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author | Yosuke Furukawa <yosuke.furukawa@gmail.com> | 2015-04-29 02:03:05 +0900 |
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committer | Yosuke Furukawa <yosuke.furukawa@gmail.com> | 2015-05-09 12:09:52 +0900 |
commit | f9dd34d301ab385ae316769b85ef916f9b70b6f6 (patch) | |
tree | 9ce5db7bdff46e587535de5549eef7e02656f5d8 /tools/eslint/lib/rules/no-dupe-keys.js | |
parent | 5883a59b21a97e8b7339f435c977155a2c29ba8d (diff) | |
download | android-node-v8-f9dd34d301ab385ae316769b85ef916f9b70b6f6.tar.gz android-node-v8-f9dd34d301ab385ae316769b85ef916f9b70b6f6.tar.bz2 android-node-v8-f9dd34d301ab385ae316769b85ef916f9b70b6f6.zip |
tools: replace closure-linter with eslint
PR-URL: https://github.com/iojs/io.js/pull/1539
Fixes: https://github.com/iojs/io.js/issues/1253
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Diffstat (limited to 'tools/eslint/lib/rules/no-dupe-keys.js')
-rw-r--r-- | tools/eslint/lib/rules/no-dupe-keys.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tools/eslint/lib/rules/no-dupe-keys.js b/tools/eslint/lib/rules/no-dupe-keys.js new file mode 100644 index 0000000000..522f6ace6d --- /dev/null +++ b/tools/eslint/lib/rules/no-dupe-keys.js @@ -0,0 +1,41 @@ +/** + * @fileoverview Rule to flag use of duplicate keys in an object. + * @author Ian Christian Myers + * @copyright 2013 Ian Christian Myers. All rights reserved. + * @copyright 2013 Nicholas C. Zakas. All rights reserved. + */ + +"use strict"; + +//------------------------------------------------------------------------------ +// Rule Definition +//------------------------------------------------------------------------------ + +module.exports = function(context) { + + return { + + "ObjectExpression": function(node) { + + // Object that will be a map of properties--safe because we will + // prefix all of the keys. + var nodeProps = Object.create(null); + + node.properties.forEach(function(property) { + var keyName = property.key.name || property.key.value, + key = property.kind + "-" + keyName, + checkProperty = (!property.computed || property.key.type === "Literal"); + + if (checkProperty) { + if (nodeProps[key]) { + context.report(node, "Duplicate key '{{key}}'.", { key: keyName }); + } else { + nodeProps[key] = true; + } + } + }); + + } + }; + +}; |