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Now, there are two local binders: let x = ... use x = ... The 'let' binder will create a local definition, type-check it, and assign a name to it. When compiled, it will create 'dup' nodes. The 'use' binder is just an alias. It will not bind a new variable, and, when compiled, will create inline copies. Also, for type-checking, it allows creating aliases that are definitionaly equal for the checker.
11 lines
327 B
Plaintext
11 lines
327 B
Plaintext
Parser.bind
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: ∀(A: *)
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∀(B: *)
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∀(a: (Parser A))
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∀(b: ∀(x: A) (Parser B))
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(Parser B)
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= λA λB λa λb λcode
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use P = λx ∀(b: ∀(x: A) (Parser B)) (Parser.Result B)
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use done = λa.code λa.value λb (b a.value a.code)
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use fail = λa.error λb (Parser.Result.fail B a.error)
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(~(a code) P done fail b) |