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85ad65b026
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.
39 lines
839 B
Plaintext
39 lines
839 B
Plaintext
Kind.Term.parser.def
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: (Parser.Guard Kind.PreTerm)
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= (Parser.Guard.text
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Kind.PreTerm
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"use "
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(Kind.Term.parser.bind
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Unit
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(Parser.text "use ")
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λ_
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(Kind.Term.parser.bind
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String
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Parser.name
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λnam
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(Kind.Term.parser.bind
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Unit
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(Parser.text "=")
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λ_
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(Kind.Term.parser.bind
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Kind.PreTerm
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Kind.Term.parser
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λval
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(Kind.Term.parser.bind
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Kind.PreTerm
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Kind.Term.parser
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λbod
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(Kind.Term.parser.pure
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λscp
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(Kind.def
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nam
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(val scp)
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λx (bod (Kind.Scope.extend nam x scp))
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)
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)
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)
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)
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)
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)
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)
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) |