33 // ciValueKlass
34 //
35 // Specialized ciInstanceKlass for value types.
36 class ciValueKlass : public ciInstanceKlass {
37 CI_PACKAGE_ACCESS
38
39 private:
40 // Index fields of a value type, indeces range from 0 to the number of fields of the
41 // value type - 1.
42 // For each index constructed, _field_index_map records the field's index
43 // in InstanceKlass::_fields (i.e., _field_index_map records the value returned by
44 // fieldDescriptor::index() for each field). If the value type has a
45 // value factory mapping, indeces are as defined in the value factory mapping.
46 GrowableArray<int>* _field_index_map;
47
48 protected:
49 ciValueKlass(KlassHandle h_k) : ciInstanceKlass(h_k), _field_index_map(NULL) {
50 assert(is_final(), "ValueKlass must be final");
51 };
52
53 int compute_field_index_map();
54
55 public:
56 bool is_valuetype() const { return true; }
57
58 // Value type fields
59 int field_count();
60 int field_size();
61 int flattened_field_count() {
62 return nof_nonstatic_fields();
63 }
64 int field_index_by_offset(int offset);
65 int field_offset_by_index(int index);
66 ciType* field_type_by_index(int index);
67 int first_field_offset() const;
68
69 int value_arg_slots();
70 };
71
72 #endif // SHARE_VM_CI_CIVALUEKLASS_HPP
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33 // ciValueKlass
34 //
35 // Specialized ciInstanceKlass for value types.
36 class ciValueKlass : public ciInstanceKlass {
37 CI_PACKAGE_ACCESS
38
39 private:
40 // Index fields of a value type, indeces range from 0 to the number of fields of the
41 // value type - 1.
42 // For each index constructed, _field_index_map records the field's index
43 // in InstanceKlass::_fields (i.e., _field_index_map records the value returned by
44 // fieldDescriptor::index() for each field). If the value type has a
45 // value factory mapping, indeces are as defined in the value factory mapping.
46 GrowableArray<int>* _field_index_map;
47
48 protected:
49 ciValueKlass(KlassHandle h_k) : ciInstanceKlass(h_k), _field_index_map(NULL) {
50 assert(is_final(), "ValueKlass must be final");
51 };
52
53 const char* type_string() { return "ciValueKlass"; }
54 int compute_field_index_map();
55
56 public:
57 bool is_valuetype() const { return true; }
58 bool flatten_array() const;
59
60 // Value type fields
61 int field_count();
62 int field_size();
63 int flattened_field_count() {
64 return nof_nonstatic_fields();
65 }
66 int field_index_by_offset(int offset);
67 int field_offset_by_index(int index);
68 ciType* field_type_by_index(int index);
69 int first_field_offset() const;
70
71 int value_arg_slots();
72 };
73
74 #endif // SHARE_VM_CI_CIVALUEKLASS_HPP
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