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This PR adds a canonical syntax for linking to sections in the language reference along with formatting of examples in docstrings according to the docstring style guide. Docstrings are now pre-processed as follows: * Output included as part of examples is shown with leading line comment indicators in hovers * URLs of the form `lean-manual://section/section-id` are rewritten to links that point at the corresponding section in the Lean reference manual. The reference manual's base URL is configured when Lean is built and can be overridden with the `LEAN_MANUAL_ROOT` environment variable. This way, releases can point documentation links to the correct snapshot, and users can use their own, e.g. for offline reading. Manual URLs in docstrings are validated when the docstring is added. The presence of a URL starting with `lean-manual://` that is not a syntactically valid section link causes the docstring to be rejected. This allows for future extensibility to the set of allowed links. There is no validation that the linked-to section actually exists. To provide the best possible error messages in case of validation failures, `Lean.addDocString` now takes a `TSyntax ``docComment` instead of a string; clients should adapt by removing the step that extracts the string, or by calling the lower-level `addDocStringCore` in cases where the docstring in question is obtained from the environment and has thus already had its links validated. A stage0 update is required to make the documentation site configurable at build time and for releases. A local commit on top of a stage0 update that will be sent in a followup PR includes the configurable reference manual root and updates to the release checklist. --------- Co-authored-by: Marc Huisinga <mhuisi@protonmail.com>
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{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///home/mhuisi/Lean/lean4/tests/bench/identifier_completion.lean","languageId":"lean4","version":952,"text":"prelude\nimport Lean.AddDecl\n\nopen Lean\n\nset_option debug.skipKernelTC true\n\ndef buildSyntheticEnv : Lean.CoreM Unit := do\n for i in [0:100000] do\n let name := s!\"Long.And.Hopefully.Unique.Name.foo{i}\".toName\n addDecl <| Declaration.opaqueDecl {\n name := name\n levelParams := []\n type := .const `Nat []\n value := .const `Nat.zero []\n isUnsafe := false\n all := [name]\n }\n addDocStringCore name \"A synthetic doc-string\"\n\n#eval buildSyntheticEnv\n\n-- This will be quite a bit slower than the equivalent in a file that imports all of these decls,\n-- since we can pre-compute information about those imports.\n-- It still serves as a useful benchmark, though.\n#eval Long.And.Hopefully.Unique.Name.foo\n"},"dependencyBuildMode":"never"}} |