org.eclipse.jdt.core.dom.SimpleName#resolveBinding ( )源码实例Demo

public static VariableDeclaration getVariableDeclaration(SimpleName variable)
{
	VariableDeclaration variableDeclaration        = null;
	MethodDeclaration method                       = findParentMethodDeclaration(variable);
	List<VariableDeclaration> variableDeclarations = getAllVariableDeclarations(method);
	// find the variable's initializer
	IBinding binding = variable.resolveBinding();
	if (binding.getKind() == IBinding.VARIABLE)
	{
		IVariableBinding variableBinding = (IVariableBinding) binding;
		for (VariableDeclaration currentVariableDeclaration : variableDeclarations)
		{
			IVariableBinding currentVariableDeclarationBinding = currentVariableDeclaration.resolveBinding();
			if (currentVariableDeclarationBinding.isEqualTo(variableBinding))
			{
				variableDeclaration = currentVariableDeclaration;
				break;
			}
		}
	}
	return variableDeclaration;
}
 

@Override
public boolean visit(SimpleName node){
	if (node.getParent() instanceof VariableDeclaration){
		if (((VariableDeclaration)node.getParent()).getName() == node)
		 {
			return true; //don't include declaration
		}
	}

	if (fTempBinding != null && fTempBinding == node.resolveBinding()) {
		if (fIsInJavadoc) {
			fJavadocNodes.add(node);
		} else {
			fReferenceNodes.add(node);
		}
	}

	return true;
}
 

@Override
public boolean visit(SimpleName node) {
	IBinding binding= node.resolveBinding();
	if (fBinding == binding) {
		String groupDescription= null;
		if (node != fName) {
			if (fUpdateReferences) {
				groupDescription= RefactoringCoreMessages.RenameTypeParameterRefactoring_update_type_parameter_reference;
			}
		} else {
			groupDescription= RefactoringCoreMessages.RenameTypeParameterRefactoring_update_type_parameter_declaration;
		}
		if (groupDescription != null) {
			fRewrite.getASTRewrite().set(node, SimpleName.IDENTIFIER_PROPERTY, getNewElementName(), fRewrite.createGroupDescription(groupDescription));
		}
	}
	return true;
}
 

@Override
public void endVisit(SimpleName node) {
	if (skipNode(node) || node.isDeclaration()) {
		return;
	}
	IBinding binding = node.resolveBinding();
	if (binding instanceof IVariableBinding) {
		IVariableBinding variable = (IVariableBinding) binding;
		if (!variable.isField()) {
			setFlowInfo(node, new LocalFlowInfo(variable, FlowInfo.READ, fFlowContext));
		}
	} else if (binding instanceof ITypeBinding) {
		ITypeBinding type = (ITypeBinding) binding;
		if (type.isTypeVariable()) {
			setFlowInfo(node, new TypeVariableFlowInfo(type, fFlowContext));
		}
	}
}
 

/**
 * {@inheritDoc}
 */
@Override
public boolean visit(VariableDeclarationExpression node) {
	if (fAddFinalLocals && node.fragments().size() == 1) {
		SimpleName name= ((VariableDeclarationFragment)node.fragments().get(0)).getName();

		IBinding binding= name.resolveBinding();
		if (binding == null)
			return false;

		if (fWrittenVariables.containsKey(binding))
			return false;

		ModifierChangeOperation op= createAddFinalOperation(name, node);
		if (op == null)
			return false;

		fResult.add(op);
		return false;
	}
	return false;
}
 

@Override
public boolean match(SimpleName node, Object other) {
	boolean isomorphic= super.match(node, other);
	if (! isomorphic || !(other instanceof SimpleName))
		return false;
	SimpleName name= (SimpleName)other;
	IBinding nodeBinding= node.resolveBinding();
	IBinding otherBinding= name.resolveBinding();
	if (nodeBinding == null) {
		if (otherBinding != null) {
			return false;
		}
	} else {
		if (nodeBinding != otherBinding) {
			return false;
		}
	}
	if (node.resolveTypeBinding() != name.resolveTypeBinding())
		return false;
	return true;
}
 

/**
 * {@inheritDoc}
 */
@Override
public boolean visit(SimpleName node) {
	if (node.getParent() instanceof VariableDeclarationFragment)
		return super.visit(node);
	if (node.getParent() instanceof SingleVariableDeclaration)
		return super.visit(node);

	IBinding binding= node.resolveBinding();
	if (!(binding instanceof IVariableBinding))
		return super.visit(node);

	binding= ((IVariableBinding)binding).getVariableDeclaration();
	if (ASTResolving.isWriteAccess(node)) {
		List<SimpleName> list;
		if (fResult.containsKey(binding)) {
			list= fResult.get(binding);
		} else {
			list= new ArrayList<SimpleName>();
		}
		list.add(node);
		fResult.put(binding, list);
	}

	return super.visit(node);
}
 

private void updateSimpleName(ASTRewrite rewriter, ParameterInfo pi, SimpleName node, List<SingleVariableDeclaration> enclosingParameters, IJavaProject project) {
	AST ast= rewriter.getAST();
	IBinding binding= node.resolveBinding();
	Expression replacementNode= fParameterObjectFactory.createFieldReadAccess(pi, getParameterName(), ast, project, false, null);
	if (binding instanceof IVariableBinding) {
		IVariableBinding variable= (IVariableBinding) binding;
		if (variable.isParameter() && variable.getName().equals(getNameInScope(pi, enclosingParameters))) {
			rewriter.replace(node, replacementNode, null);
		}
	} else {
		ASTNode parent= node.getParent();
		if (!(parent instanceof QualifiedName || parent instanceof FieldAccess || parent instanceof SuperFieldAccess)) {
			if (node.getIdentifier().equals(getNameInScope(pi, enclosingParameters))) {
				rewriter.replace(node, replacementNode, null);
			}
		}
	}
}
 

private static IBinding resolveBinding(ASTNode node) {
	if (node instanceof SimpleName) {
		SimpleName simpleName = (SimpleName) node;
		// workaround for https://bugs.eclipse.org/62605 (constructor name resolves to type, not method)
		ASTNode normalized = ASTNodes.getNormalizedNode(simpleName);
		if (normalized.getLocationInParent() == ClassInstanceCreation.TYPE_PROPERTY) {
			ClassInstanceCreation cic = (ClassInstanceCreation) normalized.getParent();
			IMethodBinding constructorBinding = cic.resolveConstructorBinding();
			if (constructorBinding == null) {
				return null;
			}
			ITypeBinding declaringClass = constructorBinding.getDeclaringClass();
			if (!declaringClass.isAnonymous()) {
				return constructorBinding;
			}
			ITypeBinding superTypeDeclaration = declaringClass.getSuperclass().getTypeDeclaration();
			return resolveSuperclassConstructor(superTypeDeclaration, constructorBinding);
		}
		return simpleName.resolveBinding();

	} else if (node instanceof SuperConstructorInvocation) {
		return ((SuperConstructorInvocation) node).resolveConstructorBinding();
	} else if (node instanceof ConstructorInvocation) {
		return ((ConstructorInvocation) node).resolveConstructorBinding();
	} else if (node instanceof LambdaExpression) {
		return ((LambdaExpression) node).resolveMethodBinding();
	} else {
		return null;
	}
}
 

@Override
public final boolean visit(final SimpleName node) {
	Assert.isNotNull(node);
	final IBinding binding= node.resolveBinding();
	if (binding != null)
		if (isFieldAccess(node) && !isQualifiedEntity(node)) {
			final IVariableBinding variable= (IVariableBinding) binding;
			final String key= variable.getKey();
			if (!fFound.contains(key)) {
				fFound.add(key);
				fBindings.add(variable);
			}
		}
	return false;
}
 

@Override
public boolean visit(SimpleName node) {
	addReferencesToName(node);
	IBinding binding= node.resolveBinding();
	if (binding instanceof ITypeBinding) {
		ITypeBinding type= (ITypeBinding)binding;
		if (type.isTypeVariable()) {
			addTypeVariableReference(type, node);
		}
	} else if (binding instanceof IVariableBinding) {
		IVariableBinding vb= (IVariableBinding)binding;
		if (vb.isField() && ! isStaticallyImported(node)) {
			Name topName= ASTNodes.getTopMostName(node);
			if (node == topName || node == ASTNodes.getLeftMostSimpleName(topName)) {
				StructuralPropertyDescriptor location= node.getLocationInParent();
				if (location != SingleVariableDeclaration.NAME_PROPERTY
					&& location != VariableDeclarationFragment.NAME_PROPERTY) {
					fImplicitReceivers.add(node);
				}
			}
		} else if (!vb.isField()) {
			// we have a local. Check if it is a parameter.
			ParameterData data= fParameters.get(binding);
			if (data != null) {
				ASTNode parent= node.getParent();
				if (parent instanceof Expression) {
					int precedence= OperatorPrecedence.getExpressionPrecedence((Expression)parent);
					if (precedence != Integer.MAX_VALUE) {
						data.setOperatorPrecedence(precedence);
					}
				}
			}
		}
	}
	return true;
}
 

@Override
public ITypeConstraint[] create(FieldAccess access){
	Expression expression= access.getExpression();
	SimpleName name= access.getName();
	IBinding binding= name.resolveBinding();
	if (! (binding instanceof IVariableBinding))
		return new ITypeConstraint[0];
	IVariableBinding vb= (IVariableBinding)binding;
	return createConstraintsForAccessToField(vb, expression, access);
}
 

@Override
public boolean visit(SimpleName node) {
	IBinding binding = node.resolveBinding();
	if (binding != null && fForInitializerVariables.contains(binding)) {
		fReferringToForVariable = true;
	}
	return false;
}
 

@Override
public boolean visit(SimpleName node) {
	IBinding binding= node.resolveBinding();
	if (binding != null && fForInitializerVariables.contains(binding)) {
		fReferringToForVariable= true;
	}
	return false;
}
 

@Override
public boolean visit(SimpleName node) {
	IBinding binding= node.resolveBinding();
	if (binding instanceof IVariableBinding) {
		IVariableBinding variableBinding= (IVariableBinding) binding;
		if (variableBinding.isField()) {
			if (isAccessToOuter(variableBinding.getDeclaringClass())) {
				fSimpleNames.add(node);
			}
		}
	}
	return false;
}
 

private static boolean isStaticFieldName(SimpleName name) {
	IBinding binding= name.resolveBinding();
	if (!(binding instanceof IVariableBinding))
		return false;
	IVariableBinding variableBinding= (IVariableBinding) binding;
	if (!variableBinding.isField())
		return false;
	return JdtFlags.isStatic(variableBinding);
}
 

public boolean visit(SimpleName expr) {
	IBinding binding = expr.resolveBinding();
	if(binding != null) {
		bindingKeys.add(binding.getKey());
	}
	else {
		bindingKeys.add(expr.toString());
	}
	return false;
}
 

private boolean isStaticMethodCall(ASTNode node) {
	if (node instanceof SimpleName){
		SimpleName simpleName = (SimpleName) node;
		IBinding binding = simpleName.resolveBinding();
		if(binding != null && binding.getKind() == IBinding.METHOD) {
			IMethodBinding methodBinding = (IMethodBinding)binding;
			if((methodBinding.getModifiers() & Modifier.STATIC) != 0) 
				return true;
		}
	}
	return false;
}
 

public static boolean isVariableLeftOperand(SimpleName variable, InfixExpression infixExpression)
{
	boolean leftOperandIsVariable     = false;
	Expression leftOperand            = infixExpression.getLeftOperand();
	//Expression rightOperand           = infixExpression.getRightOperand();
	IBinding infixVariableBinding     = variable.resolveBinding();
	if (leftOperand instanceof SimpleName)
	{
		SimpleName leftOperandSimpleName = (SimpleName) leftOperand;
		IBinding leftOperandBinding      = leftOperandSimpleName.resolveBinding();
		if (leftOperandBinding.isEqualTo(infixVariableBinding))
		{
			leftOperandIsVariable = true;
		}
	}
	else if (leftOperand instanceof InfixExpression)
	{
		InfixExpression infixLeftOperand = (InfixExpression) leftOperand;
		boolean left = isVariableLeftOperand(variable, infixLeftOperand);
		boolean right = isVariableRightOperand(variable, infixLeftOperand);
		List<Expression> extendedOperands = infixLeftOperand.extendedOperands();
		boolean variableFoundInExtendedOperands = false;
		for (Expression expression : extendedOperands)
		{
			if (expression instanceof SimpleName)
			{
				SimpleName simpleName = (SimpleName) expression;
				IBinding simpleNameBinding = simpleName.resolveBinding();
				if (simpleNameBinding.isEqualTo(infixVariableBinding))
				{
					variableFoundInExtendedOperands = true;
					break;
				}
			}
		}
		if (left || right || variableFoundInExtendedOperands)
		{
			leftOperandIsVariable = true;
		}
	}
	return leftOperandIsVariable;
}
 

@Override
public final boolean visit(final SimpleName node) {
	Assert.isNotNull(node);
	final AST ast= node.getAST();
	final ASTRewrite rewrite= fRewrite;
	final IBinding binding= node.resolveBinding();
	if (binding instanceof ITypeBinding) {
		ITypeBinding type= (ITypeBinding) binding;
		String name= fTargetRewrite.getImportRewrite().addImport(type.getTypeDeclaration());
		if (name != null && name.indexOf('.') != -1) {
			fRewrite.replace(node, ASTNodeFactory.newName(ast, name), null);
			return false;
		}
	}
	if (Bindings.equals(fTarget, binding))
		if (fAnonymousClass > 0) {
			final ThisExpression target= ast.newThisExpression();
			target.setQualifier(ast.newSimpleName(fTargetType.getElementName()));
			fRewrite.replace(node, target, null);
		} else
			rewrite.replace(node, ast.newThisExpression(), null);
	else if (binding instanceof IVariableBinding) {
		final IVariableBinding variable= (IVariableBinding) binding;
		final IMethodBinding method= fDeclaration.resolveBinding();
		ITypeBinding declaring= variable.getDeclaringClass();
		if (method != null) {
			if (declaring != null && Bindings.isSuperType(declaring, method.getDeclaringClass(), false)) {
				declaring= declaring.getTypeDeclaration();
				if (JdtFlags.isStatic(variable))
					rewrite.replace(node, ast.newQualifiedName(ASTNodeFactory.newName(ast, fTargetRewrite.getImportRewrite().addImport(declaring)), ast.newSimpleName(node.getFullyQualifiedName())), null);
				else {
					final FieldAccess access= ast.newFieldAccess();
					access.setExpression(ast.newSimpleName(fTargetName));
					access.setName(ast.newSimpleName(node.getFullyQualifiedName()));
					rewrite.replace(node, access, null);
				}
			} else if (!(node.getParent() instanceof QualifiedName) && JdtFlags.isStatic(variable) && !fStaticImports.contains(variable) && !Checks.isEnumCase(node.getParent())) {
				rewrite.replace(node, ast.newQualifiedName(ASTNodeFactory.newName(ast, fTargetRewrite.getImportRewrite().addImport(declaring)), ast.newSimpleName(node.getFullyQualifiedName())), null);
			}
		}
	}
	return false;
}