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35 lines
2.0 KiB
Racket
35 lines
2.0 KiB
Racket
#lang br
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(provide (all-defined-out))
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(define #'(introduce-scope _color . _parents)
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(replace-context #'_color
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(with-syntax ([color #'_color]
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[color-string (format "~a" (syntax->datum #'_color))]
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[define:color (format-id #f "define:~a" #'_color)]
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[id:color (format-id #f "id:~a" #'_color)]
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[color-binding-id (format-id #f "~a-binding-id" #'_color)]
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[color-binding-form (format-id #f "~a-binding-form" #'_color)]
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[color-id (format-id #f "~a-id" #'_color)]
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[module-name (generate-temporary)]
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[parents (if (pair? (syntax->list #'_parents))
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(car (syntax->list #'_parents))
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(syntax->list #'_parents))])
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#'(begin
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(module module-name br
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(require (for-syntax br/datum br/syntax))
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(provide (for-syntax (all-defined-out)) (all-defined-out))
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(begin-for-syntax
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(define-scope color parents))
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(define #'(define:color _id-in _expr)
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(with-syntax* ([id:color (shared-syntax (format-datum "~a:~a" #'_id-in color-string))]
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[color-binding-id (color-binding-form #'_id-in)]
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[color-id (color #'color-binding-id)])
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#'(begin
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(define color-binding-id _expr)
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(define-syntax id:color
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(syntax-id-rules ()
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[_ color-id]))))))
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(require 'module-name)))))
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