class ConstantClassInfo(ConstantInfo):
def __init__(self, constant_pool):
from ch07.classfile.ConstantPool import ConstantPool
self.cp = ConstantPool(constant_pool)
self.name_index = 0
def read_info(self, class_reader):
self.name_index = int.from_bytes(class_reader.read_unit16(),
byteorder="big")
@property
def name(self):
return self.cp.get_utf8(self.name_index)
class ConstantStringInfo(ConstantInfo):
def __init__(self, constant_pool):
from ch07.classfile.ConstantPool import ConstantPool
self.cp = ConstantPool(constant_pool)
self.string_index = ""
# 读取常量池索引
def read_info(self, class_reader):
self.string_index = int.from_bytes(class_reader.read_unit16(), byteorder="big")
# 按索引从常量池中查找字符串
def __str__(self):
return self.cp.get_utf8(self.string_index)