45 if (m == NULL || m->klass() != SystemDictionary::Class_klass()) {
46 return NULL;
47 }
48 // Return either a primitive type or a klass.
49 if (java_lang_Class::is_primitive(m)) {
50 return ciType::make(java_lang_Class::primitive_type(m));
51 } else {
52 Klass* k = java_lang_Class::as_Klass(m);
53 assert(k != NULL, "");
54 return CURRENT_THREAD_ENV->get_klass(k);
55 }
56 }
57
58 // ------------------------------------------------------------------
59 // ciInstance::field_value
60 //
61 // Constant value of a field.
62 ciConstant ciInstance::field_value(ciField* field) {
63 assert(is_loaded(), "invalid access - must be loaded");
64 assert(field->holder()->is_loaded(), "invalid access - holder must be loaded");
65 assert(klass()->is_subclass_of(field->holder()), "invalid access - must be subclass");
66
67 VM_ENTRY_MARK;
68 Handle obj = get_oop();
69 assert(!obj.is_null(), "bad oop");
70 BasicType field_btype = field->type()->basic_type();
71 int offset = field->offset();
72
73 switch(field_btype) {
74 case T_BYTE:
75 return ciConstant(field_btype, obj->byte_field(offset));
76 break;
77 case T_CHAR:
78 return ciConstant(field_btype, obj->char_field(offset));
79 break;
80 case T_SHORT:
81 return ciConstant(field_btype, obj->short_field(offset));
82 break;
83 case T_BOOLEAN:
84 return ciConstant(field_btype, obj->bool_field(offset));
85 break;
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45 if (m == NULL || m->klass() != SystemDictionary::Class_klass()) {
46 return NULL;
47 }
48 // Return either a primitive type or a klass.
49 if (java_lang_Class::is_primitive(m)) {
50 return ciType::make(java_lang_Class::primitive_type(m));
51 } else {
52 Klass* k = java_lang_Class::as_Klass(m);
53 assert(k != NULL, "");
54 return CURRENT_THREAD_ENV->get_klass(k);
55 }
56 }
57
58 // ------------------------------------------------------------------
59 // ciInstance::field_value
60 //
61 // Constant value of a field.
62 ciConstant ciInstance::field_value(ciField* field) {
63 assert(is_loaded(), "invalid access - must be loaded");
64 assert(field->holder()->is_loaded(), "invalid access - holder must be loaded");
65 assert(field->holder()->is_valuetype() || klass()->is_subclass_of(field->holder()), "invalid access - must be subclass");
66
67 VM_ENTRY_MARK;
68 Handle obj = get_oop();
69 assert(!obj.is_null(), "bad oop");
70 BasicType field_btype = field->type()->basic_type();
71 int offset = field->offset();
72
73 switch(field_btype) {
74 case T_BYTE:
75 return ciConstant(field_btype, obj->byte_field(offset));
76 break;
77 case T_CHAR:
78 return ciConstant(field_btype, obj->char_field(offset));
79 break;
80 case T_SHORT:
81 return ciConstant(field_btype, obj->short_field(offset));
82 break;
83 case T_BOOLEAN:
84 return ciConstant(field_btype, obj->bool_field(offset));
85 break;
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