/*
* 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;
import kotlin.
Unit;
import org.jetbrains.annotations.
NotNull;
import org.jetbrains.kotlin.descriptors.*;
import org.jetbrains.kotlin.descriptors.impl.
ValueParameterDescriptorImpl;
import org.jetbrains.kotlin.resolve.scopes.*;
import org.jetbrains.kotlin.types.*;
import org.jetbrains.kotlin.types.typeUtil.
TypeUtilsKt;
import java.util.
List;
public class
FunctionDescriptorUtil {
private static final
TypeSubstitutor MAKE_TYPE_PARAMETERS_FRESH =
TypeSubstitutor.
create(new
TypeSubstitution() {
@
Override
public
TypeProjection get(@
NotNull KotlinType key) {
return null;
}
@
Override
public
String toString() {
return "FunctionDescriptorUtil.MAKE_TYPE_PARAMETERS_FRESH";
}
});
private
FunctionDescriptorUtil() {
}
public static
TypeSubstitution createSubstitution(
@
NotNull FunctionDescriptor functionDescriptor,
@
NotNull List<
KotlinType>
typeArguments
) {
if (
functionDescriptor.
getTypeParameters().
isEmpty()) return
TypeSubstitution.
EMPTY;
return new
IndexedParametersSubstitution(
functionDescriptor.
getTypeParameters(),
TypeUtilsKt.
defaultProjections(
typeArguments));
}
@
NotNull
public static
LexicalScope getFunctionInnerScope(
@
NotNull LexicalScope outerScope, @
NotNull FunctionDescriptor descriptor,
@
NotNull BindingTrace trace, @
NotNull OverloadChecker overloadChecker
) {
return
getFunctionInnerScope(
outerScope,
descriptor, new
TraceBasedLocalRedeclarationChecker(
trace,
overloadChecker));
}
@
NotNull
public static
LexicalScope getFunctionInnerScope(
@
NotNull LexicalScope outerScope,
@
NotNull FunctionDescriptor descriptor,
@
NotNull LocalRedeclarationChecker redeclarationChecker
) {
return new
LexicalScopeImpl(
outerScope,
descriptor, true,
descriptor.
getExtensionReceiverParameter(),
LexicalScopeKind.
FUNCTION_INNER_SCOPE,
redeclarationChecker,
handler -> {
for (
TypeParameterDescriptor typeParameter :
descriptor.
getTypeParameters()) {
handler.
addClassifierDescriptor(
typeParameter);
}
for (
ValueParameterDescriptor valueParameterDescriptor :
descriptor.
getValueParameters()) {
if (
valueParameterDescriptor instanceof
ValueParameterDescriptorImpl.
WithDestructuringDeclaration) {
List<
VariableDescriptor>
entries =
((
ValueParameterDescriptorImpl.
WithDestructuringDeclaration)
valueParameterDescriptor)
.
getDestructuringVariables();
for (
VariableDescriptor entry :
entries) {
handler.
addVariableDescriptor(
entry);
}
}
else {
handler.
addVariableDescriptor(
valueParameterDescriptor);
}
}
return
Unit.
INSTANCE;
}
);
}
@
SuppressWarnings("unchecked")
public static <D extends
CallableDescriptor> D
alphaConvertTypeParameters(D
candidate) {
return (D)
candidate.
substitute(
MAKE_TYPE_PARAMETERS_FRESH);
}
}