'copy' method of data class is called without named arguments
Reports calls to a data class' copy() method without named arguments.
As all arguments of the copy() function are optional, it might be hard to understand what properties are modified. Providing parameter names explicitly makes code easy to understand without navigating to the data class declaration.
Example:
data class User(val name: String, val age: Int)
fun copyUser(user: User): User {
return user.copy("John")
}
The quick-fix provides parameter names to all copy() arguments:
data class User(val name: String, val age: Int)
fun copyUser(user: User): User {
return user.copy(name = "John")
}
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.
CopyWithoutNamedArguments- 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.
Inspection Details | |
|---|---|
By default bundled with: | |
Can be installed with plugin: | Kotlin, 243.26483-IJ |
01 April 2025