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Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Wojciech Nawrocki ec59e7a2c0
feat: widget messages (#4254) 
Allows embedding user widgets in structured messages. Companion PR is
leanprover/vscode-lean4#449.

Some technical choices:
- The `MessageData.ofWidget` constructor might not be strictly necessary
as we already have `MessageData.ofFormatWithInfos`, and there is
`Info.ofUserWidget`. However, `.ofUserWidget` also requires a `Syntax`
object (as it is normally produced when widgets are saved at a piece of
syntax during elaboration) which we do not have in this case. More
generally, it continues to be a bit cursed that `Elab.Info` nodes are
used both for elaboration and delaboration (pretty-printing), so
entrenching that approach seems wrong. The better approach would be to
have a separate notion of pretty-printer annotation; but such a refactor
would not be clearly beneficial right now.
- To support non-JS-based environments such as
https://github.com/Julian/lean.nvim, `.ofWidget` requires also providing
another message which approximates the widget in a textual form.
However, in practice these environments might still want to support a
few specific user widgets such as "Try this".

---

Closes #2064.
2024-05-29 06:37:42 +00:00
.github chore: CI: restore macOS aarch64 install sufix 2024-05-26 14:29:56 +02:00
doc chore: CI: native-compile aarch64 macOS (#4265) 2024-05-24 08:18:49 +00:00
images chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean 2015-01-31 17:38:49 -08:00
nix feat: incremental elaboration of definition headers, bodies, and tactics (#3940) 2024-05-22 13:23:30 +00:00
releases_drafts chore: set up procedure for preparing release notes (#4247) 2024-05-23 02:46:11 +00:00
script chore: add ./script/rebase-stage0.sh (#3984) 2024-05-02 12:26:25 +00:00
src feat: widget messages (#4254) 2024-05-29 06:37:42 +00:00
stage0 chore: update stage0 2024-05-28 23:04:19 +02:00
tests fix: stray tokens in tactic block should not inhibit incrementality (#4268) 2024-05-27 07:36:13 +00:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore chore: update tests to account for .lake 2023-11-13 20:31:24 -05:00
.ignore chore: ignore stage0/ (for rg etc.) 2022-03-18 15:28:20 +01:00
CMakeLists.txt chore: update-stage0-commit cmake target (#3692) 2024-04-04 13:35:53 +00:00
CMakePresets.json chore: modernize build instructions (#4032) 2024-05-23 10:55:07 +00:00
CODEOWNERS chore: update code owners 2024-04-24 10:16:16 +02:00
CONTRIBUTING.md doc: Adjust contributor's docs to squash merging (#2927) 2023-11-21 10:13:43 +00:00
flake.lock chore: test results as job summary (#3715) 2024-03-27 10:14:33 +00:00
flake.nix chore: replace shell.nix with a devShell in flake.nix (#3717) 2024-03-21 13:24:01 +00:00
lean-toolchain doc: VS Code dev setup (#2961) 2023-11-30 08:35:03 +00:00
lean.code-workspace chore: add the lean4 extension to the vscode workspace (#3059) 2023-12-14 08:58:21 +00:00
LICENSE chore: remove LICENSE header that confused GitHub 2021-11-18 09:42:35 +01:00
LICENSES chore: add GMP license for now 2021-11-18 09:42:35 +01:00
README.md doc: mention build doc source location (#4045) 2024-05-01 22:42:54 +00:00
RELEASES.md chore: set up procedure for preparing release notes (#4247) 2024-05-23 02:46:11 +00:00

README.md

This is the repository for Lean 4.

About

Installation

See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean (documentation source: doc/make/index.md).