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author | Michaël Zasso <targos@protonmail.com> | 2017-12-22 16:53:42 +0100 |
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committer | Michaël Zasso <targos@protonmail.com> | 2018-01-11 09:48:05 +0100 |
commit | 3dc30632755713179f345f4af024bd904c6162d0 (patch) | |
tree | f28c4f6dd6dfc5992edf301449d1a371d229755b /tools/node_modules/eslint/lib/rules/default-case.js | |
parent | a2c7085dd4a8e60d1a47572aca8bb6fcb7a32f88 (diff) | |
download | android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.gz android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.bz2 android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.zip |
tools: move eslint from tools to tools/node_modules
This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.
Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Diffstat (limited to 'tools/node_modules/eslint/lib/rules/default-case.js')
-rw-r--r-- | tools/node_modules/eslint/lib/rules/default-case.js | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/lib/rules/default-case.js b/tools/node_modules/eslint/lib/rules/default-case.js new file mode 100644 index 0000000000..32cd8dfe49 --- /dev/null +++ b/tools/node_modules/eslint/lib/rules/default-case.js @@ -0,0 +1,90 @@ +/** + * @fileoverview require default case in switch statements + * @author Aliaksei Shytkin + */ +"use strict"; + +const DEFAULT_COMMENT_PATTERN = /^no default$/i; + +//------------------------------------------------------------------------------ +// Rule Definition +//------------------------------------------------------------------------------ + +module.exports = { + meta: { + docs: { + description: "require `default` cases in `switch` statements", + category: "Best Practices", + recommended: false + }, + + schema: [{ + type: "object", + properties: { + commentPattern: { + type: "string" + } + }, + additionalProperties: false + }] + }, + + create(context) { + const options = context.options[0] || {}; + const commentPattern = options.commentPattern + ? new RegExp(options.commentPattern) + : DEFAULT_COMMENT_PATTERN; + + const sourceCode = context.getSourceCode(); + + //-------------------------------------------------------------------------- + // Helpers + //-------------------------------------------------------------------------- + + /** + * Shortcut to get last element of array + * @param {*[]} collection Array + * @returns {*} Last element + */ + function last(collection) { + return collection[collection.length - 1]; + } + + //-------------------------------------------------------------------------- + // Public + //-------------------------------------------------------------------------- + + return { + + SwitchStatement(node) { + + if (!node.cases.length) { + + /* + * skip check of empty switch because there is no easy way + * to extract comments inside it now + */ + return; + } + + const hasDefault = node.cases.some(v => v.test === null); + + if (!hasDefault) { + + let comment; + + const lastCase = last(node.cases); + const comments = sourceCode.getCommentsAfter(lastCase); + + if (comments.length) { + comment = last(comments); + } + + if (!comment || !commentPattern.test(comment.value.trim())) { + context.report({ node, message: "Expected a default case." }); + } + } + } + }; + } +}; |