404 ciField* field = _nonstatic_fields->at(i);
405 int field_off = field->offset_in_bytes();
406 if (field_off == field_offset)
407 return field;
408 if (field_off > field_offset)
409 break;
410 // could do binary search or check bins, but probably not worth it
411 }
412 return NULL;
413 }
414 VM_ENTRY_MARK;
415 InstanceKlass* k = get_instanceKlass();
416 fieldDescriptor fd;
417 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
418 return NULL;
419 }
420 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
421 return field;
422 }
423
424 // ------------------------------------------------------------------
425 // ciInstanceKlass::get_field_by_name
426 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
427 VM_ENTRY_MARK;
428 InstanceKlass* k = get_instanceKlass();
429 fieldDescriptor fd;
430 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
431 if (def == NULL) {
432 return NULL;
433 }
434 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
435 return field;
436 }
437
438
439 static int sort_field_by_offset(ciField** a, ciField** b) {
440 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
441 // (no worries about 32-bit overflow...)
442 }
443
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404 ciField* field = _nonstatic_fields->at(i);
405 int field_off = field->offset_in_bytes();
406 if (field_off == field_offset)
407 return field;
408 if (field_off > field_offset)
409 break;
410 // could do binary search or check bins, but probably not worth it
411 }
412 return NULL;
413 }
414 VM_ENTRY_MARK;
415 InstanceKlass* k = get_instanceKlass();
416 fieldDescriptor fd;
417 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
418 return NULL;
419 }
420 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
421 return field;
422 }
423
424 ciField* ciInstanceKlass::get_non_flattened_field_by_offset(int field_offset) {
425 if (super() != NULL && super()->has_nonstatic_fields()) {
426 ciField* f = super()->get_non_flattened_field_by_offset(field_offset);
427 if (f != NULL) {
428 return f;
429 }
430 }
431
432 VM_ENTRY_MARK;
433 InstanceKlass* k = get_instanceKlass();
434 Arena* arena = CURRENT_ENV->arena();
435 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
436 if (fs.access_flags().is_static()) continue;
437 fieldDescriptor& fd = fs.field_descriptor();
438 if (fd.offset() == field_offset) {
439 ciField* f = new (arena) ciField(&fd);
440 return f;
441 }
442 }
443
444 return NULL;
445 }
446
447 // ------------------------------------------------------------------
448 // ciInstanceKlass::get_field_by_name
449 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
450 VM_ENTRY_MARK;
451 InstanceKlass* k = get_instanceKlass();
452 fieldDescriptor fd;
453 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
454 if (def == NULL) {
455 return NULL;
456 }
457 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
458 return field;
459 }
460
461
462 static int sort_field_by_offset(ciField** a, ciField** b) {
463 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
464 // (no worries about 32-bit overflow...)
465 }
466
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