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/*
* Copyright 2016 Federico Tomassetti
*
* 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 com.github.javaparser.symbolsolver.core.resolution;
import com.github.javaparser.resolution.MethodUsage;
import com.github.javaparser.resolution.declarations.*;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.model.resolution.SymbolReference;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import com.github.javaparser.symbolsolver.model.resolution.Value;
import java.util.List;
import java.util.Optional;
/**
* Context is very similar to scope.
* In the context we look for solving symbols.
*
* @author Federico Tomassetti
*/
public interface Context {
Context getParent();
/* Type resolution */
default Optional<ResolvedType> solveGenericType(String name, TypeSolver typeSolver) {
return Optional.empty();
}
default SymbolReference<ResolvedTypeDeclaration> solveType(String name, TypeSolver typeSolver) {
Context parent = getParent();
if (parent == null) {
return SymbolReference.unsolved(ResolvedReferenceTypeDeclaration.class);
} else {
return parent.solveType(name, typeSolver);
}
}
/* Symbol resolution */
SymbolReference<? extends ResolvedValueDeclaration> solveSymbol(String name, TypeSolver typeSolver);
default Optional<Value> solveSymbolAsValue(String name, TypeSolver typeSolver) {
SymbolReference<? extends ResolvedValueDeclaration> ref = solveSymbol(name, typeSolver);
if (ref.isSolved()) {
Value value = Value.from(ref.getCorrespondingDeclaration());
return Optional.of(value);
} else {
return Optional.empty();
}
}
/* Constructor resolution */
/**
* We find the method declaration which is the best match for the given name and list of typeParametersValues.
*/
default SymbolReference<ResolvedConstructorDeclaration> solveConstructor(List<ResolvedType> argumentsTypes, TypeSolver typeSolver) {
throw new IllegalArgumentException("Constructor resolution is available only on Class Context");
}
/* Methods resolution */
/**
* We find the method declaration which is the best match for the given name and list of typeParametersValues.
*/
SymbolReference<ResolvedMethodDeclaration> solveMethod(String name, List<ResolvedType> argumentsTypes, boolean staticOnly, TypeSolver typeSolver);
/**
* Similar to solveMethod but we return a MethodUsage. A MethodUsage corresponds to a MethodDeclaration plus the
* resolved type variables.
*/
default Optional<MethodUsage> solveMethodAsUsage(String name, List<ResolvedType> argumentsTypes, TypeSolver typeSolver) {
SymbolReference<ResolvedMethodDeclaration> methodSolved = solveMethod(name, argumentsTypes, false, typeSolver);
if (methodSolved.isSolved()) {
ResolvedMethodDeclaration methodDeclaration = methodSolved.getCorrespondingDeclaration();
MethodUsage methodUsage = ContextHelper.resolveTypeVariables(this, methodDeclaration, argumentsTypes);//methodDeclaration.resolveTypeVariables(this, argumentsTypes);
return Optional.of(methodUsage);
} else {
return Optional.empty();
}
}
}
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