8f1c18d9f4
This PR improves pretty printing of level metavariables: they now print with a per-definition index rather than their per-module internal identifiers. Furthermore, `+` is printed uniformly in level expressions with surrounding spaces. **Breaking metaprogramming change:** level pretty printing should use `delabLevel` or `MessageData.ofLevel`; functions such as `format` or `toString` do not have access to the indices, since they are stored in the current metacontext. Absent index information, metavariables print with the raw internal identifier as `?_mvar.nnn`. **Note:** The heartbeat counter also increases quicker due to counting allocations that record level metavariable indices. In some tests we needed to increase `maxHeartbeats` by 20–50% to compensate, without a corresponding slowdown.
24 lines
398 B
Text
24 lines
398 B
Text
/--
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error: Invalid projection: Type of
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x✝
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is not known; cannot resolve projection `1`
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---
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error: unsolved goals
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case refine'_1
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⊢ Sort ?u.4
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case refine'_2
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⊢ Sort ?u.3
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case refine'_3
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⊢ ?refine'_1
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case refine'_4
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⊢ ?refine'_1
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case refine'_5
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⊢ ¬(fun x => ?m.9) ?refine'_3 = (fun x => ?m.9) ?refine'_4
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-/
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#guard_msgs in
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example : False := by
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refine' absurd (congrArg (·.1) sorry) _
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