operator keyword.
By adding an operator modifier, you might allow consumers of a function for writing a more Kotlin-idiomatic code.
Example:
class Complex(val real: Double, val imaginary: Double) {
fun plus(other: Complex) =
Complex(real + other.real, imaginary + other.imaginary)
}
fun usage(a: Complex, b: Complex) {
a.plus(b)
}
A quick-fix is suggested to add the operator modifier keyword:
class Complex(val real: Double, val imaginary: Double) {
operator fun plus(other: Complex) =
Complex(real + other.real, imaginary + other.imaginary)
}
fun usage(a: Complex, b: Complex) {
a + b
}