def j_string(loader: ClassLoader, python_str):
"""
根据python字符串返回相应的Java字符串实例
:param loader:
:param python_str:
:return:
"""
# 如果Java字符串已经在池中，直接返回
interned_str = interned_strings.get(python_str)
if interned_str:
return interned_str
# 把python字符串（utf-8格式）转成Java字符数组（utf-16格式）
chars = string_to_utf16(python_str)
# 创建一个Java字符串实例
j_chars = Object(loader.load_class("[C"), chars)
# 把字符串实例的value变量设置成刚刚转换过来的字符数组
j_str = loader.load_class("java/lang/String").new_object()
j_str.set_ref_var("value", "[C", j_chars)
# 把Java字符串放入池中
interned_strings[python_str] = j_str
return j_str
def start_JVM(cmd):
class_path = Classpath.parse(cmd.XjreOption, cmd.cpOption)
print("classpath:{0} class:{1} args:{2}".format(class_path, cmd.class_name, cmd.args))
class_loader = ClassLoader(class_path, cmd.verbose_class_flag)
class_name = cmd.class_name.replace(".", "/")
main_class = class_loader.load_class(class_name)
main_method = main_class.get_main_method()
if main_method:
Interpreter.interpret(main_method, cmd.verbose_inst_flag)
else:
print("Main method not found in class {0}".format(cmd.class_name))