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Referents: default definitions for a reopened stream | |||||
Prerequisite Concepts | Related Syntax |
defaulting
is also allowed on a reopen
action, but only one that has an as
part, that is, one that explicitly specifies a stream attachment.
A referents-allowed
in an open
action, in a set
(or set stream
) action or in a reopen
action that has an explicit stream association (that is, as
) can have a defaulting
part also, that describes the default referent value for the stream.
On the other hand, a "dynamic" reopen
action, although it can specify referents-allowed
(if it was originally opened with referents-allowed
), cannot specify defaulting
. In this case the originally specified defaulting
, if any, on the open
action that created the stream continues to apply. If there was no defaulting
specified on the original open
action, then the stream has no defaulting
.
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