20 lines
609 B
Racket
20 lines
609 B
Racket
#lang racket
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(require compiler/zo-parse)
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(define (alpha-vary-ctop top)
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(match top
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[(struct compilation-top (max-let-depth prefix form))
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(make-compilation-top max-let-depth (alpha-vary-prefix prefix) form)]))
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(define (alpha-vary-prefix p)
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(struct-copy prefix p
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[toplevels
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(map (match-lambda
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[(and sym (? symbol?))
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(gensym sym)]
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[other
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other])
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(prefix-toplevels p))]))
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(provide/contract
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[alpha-vary-ctop (compilation-top? . -> . compilation-top?)])
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