kotlin.reflect.jvm.internal.impl.platform.mappingUtil.kt Maven / Gradle / Ivy
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Kotlin Full Reflection Library
/*
* Copyright 2010-2016 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.impl.platform
import kotlin.reflect.jvm.internal.impl.descriptors.ClassDescriptor
import kotlin.reflect.jvm.internal.impl.descriptors.TypeParameterDescriptor
import kotlin.reflect.jvm.internal.impl.types.TypeConstructorSubstitution
import kotlin.reflect.jvm.internal.impl.types.typeUtil.asTypeProjection
fun createMappedTypeParametersSubstitution(from: ClassDescriptor, to: ClassDescriptor): TypeConstructorSubstitution {
assert(from.declaredTypeParameters.size == to.declaredTypeParameters.size) {
"$from and $to should have same number of type parameters, " +
"but ${from.declaredTypeParameters.size} / ${to.declaredTypeParameters.size} found"
}
return TypeConstructorSubstitution.createByConstructorsMap(
from.declaredTypeParameters.map(TypeParameterDescriptor::getTypeConstructor).zip(
to.declaredTypeParameters.map { it.defaultType.asTypeProjection() }
).toMap())
}