org.eclipse.jdt.core.dom.ClassInstanceCreation#getType ( )源码实例Demo

@Override
public boolean visit(final ClassInstanceCreation node) {
	Assert.isNotNull(node);
	if (fCreateInstanceField) {
		final AST ast= node.getAST();
		final Type type= node.getType();
		final ITypeBinding binding= type.resolveBinding();
		if (binding != null && binding.getDeclaringClass() != null && !Bindings.equals(binding, fTypeBinding) && fSourceRewrite.getRoot().findDeclaringNode(binding) != null) {
			if (!Modifier.isStatic(binding.getModifiers())) {
				Expression expression= null;
				if (fCodeGenerationSettings.useKeywordThis || fEnclosingInstanceFieldName.equals(fNameForEnclosingInstanceConstructorParameter)) {
					final FieldAccess access= ast.newFieldAccess();
					access.setExpression(ast.newThisExpression());
					access.setName(ast.newSimpleName(fEnclosingInstanceFieldName));
					expression= access;
				} else
					expression= ast.newSimpleName(fEnclosingInstanceFieldName);
				if (node.getExpression() != null)
					fSourceRewrite.getImportRemover().registerRemovedNode(node.getExpression());
				fSourceRewrite.getASTRewrite().set(node, ClassInstanceCreation.EXPRESSION_PROPERTY, expression, fGroup);
			} else
				addTypeQualification(type, fSourceRewrite, fGroup);
		}
	}
	return true;
}
 

@Override
public void endVisit(ClassInstanceCreation node) {
	Expression receiver= node.getExpression();
	Type createdType= node.getType();

	ConstraintVariable2 typeCv;
	if (node.getAnonymousClassDeclaration() == null) {
		typeCv= getConstraintVariable(createdType);
	} else {
		typeCv= fTCModel.makeImmutableTypeVariable(createdType.resolveBinding(), null);
		setConstraintVariable(createdType, typeCv);
	}
	setConstraintVariable(node, typeCv);

	IMethodBinding methodBinding= node.resolveConstructorBinding();
	Map<String, IndependentTypeVariable2> methodTypeVariables= createMethodTypeArguments(methodBinding);
	List<Expression> arguments= node.arguments();
	doVisitMethodInvocationArguments(methodBinding, arguments, receiver, methodTypeVariables, createdType);
}
 

private void addParameterInfo(CompilationUnitRewrite cuRewrite) throws JavaModelException {
	ITypeBinding typeBinding= Bindings.normalizeForDeclarationUse(fSelectedExpression.resolveTypeBinding(), fSelectedExpression.getAST());
	String name= fParameterName != null ? fParameterName : guessedParameterName();
	Expression expression= fSelectedExpression instanceof ParenthesizedExpression ? ((ParenthesizedExpression)fSelectedExpression).getExpression() : fSelectedExpression;
	
	ImportRewrite importRewrite= cuRewrite.getImportRewrite();			
	ImportRewriteContext importRewriteContext= new ContextSensitiveImportRewriteContext(fSelectedExpression, importRewrite);
	String typeName= importRewrite.addImport(typeBinding, importRewriteContext);
	
	String defaultValue= null;
	if (expression instanceof ClassInstanceCreation && typeBinding.isParameterizedType()) {
		ClassInstanceCreation classInstanceCreation= (ClassInstanceCreation) expression;
		Type cicType= classInstanceCreation.getType();
		if (cicType instanceof ParameterizedType && ((ParameterizedType) cicType).typeArguments().size() == 0) {
			// expand the diamond:
			AST ast= cuRewrite.getAST();				
			Type type= importRewrite.addImport(typeBinding, ast, importRewriteContext);				
			classInstanceCreation.setType(type);    // Should not touch the original AST ...
			defaultValue= ASTNodes.asFormattedString(classInstanceCreation,  0, StubUtility.getLineDelimiterUsed(cuRewrite.getCu()), cuRewrite.getCu().getJavaProject().getOptions(true));
			classInstanceCreation.setType(cicType); // ... so let's restore it right away.
		}
	}
	
	if (defaultValue == null) {
		defaultValue= fSourceCU.getBuffer().getText(expression.getStartPosition(), expression.getLength());
	}
	fParameter= ParameterInfo.createInfoForAddedParameter(typeBinding, typeName, name, defaultValue);
	if (fArguments == null) {
		List<ParameterInfo> parameterInfos= fChangeSignatureProcessor.getParameterInfos();
		int parametersCount= parameterInfos.size();
		if (parametersCount > 0 && parameterInfos.get(parametersCount - 1).isOldVarargs())
			parameterInfos.add(parametersCount - 1, fParameter);
		else
			parameterInfos.add(fParameter);
	}
}
 

@Override
public boolean visit(ClassInstanceCreation node) {
	if (matches(node.resolveConstructorBinding())) {
		Type type= node.getType();
		fResult.add(new OccurrenceLocation(type.getStartPosition(), type.getLength(), 0, fDescription));
	}
	return super.visit(node);
}
 

@Override
public boolean visit(ClassInstanceCreation node) {
	if (isExitPoint(node.resolveConstructorBinding())) {
		Type name= node.getType();
		fResult.add(new OccurrenceLocation(name.getStartPosition(), name.getLength(), 0, fExitDescription));
	}
	return true;
}
 

public boolean isTypeCheckMethodStateSetter() {
	InheritanceTree tree = null;
	if(existingInheritanceTree != null)
		tree = existingInheritanceTree;
	else if(inheritanceTreeMatchingWithStaticTypes != null)
		tree = inheritanceTreeMatchingWithStaticTypes;
	if(tree != null) {
		DefaultMutableTreeNode root = tree.getRootNode();
		DefaultMutableTreeNode leaf = root.getFirstLeaf();
		List<String> subclassNames = new ArrayList<String>();
		while(leaf != null) {
			subclassNames.add((String)leaf.getUserObject());
			leaf = leaf.getNextLeaf();
		}
		Block typeCheckMethodBody = typeCheckMethod.getBody();
		List<Statement> statements = typeCheckMethodBody.statements();
		if(statements.size() > 0 && statements.get(0) instanceof SwitchStatement) {
			SwitchStatement switchStatement = (SwitchStatement)statements.get(0);
			List<Statement> statements2 = switchStatement.statements();
			ExpressionExtractor expressionExtractor = new ExpressionExtractor();
			int matchCounter = 0;
			for(Statement statement2 : statements2) {
				if(!(statement2 instanceof SwitchCase) && !(statement2 instanceof BreakStatement)) {
					List<Expression> classInstanceCreations = expressionExtractor.getClassInstanceCreations(statement2);
					if(classInstanceCreations.size() == 1) {
						ClassInstanceCreation classInstanceCreation = (ClassInstanceCreation)classInstanceCreations.get(0);
						Type classInstanceCreationType = classInstanceCreation.getType();
						if(subclassNames.contains(classInstanceCreationType.resolveBinding().getQualifiedName())) {
							matchCounter++;
						}
					}
				}
			}
			if(matchCounter == subclassNames.size())
				return true;
		}
	}
	return false;
}
 

public boolean visit(org.eclipse.jdt.core.dom.ThrowStatement node)
{
    if (node.getExpression() instanceof ClassInstanceCreation)
    {
        ClassInstanceCreation cic = (ClassInstanceCreation) node.getExpression();
        Type type = cic.getType();
        processType(type, TypeReferenceLocation.THROW_STATEMENT, compilationUnit.getLineNumber(node.getStartPosition()),
                    compilationUnit.getColumnNumber(cic.getStartPosition()), cic.getLength(), node.toString());
    }

    return super.visit(node);
}
 

private boolean typeObjectGetterMethodAlreadyExists() {
	InheritanceTree tree = typeCheckElimination.getInheritanceTreeMatchingWithStaticTypes();
	if(tree != null) {
		MethodDeclaration[] contextMethods = sourceTypeDeclaration.getMethods();
		DefaultMutableTreeNode rootNode = tree.getRootNode();
		String rootClassName = (String)rootNode.getUserObject();
		DefaultMutableTreeNode leaf = rootNode.getFirstLeaf();
		List<String> subclassNames = new ArrayList<String>();
		while(leaf != null) {
			subclassNames.add((String)leaf.getUserObject());
			leaf = leaf.getNextLeaf();
		}
		for(MethodDeclaration contextMethod : contextMethods) {
			Type returnType = contextMethod.getReturnType2();
			if(returnType != null) {
				if(returnType.resolveBinding().getQualifiedName().equals(rootClassName)) {
					Block contextMethodBody = contextMethod.getBody();
					if(contextMethodBody != null) {
						List<Statement> statements = contextMethodBody.statements();
						if(statements.size() > 0 && statements.get(0) instanceof SwitchStatement) {
							SwitchStatement switchStatement = (SwitchStatement)statements.get(0);
							List<Statement> statements2 = switchStatement.statements();
							int matchCounter = 0;
							for(Statement statement2 : statements2) {
								if(statement2 instanceof ReturnStatement) {
									ReturnStatement returnStatement = (ReturnStatement)statement2;
									Expression returnStatementExpression = returnStatement.getExpression();
									if(returnStatementExpression instanceof ClassInstanceCreation) {
										ClassInstanceCreation classInstanceCreation = (ClassInstanceCreation)returnStatementExpression;
										Type classInstanceCreationType = classInstanceCreation.getType();
										if(subclassNames.contains(classInstanceCreationType.resolveBinding().getQualifiedName())) {
											matchCounter++;
										}
									}
								}
							}
							if(matchCounter == subclassNames.size())
								return true;
						}
					}
				}
			}
		}
	}
	return false;
}