lean4-htt/tests/lean/evalSorry.lean.expected.out
Joachim Breitner 7d60d8b563
feat: safer #eval, and #eval! (#4810)
previously, `#eval` would happily evaluate expressions that contain
`sorry`, either explicitly or because of failing tactics. In conjunction
with operations like array access this can lead to the lean process
crashing, which isn't particularly great.

So how `#eval` will refuse to run code that (transitively) depends on
the `sorry` axiom (using the same code as `#print axioms`).

If the user really wants to run it, they can use `#eval!`.

Closes #1697
2024-07-23 15:26:56 +00:00

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evalSorry.lean:5:33-5:34: error: application type mismatch
f x
argument
x
has type
String : Type
but is expected to have type
Nat : Type
evalSorry.lean:7:0-7:15: error: cannot evaluate expression that depends on the `sorry` axiom.
Use `#eval!` to evaluate nevertheless (which may cause lean to crash).
evalSorry.lean:11:0-11:15: error: cannot evaluate expression that depends on the `sorry` axiom.
Use `#eval!` to evaluate nevertheless (which may cause lean to crash).