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Assignment to method parameter

Reports assignment to method parameters.

While occasionally intended, this construct can be extremely confusing, and is often the result of a typo.

Example:

def m(a, b, c) { a = [] // warning }

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GroovyAssignmentToMethodParameter
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Groovy | Assignment issues

Availability

By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Groovy, 241.18072

Last modified: 18 June 2024