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doc correction compiler/zo-struct

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Closes #2016
This commit is contained in:
Matthew Flatt 2018-05-19 10:31:25 -06:00
parent 293beac7ff
commit 4d04a77cb3
1 changed files with 7 additions and 4 deletions
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11
pkgs/racket-doc/scribblings/raco/zo-struct.scrbl
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@ -416,13 +416,16 @@ binding, constructor, etc.}
@racket[seq] is never in tail position, even if it is the only
expression in the list.}
@defstruct+[(varref expr) ([toplevel (or/c toplevel? #t)]
@defstruct+[(varref expr) ([toplevel (or/c toplevel? #t #f symbol?)]
[dummy (or/c toplevel? #f)]
[constant? boolean?]
[from-unsafe? boolean?])]{
Represents a @racket[#%variable-reference] form. The @racket[toplevel]
field is @racket[#t] if the original reference was to a constant local
binding. The @racket[dummy] field
Represents a @racket[#%variable-reference] form. The
@racket[toplevel] field is @racket[#t] if the original reference was
to a constant local binding, @racket[#f] if the variable reference
is for @racket[(#%variable-reference)] and does not refer to a
specific variable, or a symbol if the variable reference refers to a
primitive variable. The @racket[dummy] field
accesses a variable bucket that strongly references its namespace (as
opposed to a normal variable bucket, which only weakly references its
namespace); it can be @racket[#f].