Assignment to 'for' loop parameter

Last modified: 03 December 2024

Reports assignments to for loop parameters inside the for loop body.

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

Example:

for (value in [1, 2, 3]) {
    value = 4 // 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.

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

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Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Groovy, 243.23126