SBCL

WRITE compiler-macro clashes variables

Bug #581564 reported by Stas Boukarev on 2010-05-17

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	SBCL	Fix Released	Medium	Unassigned

(funcall (compiler-macro-function 'write) '(write (1+ stream) :base 10) nil) =>

(LET ((*PRINT-BASE* 10) (STREAM *STANDARD-OUTPUT*))
(SB-KERNEL:OUTPUT-OBJECT (1+ STREAM) STREAM))

Attached patch binds OBJECT variable to a form, and then calls OUTPUT-OBJECT on it.

Revision history for this message

Stas Boukarev (stassats) wrote on 2010-05-17:

WRITE-TO-STRING does the same. Attached a new patch, which fixes both.

Revision history for this message

Stas Boukarev (stassats) wrote on 2010-06-25:

#598374 bug contains a patch which fixes other problems with write compiler macros.

Nikodemus Siivola (nikodemus) on 2010-08-30

Changed in sbcl:
status:	New → Confirmed
importance:	Undecided → Medium
assignee:	nobody → Nikodemus Siivola (nikodemus)

Revision history for this message

Nikodemus Siivola (nikodemus) wrote on 2010-08-30:

Thank you.

The WRITE bug has been fixed in 1.0.40.1, WRITE-TO-STRING issue in 1.0.42.4.

Changed in sbcl:
status:	Confirmed → Fix Committed
assignee:	Nikodemus Siivola (nikodemus) → nobody

Nikodemus Siivola (nikodemus) on 2010-09-30

Changed in sbcl:
status:	Fix Committed → Fix Released

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