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Add a generator for symbols.

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Right now just _<hex digit>
This commit is contained in:
Rob Rix 2015-10-16 15:21:27 -04:00
parent d413f24e57
commit 057a847f30
1 changed files with 1 additions and 0 deletions
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prototype/DoubtTests/RangedTerm.swift
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@ -76,6 +76,7 @@ struct UnannotatedTerm {
extension UnannotatedTerm: Arbitrary {
static var arbitrary: Gen<UnannotatedTerm> {
let symbol: Gen<String> = Gen<Int>.choose((0, 15)).fmap { "_\($0)" }
let leaf: Gen<Term> = String.arbitrary.fmap { Term((), .Leaf($0)) }
let indexed: Gen<Term> = Gen.sized { n in
Gen<Int>.choose((0, n)).bind { n in