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f0b987c32c
Don't signal an error when encountering invalid rust syntax. Without this patch, invalid rust code would prevent a chunk of the buffer from being highlighted (bug#79272). * lisp/progmodes/rust-ts-mode.el (rust-ts-mode--fontify-scope): (rust-ts-mode--fontify-pattern): Avoid calling `string-match-p' on nil when a node is missing a parent. * test/lisp/progmodes/rust-ts-mode-resources/font-lock-no-parent.rs: Rust file that reproduces the issue. * test/lisp/progmodes/rust-ts-mode-tests.el: Test case to reproduce the issue.
51 lines
1.8 KiB
EmacsLisp
51 lines
1.8 KiB
EmacsLisp
;;; rust-ts-mode-tests.el --- Tests for rust-ts-mode -*- lexical-binding: t; -*-
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;; Copyright (C) 2023-2025 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Code:
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(require 'ert)
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(require 'ert-font-lock)
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(require 'ert-x)
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(require 'treesit)
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(require 'rust-ts-mode)
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(ert-deftest rust-ts-test-font-lock ()
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(skip-unless (treesit-ready-p 'rust))
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(let ((treesit-font-lock-level 4)
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(rust-ts-mode-fontify-number-suffix-as-type nil))
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(ert-font-lock-test-file (ert-resource-file "font-lock.rs")
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'rust-ts-mode)))
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(ert-deftest rust-ts-test-font-lock-number ()
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(skip-unless (treesit-ready-p 'rust))
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(let ((treesit-font-lock-level 4)
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(rust-ts-mode-fontify-number-suffix-as-type t))
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(ert-font-lock-test-file (ert-resource-file "font-lock-number.rs")
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'rust-ts-mode)))
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(ert-deftest rust-ts-test-no-parent ()
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(skip-unless (treesit-ready-p 'rust))
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(let ((treesit-font-lock-level 4)
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(rust-ts-mode-fontify-number-suffix-as-type t))
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(ert-font-lock-test-file (ert-resource-file "font-lock-no-parent.rs")
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'rust-ts-mode)))
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(provide 'rust-ts-mode-tests)
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;;; rust-ts-mode-tests.el ends here
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