org.jetbrains.kotlin.resolve.constants.IntegerValueTypeConstructor.kt Maven / Gradle / Ivy
/*
* 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 org.jetbrains.kotlin.resolve.constants
import org.jetbrains.kotlin.builtins.KotlinBuiltIns
import org.jetbrains.kotlin.builtins.StandardNames
import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
import org.jetbrains.kotlin.types.KotlinType
import org.jetbrains.kotlin.types.TypeConstructor
import org.jetbrains.kotlin.types.checker.KotlinTypeRefiner
import org.jetbrains.kotlin.types.TypeRefinement
import java.util.*
class IntegerValueTypeConstructor(
private val value: Long,
private val module: ModuleDescriptor,
parameters: CompileTimeConstant.Parameters
) : TypeConstructor {
private val supertypes = ArrayList(4)
init {
// order of types matters
// 'getPrimitiveNumberType' returns first of supertypes that is a subtype of expected type
// for expected type 'Any' result type 'Int' should be returned
val isUnsigned = parameters.isUnsignedNumberLiteral
val isConvertable = parameters.isConvertableConstVal
if (isUnsigned || isConvertable) {
assert(hasUnsignedTypesInModuleDependencies(module)) {
"Unsigned types should be on classpath to create an unsigned type constructor"
}
}
when {
isConvertable -> {
addSignedSuperTypes()
addUnsignedSuperTypes()
}
isUnsigned -> addUnsignedSuperTypes()
else -> addSignedSuperTypes()
}
}
private fun addSignedSuperTypes() {
checkBoundsAndAddSuperType(value, builtIns.intType)
checkBoundsAndAddSuperType(value, builtIns.byteType)
checkBoundsAndAddSuperType(value, builtIns.shortType)
supertypes.add(builtIns.longType)
}
private fun addUnsignedSuperTypes() {
checkBoundsAndAddSuperType(value, module.unsignedType(StandardNames.FqNames.uInt))
checkBoundsAndAddSuperType(value, module.unsignedType(StandardNames.FqNames.uByte))
checkBoundsAndAddSuperType(value, module.unsignedType(StandardNames.FqNames.uShort))
supertypes.add(module.unsignedType(StandardNames.FqNames.uLong))
}
private fun checkBoundsAndAddSuperType(value: Long, kotlinType: KotlinType) {
if (value in kotlinType.minValue()..kotlinType.maxValue()) {
supertypes.add(kotlinType)
}
}
override fun getSupertypes(): Collection = supertypes
override fun getParameters(): List = emptyList()
override fun isFinal() = false
override fun isDenotable() = false
override fun getDeclarationDescriptor() = null
fun getValue(): Long = value
override fun getBuiltIns(): KotlinBuiltIns {
return module.builtIns
}
@TypeRefinement
override fun refine(kotlinTypeRefiner: KotlinTypeRefiner): TypeConstructor = this
override fun toString() = "IntegerValueType($value)"
}