2d4f3e2ac9
The layer is now redundant, since everything left in "pkgs" is in the "racket-pkgs" category.
29 lines
1.1 KiB
Racket
29 lines
1.1 KiB
Racket
#lang scribble/doc
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@(require "common.rkt" (for-label syntax/wrap-modbeg))
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@title[#:tag "wrap-modbeg"]{Wrapping Module-Body Expressions}
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@defmodule[syntax/wrap-modbeg]
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@history[#:added "6.0.0.1"]
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@defproc[(make-wrapping-module-begin [wrap-form syntax?]
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[module-begin-form syntax? #'#%plain-module-begin])
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(syntax? . -> . syntax?)]{
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Provided @racket[for-syntax].
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Constructs a function that is suitable for use as a
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@racket[#%module-begin] replacement, particularly to replace the
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facet of @racket[#%module-begin] that wraps each top-level
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expression to print the expression's result(s).
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The function takes a syntax object and returns a syntax object using
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@racket[module-begin-form]. Assuming that @racket[module-begin-form]
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resembles @racket[#%plain-module-begin], each top-level expression
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@racket[_expr] will be wrapped as @racket[(wrap-form _expr)], while
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top-level declarations (such as @racket[define-values] and
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@racket[require] forms) are left as-is. Expressions are detected after
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macro expansion and @racket[begin] splicing, and expansion is
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interleaved with declaration processing as usual.}
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