cdd982a030
This PR adds a `deprecated_syntax` command that marks syntax kinds as deprecated. When deprecated syntax is elaborated (in terms, tactics, or commands), a linter warning is emitted. The warning is also emitted during quotation precheck when a macro definition uses deprecated syntax in its expansion. The `deprecated_syntax` command takes a syntax node kind, an optional message, and a `(since := "...")` clause. Deprecation warnings correctly attribute the warning to macro call sites when the deprecated syntax is produced by macro expansion, including through nested macro chains. --------- Co-authored-by: Sebastian Ullrich <sebasti@nullri.ch>
32 lines
1.8 KiB
Text
32 lines
1.8 KiB
Text
deprecated_syntax.lean:9:7-9:26: warning: macro 'Lean.Parser.Term.paren' produces deprecated syntax 'Lean.Parser.Term.let_fun': use `have` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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have x := 1;
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x : Nat
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deprecated_syntax.lean:19:8-19:18: warning: macro 'termMy_wrapper' (expanded from 'Lean.Parser.Term.paren') produces deprecated syntax 'Lean.Parser.Term.let_fun': use `have` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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have x := 1;
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x : Nat
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deprecated_syntax.lean:29:19-29:29: warning: macro 'termInnerMacro' (expanded from 'termOuterMacro') produces deprecated syntax 'Lean.Parser.Term.let_fun': use `have` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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have x := 1;
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x : Nat
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42 : Nat
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deprecated_syntax.lean:44:21-44:29: warning: syntax 'tacticMyDepTac' has been deprecated: use `trivial` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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deprecated_syntax.lean:54:31-54:39: warning: quotation uses deprecated syntax 'termOldThing': use `42` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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deprecated_syntax.lean:71:0-71:8: warning: syntax 'commandMyDepCmd' has been deprecated: use `#check` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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42 : Nat
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deprecated_syntax.lean:77:0-77:12: warning: macro 'commandMyWrapperCmd' produces deprecated syntax 'commandMyDepCmd': use `#check` instead
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Note: This linter can be disabled with `set_option linter.deprecated.syntax false`
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42 : Nat
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42 : Nat
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deprecated_syntax.lean:84:0-84:39: warning: `deprecated_syntax` should specify the date or library version at which the deprecation was introduced, using `(since := "...")`
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