor_func);
CFCType *ret_type = CFCFunction_get_return_type(ctor_func);
const char *struct_sym = CFCClass_get_struct_sym(self->client);
char *name = CFCUtil_sprintf("New%s", struct_sym);
char *cfunc = CFCFunction_full_func_sym(ctor_func, self->client);
char *cfargs = CFCGoFunc_ctor_cfargs(parcel, param_list);
char *first_line
= CFCGoFunc_ctor_start(parcel, name, param_list, ret_type);
char *ret_statement
= CFCGoFunc_return_statement(parcel, ret_type, "retvalCF");
char pattern[] =
"%s"
"\tretvalCF := C.%s(%s)\n"
"%s"
"}\n"
;
char *content = CFCUtil_sprintf(pattern, first_line, cfunc,
cfargs, ret_statement);
FREEMEM(ret_statement);
FREEMEM(cfargs);
FREEMEM(cfunc);
FREEMEM(first_line);
FREEMEM(name);
return content;
}
const char*
CFCMethod_implementing_func_sym(CFCMethod *self) {
return CFCFunction_full_func_sym((CFCFunction*)self);
}