Added support of MetaSerializable to the FIR

2022-10-12 20:10:58 +00:00
parent 28340459b0
commit 503f4d924d
13 changed files with 980 additions and 233 deletions
@@ -0,0 +1,180 @@
+// WITH_STDLIB
+
+import kotlinx.serialization.*
+import kotlinx.serialization.encoding.*
+import kotlinx.serialization.descriptors.*
+import kotlinx.serialization.json.*
+import kotlin.reflect.KClass
+import kotlin.test.*
+
+@MetaSerializable
+@Target(AnnotationTarget.CLASS, AnnotationTarget.PROPERTY)
+annotation class MySerializable
+
+@MetaSerializable
+@Target(AnnotationTarget.CLASS, AnnotationTarget.PROPERTY)
+annotation class MySerializableWithInfo(
+    val value: Int,
+    val kclass: KClass<*>
+)
+
+@MySerializable
+class Project1(val name: String, val language: String)
+
+@MySerializableWithInfo(123, String::class)
+class Project2(val name: String, val language: String)
+
+@Serializable
+class Wrapper(
+    @MySerializableWithInfo(234, Int::class) val project: Project2
+)
+
+@Serializable
+@MySerializableWithInfo(123, String::class)
+class Project3(val name: String, val language: String)
+
+@Serializable(with = MySerializer::class)
+@MySerializableWithInfo(123, String::class)
+class Project4(val name: String, val language: String)
+
+@MySerializableWithInfo(123, String::class)
+sealed class TestSealed {
+    @MySerializableWithInfo(123, String::class)
+    class A(val value1: String) : TestSealed()
+    @MySerializableWithInfo(123, String::class)
+    class B(val value2: String) : TestSealed()
+}
+
+@MySerializable
+abstract class TestAbstract {
+    @MySerializableWithInfo(123, String::class)
+    class A(val value1: String) : TestSealed()
+
+    @MySerializableWithInfo(123, String::class)
+    class B(val value2: String) : TestSealed()
+}
+
+@MySerializableWithInfo(123, String::class)
+enum class TestEnum { Value1, Value2 }
+
+@MySerializableWithInfo(123, String::class)
+object TestObject
+
+object MySerializer : KSerializer<Project4> {
+
+    override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("Project4", PrimitiveKind.STRING)
+
+    override fun serialize(encoder: Encoder, value: Project4) = encoder.encodeString("${value.name}:${value.language}")
+
+    override fun deserialize(decoder: Decoder): Project4 {
+        val params = decoder.decodeString().split(':')
+        return Project4(params[0], params[1])
+    }
+}
+
+fun testMetaSerializable() {
+    val string = Json.encodeToString(Project1.serializer(), Project1("name", "lang"))
+    assertEquals("""{"name":"name","language":"lang"}""", string)
+
+    val reconstructed = Json.decodeFromString(Project1.serializer(), string)
+    assertEquals("name", reconstructed.name)
+    assertEquals("lang", reconstructed.language)
+}
+
+fun testMetaSerializableWithInfo() {
+    val string = Json.encodeToString(Project2.serializer(), Project2("name", "lang"))
+    assertEquals("""{"name":"name","language":"lang"}""", string)
+
+    val reconstructed = Json.decodeFromString(Project2.serializer(), string)
+    assertEquals("name", reconstructed.name)
+    assertEquals("lang", reconstructed.language)
+
+    val info = Project2.serializer().descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, info.value)
+    assertEquals(String::class, info.kclass)
+}
+
+fun testMetaSerializableOnProperty() {
+    val info = Wrapper.serializer().descriptor.getElementAnnotations(0).filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(234, info.value)
+    assertEquals(Int::class, info.kclass)
+}
+
+fun testSerializableAndMetaAnnotation() {
+    val string = Json.encodeToString(Project3.serializer(), Project3("name", "lang"))
+    assertEquals("""{"name":"name","language":"lang"}""", string)
+
+    val reconstructed = Json.decodeFromString(Project3.serializer(), string)
+    assertEquals("name", reconstructed.name)
+    assertEquals("lang", reconstructed.language)
+
+    val info = Project3.serializer().descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, info.value)
+    assertEquals(String::class, info.kclass)
+}
+
+fun testCustomSerializerAndMetaAnnotation() {
+    val string = Json.encodeToString(Project4.serializer(), Project4("name", "lang"))
+    assertEquals("""name:lang""", string)
+
+    val reconstructed = Json.decodeFromString(Project4.serializer(), string)
+    assertEquals("name", reconstructed.name)
+    assertEquals("lang", reconstructed.language)
+}
+
+fun testSealed() {
+    val serializerA = TestSealed.A.serializer()
+    val serializerB = TestSealed.B.serializer()
+    assertNotNull(serializerA)
+    assertNotNull(serializerB)
+
+    val infoA = serializerA.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    val infoB = serializerB.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, infoA.value)
+    assertEquals(String::class, infoA.kclass)
+    assertEquals(123, infoB.value)
+    assertEquals(String::class, infoB.kclass)
+}
+
+fun testAbstract() {
+    val serializerA = TestAbstract.A.serializer()
+    val serializerB = TestAbstract.B.serializer()
+    assertNotNull(serializerA)
+    assertNotNull(serializerB)
+
+    val infoA = serializerA.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    val infoB = serializerB.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, infoA.value)
+    assertEquals(String::class, infoA.kclass)
+    assertEquals(123, infoB.value)
+    assertEquals(String::class, infoB.kclass)
+}
+
+fun testEnum() {
+    val serializer = TestEnum.serializer()
+    assertNotNull(serializer)
+
+    val info = serializer.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, info.value)
+    assertEquals(String::class, info.kclass)
+}
+
+fun testObject() {
+    val serializer = TestObject.serializer()
+    assertNotNull(serializer)
+
+    val info = serializer.descriptor.annotations.filterIsInstance<MySerializableWithInfo>().first()
+    assertEquals(123, info.value)
+    assertEquals(String::class, info.kclass)
+}
+
+fun box(): String {
+    testMetaSerializable()
+    testMetaSerializableWithInfo()
+    testMetaSerializableOnProperty()
+    testSealed()
+    testAbstract()
+    testEnum()
+    testObject()
+    return "OK"
+}