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unix/modjni: Factor out new_jobject(), jvalue2py() functions.

This commit is contained in:
Paul Sokolovsky 2015-09-13 01:25:04 +03:00
parent 7731edf2f5
commit 26a9b4d48e
1 changed files with 39 additions and 23 deletions
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62
unix/modjni.c
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@ -154,6 +154,14 @@ STATIC const mp_obj_type_t jobject_type = {
// .locals_dict = (mp_obj_t)&jobject_locals_dict,
};
STATIC mp_obj_t new_jobject(jobject jo) {
mp_obj_jobject_t *o = m_new_obj(mp_obj_jobject_t);
o->base.type = &jobject_type;
o->obj = jo;
return o;
}
// jmethod
STATIC void jmethod_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
@ -199,6 +207,34 @@ STATIC bool py2jvalue(const char **jtypesig, mp_obj_t arg, jvalue *out) {
return true;
}
// jvalue is known to be union of jobject and friends. And yet from C's
// perspective, it's aggregate object which may require passing via stack
// instead of registers. Work that around by passing jobject and typecasting
// it.
#define MATCH(s, static) (!strncmp(s, static, sizeof(static) - 1))
STATIC mp_obj_t jvalue2py(const char *jtypesig, jobject arg) {
mp_obj_t ret;
if (MATCH(jtypesig, "void")) {
return mp_const_none;
} else if (MATCH(jtypesig, "int")) {
return mp_obj_new_int((mp_int_t)arg);
} else if (MATCH(jtypesig, "java.lang.String")) {
ret_string:;
const char *s = JJ(GetStringUTFChars, arg, NULL);
ret = mp_obj_new_str(s, strlen(s), false);
JJ(ReleaseStringUTFChars, arg, s);
return ret;
} else if (MATCH(jtypesig, "java.lang.Object")) {
if (JJ(IsInstanceOf, arg, String_class)) {
goto ret_string;
} else {
return new_jobject(arg);
}
}
return MP_OBJ_NULL;
}
STATIC mp_obj_t call_method(jobject obj, const char *name, jarray methods, bool is_constr, mp_uint_t n_args, const mp_obj_t *args) {
jvalue jargs[n_args];
// printf("methods=%p\n", methods);
@ -244,31 +280,11 @@ STATIC mp_obj_t call_method(jobject obj, const char *name, jarray methods, bool
jobject res;
if (is_constr) {
res = JJ(NewObjectA, obj, method_id, jargs);
mp_obj_jobject_t *o;
ret_object:
o = m_new_obj(mp_obj_jobject_t);
o->base.type = &jobject_type;
o->obj = res;
return o;
JJ(ReleaseStringUTFChars, name_o, decl);
return new_jobject(res);
} else {
res = JJ(CallObjectMethodA, obj, method_id, jargs);
mp_obj_t ret = MP_OBJ_NULL;
if (strncmp(ret_type, "void", 4) == 0) {
ret = mp_const_none;
} else if (strncmp(ret_type, "int", sizeof("int") - 1) == 0) {
ret = mp_obj_new_int((mp_int_t)res);
} else if (strncmp(ret_type, "java.lang.String", sizeof("java.lang.String") - 1) == 0) {
ret_string:;
const char *s = JJ(GetStringUTFChars, res, NULL);
ret = mp_obj_new_str(s, strlen(s), false);
JJ(ReleaseStringUTFChars, res, s);
} else if (strncmp(ret_type, "java.lang.Object", sizeof("java.lang.Object") - 1) == 0) {
if (JJ(IsInstanceOf, res, String_class)) {
goto ret_string;
} else {
goto ret_object;
}
}
mp_obj_t ret = jvalue2py(ret_type, res);
JJ(ReleaseStringUTFChars, name_o, decl);
if (ret != MP_OBJ_NULL) {
return ret;