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    • 5. 发明授权
    • Virtual method protection
    • 虚拟方法保护
    • US07155703B2
    • 2006-12-26
    • US10622413
    • 2003-07-18
    • Erik MeijerCraig T. SinclairJames H. HoggPeter H. GoldeSerge LidinChristopher W. Brumme
    • Erik MeijerCraig T. SinclairJames H. HoggPeter H. GoldeSerge LidinChristopher W. Brumme
    • G06F9/44
    • G06F8/433G06F9/449
    • Performing validation of a derived virtual method includes receiving program code where the derived virtual method is derived from a virtual method of the program language used to generate the program code, compiling the program code to an intermediate language expression, generating metadata descriptive of the compiled program code, validating the use of the derived virtual method by accessing the metadata, and permitting the use of the derived virtual method if the metadata grants override permissions concerning the virtual method of the programming language. The metadata indicating access and override permissions may be generated while compiling the program code in the common language infrastructure. Alternately, the flag may use pre-existing values indicative of the access and override permissions concerning the virtual method of the programming language.
    • 执行衍生虚拟方法的验证包括接收程序代码,其中派生虚拟方法从用于生成程序代码的程序语言的虚拟方法导出,将程序代码编译为中间语言表达,生成描述编译程序的元数据 代码,通过访问元数据来验证导出的虚拟方法的使用,以及如果元数据授予涉及编程语言的虚拟方法的覆盖许可,则允许使用导出的虚拟方法。 可以在公共语言基础设施中编译程序代码时生成指示访问和覆盖权限的元数据。 或者,标志可以使用指示关于编程语言的虚拟方法的访问和覆盖许可的预先存在的值。