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Add generic setf for gray:stream-element-type #1530

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merged 2 commits into from
Dec 13, 2023
Merged

Add generic setf for gray:stream-element-type #1530

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7c5173d
Add SETF for STREAM-ELEMENT-TYPE
yitzchak Dec 13, 2023
5674652
Update release notes
yitzchak Dec 13, 2023
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2 changes: 2 additions & 0 deletions RELEASE_NOTES.md
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Expand Up @@ -10,6 +10,8 @@
for Gray streams.
* Generic versions of `cl:pathname` and `cl:truename`, both of which
are available after the Gray stream modules is required.
* Generic `(setf gray:stream-element-type)` for basic support of
bivalent streams.

## Changed
* `cl:format` and `pprint` now respect the value returned bye
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6 changes: 6 additions & 0 deletions src/lisp/kernel/clos/streams.lisp
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Expand Up @@ -55,6 +55,12 @@
STREAM. The class FUNDAMENTAL-CHARACTER-STREAM provides a default method
which returns CHARACTER."))

(defgeneric (setf stream-element-type) (new-value stream)
(:documentation
"Set the type specifier of the kind of object returned by the
STREAM. There is no default method as this is optional and only
needed for bivalent streams."))

(defgeneric stream-finish-output (stream)
(:documentation
"Attempts to ensure that all output sent to the Stream has reached
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