26 lines
617 B
Text
26 lines
617 B
Text
import Init.Lean.Expr
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open Lean
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def tst1 : IO Unit :=
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do let f := Expr.const `f [];
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let a := Expr.const `a [];
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let b := Expr.const `b [];
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let t := mkApp f #[a, b, b];
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let as₁ := t.getAppArgs;
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let as₂ := t.getAppRevArgs;
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IO.println as₁;
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IO.println as₂;
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unless (as₁.reverse == as₂) $ throw "failed";
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pure ()
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#eval tst1
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def tst2 : IO Unit :=
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do let l1 := Level.max (Level.param `a) (Level.param `b);
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let l2 := Level.max (Level.param `b) (Level.param `a);
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IO.println l1;
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IO.println l2;
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unless (Level.isEquiv l1 l2) $ throw "not equiv";
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pure ()
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#eval tst2
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