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Expand on quote-syntax docs

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This commit is contained in:
Asumu Takikawa 2012-12-10 17:48:25 -05:00
parent 2bc1528630
commit 9c70f3373d
1 changed files with 12 additions and 4 deletions
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16
collects/scribblings/reference/syntax.scrbl
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@ -16,7 +16,8 @@
racket/lazy-require
(only-in compiler/cm-accomplice
register-external-module)
racket/performance-hint))
racket/performance-hint
syntax/parse))
@(define require-eval (make-base-eval))
@(define syntax-eval
@ -2728,12 +2729,19 @@ escape. An @racket[unquote-splicing] form as an expression is a syntax error.}
@defform[(quote-syntax datum)]{
Produces a @tech{syntax object} that preserves the @tech{lexical
information} and source-location information attached to
@racket[datum] at expansion time.
Similar to @racket[quote], but produces a @tech{syntax object}
that preserves the @tech{lexical information} and source-location
information attached to @racket[datum] at expansion time.
Unlike @racket[syntax] (@litchar{#'}), @racket[quote-syntax] does
not substitute pattern variables bound by @racket[with-syntax],
@racket[syntax-parse], or @racket[syntax-case].
@mz-examples[
(syntax? (quote-syntax x))
(quote-syntax (1 2 3))
(with-syntax ([a 5])
(quote-syntax (a b c)))
]
}