Ilya Gorbunov
92 lines
2.8 KiB
Kotlin
Vendored
92 lines
2.8 KiB
Kotlin
Vendored
package foo
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public fun equals(a: Any?): Boolean = true
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public fun hashCode(): Int = 0
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public fun toString(): String = ""
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public class PublicClass {
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override fun equals(a: Any?): Boolean = this === a
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override fun hashCode(): Int = 0
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override fun toString(): String = "PublicClass"
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}
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internal class InternalClass {
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override fun equals(a: Any?): Boolean = this === a
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override fun hashCode(): Int = 1
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override fun toString(): String = "InternalClass"
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// overloads
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public fun equals(a: Any?, b: Any?): Boolean = a == b
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public fun hashCode(i: Int): Int = i
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public fun toString(s: String): String = s
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}
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private class PrivateClass {
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override fun equals(a: Any?): Boolean = this === a
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override fun hashCode(): Int = 2
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override fun toString(): String = "InternalClass"
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// overloads
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public fun equals(a: Any?, b: Any?): Boolean = a == b
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public fun hashCode(i: Int): Int = i
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public fun toString(s: String): String = s
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}
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// Helpers
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val CALEE_NAME = RegExp("""((?:equals|hashCode|toString)[^(]*)""")
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fun <T> Function0<T>.extractNames(): Array<String> {
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val names = CALEE_NAME.exec(this.toString())
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if (names == null || names.size != 2) {
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throw Exception("Cannot extract function name, $names for actual = \"$this\"")
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}
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return names
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}
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// Testing
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var testGroup = ""
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fun test(expected: String, f: () -> Unit) {
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val actual = f.extractNames()
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if (expected != actual[1]) {
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throw Exception("Failed on '$testGroup' group: expected = \"$expected\", actual[1] = \"${actual[1]}\"\n actual = $actual")
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}
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}
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val SIMPLE_EQUALS = "equals"
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val SIMPLE_HASH_CODE_1 = "hashCode_1"
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val SIMPLE_TO_STRING_1 = "toString_1"
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val STABLE_EQUALS = { equals(0) }.extractNames()[1]
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val STABLE_HASH_CODE = { hashCode() }.extractNames()[1]
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val STABLE_TO_STRING = { toString() }.extractNames()[1]
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fun box(): String {
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testGroup = "Public Class"
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test(STABLE_EQUALS) { PublicClass().equals(0) }
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test(STABLE_HASH_CODE) { PublicClass().hashCode() }
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test(STABLE_TO_STRING) { PublicClass().toString() }
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testGroup = "Internal Class"
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test(STABLE_EQUALS) { InternalClass().equals(0) }
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test(STABLE_HASH_CODE) { InternalClass().hashCode() }
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test(STABLE_TO_STRING) { InternalClass().toString() }
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test(SIMPLE_EQUALS) { InternalClass().equals(0, 1) }
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test(SIMPLE_HASH_CODE_1) { InternalClass().hashCode(2) }
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test(SIMPLE_TO_STRING_1) { InternalClass().toString("3") }
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testGroup = "Private Class"
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test(STABLE_EQUALS) { PrivateClass().equals(0) }
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test(STABLE_HASH_CODE) { PrivateClass().hashCode() }
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test(STABLE_TO_STRING) { PrivateClass().toString() }
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test(SIMPLE_EQUALS) { PrivateClass().equals(0, 1) }
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test(SIMPLE_HASH_CODE_1) { PrivateClass().hashCode(2) }
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test(SIMPLE_TO_STRING_1) { PrivateClass().toString("3") }
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return "OK"
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}
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