Oh, syntax-parameter-value has helped.
#lang racket
(require (for-syntax syntax/parse syntax/transformer)
racket/stxparam)
(define-syntax-parameter my-info '())
(define-syntax (access stx)
(syntax-parse stx
((_)
(printf "my-info = ~v\n" (syntax-parameter-value #'my-info))
#''ok)))
(define-syntax (save stx)
(syntax-parse stx
[(_ body:expr)
#'(syntax-parameterize ((my-info
(cons 'new-info (syntax-parameter-value
#'my-info))))
body)]))
(save
(begin
(save
(access))))
it prints
my-info = '(new-info new-info)
'ok
Seems to be exactly what I was looking for. Thanks for help!
Best regards,
Dmitry
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