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

public boolean visit(VariableDeclarationStatement node) {
	ASTNode parent = node.getParent();
	while(parent != null){
		if(parent instanceof Block){
			break;
		}
		parent = parent.getParent();
	}
	if(parent != null) {
		int start = _unit.getLineNumber(node.getStartPosition());
		int end = _unit.getLineNumber(parent.getStartPosition() + parent.getLength());
		for (Object o : node.fragments()) {
			VariableDeclarationFragment vdf = (VariableDeclarationFragment) o;
			Pair<String, Type> pair = new Pair<String, Type>(vdf.getName().getFullyQualifiedName(), node.getType());
			Pair<Integer, Integer> range = new Pair<Integer, Integer>(start, end);
			_tmpVars.put(pair, range);
		}
	}
	return true;
}
 

private static Type extractType(org.eclipse.jdt.core.dom.VariableDeclaration variableDeclaration) {
	Type returnedVariableType = null;
	if(variableDeclaration instanceof SingleVariableDeclaration) {
		SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration)variableDeclaration;
		returnedVariableType = singleVariableDeclaration.getType();
	}
	else if(variableDeclaration instanceof VariableDeclarationFragment) {
		VariableDeclarationFragment fragment = (VariableDeclarationFragment)variableDeclaration;
		if(fragment.getParent() instanceof VariableDeclarationStatement) {
			VariableDeclarationStatement variableDeclarationStatement = (VariableDeclarationStatement)fragment.getParent();
			returnedVariableType = variableDeclarationStatement.getType();
		}
		else if(fragment.getParent() instanceof VariableDeclarationExpression) {
			VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression)fragment.getParent();
			returnedVariableType = variableDeclarationExpression.getType();
		}
		else if(fragment.getParent() instanceof FieldDeclaration) {
			FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
			returnedVariableType = fieldDeclaration.getType();
		}
	}
	return returnedVariableType;
}
 

private RefactoringStatus checkTempTypeForLocalTypeUsage(){
  	VariableDeclarationStatement vds= getTempDeclarationStatement();
  	if (vds == null)
  		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.PromoteTempToFieldRefactoring_cannot_promote);
  	Type type= 	vds.getType();
  	ITypeBinding binding= type.resolveBinding();
  	if (binding == null)
  		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.PromoteTempToFieldRefactoring_cannot_promote);

IMethodBinding declaringMethodBinding= getMethodDeclaration().resolveBinding();
ITypeBinding[] methodTypeParameters= declaringMethodBinding == null ? new ITypeBinding[0] : declaringMethodBinding.getTypeParameters();
LocalTypeAndVariableUsageAnalyzer analyzer= new LocalTypeAndVariableUsageAnalyzer(methodTypeParameters);
type.accept(analyzer);
boolean usesLocalTypes= ! analyzer.getUsageOfEnclosingNodes().isEmpty();
fTempTypeUsesClassTypeVariables= analyzer.getClassTypeVariablesUsed();
if (usesLocalTypes)
	return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.PromoteTempToFieldRefactoring_uses_type_declared_locally);
return null;
  }
 

private static Type extractType(VariableDeclaration variableDeclaration) {
	Type returnedVariableType = null;
	if(variableDeclaration instanceof SingleVariableDeclaration) {
		SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration)variableDeclaration;
		returnedVariableType = singleVariableDeclaration.getType();
	}
	else if(variableDeclaration instanceof VariableDeclarationFragment) {
		VariableDeclarationFragment fragment = (VariableDeclarationFragment)variableDeclaration;
		if(fragment.getParent() instanceof VariableDeclarationStatement) {
			VariableDeclarationStatement variableDeclarationStatement = (VariableDeclarationStatement)fragment.getParent();
			returnedVariableType = variableDeclarationStatement.getType();
		}
		else if(fragment.getParent() instanceof VariableDeclarationExpression) {
			VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression)fragment.getParent();
			returnedVariableType = variableDeclarationExpression.getType();
		}
		else if(fragment.getParent() instanceof FieldDeclaration) {
			FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
			returnedVariableType = fieldDeclaration.getType();
		}
	}
	return returnedVariableType;
}
 

public boolean visit(VariableDeclarationStatement node) {
	if(isAnonymousClass(node)){
		return true;
	}
	for (Object o : node.fragments()) {
		VariableDeclarationFragment vdf = (VariableDeclarationFragment) o;
		Type type = node.getType();
		if(vdf.getExtraDimensions() > 0){
			AST ast = AST.newAST(AST.JLS8);
			type = ast.newArrayType((Type) ASTNode.copySubtree(ast, type), vdf.getExtraDimensions());
		}
		map.put(vdf.getName().toString(), type);
	}
	return true;
}