Robert J. Simmons 3bd1dd633f feat: identifier suggestions on some autobinding failures (#11621) ... This PR causes Lean to search through `@[suggest_for]` annotations on certain errors that look like unknown identifiers that got incorrectly autobound. This will correctly identify that a declaration of type `Maybe String` should be `Option String` instead. ## Example ``` example : Except String Unit := return .ok () ``` ``` Function expected at Result but this term has type ?m.1 Note: Expected a function because this term is being applied to the argument String Hint: The identifier `Result` is unknown, and Lean's `autoImplicit` option causes an unknown identifier to be treated as an implicitly bound variable with an unknown type. However, the unknown type cannot be a function, and a function is what Lean expects here. This is often the result of a typo or a missing `import` or `open` statement. Perhaps you meant `Except` in place of `Result`? ``` The last line is added by this PR.		2025-12-11 21:40:16 +00:00
..
Compiler	chore: remove IR elim dead branches (#11576)	2025-12-11 10:39:02 +00:00
Data	feat: ToJson and FromJson for String.Slice (#11548)	2025-12-08 10:19:42 +00:00
DocString	chore: minor String API improvements (#11439)	2025-12-01 11:44:14 +00:00
Elab	feat: identifier suggestions on some autobinding failures (#11621)	2025-12-11 21:40:16 +00:00
ErrorExplanations	chore: fix spelling (#11531)	2025-12-06 13:54:27 +00:00
Language	refactor: port shell option processing to Lean (v2) (#11434)	2025-12-02 17:41:51 +00:00
LibrarySuggestions	fix: improve "no library suggestions engine registered" error message (#11464)	2025-12-02 00:55:46 +00:00
Linter	feat: document that backward options may disappear (#11304)	2025-11-24 17:49:46 +00:00
Meta	fix: apply ring normalizer to equalities coming from grind to core to lia (#11613)	2025-12-11 14:32:54 +00:00
Parser	refactor: String functions foldr, all, any, contains to go trough String.Slice (#11357)	2025-11-25 15:42:43 +00:00
ParserCompiler	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
PrettyPrinter	refactor: deprecate String.posOf and variants in favor of unified String.find (#11276)	2025-11-23 18:39:53 +00:00
Server	chore: minor String API improvements (#11439)	2025-12-01 11:44:14 +00:00
Util	chore: fix spelling (#11531)	2025-12-06 13:54:27 +00:00
Widget	chore: rename String.Range to Lean.Syntax.Range (#10852)	2025-10-21 07:32:25 +00:00
AddDecl.lean	test: avoid testing colliding private inductives (#11041)	2025-11-01 11:47:52 +00:00
Attributes.lean	chore: fix spelling (#11531)	2025-12-06 13:54:27 +00:00
AuxRecursor.lean	perf: handle per-constructor noConfusion in toLCNF (#11566)	2025-12-10 09:03:55 +00:00
BuiltinDocAttr.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
Class.lean
Compiler.lean	chore: remove public section from end of files (#10684)	2025-10-06 13:30:48 +00:00
CoreM.lean	fix: teach Exception.isRuntime to detect nested errors (#11490)	2025-12-10 10:19:33 +00:00
Data.lean	chore: remove public section from end of files (#10684)	2025-10-06 13:30:48 +00:00
Declaration.lean	chore: >6 month old deprecations (#10969)	2025-10-26 22:48:41 +00:00
DeclarationRange.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
DefEqAttrib.lean
DocString.lean
Elab.lean	feat: with_weak_namespace command (#11338)	2025-11-25 02:37:40 +00:00
EnvExtension.lean	feat: shake import minimizer aware of the module system and arbitrary elaboration dependencies (#10575)	2025-09-28 16:00:00 +00:00
Environment.lean	perf: avoid blocking on proof elaboration in Environment.hasUnsafe (#11606)	2025-12-11 17:24:01 +00:00
ErrorExplanation.lean	chore: rename String.ValidPos to String.Pos (#11240)	2025-11-24 16:40:21 +00:00
ErrorExplanations.lean	feat: improve error messages for invalid field access (#11456)	2025-12-02 17:46:12 +00:00
Exception.lean	fix: teach Exception.isRuntime to detect nested errors (#11490)	2025-12-10 10:19:33 +00:00
Expr.lean	feat: @[suggest_for] attribute to inform replacements (#11367)	2025-12-04 13:20:37 +00:00
ExtraModUses.lean	feat: shake: make Mathlib-ready (#11496)	2025-12-05 09:37:58 +00:00
HeadIndex.lean
Hygiene.lean	chore: do not set unused Option.Decl.group (#11307)	2025-11-21 16:44:38 +00:00
IdentifierSuggestion.lean	feat: identifier suggestions on some autobinding failures (#11621)	2025-12-11 21:40:16 +00:00
ImportingFlag.lean
InternalExceptionId.lean	chore: reorganize Init imports around strings (#10289)	2025-09-07 17:09:14 +00:00
KeyedDeclsAttribute.lean	fix: some ExtraModUses (#10620)	2025-10-03 15:50:40 +00:00
LabelAttribute.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
Level.lean	fix: move the monad argument for ForIn, ForIn', and ForM (#10204)	2025-11-25 12:20:37 +00:00
LibrarySuggestions.lean	fix: make library suggestions available in module files (#11373)	2025-11-26 05:39:27 +00:00
Linter.lean	chore: remove public section from end of files (#10684)	2025-10-06 13:30:48 +00:00
LoadDynlib.lean	refactor: use String.Slice in String.take and variants (#11180)	2025-11-18 16:13:48 +00:00
LocalContext.lean	fix: move the monad argument for ForIn, ForIn', and ForM (#10204)	2025-11-25 12:20:37 +00:00
Log.lean	fix: teach Exception.isRuntime to detect nested errors (#11490)	2025-12-10 10:19:33 +00:00
Message.lean	fix: teach Exception.isRuntime to detect nested errors (#11490)	2025-12-10 10:19:33 +00:00
Meta.lean	feat: @[method_specs] to generate specification theorems from class instances (#10302)	2025-09-15 11:17:06 +00:00
MetavarContext.lean	fix: remove superfluous Monad instances from some spec lemmas (#10564) (#10618)	2025-09-29 15:02:43 +00:00
Modifiers.lean	chore: more module system fixes and refinements for finishing batteries port (#10819)	2025-10-21 08:19:50 +00:00
MonadEnv.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
Namespace.lean
Parser.lean	feat: hexnum parser (#10716)	2025-10-08 21:12:03 +00:00
ParserCompiler.lean	doc: correct typos in documentation and comments (#11465)	2025-12-02 06:38:05 +00:00
PrettyPrinter.lean	chore: do not set unused Option.Decl.group (#11307)	2025-11-21 16:44:38 +00:00
PrivateName.lean
ProjFns.lean	chore: delete obsolete C++ file (#11561)	2025-12-09 15:47:54 +00:00
ReducibilityAttrs.lean	feat: allow setting reducibilityCoreExt in async contexts (#11301)	2025-11-21 09:23:14 +00:00
Replay.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
ReservedNameAction.lean
ResolveName.lean	chore: more module system fixes and refinements for finishing batteries port (#10819)	2025-10-21 08:19:50 +00:00
Runtime.lean
ScopedEnvExtension.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
Server.lean	feat: revamp server logging (#10787)	2025-10-28 16:26:59 +00:00
Setup.lean	fix: symbol clashes between packages (#11082)	2025-11-19 02:24:44 +00:00
Shell.lean	refactor: port shell option processing to Lean (v2) (#11434)	2025-12-02 17:41:51 +00:00
Structure.lean	chore: remove redundant imports in core (#10750)	2025-10-16 20:27:46 +00:00
SubExpr.lean	refactor: use String.split instead of String.splitOn or String.splitToList (#11250)	2025-11-19 09:35:19 +00:00
Syntax.lean	fix: move the monad argument for ForIn, ForIn', and ForM (#10204)	2025-11-25 12:20:37 +00:00
ToExpr.lean	feat: support for Rat scientific literals (#10961)	2025-10-26 02:05:26 +00:00
ToLevel.lean
Util.lean	feat: instantiate tactic parameter optimizer (#10916)	2025-10-23 01:22:33 +00:00
Widget.lean	chore: remove public section from end of files (#10684)	2025-10-06 13:30:48 +00:00