https://github.com/jetbrains/resharper-cyclomatic-complexity

ReSharper plugin to measure cyclomatic complexity as you type
https://github.com/jetbrains/resharper-cyclomatic-complexity

cyclomatic-complexity jetbrains plugin resharper resharper-plugin

Last synced: 5 days ago
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ReSharper plugin to measure cyclomatic complexity as you type

• Host: GitHub
• URL: https://github.com/jetbrains/resharper-cyclomatic-complexity
• Owner: JetBrains
• License: apache-2.0
• Created: 2015-08-26T08:44:54.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2025-01-17T15:10:33.000Z (about 1 month ago)
• Last Synced: 2025-02-16T20:55:30.414Z (5 days ago)
• Topics: cyclomatic-complexity, jetbrains, plugin, resharper, resharper-plugin
• Language: C#
• Size: 6.86 MB
• Stars: 123
• Watchers: 24
• Forks: 15
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
[![official JetBrains project](http://jb.gg/badges/official-flat-square.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)

[![Rider](https://img.shields.io/jetbrains/plugin/v/10395-cyclomatic-complexity.svg?label=rider%20&colorB=0A7BBB&style=flat-square&logo=%20data%3Aimage%2Fpng%3Bbase64%2CiVBORw0KGgoAAAANSUhEUgAAADAAAAAsCAYAAAAjFjtnAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAZdEVYdFNvZnR3YXJlAHBhaW50Lm5ldCA0LjAuMjHxIGmVAAAEEklEQVRoQ%2B2ZS0hUURjHLSoKominVIta1aLaFYhBES1t1bLFRCAREbQKaiHpqgeEpjDjRhIFHWwzIyo6oWXqwmfkW0evr9TxNT7GcZxX%2FzPzzZk53jsyc%2B91I%2FcHB4a5%2F%2B%2B79z%2Fn3O98RzOOBKFQ6BeGlOrw%2B%2F2S0%2Bn83dXV9a6srOwSpUlKfX19yvnn5%2BelwcFBW09Pz8uamporlOJgEOgMq2R7ezuAm33Cx%2BOUTgYMqMq%2Ft7cX7O3t7QbXKJUyWgzEWFhYaMONTlJKAbUGYvh8vjBymy0Wi2J%2BXQwwxsbGvlFKAa0GGHjG8Nra2nd8lM%2B0kgGPx9OK76sSx9LSkgNrfyMQCOySTAAxodLS0uuUlqNkAPnG9%2BdfWVlxLC8vs%2FxBkskYHx%2B3Udo4CJbdoKqqKpcuy8DLmzU3N%2FeTpAJTU1MfSMZRMoBCYKHLMhwOx12YacBzkVpkeHjYRNIo6RpgsPXodrtdJOdgvdpJwknXQIyRkZE3mA2KiIP7LqJCnSGZOgMM3MBOcg5y6WaAsb6%2B%2Fp5CBDo7O5%2BSRL0BTOWhG2hpaTnt9Xr%2FURhndna2lSTqDWxtbUkk50xOTupqgDE9PV1AYZzV1VVXXl5etKyma6C8vDwTJa2GpALY1J6QjKPVAGY6l8I4mJVwR0dH9D1QMtDW1ubCjaXE0dDQIA0MDEj45f0kE0DlmMeUn4gkTUCrgYqKCpkBxszMTHID6YJq4cVU50QS7kOrAZvNJjOAZ9bPAHoWT3Nz84tIMgW0GsC%2B84rCOFjCYV5K1RpgPQo2tKbi4uLbkURJ0GoALUo3hXHQRP7BpWMRgZIBrGcPpmgjNjY3N2XtA16knb6%2BvouRJAegxUB1dXVuMCjvLCYmJspIomwA3wlVqL29PXt3d1e2t6MeD%2BTn58te3ETUGkDByMTyHKMQDmL9drv9FslSM8DAzvuRLgtgjX4miSJqDOCdugfNKMkFJElqIlmUVA0w0PdPkISDmQk3NjZmk0SGkgF0tq2VlZWm2ECpNFmtVtPi4uJzLN8fuD8pRdBa%2BIaGhrIodZR0DKCk5WBafSTj4IEmMeWnSCagZEANmBEPVsEDShsnHQOM%2Fv7%2BLyQTQPKvJBHQwwCqjhet%2Bn1KKZKuAfQg51GH%2F5KUw5bS6OjoHZJxtBjAr876q14ssxuUTk66Bhg4dNzECYzUcbAv7KCPukCyCGoMIPcaGjYrK6NIEa33ycBb%2FRhtgClx4EEu0%2BWkoPo83B%2FHBo59QqzZbH4LE7UHjbq6ulpsjM9QJEwFBQWPlHoqAwMDAwMDAwODo0hJScnZoqKic3oOHPST%2Fs9Md1wulxMjrNfAuZYdbK5S%2BsNH6UCjBfZ3HJgwDKQMDLzGKNRrwECh2%2B0WjpUGimRk%2FAdgThdOY4UJ9QAAAABJRU5ErkJggg%3D%3D)](https://plugins.jetbrains.com/plugin/10395-cyclomatic-complexity)

[![ReSharper](https://img.shields.io/resharper/v/PowerToys.CyclomaticComplexity.svg?label=resharper%20&colorB=0A7BBB&style=flat-square&logo=%20data%3Aimage%2Fpng%3Bbase64%2CiVBORw0KGgoAAAANSUhEUgAAADIAAAAxCAYAAACYq%2FofAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAZdEVYdFNvZnR3YXJlAHBhaW50Lm5ldCA0LjAuMjHxIGmVAAAE%2BElEQVRoQ%2B2Ya0hkZRzG3d1oWehLLQS2QRC1tEWflhLqU0QgsbAb6ZesiL5KXxKE3GBa86uE0IdWiTJq8BLGMiqapnjDYfAy3jCv6XgfZC7explxnJ73zDPvnOM7M%2BtlslrOD%2F7InOc5%2F%2Ff8z3mvZplkgJKSkuzS0tIb8bBYLC9RMoDr1%2FW%2B4uLiG5RUDg8PFxCek4Tf7%2Fe4XK7W0dHRosbGxieZ6tg4nU7%2F3t5eNB67u7tBSpK8vLwr29vbXr1veno6Ci7QYgSCT6inJRQK7UxNTd3F23ucKR%2FGBbyMAG%2FXWFpaClCT2Gy2F4PBIB0x0FYbZRXoZyokzszMTFdtbe0Vpk1JTU3NawcHB7wrBn7XU5a0tLS8Q1kyNDRko6wCPSOFCCYnJ2uYNiXLy8tv0y4ZHx%2F%2FnrIEL6aIsmRlZeUzyirQM1YI3mxodXX1OaZOCvr517RLPB7PR5QlGH9WyhIM%2BDzKKtCVQtCHf8Cfi0ejsLDwGfTdj2dnZ23hcPgQ1xRQSAVTayDXbYQ1Hmtra7u0SlDc4djYWEQfW1tbVBNMTExoWldX1wzTJ4CetBDKKbHb7Rb4eEeCjY2NOVo04PmCUsbAyzC0oYHrpyokNzf3Mvp7mLdIcO%2F%2FqxAButdPvEVyHoWg3cwWgi8yy1skSQr5HOEXEYlEDOuHAIteAN3Rrw8Qoizx%2BXzbcd3tdjuZPoHwxKwJjlNIX1%2FfG3gwZZBgsI%2FSooAuoXyd9vb2IsoSDOp6yhp4nmggEHiBcnLgO1EhdXV1l3p7ewuwrdik3QC%2B0pe0KmBK7aFNQzzg8PDwNcoSfJE%2FaNHA9iRUWVn5LOXkwKcUsrm5GcEqGjwaIyMjwZ2dnaB4gGSguHB1dfV1pjaQn59%2Fyev1TtCqgd%2FRqqqqp2iRrK%2Bv0xFjf39%2FlVJq4FMKOQ3oZtH%2B%2Fv57TKsgti94QXTHwKCdpCzBzvgaZQm%2Bsp1yauA7cyFic4civmXKpGBVfpV2CRZCB2XJ4OBgLmUJvtx3lFMD35kKwf5nrbOz8w5SKdtrdMGfEZsi8Pa3eYsE1%2Ffiui6UJV3MdnF9YWHhPtMbge%2FUhSwuLkYKCgqymUoBDT%2BgNWOgkF%2BY3gg0pRDMEn%2FOzc3d1we6zwZlA5gqq5lK4V8vBA%2BgTL%2BYJt%2FD9QgtEnSZcFtb2y3aDPwnCxHMz88bFqo4WHVXm5ubL9MmQZ4yRAdW7yFaJVjgQkLTB44BDsoSjA%2B33oMZ7C7TG4H32IWUlZVlo9st0WYAx9UfaVMoLy9%2FCznpjIFV%2FnfKku7u7luUJVi7fqWcHniPXYgAjd1Bb6IzgVhHcFb5lDYD2La8S5sEC6zSBh76K8oSLMCfUE4PvCcqxGKxXMTgV05vAhyGvHj7ypYDW5NvaJFg2v6AsgRH3t8oSyoqKm5TTg%2B8JypE0NDQcBVvWVkXBCiylTYJthx1lCXYmrxJWYKd7V%2BUNfhflMcopwfGExciwEz1figUEud0Q4hrDofjQ9o0XC6XT%2B%2FBnixKSYJj9FVMGjt6Hwa2W%2BzRaEkPnvsmHjxHH7j2POW04Mu83tHRkXM0rFbrK7Ro9PT03NTr9fX1OZQk4v9ira2thjzY4r9M2cTExMTExMTExMTkEaSpqemB3W5fznTg2LrMJs6HgYEB5YSYKdjE%2BfDIFOJ0Ol1sN%2BOwifMB7T2Bc%2FrT%2F0SwCZOHk5X1N%2Fu%2FydjP06PFAAAAAElFTkSuQmCC)](https://resharper-plugins.jetbrains.com/packages/PowerToys.CyclomaticComplexity/)

# Cyclomatic complexity plugin for ReSharper

This is a ReSharper plugin that measures [cyclomatic complexity](https://en.wikipedia.org/wiki/Cyclomatic_complexity) as you type. If the complexity of a method, function or property exceeds a configurable threshold, the method, function or property is marked with a warning highlight ("squiggly"). Supported languages are C#, VB, JavaScript, TypeScript and C++. 

It can be installed by going to **ReSharper → Extensions Manager** and searching for "Cyclomatic Complexity".

Cyclomatic complexity is a metric intended to show the complexity of your code. It measures the number of paths through a code block - the more branches and conditional statements, the higher the metric. As the code gets more complex, the metric gets higher. A higher value is a good indicator that a method is getting too complex, and is becoming a maintainability risk, and should be refactored. You can read more about [cyclomatic complexity at wikipedia](https://en.wikipedia.org/wiki/Cyclomatic_complexity).

The complexity of a method, function or other code member is always available as a tooltip on the method name:

![Complexity displayed as an info tooltip](docs/info.png)

When the complexity reaches a configurable threshold, the tooltip is shown as a warning:

![Complexity exceeds the configurable threshold](docs/warning.png)

And the complexity threshold can be configured in the options, per language:

![Options](docs/options.png)