dynamic extent造句

Continuations created with call / cc may be called more than once, and even from outside the dynamic extent of the call / cc application.
Formally, the bindings in a lexical environment have lexical scope and may have either indefinite extent or dynamic extent, depending on the type of namespace.
Bindings which exhibit dynamic extent ( lifetime tied to the activation and deactivation of a block ) and indefinite scope ( visible to all functions which are called from that block ) are said to have dynamic scope.
The expression ( GO X ) is erroneous if it is not actually embedded in a TAGBODY which contains a label X . However, the label bindings disappear when the TAGBODY terminates its execution, because they have dynamic extent.
Bindings established in this environment have dynamic extent, which means that a binding is established at the start of the execution of some construct, such as a let block, and disappears when that construct finishes executing : its lifetime is tied to the dynamic activation and deactivation of a block.
It's difficult to find dynamic extent in a sentence. 用dynamic extent造句挺难的