protected SyntaxNodeVisitor(
IReadOnlyDictionary <SyntaxKind, VisitorAction> actions,
VisitorAction defaultAction)
{
_actions = actions;
_defaultAction = defaultAction;
}
public bool Enter(
FilterOperationField field,
ObjectFieldNode node,
ISyntaxNode parent,
IReadOnlyList <object> path,
IReadOnlyList <ISyntaxNode> ancestors,
Stack <QueryableClosure> closures,
bool inMemory,
out VisitorAction action
)
{
if (
field.Operation.Kind == FilterOperationKind.ArraySome ||
field.Operation.Kind == FilterOperationKind.ArrayNone ||
field.Operation.Kind == FilterOperationKind.ArrayAll
)
{
MemberExpression nestedProperty = Expression.Property(
closures.Peek().Instance.Peek(),
field.Operation.Property
);
closures.Peek().Instance.Push(nestedProperty);
Type closureType = GetTypeFor(field.Operation);
closures.Push(new QueryableClosure(closureType, "_s" + closures.Count, inMemory));
action = VisitorAction.Continue;
return(true);
}
action = VisitorAction.Default;
return(false);
}
// 请求开始无法获取用户信息
void context_BeginRequest(object sender, EventArgs e)
{
System.Web.HttpApplication app = (System.Web.HttpApplication)sender;
// url rewrite
HttpContext context = app.Context;
string actionId = System.Guid.NewGuid().ToString();
context.Response.AddHeader("ACTION-ID", actionId);
VisitorAction action = new VisitorAction(actionId, context.Request.Url.AbsoluteUri);
BlueFramework.User.Session.Current.PushAction(action);
}
internal bool method_12(VisitorAction A_0)
{
int num = 4;
switch (A_0)
{
case VisitorAction.Continue:
case VisitorAction.SkipThisElement:
return(true);
case VisitorAction.Stop:
return(false);
}
throw new InvalidOperationException(BookmarkStart.b("缩䈫䔭帯崱䌳堵ᠷ䰹唻䴽⤿㙁⭃㑅桇⭉⽋㩍㥏㵑㩓硕", num));
}
// 请求错误日志
void context_Error(object sender, EventArgs e)
{
HttpContext context = ((HttpApplication)sender).Context;
Exception ex = context.Server.GetLastError();
string error = string.Format("错误信息：{0}. 堆栈信息：{1}.", ex.Message, ex.StackTrace);
if (UserContext.CurrentVisitor != null)
{
string actionId = context.Request.Headers["ACTION-ID"];
VisitorAction action = BlueFramework.User.Session.Current.PopAction(actionId);
if (action != null)
{
action.EndTime = DateTime.Now;
action.Status = ActionStatus.ErrorRequest;
action.Content = error;
UserContext.CurrentVisitor.AddAction(action);
}
}
}
// 请求结束里面获取用户信息
void context_EndRequest(object sender, EventArgs e)
{
System.Web.HttpApplication app = (System.Web.HttpApplication)sender;
// url rewrite
HttpContext context = app.Context;
string url = context.Request.Url.AbsolutePath;
string actionId = context.Response.Headers["ACTION-ID"];
VisitorAction action = BlueFramework.User.Session.Current.PopAction(actionId);
if (UserContext.CurrentVisitor != null)
{
if (action != null)
{
action.EndTime = DateTime.Now;
action.Status = ActionStatus.EndRequest;
UserContext.CurrentVisitor.AddAction(action);
}
}
}
public bool Enter(
FilterOperationField field,
ObjectFieldNode node,
ISyntaxNode parent,
IReadOnlyList <object> path,
IReadOnlyList <ISyntaxNode> ancestors,
Stack <QueryableClosure> closures,
out VisitorAction action)
{
if (field.Operation.Kind == FilterOperationKind.Object)
{
var nestedProperty = Expression.Property(
closures.Peek().Instance.Peek(),
field.Operation.Property);
closures.Peek().Instance.Push(nestedProperty);
action = VisitorAction.Continue;
return(true);
}
action = VisitorAction.Default;
return(false);
}
public void PushAction(VisitorAction action)
{
lastActions.Add(action.ActionId, action);
}
protected SyntaxNodeVisitor(
IReadOnlyDictionary <SyntaxKind, VisitorAction> actions)
{
_actions = actions;
_defaultAction = VisitorAction.Skip;
}
protected SyntaxNodeVisitor(VisitorAction defaultAction)
{
_actions = null;
_defaultAction = defaultAction;
}
protected SyntaxNodeVisitor()
{
_actions = null;
_defaultAction = VisitorAction.Skip;
}
public static void Accept(
this ISyntaxNode node,
ISyntaxNodeVisitor visitor,
IVisitationMap visitationMap,
Func <ISyntaxNode, VisitorAction> defaultAction)
{
if (node is null)
{
throw new ArgumentNullException(nameof(node));
}
if (visitor is null)
{
throw new ArgumentNullException(nameof(visitor));
}
if (visitationMap is null)
{
throw new ArgumentNullException(nameof(visitationMap));
}
var path = new List <object>();
var ancestors = new List <SyntaxNodeInfo>();
var ancestorNodes = new List <ISyntaxNode>();
var level = new List <List <SyntaxNodeInfo> >();
var root = new List <SyntaxNodeInfo>();
root.Push(new SyntaxNodeInfo(node, null));
level.Push(root);
int index = 0;
while (level.Count != 0)
{
bool isLeaving = level[index].Count == 0;
VisitorAction action = default;
SyntaxNodeInfo parent = default;
SyntaxNodeInfo current = default;
if (isLeaving)
{
if (index == 0)
{
break;
}
level.Pop();
ancestorNodes.Pop();
current = ancestors.Pop();
parent = ancestors.Count == 0
? default
: ancestors.Peek();
action = Leave(
visitor,
current.Node,
parent.Node,
path,
ancestorNodes);
if (action == VisitorAction.Default)
{
action = defaultAction?.Invoke(current.Node)
?? VisitorAction.Skip;
}
if (current.Name != null)
{
path.Pop();
}
if (current.Index.HasValue)
{
path.Pop();
}
index--;
}
else
{
current = level[index].Pop();
if (current.Name != null)
{
path.Push(current.Name);
}
if (current.Index.HasValue)
{
path.Push(current.Index.Value);
}
action = Enter(
visitor,
current.Node,
parent.Node,
path,
ancestorNodes);
if (action == VisitorAction.Default)
{
action = defaultAction?.Invoke(current.Node)
?? VisitorAction.Skip;
}
if (action == VisitorAction.Continue)
{
level.Push(GetChildren(current.Node, visitationMap));
}
else if (action == VisitorAction.Skip)
{
// TODO : replace with empty
level.Push(new List <SyntaxNodeInfo>());
}
parent = current;
ancestors.Push(current);
ancestorNodes.Push(current.Node);
index++;
}
if (action == VisitorAction.Break)
{
break;
}
}
level.Clear();
}
