7d60d8b563
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
4 lines
299 B
Text
4 lines
299 B
Text
277b.lean:8:10-8:16: error: invalid constructor ⟨...⟩, expected type must be an inductive type with only one constructor
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List Point
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277b.lean:8:0-8:16: error: cannot evaluate expression that depends on the `sorry` axiom.
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Use `#eval!` to evaluate nevertheless (which may cause lean to crash).
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