Add missing native member getters.

Author: fangerer

graalpython/com.oracle.graal.python.cext/src/capi.c

@@ -284,6 +284,21 @@ PyObject* get_tp_subclasses(PyTypeObject* obj) {
 	return native_to_java(obj->tp_subclasses);
 }
 
+/** to be used from Java code only; reads native 'tp_dictoffset' field */
+Py_ssize_t get_tp_dictoffset(PyTypeObject* obj) {
+	return obj->tp_dictoffset;
+}
+
+/** to be used from Java code only; reads native 'tp_itemsize' field */
+Py_ssize_t get_tp_itemsize(PyTypeObject* obj) {
+	return obj->tp_itemsize;
+}
+
+/** to be used from Java code only; reads native 'tp_basicsize' field */
+Py_ssize_t get_tp_basicsize(PyTypeObject* obj) {
+	return obj->tp_basicsize;
+}
+
 /** to be used from Java code only; returns the type ID for a byte array */
 polyglot_typeid get_byte_array_typeid(uint64_t len) {
     return polyglot_array_typeid(polyglot_i8_typeid(), len);

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/NativeCAPISymbols.java

@@ -65,6 +65,9 @@ public abstract class NativeCAPISymbols {
     public static final String FUN_GET_TP_NAME = "get_tp_name";
     public static final String FUN_GET_TP_MRO = "get_tp_mro";
     public static final String FUN_GET_TP_SUBCLASSES = "get_tp_subclasses";
+    public static final String FUN_GET_TP_DICTOFFSET = "get_tp_dictoffset";
+    public static final String FUN_GET_TP_BASICSIZE = "get_tp_basicsize";
+    public static final String FUN_GET_TP_ITEMSIZE = "get_tp_itemsize";
     public static final String FUN_DEREF_HANDLE = "truffle_deref_handle_for_managed";
     public static final String FUN_GET_BYTE_ARRAY_TYPE_ID = "get_byte_array_typeid";
     public static final String FUN_GET_PTR_ARRAY_TYPE_ID = "get_ptr_array_typeid";