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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
216 B
Plaintext
11 lines
216 B
Plaintext
String.indent
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: ∀(tab: Nat) String
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= λtab
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use P = λx String
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use succ = λtab.pred
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(String.cons
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#32
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(String.cons #32 (String.indent tab.pred))
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)
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use zero = String.nil
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(~tab P succ zero) |