33 lines
594 B
Scheme
33 lines
594 B
Scheme
#lang scheme
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(require redex)
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(define-language tl-grammar
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[v (cont (hide-hole E))]
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[E hole
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(v ... E)])
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(define test1
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(reduction-relation
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tl-grammar
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[--> (in-hole E_1 (explode))
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(in-hole E_1 1)]))
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(test--> test1
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(term ((cont hole) (explode)))
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(term ((cont hole) 1)))
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(define test2
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(reduction-relation
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tl-grammar
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[--> (in-hole E_1 (explode))
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(asplode E_1)]))
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(define-metafunction tl-grammar
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asplode : E -> any
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[(asplode ((cont hole) hole))
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okay])
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(test--> test2
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(term ((cont hole) (explode)))
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(term okay))
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