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`block' doesn't have this limitation

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Sam Tobin-Hochstadt 2010-05-11 11:58:00 -04:00
parent 3965eab9c8
commit c22735ea49
1 changed files with 4 additions and 3 deletions
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7
collects/scribblings/reference/block.scrbl
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@ -13,15 +13,16 @@
@defform[(block defn-or-expr ...)]{ @defform[(block defn-or-expr ...)]{
Supports a mixture of expressions and mutually recursive definitions, Supports a mixture of expressions and mutually recursive definitions,
much like a @scheme[module] body. Unlike in a @scheme[module], as in a @scheme[module] body.
however, syntax definitions cannot be used to generate other immediate
definitions (though they can be used for expressions).
The result of the @scheme[block] form is the result The result of the @scheme[block] form is the result
of the last @scheme[defn-or-expr] if it is an expression, of the last @scheme[defn-or-expr] if it is an expression,
@|void-const| otherwise. If no @scheme[defn-or-expr] is provided @|void-const| otherwise. If no @scheme[defn-or-expr] is provided
(after flattening @scheme[begin] forms), the result is @|void-const|. (after flattening @scheme[begin] forms), the result is @|void-const|.
The final @scheme[defn-or-expr] is executed in tail position, if it is
an expression.
@examples[#:eval ev @examples[#:eval ev
(define (f x) (define (f x)