29303b37b8
This PR modifies the pretty printing of raw natural number literals; now both `pp.explicit` and `pp.natLit` enable the `nat_lit` prefix. An effect of this is that the hover on such a literal in the Infoview has the `nat_lit` prefix. Amendment to RFC #3021: In the reference-level explanation, now it should read > When `pp.natLit` and `pp.explicit` are false, then the `nat_lit n` expression delaborates as `n`, and otherwise it delaborates as `nat_lit n`.
38 lines
694 B
Text
38 lines
694 B
Text
--
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def f : List Int → Bool := fun _ => true
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def ex3 : IO Bool := do
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let xs ← pure [1, 2, 3];
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pure $ f xs -- Works
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inductive Expr
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| val : Nat → Expr
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| app : Expr → Expr → Expr
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instance : Coe Nat Expr := ⟨Expr.val⟩
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instance : OfNat Expr n where
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ofNat := Expr.val n
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def foo : Expr → Expr := fun e => e
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def ex1 : Bool :=
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f [1, 2, 3] -- Works
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def ex2 : Bool :=
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let xs := [1, 2, 3];
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f xs -- Works
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def ex4 :=
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[1, 2, 3].map $ fun x => x+1
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def ex5 (xs : List String) :=
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xs.foldl (fun r x => r.push x) Array.empty
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set_option pp.all true in
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/-- info: foo (@OfNat.ofNat.{0} Expr (nat_lit 1) (@instOfNatExpr (nat_lit 1))) : Expr -/
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#guard_msgs in
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#check foo 1
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def ex6 :=
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foo 1
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