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helm-tree-sitter-rust.el
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helm-tree-sitter-rust.el
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;;; helm-tree-sitter-rust.el --- Helm interface for tree-sitter -*- lexical-binding: t -*-
;; Copyright (C) 2021 ~ 2022 Giedrius Jonikas <giedriusj1@gmail.com>
;; Author: Giedrius Jonikas <giedriusj1@gmail.com>
;; Version: 0.1.0
;; URL: https://gitlab.com/giedriusj1/helm-tree-sitter
;; Package-Requires: ((emacs "25.1") (helm "3.6.2") (tree-sitter "0.16.1"))
;; This program 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.
;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Simple helm interface to tree-sitter.
;;; Commentary:
;; Provides function for dealing with Rust code
;;; Code:
(require 'helm-tree-sitter-utils)
(defvar helm-tree-sitter-rust-candidate-producer
'(("use_declaration" . helm-tree-sitter-rust-use-declaration-fn)
("struct_item" . helm-tree-sitter-rust-struct-item-fn)
("function_item" . helm-tree-sitter-rust-function-definition-fn)
("impl_item" . helm-tree-sitter-rust-impl-item-fn)
("macro_definition" . helm-tree-sitter-rust-macro-definition-fn)))
(defun helm-tree-sitter-rust-use-declaration-fn (elem)
"Helm-tree-sitter handler for use_declaration nodes in Rust mode.
Argument ELEM is `helm-tree-sitter-core-elem' representing the node."
(unless (helm-tree-sitter-core-elem-p elem)
(signal 'wrong-type-argument (list 'helm-tree-sitter-core-elem-p elem)))
(concat
(helm-tree-sitter-utils-prepend-depth-if-needed elem)
(propertize "Use: "
'face 'italic)
(helm-tree-sitter-utils-get-node-text (helm-tree-sitter-core-elem-node elem))))
(defun helm-tree-sitter-rust-function-definition-fn (elem)
"Helm-tree-sitter handler for function_definition nodes in Rust mode.
Argument ELEM is `helm-tree-sitter-core-elem' representing the node."
(unless (helm-tree-sitter-core-elem-p elem)
(signal 'wrong-type-argument (list 'helm-tree-sitter-core-elem-p elem)))
(let* ((children-alist (helm-tree-sitter-utils-node-children-to-alist (helm-tree-sitter-core-elem-node elem)))
(visibility-modifier (helm-tree-sitter-utils-get-node-text (alist-get 'visibility_modifier children-alist)))
(identifier (helm-tree-sitter-utils-get-node-text (alist-get 'identifier children-alist)))
(type-identifier (helm-tree-sitter-utils-get-node-text (alist-get 'type_identifier children-alist)))
(parameters (helm-tree-sitter-utils-get-node-text (alist-get 'parameters children-alist))))
(concat
(helm-tree-sitter-utils-prepend-depth-if-needed elem)
(propertize "Fn: "
'face 'italic)
(helm-tree-sitter-utils-strip-newlines-and-whitespaces
(concat
(helm-tree-sitter-utils-append-space-if-not-empty visibility-modifier)
(helm-tree-sitter-utils-append-space-if-not-empty type-identifier)
identifier
parameters
(helm-tree-sitter-utils-prepend-if-not-empty type-identifier " -> "))))))
(defun helm-tree-sitter-rust-struct-item-fn (elem)
"Helm-tree-sitter handler for struct_item nodes in Rust mode.
Argument ELEM is `helm-tree-sitter-core-elem' representing the node."
(unless (helm-tree-sitter-core-elem-p elem)
(signal 'wrong-type-argument (list 'helm-tree-sitter-core-elem-p elem)))
(let* ((children-alist (helm-tree-sitter-utils-node-children-to-alist (helm-tree-sitter-core-elem-node elem)))
(identifier (helm-tree-sitter-utils-get-node-text (alist-get 'type_identifier children-alist))))
(concat
(helm-tree-sitter-utils-prepend-depth-if-needed elem)
(propertize "Struct: "
'face 'italic)
identifier)))
(defun helm-tree-sitter-rust-impl-item-fn (elem)
"Helm-tree-sitter handler for impl_item nodes in Rust mode.
Argument ELEM is `helm-tree-sitter-core-elem' representing the node."
(unless (helm-tree-sitter-core-elem-p elem)
(signal 'wrong-type-argument (list 'helm-tree-sitter-core-elem-p elem)))
(let* ((children-alist (helm-tree-sitter-utils-node-children-to-alist (helm-tree-sitter-core-elem-node elem)))
(identifier (helm-tree-sitter-utils-get-node-text (alist-get 'type_identifier children-alist))))
(concat
(helm-tree-sitter-utils-prepend-depth-if-needed elem)
(propertize "Impl: "
'face 'italic)
identifier)))
(defun helm-tree-sitter-rust-macro-definition-fn (elem)
"Helm-tree-sitter handler for macro_definition nodes in Rust mode.
Argument ELEM is `helm-tree-sitter-core-elem' representing the node."
(unless (helm-tree-sitter-core-elem-p elem)
(signal 'wrong-type-argument (list 'helm-tree-sitter-core-elem-p elem)))
(let* ((children-alist (helm-tree-sitter-utils-node-children-to-alist (helm-tree-sitter-core-elem-node elem)))
(identifier (helm-tree-sitter-utils-get-node-text (alist-get 'identifier children-alist))))
(concat
(helm-tree-sitter-utils-prepend-depth-if-needed elem)
(propertize "Macro: "
'face 'italic)
identifier)))
(provide 'helm-tree-sitter-rust)
;;; helm-tree-sitter-rust.el ends here