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unix/modjni: Implement len() for objects with java.util.List interface.

This commit is contained in:
Paul Sokolovsky 2015-09-29 10:05:30 -07:00
parent 77020281ae
commit f3ca8623f7
1 changed files with 21 additions and 0 deletions
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21
unix/modjni.c
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@ -30,6 +30,7 @@
#include <dlfcn.h>
#include "py/nlr.h"
#include "py/runtime0.h"
#include "py/runtime.h"
#include "py/binary.h"
@ -51,6 +52,7 @@ static jmethodID Method_toString_mid;
static jclass List_class;
static jmethodID List_get_mid;
static jmethodID List_set_mid;
static jmethodID List_size_mid;
STATIC const mp_obj_type_t jobject_type;
STATIC const mp_obj_type_t jmethod_type;
@ -207,10 +209,27 @@ STATIC mp_obj_t jobject_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value)
return MP_OBJ_NULL;
}
STATIC mp_obj_t jobject_unary_op(mp_uint_t op, mp_obj_t self_in) {
mp_obj_jobject_t *self = self_in;
switch (op) {
case MP_UNARY_OP_BOOL:
case MP_UNARY_OP_LEN: {
jint len = JJ(CallIntMethod, self->obj, List_size_mid);
if (op == MP_UNARY_OP_BOOL) {
return MP_BOOL(len != 0);
}
return MP_OBJ_NEW_SMALL_INT(len);
}
default:
return MP_OBJ_NULL; // op not supported
}
}
STATIC const mp_obj_type_t jobject_type = {
{ &mp_type_type },
.name = MP_QSTR_jobject,
.print = jobject_print,
.unary_op = jobject_unary_op,
.attr = jobject_attr,
.subscr = jobject_subscr,
// .locals_dict = (mp_obj_t)&jobject_locals_dict,
@ -471,6 +490,8 @@ STATIC void create_jvm() {
"(I)Ljava/lang/Object;");
List_set_mid = JJ(GetMethodID, List_class, "set",
"(ILjava/lang/Object;)Ljava/lang/Object;");
List_size_mid = JJ(GetMethodID, List_class, "size",
"()I");
}
STATIC mp_obj_t mod_jni_cls(mp_obj_t cls_name_in) {