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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.
12 lines
302 B
Plaintext
12 lines
302 B
Plaintext
Parser.is_eof
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: (Parser Bool)
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= 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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(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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use nil = (Parser.Result.done Bool String.nil Bool.true)
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(~(String.skip code) P cons nil) |