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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.
37 lines
1.1 KiB
Plaintext
37 lines
1.1 KiB
Plaintext
Parser.test
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: ∀(test: String) (Parser Bool)
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= λtest λcode
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use P = λx ∀(code: String) (Parser.Result Bool)
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use cons = λtest.head λtest.tail λcode
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use P = λx (Parser.Result Bool)
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use cons = λcode.head λcode.tail
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use P = λx
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∀(code.head: Char) ∀(code.tail: String)
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(Parser.Result Bool)
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use true = λcode.head λcode.tail
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use P = λx (Parser.Result Bool)
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use done = λcode λvalue
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(Parser.Result.done
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Bool
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(String.cons code.head code)
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value
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)
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use fail = λerror (Parser.Result.fail Bool error)
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(~(Parser.test test.tail code.tail) P done fail)
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use false = λcode.head λcode.tail
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(Parser.Result.done
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Bool
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(String.cons code.head code.tail)
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Bool.false
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)
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(~(Char.equal test.head code.head)
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P
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true
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false
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code.head
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code.tail
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)
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use nil = (Parser.Result.done Bool String.nil Bool.false)
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(~code P cons nil)
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use nil = λcode (Parser.Result.done Bool code Bool.true)
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(~test P cons nil code) |