166 lines
4.7 KiB
Racket
166 lines
4.7 KiB
Racket
#lang racket/base
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(require macro-debugger/model/debug)
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;; Testing facilities for macro debugger
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(provide trace/ns
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trace/t
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trace/k
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testing-namespace
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hide-all-policy
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hide-none-policy
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T-policy
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Tm-policy
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stx/hide-none
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stx/hide-all
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stx/hide-standard
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stx/hide-T
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stx/hide-Tm)
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(define (trace/t expr)
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(trace/ns expr #f))
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(define (trace/k expr)
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(trace/ns expr #t))
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;; Use just 'expand', not 'expand/compile-time-evals',
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;; for test backward compatibility
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;; FIXME: add tests that use 'expand/compile-time-evals'
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(define (trace/ns expr kernel?)
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(parameterize ((current-namespace (choose-namespace kernel?)))
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(trace expr expand)))
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(define (choose-namespace kernel?)
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(if kernel? kernel-namespace testing-namespace))
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(define helper-module
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'(module helper scheme/base
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(require (for-syntax scheme/base))
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(provide Tid
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Tlist
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Tlet
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Tleid
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Tlift
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myor
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the-current-output-port
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wrong
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pre-id
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id
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leid
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lift)
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(define-syntax (id stx)
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(syntax-case stx ()
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[(id x) #'x]))
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(define-syntax (pre-id stx)
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(syntax-case stx ()
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[(pre-id x) #'(id x)]))
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(define-syntax (leid stx)
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(syntax-case stx ()
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[(leid e)
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(with-syntax ([ee (local-expand #'e 'expression null)])
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#`(#%expression ee))]))
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(define-syntax (lift stx)
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(syntax-case stx ()
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[(lift e)
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(with-syntax ([v (syntax-local-lift-expression #'e)])
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#'(#%expression v))]))
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(define-syntax wrong
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(lambda (stx)
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(raise-syntax-error #f "macro blows up here!" stx)))
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(define-syntax Tid
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(syntax-rules ()
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[(Tid e) e]))
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(define-syntax Tlist
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(syntax-rules ()
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[(Tlist e) (list e)]))
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(define-syntax Tlet
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(syntax-rules ()
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[(Tlet x e b) ((lambda (x) b) e)]))
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(define-syntax (Tleid stx)
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(syntax-case stx ()
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[(Tleid e)
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(with-syntax ([ee (local-expand #'e 'expression null)])
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#`(#%expression ee))]))
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(define-syntax (Tlift stx)
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(syntax-case stx ()
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[(Tlift e)
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(with-syntax ([v (syntax-local-lift-expression #'e)])
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#'(#%expression v))]))
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(define-syntax myor
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(syntax-rules ()
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[(myor x)
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x]
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[(myor x y ...)
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(let ((t x))
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(if t t (myor y ...)))]))
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(define-syntax the-current-output-port
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(make-set!-transformer
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(syntax-rules (set!)
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[(set! the-current-output-port op)
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(#%plain-app current-output-port op)])))))
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(define kernel-namespace (make-base-empty-namespace))
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(parameterize ((current-namespace kernel-namespace))
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(namespace-require ''#%kernel)
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(eval '(#%require (for-syntax '#%kernel)))
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(eval helper-module)
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(eval '(define-syntaxes (id)
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(lambda (stx)
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(cadr (syntax->list stx)))))
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(eval '(define-syntaxes (Tid)
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(lambda (stx)
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(cadr (syntax->list stx)))))
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(eval '(define-syntaxes (Tlist)
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(lambda (stx)
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(datum->syntax (quote-syntax here)
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(list (quote-syntax list)
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(cadr (syntax->list stx)))))))
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(eval '(define-syntaxes (wrong)
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(lambda (stx)
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(raise-syntax-error #f "wrong" stx)))))
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(define testing-namespace (make-base-namespace))
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(parameterize ((current-namespace testing-namespace))
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(eval '(require scheme/base))
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(eval '(require (for-syntax scheme/base)))
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(eval helper-module)
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(eval '(require 'helper)))
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;; Specialized macro hiding tests
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(define (stx/hide-policy d policy)
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(define-values (_steps _binders _uses stx _exn)
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(parameterize ((macro-policy policy))
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(reductions+ d)))
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stx)
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(define (stx/hide-none d)
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(stx/hide-policy d hide-none-policy))
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(define (stx/hide-all d)
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(stx/hide-policy d hide-all-policy))
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(define (stx/hide-standard d)
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(stx/hide-policy d standard-policy))
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(define (stx/hide-T d)
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(stx/hide-policy d T-policy))
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(define (stx/hide-Tm d)
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(stx/hide-policy d Tm-policy))
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;; T hiding policy
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;; ALL macros & primitives are hidden
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;; EXCEPT those starting with T (Tlist and Tlet)
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(define (T-policy id)
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(or (memq (syntax-e id) '())
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(regexp-match #rx"^T" (symbol->string (syntax-e id)))))
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;; Tm hiding policy
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;; ALL MACROS & primitive tags are hidden
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;; EXCEPT those starting with T (Tlist and Tlet)
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;; EXCEPT module (=> #%module-begin gets tagged)
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(define (Tm-policy id)
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(or (memq (syntax-e id) '(module))
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(regexp-match #rx"^T" (symbol->string (syntax-e id)))))
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