#guard_msgs command for testing commands

This module defines a command to test that another command produces the expected messages. See the docstring on the #guard_msgs command.

opaque guard_msgs.diff : Lean.Option Bool

inductive Lean.Elab.Tactic.GuardMsgs.SpecResult : Type

The decision made by a specification for a message.

• check: Lean.Elab.Tactic.GuardMsgs.SpecResult

  Capture the message and check it matches the docstring.

• drop: Lean.Elab.Tactic.GuardMsgs.SpecResult

  Drop the message and delete it.

• passthrough: Lean.Elab.Tactic.GuardMsgs.SpecResult

  Do not capture the message.

inductive Lean.Elab.Tactic.GuardMsgs.WhitespaceMode : Type

The method to use when normalizing whitespace, after trimming.

• exact: Lean.Elab.Tactic.GuardMsgs.WhitespaceMode

  Exact equality.

• normalized: Lean.Elab.Tactic.GuardMsgs.WhitespaceMode

  Equality after normalizing newlines into spaces.

• lax: Lean.Elab.Tactic.GuardMsgs.WhitespaceMode

  Equality after collapsing whitespace into single spaces.

inductive Lean.Elab.Tactic.GuardMsgs.MessageOrdering : Type

Method to use when combining multiple messages.

• exact: Lean.Elab.Tactic.GuardMsgs.MessageOrdering

  Use the exact ordering of the produced messages.

• sorted: Lean.Elab.Tactic.GuardMsgs.MessageOrdering

  Sort the produced messages.

def Lean.Elab.Tactic.GuardMsgs.parseGuardMsgsSpec (spec? : Option (Lean.TSyntax `Lean.guardMsgsSpec)) : Lean.Elab.Command.CommandElabM (Lean.Elab.Tactic.GuardMsgs.WhitespaceMode × Lean.Elab.Tactic.GuardMsgs.MessageOrdering × (Lean.Message → Lean.Elab.Tactic.GuardMsgs.SpecResult))

Parses a guardMsgsSpec.

• No specification: check everything.
• With a specification: interpret the spec, and if nothing applies pass it through.

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structure Lean.Elab.Tactic.GuardMsgs.GuardMsgFailure : Type

An info tree node corresponding to a failed #guard_msgs invocation, used for code action support.

• res : String

  The result of the nested command

instance Lean.Elab.Tactic.GuardMsgs.instTypeNameGuardMsgFailure : TypeName Lean.Elab.Tactic.GuardMsgs.GuardMsgFailure

Equations

• Lean.Elab.Tactic.GuardMsgs.instTypeNameGuardMsgFailure = Lean.Elab.Tactic.GuardMsgs.inst✝

def Lean.Elab.Tactic.GuardMsgs.revealTrailingWhitespace (s : String) : String

Makes trailing whitespace visible and protectes them against trimming by the editor, by appending the symbol ⏎ to such a line (and also to any line that ends with such a symbol, to avoid ambiguities in the case the message already had that symbol).

Equations

• Lean.Elab.Tactic.GuardMsgs.revealTrailingWhitespace s = ((s.replace "⏎\n" "⏎⏎\n").replace "\t\n" "\t⏎\n").replace " \n" " ⏎\n"

def Lean.Elab.Tactic.GuardMsgs.removeTrailingWhitespaceMarker (s : String) : String

Equations

• Lean.Elab.Tactic.GuardMsgs.removeTrailingWhitespaceMarker s = s.replace "⏎\n" "\n"

def Lean.Elab.Tactic.GuardMsgs.WhitespaceMode.apply (mode : Lean.Elab.Tactic.GuardMsgs.WhitespaceMode) (s : String) : String

Applies a whitespace normalization mode.

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def Lean.Elab.Tactic.GuardMsgs.MessageOrdering.apply (mode : Lean.Elab.Tactic.GuardMsgs.MessageOrdering) (msgs : List String) : List String

Applies a message ordering mode.

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def Lean.Elab.Tactic.GuardMsgs.elabGuardMsgs : Lean.Elab.Command.CommandElab

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def Lean.Elab.Tactic.GuardMsgs.guardMsgsCodeAction : Lean.CodeAction.CommandCodeAction

A code action which will update the doc comment on a #guard_msgs invocation.

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