0e49576fe4
This PR makes `#guard_msgs` to treat `trace` messages separate from `info`, `warning` and `error`. It also introduce the ability to say `#guard_msgs (pass info`, like `(drop info)` so far, and also adds `(check info)` as the explicit form of `(info)`, for completeness. Fixes #8266
35 lines
818 B
Text
35 lines
818 B
Text
/-!
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Checks that `simp` removes the `binderNameHint` in the pre-phase, and does not spend time looking
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at its arguments.
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The following traces should show no rewriting of `x` or `y`, only `z`.
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-/
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def x : Nat := 0
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def y : Nat := 0
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def z : Nat := 0
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set_option trace.Meta.Tactic.simp.rewrite true
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/--
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trace: [Meta.Tactic.simp.rewrite] ↓ binderNameHint.eq_1:1000:
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binderNameHint x y z
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==>
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z
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[Meta.Tactic.simp.rewrite] unfold z, z ==> 0
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[Meta.Tactic.simp.rewrite] eq_self:1000: 0 = 0 ==> True
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-/
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#guard_msgs in
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example : binderNameHint x y z = 0 := by
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simp [x, y, z]
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/--
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trace: [Meta.Tactic.simp.rewrite] ↓ binderNameHint.eq_1:1000:
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binderNameHint x y z
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==>
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z
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[Meta.Tactic.simp.rewrite] unfold z, z ==> 0
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-/
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#guard_msgs in
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example : binderNameHint x y z = 0 := by
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dsimp [x, y, z]
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