| /* |
| * Copyright (C) 2007-2010 JĂșlio Vilmar Gesser. |
| * Copyright (C) 2011, 2013-2016 The JavaParser Team. |
| * |
| * This file is part of JavaParser. |
| * |
| * JavaParser can be used either under the terms of |
| * a) the GNU Lesser General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * b) the terms of the Apache License |
| * |
| * You should have received a copy of both licenses in LICENCE.LGPL and |
| * LICENCE.APACHE. Please refer to those files for details. |
| * |
| * JavaParser is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Lesser General Public License for more details. |
| */ |
| |
| package com.github.javaparser.resolution.types.parametrization; |
| |
| import com.github.javaparser.resolution.declarations.ResolvedTypeParameterDeclaration; |
| import com.github.javaparser.resolution.types.ResolvedType; |
| import com.github.javaparser.resolution.types.ResolvedWildcard; |
| |
| import java.util.Optional; |
| |
| /** |
| * @author Federico Tomassetti |
| */ |
| public interface ResolvedTypeParameterValueProvider { |
| |
| /** |
| * Calculate the value for the given type parameter. |
| * It could be inherited. |
| */ |
| Optional<ResolvedType> typeParamValue(ResolvedTypeParameterDeclaration typeParameterDeclaration); |
| |
| /** |
| * Replace the type typeParametersValues present in the given type with the ones for which this type |
| * has a value. |
| */ |
| default ResolvedType useThisTypeParametersOnTheGivenType(ResolvedType type) { |
| if (type.isTypeVariable()) { |
| ResolvedTypeParameterDeclaration typeParameter = type.asTypeParameter(); |
| if (typeParameter.declaredOnType()) { |
| Optional<ResolvedType> typeParam = typeParamValue(typeParameter); |
| if (typeParam.isPresent()) { |
| type = typeParam.get(); |
| } |
| } |
| } |
| |
| if (type.isWildcard() && type.asWildcard().isBounded()) { |
| if (type.asWildcard().isExtends()) { |
| return ResolvedWildcard.extendsBound(useThisTypeParametersOnTheGivenType(type.asWildcard().getBoundedType())); |
| } else { |
| return ResolvedWildcard.superBound(useThisTypeParametersOnTheGivenType(type.asWildcard().getBoundedType())); |
| } |
| } |
| |
| if (type.isReferenceType()) { |
| type = type.asReferenceType().transformTypeParameters(this::useThisTypeParametersOnTheGivenType); |
| } |
| |
| return type; |
| } |
| |
| Optional<ResolvedType> getGenericParameterByName(String name); |
| } |