diff options
Diffstat (limited to 'javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/javassistmodel/JavassistMethodDeclaration.java')
-rw-r--r-- | javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/javassistmodel/JavassistMethodDeclaration.java | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/javassistmodel/JavassistMethodDeclaration.java b/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/javassistmodel/JavassistMethodDeclaration.java new file mode 100644 index 000000000..c474d501d --- /dev/null +++ b/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/javassistmodel/JavassistMethodDeclaration.java @@ -0,0 +1,198 @@ +/* + * 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.javassistmodel; + +import com.github.javaparser.ast.AccessSpecifier; +import com.github.javaparser.ast.Node; +import com.github.javaparser.resolution.MethodUsage; +import com.github.javaparser.resolution.declarations.ResolvedMethodDeclaration; +import com.github.javaparser.resolution.declarations.ResolvedParameterDeclaration; +import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration; +import com.github.javaparser.resolution.declarations.ResolvedTypeParameterDeclaration; +import com.github.javaparser.resolution.types.ResolvedType; +import com.github.javaparser.symbolsolver.core.resolution.Context; +import com.github.javaparser.symbolsolver.declarations.common.MethodDeclarationCommonLogic; +import com.github.javaparser.symbolsolver.model.resolution.TypeSolver; +import javassist.CtMethod; +import javassist.NotFoundException; +import javassist.bytecode.BadBytecode; +import javassist.bytecode.SignatureAttribute; + +import java.lang.reflect.Modifier; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.stream.Collectors; + +/** + * @author Federico Tomassetti + */ +public class JavassistMethodDeclaration implements ResolvedMethodDeclaration { + private CtMethod ctMethod; + private TypeSolver typeSolver; + + public JavassistMethodDeclaration(CtMethod ctMethod, TypeSolver typeSolver) { + this.ctMethod = ctMethod; + this.typeSolver = typeSolver; + } + + @Override + public boolean isDefaultMethod() { + return ctMethod.getDeclaringClass().isInterface() && !isAbstract(); + } + + @Override + public boolean isStatic() { + return Modifier.isStatic(ctMethod.getModifiers()); + } + + @Override + public String toString() { + return "JavassistMethodDeclaration{" + + "ctMethod=" + ctMethod + + '}'; + } + + @Override + public String getName() { + return ctMethod.getName(); + } + + @Override + public boolean isField() { + return false; + } + + @Override + public boolean isParameter() { + return false; + } + + @Override + public boolean isType() { + return false; + } + + @Override + public ResolvedReferenceTypeDeclaration declaringType() { + if (ctMethod.getDeclaringClass().isInterface()) { + return new JavassistInterfaceDeclaration(ctMethod.getDeclaringClass(), typeSolver); + } else { + return new JavassistClassDeclaration(ctMethod.getDeclaringClass(), typeSolver); + } + } + + @Override + public ResolvedType getReturnType() { + try { + if (ctMethod.getGenericSignature() != null) { + javassist.bytecode.SignatureAttribute.Type genericSignatureType = SignatureAttribute.toMethodSignature(ctMethod.getGenericSignature()).getReturnType(); + return JavassistUtils.signatureTypeToType(genericSignatureType, typeSolver, this); + } else { + return JavassistFactory.typeUsageFor(ctMethod.getReturnType(), typeSolver); + } + } catch (NotFoundException e) { + throw new RuntimeException(e); + } catch (BadBytecode e) { + throw new RuntimeException(e); + } + } + + + @Override + public int getNumberOfParams() { + try { + return ctMethod.getParameterTypes().length; + } catch (NotFoundException e) { + throw new RuntimeException(e); + } + } + + @Override + public ResolvedParameterDeclaration getParam(int i) { + try { + boolean variadic = false; + if ((ctMethod.getModifiers() & javassist.Modifier.VARARGS) > 0) { + variadic = i == (ctMethod.getParameterTypes().length - 1); + } + if (ctMethod.getGenericSignature() != null) { + SignatureAttribute.MethodSignature methodSignature = SignatureAttribute.toMethodSignature(ctMethod.getGenericSignature()); + SignatureAttribute.Type signatureType = methodSignature.getParameterTypes()[i]; + return new JavassistParameterDeclaration(JavassistUtils.signatureTypeToType(signatureType, typeSolver, this), typeSolver, variadic); + } else { + return new JavassistParameterDeclaration(ctMethod.getParameterTypes()[i], typeSolver, variadic); + } + } catch (NotFoundException e) { + throw new RuntimeException(e); + } catch (BadBytecode badBytecode) { + throw new RuntimeException(badBytecode); + } + } + + public MethodUsage getUsage(Node node) { + throw new UnsupportedOperationException(); + } + + public MethodUsage resolveTypeVariables(Context context, List<ResolvedType> parameterTypes) { + return new MethodDeclarationCommonLogic(this, typeSolver).resolveTypeVariables(context, parameterTypes); + } + + @Override + public boolean isAbstract() { + return Modifier.isAbstract(ctMethod.getModifiers()); + } + + @Override + public List<ResolvedTypeParameterDeclaration> getTypeParameters() { + try { + if (ctMethod.getGenericSignature() == null) { + return Collections.emptyList(); + } + SignatureAttribute.MethodSignature methodSignature = SignatureAttribute.toMethodSignature(ctMethod.getGenericSignature()); + return Arrays.stream(methodSignature.getTypeParameters()).map((jasTp) -> new JavassistTypeParameter(jasTp, this, typeSolver)).collect(Collectors.toList()); + } catch (BadBytecode badBytecode) { + throw new RuntimeException(badBytecode); + } + } + + @Override + public AccessSpecifier accessSpecifier() { + throw new UnsupportedOperationException(); + } + + @Override + public int getNumberOfSpecifiedExceptions() { + try { + return ctMethod.getExceptionTypes().length; + } catch (NotFoundException e) { + throw new RuntimeException(e); + } + } + + @Override + public ResolvedType getSpecifiedException(int index) { + if (index < 0 || index >= getNumberOfSpecifiedExceptions()) { + throw new IllegalArgumentException(String.format("No exception with index %d. Number of exceptions: %d", + index, getNumberOfSpecifiedExceptions())); + } + try { + return JavassistFactory.typeUsageFor(ctMethod.getExceptionTypes()[index], typeSolver); + } catch (NotFoundException e) { + throw new RuntimeException(e); + } + } +} |