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55 lines
1.8 KiB
Racket
55 lines
1.8 KiB
Racket
#lang br/quicklang
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(require "struct.rkt" "run.rkt" "elements.rkt" "setup.rkt")
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(provide (rename-out [b-module-begin #%module-begin])
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(all-from-out "elements.rkt"))
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(define-macro (b-module-begin (b-program LINE ...))
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(with-pattern
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([((b-line NUM STMT ...) ...) #'(LINE ...)]
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[(LINE-FUNC ...) (prefix-id "line-" #'(NUM ...))]
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[(VAR-ID ...) (find-property 'b-id #'(LINE ...))]
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[(IMPORT-NAME ...)
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(find-property 'b-import-name #'(LINE ...))]
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[(EXPORT-NAME ...)
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(find-property 'b-export-name #'(LINE ...))]
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[((SHELL-ID SHELL-IDX) ...)
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(for/list ([idx (in-range 10)])
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(list (suffix-id #'arg idx #:context caller-stx)
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idx))]
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[(UNIQUE-ID ...)
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(unique-ids
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(syntax->list #'(VAR-ID ... SHELL-ID ...)))])
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#'(#%module-begin
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(module configure-runtime br
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(require basic-demo-3/setup)
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(do-setup!))
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(require IMPORT-NAME) ...
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(provide EXPORT-NAME ...)
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(define UNIQUE-ID 0) ...
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(let ([clargs (current-command-line-arguments)])
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(set! SHELL-ID (get-clarg clargs SHELL-IDX)) ...)
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LINE ...
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(define line-table
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(apply hasheqv (append (list NUM LINE-FUNC) ...)))
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(parameterize
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([current-output-port (basic-output-port)])
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(void (run line-table))))))
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(define (get-clarg clargs idx)
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(with-handlers ([exn:fail? (λ (exn) 0)])
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(let ([val (vector-ref clargs idx)])
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(or (string->number val) val))))
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(begin-for-syntax
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(require racket/list)
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(define (unique-ids stxs)
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(remove-duplicates stxs #:key syntax->datum))
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(define (find-property which line-stxs)
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(unique-ids
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(for/list ([stx (in-list (stx-flatten line-stxs))]
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#:when (syntax-property stx which))
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stx))))
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