;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Pierre Langlois <pierre.langlois@gmx.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages tree-sitter)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix build-system cargo)
  #:use-module (guix build-system emacs)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system node)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (gnu packages algebra)
  #:use-module (gnu packages crates-graphics)
  #:use-module (gnu packages crates-io)
  #:use-module (gnu packages llvm)
  #:use-module (gnu packages node-xyz))

(define-public tree-sitter
  (package
    (name "tree-sitter")
    (version "0.19.5")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1qmb0sva28zv6r3c3j7xs9pc8bpwwhkb9vxxndw2zbdn9wkvmbmn"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f   ;; No check target.
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-before 'build 'set-cc
           (lambda _
             (setenv "CC" ,(cc-for-target))))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (lib (string-append out "/lib")))
               (setenv "PREFIX" out)
               (invoke "make" "install")))))))
    (home-page "https://tree-sitter.github.io/tree-sitter/")
    (synopsis "Incremental parsing system for programming tools")
    (description "Tree-sitter is a parser generator tool and an incremental
parsing library.  It can build a concrete syntax tree for a source file and
efficiently update the syntax tree as the source file is edited.

Tree-sitter aims to be:

@enumerate
@item General enough to parse any programming language.
@item Fast enough to parse on every keystroke in a text editor.
@item Robust enough to provide useful results even in the presence of syntax
errors.
@item Dependency-free so that the runtime library (which is written in pure C)
can be embedded in any application.
@end enumerate

This package includes the @code{libtree-sitter} runtime library.")
    (license license:expat)))

(define-public tree-sitter-cli
  (package (inherit tree-sitter)
    (name "tree-sitter-cli")
    (build-system cargo-build-system)
    (arguments
     `(;; Running test requires downloading fixtures, see the
       ;; script/fetch-fixtures script.
       #:tests? #f
       ;; FIXME: Installing the sources for the tree-sitter Rust bindings
       ;; doesn't work out of the box due to tree-sitter having multiple
       ;; Rust packages in the same repository (bindings and CLI).
       #:install-source? #f
       #:cargo-inputs
       (("rust-ansi-term" ,rust-ansi-term-0.12)
        ("rust-atty" ,rust-atty-0.2)
        ("rust-clap" ,rust-clap-2)
        ("rust-difference" ,rust-difference-2)
        ("rust-dirs" ,rust-dirs-3)
        ("rust-html-escape" ,rust-html-escape-0.2)
        ("rust-libloading" ,rust-libloading-0.7)
        ("rust-smallbitvec" ,rust-smallbitvec-2)
        ("rust-spin" ,rust-spin-0.7)
        ("rust-tiny-http" ,rust-tiny-http-0.8)
        ("rust-walkdir" ,rust-walkdir-2)
        ("rust-webbrowser" ,rust-webbrowser-0.5)
        ("rust-which" ,rust-which-4))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'delete-cargo.lock
           (lambda _ (delete-file "Cargo.lock")))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (bin (string-append out "/bin"))
                    (lib (string-append out "/lib")))
               (mkdir-p bin)
               (install-file "target/release/tree-sitter" bin)))))))
    (synopsis "Incremental parsing system for programming tools")
    (description "Tree-sitter is a parser generator tool and an incremental
parsing library.  It can build a concrete syntax tree for a source file and
efficiently update the syntax tree as the source file is edited.

Tree-sitter aims to be:

@enumerate
@item General enough to parse any programming language.
@item Fast enough to parse on every keystroke in a text editor.
@item Robust enough to provide useful results even in the presence of syntax
errors.
@item Dependency-free so that the runtime library (which is written in pure C)
can be embedded in any application.
@end enumerate

This package includes the @command{tree-sitter} command-line tool.")
    (license license:expat)))

(define-public rust-tree-sitter-0.19
  (package
    (name "rust-tree-sitter")
    (version "0.19.5")
    (source
      (origin
        (method url-fetch)
        (uri (crate-uri "tree-sitter" version))
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
          "1h6adq5kqf4izzsklch5lfxx2aisxga463zz7w44rgwnck16wwmd"))))
    (build-system cargo-build-system)
    (arguments
     `(#:tests? #f  ;; Running tests misinterprets comments as doc-tests.
       #:cargo-inputs
       (("rust-cc" ,rust-cc-1)
        ("rust-lazy-static" ,rust-lazy-static-1)
        ("rust-regex" ,rust-regex-1)
        ("rust-spin" ,rust-spin-0.7))))
    (home-page "https://tree-sitter.github.io/tree-sitter/")
    (synopsis "Rust bindings to the Tree-sitter parsing library")
    (description "This package provides Rust bindings to the Tree-sitter
parsing library.")
    (license license:expat)))

(define-public tree-sitter-c
  (package
    (name "tree-sitter-c")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-c")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1diys8yigvhm4ppbmp3a473yxjg2d5lk11y0ay7qprcz7233lakv"))))
    (build-system node-build-system)
    (native-inputs
     `(("tree-sitter-cli" ,tree-sitter-cli)
       ("node-nan" ,node-nan)))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; tree-sitter-cli is listed as a Node.js dependency, however the
         ;; node tree-sitter-cli package is just a wrapper which downloads a
         ;; tree-sitter binary, see
         ;; https://github.com/tree-sitter/tree-sitter/tree/master/cli/npm
         ;; Instead we remove it as a dependency so that we can use our own
         ;; tree-sitter package.
         (add-after 'unpack 'fix-configure
           (lambda _
             (with-atomic-file-replacement "package.json"
               (lambda (in out)
                 (use-modules ((guix build json)))
                 (let ((package-meta (read-json in)))
                   (assoc-remove! (assoc-ref package-meta "devDependencies")
                                  "tree-sitter-cli")
                   (write-json package-meta out))))))
         (add-before 'build 'set-cc
           (lambda _
             (setenv "CC" ,(cc-for-target))))
         (add-before 'build 'make-files-writable
           (lambda _
             (for-each make-file-writable (find-files "src" ".*"))))
         (add-after 'install 'install-native-lib
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((lib (string-append (assoc-ref outputs "out")
                                       "/lib/tree-sitter")))
               ;; Invoking `tree-sitter test' loads the grammar which
               ;; compiles it to a .so binary that we install.
               (invoke "tree-sitter" "test")
               (mkdir-p lib)
               (copy-recursively (string-append (getenv "HOME")
                                                "/.tree-sitter/bin")
                                 lib)))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-c")
    (synopsis "Tree-sitter C grammar")
    (description
      "This package provides a C grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-cpp
  (package (inherit tree-sitter-c)
    (name "tree-sitter-cpp")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-cpp")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "08ywv6n80sa541rr08bqz4zyg7byvjcabp68lvxmcahjk8xzcgwk"))))
    (native-inputs
     `(("tree-sitter-cli" ,tree-sitter-cli)
       ("tree-sitter-c" ,tree-sitter-c)
       ("node-nan" ,node-nan)))
    (home-page "https://github.com/tree-sitter/tree-sitter-cpp")
    (synopsis "Tree-sitter C++ grammar")
    (description
      "This package provides a C++ grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-bash
  (package (inherit tree-sitter-c)
    (name "tree-sitter-bash")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-bash")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "18c030bb65r50i6z37iy7jb9z9i8i36y7b08dbc9bchdifqsijs5"))))
    (native-inputs
     `(("tree-sitter-cli" ,tree-sitter-cli)
       ("node-nan" ,node-nan)))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
          ;; The `prebuild' dependency is a way to intercept the build step
          ;; and download a prebuilt binary instead.  If we remove it then the
          ;; buid system falls back to building from source.
          (add-after 'unpack 'remove-prebuild-dependency
            (lambda _
              (with-atomic-file-replacement "package.json"
                (lambda (in out)
                  (use-modules ((guix build json)))
                  (let ((package-meta (read-json in)))
                    (assoc-remove! (assoc-ref package-meta "dependencies")
                                   "prebuild-install")
                    (assoc-remove! (assoc-ref package-meta "devDependencies")
                                   "prebuild")
                    (write-json package-meta out))))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-bash")
    (synopsis "Tree-sitter Bash grammar")
    (description
      "This package provides a Bash grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-css
  (package (inherit tree-sitter-c)
    (name "tree-sitter-css")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-css")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "014jrlgi7zfza9g38hsr4vlbi8964i5p7iglaih6qmzaiml7bja2"))))
    (home-page "https://github.com/tree-sitter/tree-sitter-css")
    (synopsis "Tree-sitter CSS grammar")
    (description
      "This package provides a CSS grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-go
  (package (inherit tree-sitter-c)
    (name "tree-sitter-go")
    (version "0.19.1")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-go")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "0nxs47vd2fc2fr0qlxq496y852rwg39flhg334s7dlyq7d3lcx4x"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-go")
    (synopsis "Tree-sitter Go grammar")
    (description
      "This package provides a Golang grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-html
  (package (inherit tree-sitter-c)
    (name "tree-sitter-html")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-html")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1hg7vbcy7bir6b8x11v0a4x0glvqnsqc3i2ixiarbxmycbgl3axy"))))
    (home-page "https://github.com/tree-sitter/tree-sitter-html")
    (synopsis "Tree-sitter HTML grammar")
    (description
      "This package provides a HTML grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-java
  (package (inherit tree-sitter-c)
    (name "tree-sitter-java")
    (version "0.19.1")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-java")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "07zw9ygb45hnvlx9qlz7rlz8hc3byjy03d24v72i5iyhpiiwlhvl"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-java")
    (synopsis "Tree-sitter Java grammar")
    (description
      "This package provides a Java grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-javascript
  (package (inherit tree-sitter-c)
    (name "tree-sitter-javascript")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-javascript")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "063va0s727yzhy1cz04fipzwwbq4af6fhgka6g970hk9yf7ggmnj"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-javascript")
    (synopsis "Tree-sitter Javascript grammar")
    (description
      "This package provides a Javascript grammar for the Tree-sitter
library.")
    (license license:expat)))

(define-public tree-sitter-json
  (package (inherit tree-sitter-c)
    (name "tree-sitter-json")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-json")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "06pjh31bv9ja9hlnykk257a6zh8bsxg2fqa54al7qk1r4n9ksnff"))))
    (home-page "https://github.com/tree-sitter/tree-sitter-json")
    (synopsis "Tree-sitter JSON grammar")
    (description
      "This package provides a JSON grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-julia
  (package (inherit tree-sitter-c)
    (name "tree-sitter-julia")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-julia")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1pbnmvhy2gq4vg1b0sjzmjm4s2gsgdjh7h01yj8qrrqbcl29c463"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-julia")
    (synopsis "Tree-sitter Julia grammar")
    (description
      "This package provides a Julia grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-php
  (package (inherit tree-sitter-c)
    (name "tree-sitter-php")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-php")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
           "17cmybgpprw7w9d2v7lmc6zmr90d70g0jqq279gzg0mpwfzla53s"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-php")
    (synopsis "Tree-sitter PHP grammar")
    (description
      "This package provides a PHP grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-python
  (package (inherit tree-sitter-c)
    (name "tree-sitter-python")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-python")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "04b85qxqs64x6nhbpcgrzkbilxaiwvr9yd3h065rynv7rsdg0hii"))))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-python")
    (synopsis "Tree-sitter Python grammar")
    (description
      "This package provides a Python grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-rust
  (package (inherit tree-sitter-c)
    (name "tree-sitter-rust")
    (version "0.19.1")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-rust")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "118vkhv7n3sw8y9pi0987cgdcd74sjqwviijw01mhnk3bkyczi3l"))))
    (native-inputs
     `(("bc" ,bc)
       ("tree-sitter-cli" ,tree-sitter-cli)
       ("node-nan" ,node-nan)))
    (home-page "https://github.com/tree-sitter/tree-sitter-rust")
    (synopsis "Tree-sitter Rust grammar")
    (description
      "This package provides a Rust grammar for the Tree-sitter library.")
    (license license:expat)))

(define-public tree-sitter-typescript
  (package (inherit tree-sitter-c)
    (name "tree-sitter-typescript")
    (version "0.19.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/tree-sitter/tree-sitter-typescript")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "01pkmwwmbv6kxda0n6g4cfg72ldmpi9gmp11a5gygn472vhrh2xw"))))
    (native-inputs
     `(("tree-sitter-cli" ,tree-sitter-cli)
       ("tree-sitter-javascript" ,tree-sitter-javascript)
       ("node-nan" ,node-nan)))
    (arguments
     (substitute-keyword-arguments (package-arguments tree-sitter-c)
      ((#:phases phases)
       `(modify-phases ,phases
         ;; The parse-example script tries to clone git repositories.
         (add-after 'unpack 'remove-parse-example
           (lambda _
             (substitute* "package.json"
               ((" && script\\/parse-examples") ""))))
         (add-after 'build 'build-gyp
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((node (assoc-ref inputs "node")))
               (invoke (string-append node "/lib/node_modules/npm/node_modules"
                                           "/node-gyp/bin/node-gyp.js")
                       "build"))))
         (replace 'make-files-writable
           (lambda _
             (for-each make-file-writable
                       (find-files "typescript" ".*"))
             (for-each make-file-writable
                       (find-files "tsx" ".*"))))
         (replace 'install-native-lib
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((lib (string-append (assoc-ref outputs "out")
                                       "/lib/tree-sitter")))
               ;; Invoking `tree-sitter test' loads the grammar which
               ;; compiles it to a .so binary that we install.
               (with-directory-excursion "typescript"
                 (invoke "tree-sitter" "test"))
               (with-directory-excursion "tsx"
                 (invoke "tree-sitter" "test"))
               (mkdir-p lib)
               (copy-recursively (string-append (getenv "HOME")
                                                "/.tree-sitter/bin")
                                 lib))))))))
    (home-page "https://github.com/tree-sitter/tree-sitter-typescript")
    (synopsis "Tree-sitter Typescript grammar")
    (description
      "This package provides Typescript and TSX grammars for the Tree-sitter
library.")
    (license license:expat)))

;; Local package definition solely for building the native emacs module
;; written in Rust.
(define tree-sitter-emacs-module
  (package
    (name "tree-sitter-emacs-module")
    (version "0.15.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/emacs-tree-sitter/elisp-tree-sitter")
                    (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "15y0wjnck8rbfhl0xrl71ci7clbcp11lhqil5l8ykprsdjv0c2as"))))
    (build-system cargo-build-system)
    (inputs
     `(("clang" ,clang)))
    (arguments
     `(#:cargo-inputs
       (("rust-anyhow" ,rust-anyhow-1)
        ("rust-emacs" ,rust-emacs-0.17)
        ("rust-libloading" ,rust-libloading-0.7)
        ("rust-once-cell" ,rust-once-cell-1)
        ("rust-tree-sitter" ,rust-tree-sitter-0.19))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'delete-cargo.lock
           (lambda _ (delete-file "Cargo.lock")))
         (add-after 'delete-cargo.lock 'do-not-fetch-from-github
           (lambda _
             (substitute* "Cargo.toml"
               (("\\[patch.*") "")
               (("git = .*") ""))))
         (add-after 'do-not-fetch-from-github 'chdir
           (lambda _ (chdir "core")))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((lib (string-append (assoc-ref outputs "out") "/lib")))
               (install-file "../target/release/libtsc_dyn.so" lib)))))))
    (home-page #f)
    (synopsis #f)
    (description #f)
    (license license:expat)))

(define-public emacs-tree-sitter-core
  (package
    (name "emacs-tree-sitter-core")
    (version (package-version tree-sitter-emacs-module))
    (source (package-source tree-sitter-emacs-module))
    (build-system emacs-build-system)
    (native-inputs
     `(("tree-sitter-emacs-module" ,tree-sitter-emacs-module)))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'chdir
           (lambda _ (chdir "core")))
         (add-after 'install 'install-module
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((elpa (elpa-directory (assoc-ref outputs "out")))
                   (module (string-append (assoc-ref inputs "tree-sitter-emacs-module")
                                          "/lib/libtsc_dyn.so")))
               ;; Writing "LOCAL" in this file prevents the package from
               ;; trying to download the module from the internet.
               (call-with-output-file (string-append elpa "/DYN-VERSION")
                 (lambda (port) (display "LOCAL" port)))
               (substitute* "tsc-dyn-get.el"
                 (("defcustom tsc-dyn-dir tsc--dir")
                  (string-append "defcustom tsc-dyn-dir \"" elpa "\"")))
               (copy-file module (string-append elpa "/tsc-dyn.so"))))))))
    (home-page "https://github.com/emacs-tree-sitter/elisp-tree-sitter")
    (synopsis "Tree-sitter bindings for Emacs Lisp, core library")
    (description "This package provides core APIs of the Emacs binding for
Tree-sitter, an incremental parsing system.")
    (license license:expat)))