| 摘要 |
A language extension that advances safety in system programming by specifying a lifetime of a reference that represents a resource. In accordance with the language extension, the lifetime references a particular scope in a manner that the compiler generates computer-executable instructions that enforce the lifetime of the reference to be a function of (e.g., no longer than) the lifetime of the particular scope. Accordingly, the resource lifetime may be specified in advance to have a particular scope. This helps in performing resource management as typical managed language programs can allow resources to exist indefinitely. Furthermore, because the resources have a defined finite lifetime, they might be more conveniently allocated on a stack, instead of on a heap, for much more efficient processing. |
