Alexey Tsvetkov
39 lines
964 B
Kotlin
39 lines
964 B
Kotlin
package foo
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native
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fun String.charCodeAt(i: Int): Int = noImpl
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// Because String in JS doesn't have hashCode method
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fun String.myHashCode(): Int {
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var hash = 0
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for (i in 0..size - 1) {
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hash = 31 * hash + charCodeAt(i)
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}
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return hash
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}
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class Foo(val name: String) {
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override fun equals(other: Any?): Boolean {
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if (other is Foo) return name == other.name
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return this identityEquals other
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}
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override fun hashCode(): Int = name.myHashCode()
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override fun toString(): String = "Foo($name)"
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}
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fun box(): String {
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val james = Foo("James")
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val anotherJames = Foo("James")
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val max = Foo("Max")
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assertEquals(true, james == anotherJames)
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assertEquals(false, james == max)
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assertEquals("James".myHashCode(), james.hashCode())
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assertEquals("Max".myHashCode(), max.hashCode())
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assertEquals("Foo(James)", james.toString())
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assertEquals("Foo(Max)", max.toString())
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return "OK"
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} |