lean4-htt/tests/elab/implDetailBinder.lean
Garmelon 08eb78a5b2
chore: switch to new test/bench suite (#12590)
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.

For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
2026-02-25 13:51:53 +00:00

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/-!
# Tests of names prefixed with `__` in binders
Variable binding constructs and tactics
should introduce hypotheses whose names start with `__` as `implDetail`s.
-/
-- `__`-prefixed binders on top-level definitions are _not_ `implDetail`s.
-- (This may change in the future if a usecase appears.)
example {p : Prop} (__x : p) : p := by
assumption
-- `intro` does not mark `__`-prefixed binders as `implDetail`.
-- (This may change in the future if a usecase appears.)
example {p : Prop} : p → p := by
intro __x
assumption
-- Test `have`
example {p : Prop} : p → p := by
have __x : p → p := id
fail_if_success assumption
have := __x; assumption
-- Test `let`
example {p : Prop} : p → p := by
let __x : p → p := id
fail_if_success assumption
have := __x; assumption
-- Test `fun`
example {p : Prop} : p → p :=
fun (__x : p) => by
fail_if_success assumption
have := __x; assumption
-- Test a single-branch, single-discriminant `match`
example {p : Prop} : True := by
have (__x : p) : p :=
match __x with
| __y => by
fail_if_success assumption
have := __y; assumption
trivial
-- Test a multi-discriminant `match`
example {p : Prop} : True := by
have (__x : p) : p :=
match __x, __x with
| __y, __z => by
fail_if_success assumption
have := __y; assumption
trivial
-- Test a destructuring `match`
example {p q : Prop} : True := by
have (__x : p ∧ q) : p :=
match __x with
| ⟨__y, __z⟩ => by
fail_if_success assumption
have := __y; assumption
trivial