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unix/modjni: Support for subscripting of Java lists (r/o so far).

This commit is contained in:
Paul Sokolovsky 2015-09-21 12:02:22 -07:00
parent 6196aa45ed
commit b2d880d749
1 changed files with 35 additions and 0 deletions
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35
unix/modjni.c
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@ -48,6 +48,10 @@ static jmethodID Class_getConstructors_mid;
static jmethodID Method_getName_mid;
static jmethodID Method_toString_mid;
static jclass List_class;
static jmethodID List_get_mid;
static jmethodID List_set_mid;
STATIC const mp_obj_type_t jobject_type;
STATIC const mp_obj_type_t jmethod_type;
@ -167,11 +171,36 @@ STATIC void jobject_attr(mp_obj_t self_in, qstr attr_in, mp_obj_t *dest) {
}
}
STATIC mp_obj_t jobject_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
mp_obj_jobject_t *self = self_in;
if (!JJ(IsInstanceOf, self->obj, List_class)) {
return MP_OBJ_NULL;
}
mp_uint_t idx = mp_obj_get_int(index);
if (value == MP_OBJ_NULL) {
// delete
assert(0);
} else if (value == MP_OBJ_SENTINEL) {
// load
jobject el = JJ(CallObjectMethod, self->obj, List_get_mid, idx);
return new_jobject(el);
} else {
// store
assert(0);
}
return MP_OBJ_NULL;
}
STATIC const mp_obj_type_t jobject_type = {
{ &mp_type_type },
.name = MP_QSTR_jobject,
.print = jobject_print,
.attr = jobject_attr,
.subscr = jobject_subscr,
// .locals_dict = (mp_obj_t)&jobject_locals_dict,
};
@ -414,6 +443,12 @@ STATIC void create_jvm() {
"()Ljava/lang/String;");
Method_toString_mid = (*env)->GetMethodID(env, method_class, "toString",
"()Ljava/lang/String;");
List_class = JJ(FindClass, "java/util/List");
List_get_mid = JJ(GetMethodID, List_class, "get",
"(I)Ljava/lang/Object;");
List_set_mid = JJ(GetMethodID, List_class, "set",
"(ILjava/lang/Object;)Ljava/lang/Object;");
}
STATIC mp_obj_t mod_jni_cls(mp_obj_t cls_name_in) {