OC类布局

class_rw_t

- flags: uint32_t- version: uint32_t- ro: class_ro_t- method_lists: method_list_t **- properties: chained_property_list*- protocols: protocol_list_t **- firstSubclass: Class- nextSiblingClass: Class- demangledName: char*

typedef uintptr_t protocol_ref_t;

property_t

- name: const char *- attributes: const char *

class_data_bits_t

- bits: uintptr_t

bucket_t

- _key: cache_key_t- _imp: IMP

method_t

- name: SEL- types: const char *- imp: IMP

typedef void (*IMP)(void);

typedef uintptr_t cache_key_t;

typedef uint32_t mask_t;

isa

- isa:Class- superclass:Class- cache: cache_t- bits: uintptr_t

OC类

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cache_t

- _buckets: bucket_t- _mask: mask_t- _occupied: mask_t

class_ro_t

- flags: uint32_t- instanceStart: uint32_t- instanceSize: uint32_t- reserved: uint32_t- ivarLayout: const uint8_t *- name: const char *- baseMethods: const method_list_t *- baseProtocols: const protocol_list_t *- ivars: const ivar_list_t *- weakIvarLayout: const uint8_t *- baseProperties: const property_list_t *

chained_property_list

- next: chained_property_list *- count: uint32_t- list[0]: property_t

ivar_list_t

- offset: int32_t- name: const char *- type: const char *- alignment_raw: uint32_t- size: uint32_t

protocol_list_t

- count: uintptr_t- list[0]: protocol_ref_t

method_list_t

- entsize_NEVER_USE: uint32_t- count: uint32_t- first: method_t