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the Kotlin compiler embeddable
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kotlin.reflect.jvm.internal
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.Visibilities
import org.jetbrains.kotlin.descriptors.Visibility
import org.jetbrains.kotlin.descriptors.annotations.Annotated
import org.jetbrains.kotlin.load.java.components.RuntimeSourceElementFactory
import org.jetbrains.kotlin.load.java.reflect.tryLoadClass
import org.jetbrains.kotlin.load.java.structure.reflect.ReflectJavaAnnotation
import org.jetbrains.kotlin.load.java.structure.reflect.ReflectJavaClass
import org.jetbrains.kotlin.load.java.structure.reflect.safeClassLoader
import org.jetbrains.kotlin.load.kotlin.KotlinJvmBinarySourceElement
import org.jetbrains.kotlin.load.kotlin.reflect.ReflectAnnotationSource
import org.jetbrains.kotlin.load.kotlin.reflect.ReflectKotlinClass
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.platform.JavaToKotlinClassMap
import org.jetbrains.kotlin.resolve.DescriptorUtils
import org.jetbrains.kotlin.resolve.descriptorUtil.classId
import kotlin.jvm.internal.FunctionReference
import kotlin.jvm.internal.PropertyReference
import kotlin.reflect.full.IllegalCallableAccessException
import kotlin.reflect.KVisibility
internal val JVM_STATIC = FqName("kotlin.jvm.JvmStatic")
internal fun ClassDescriptor.toJavaClass(): Class<*>? {
val source = source
return when (source) {
is KotlinJvmBinarySourceElement -> {
(source.binaryClass as ReflectKotlinClass).klass
}
is RuntimeSourceElementFactory.RuntimeSourceElement -> {
(source.javaElement as ReflectJavaClass).element
}
else -> {
// If this is neither a Kotlin class nor a Java class, it is either a built-in or some fake class descriptor like the one
// that's created for java.io.Serializable in JvmBuiltInsSettings
val classId = JavaToKotlinClassMap.INSTANCE.mapKotlinToJava(DescriptorUtils.getFqName(this)) ?: classId!!
val packageName = classId.packageFqName.asString()
val className = classId.relativeClassName.asString()
// All pseudo-classes like kotlin.String.Companion must be accessible from the current class loader
loadClass(javaClass.safeClassLoader, packageName, className)
}
}
}
internal fun loadClass(classLoader: ClassLoader, packageName: String, className: String): Class<*>? {
if (packageName == "kotlin") {
// See mapBuiltInType() in typeSignatureMapping.kt
when (className) {
"Array" -> return Array::class.java
"BooleanArray" -> return BooleanArray::class.java
"ByteArray" -> return ByteArray::class.java
"CharArray" -> return CharArray::class.java
"DoubleArray" -> return DoubleArray::class.java
"FloatArray" -> return FloatArray::class.java
"IntArray" -> return IntArray::class.java
"LongArray" -> return LongArray::class.java
"ShortArray" -> return ShortArray::class.java
}
}
return classLoader.tryLoadClass("$packageName.${className.replace('.', '$')}")
}
internal fun Visibility.toKVisibility(): KVisibility? =
when (this) {
Visibilities.PUBLIC -> KVisibility.PUBLIC
Visibilities.PROTECTED -> KVisibility.PROTECTED
Visibilities.INTERNAL -> KVisibility.INTERNAL
Visibilities.PRIVATE, Visibilities.PRIVATE_TO_THIS -> KVisibility.PRIVATE
else -> null
}
internal fun Annotated.computeAnnotations(): List =
annotations.mapNotNull {
val source = it.source
when (source) {
is ReflectAnnotationSource -> source.annotation
is RuntimeSourceElementFactory.RuntimeSourceElement -> (source.javaElement as? ReflectJavaAnnotation)?.annotation
else -> null
}
}
// TODO: wrap other exceptions
internal inline fun reflectionCall(block: () -> R): R =
try {
block()
}
catch (e: IllegalAccessException) {
throw IllegalCallableAccessException(e)
}
internal fun Any?.asKFunctionImpl(): KFunctionImpl? =
this as? KFunctionImpl ?:
(this as? FunctionReference)?.compute() as? KFunctionImpl
internal fun Any?.asKPropertyImpl(): KPropertyImpl<*>? =
this as? KPropertyImpl<*> ?:
(this as? PropertyReference)?.compute() as? KPropertyImpl
internal fun Any?.asKCallableImpl(): KCallableImpl<*>? =
this as? KCallableImpl<*> ?: asKFunctionImpl() ?: asKPropertyImpl()