在创建对象时自动生成的属性 [英] Auto generate properties when creating object
问题描述
我有一个有很多特性的班,我不知道这有什么办法适用于Visual Studio,ReSharper的或其他工具来创建语法调用的属性,当我创建的对象。所以,我没有对自己经历的所有属性,只需设置的值,仅此而已。事情是这样的。
I have classes that have lots of properties, I was wondering that is there any way for Visual Studio, Resharper or other tool to create the syntax for calling the properties, when I create the object. So I dont have to go through all of properties the myself, just set the value and that's it. Something like this.
Object foo = new Object{
prop1 = ,
prop2 = ,
prop3 = };
我不知道,如果人们了解的问题。我想Visual Studio创建了二传手的属性,当我创建的对象。不是物业本身。
I don't know if people understood the question. I want Visual Studio to create the setter for the property when I create the object. Not the property itself.
推荐答案
修改 误解了这个问题。
我有一个从这一行宏
MyClass x = new MyClass();
生成
x.StrProp = "string";
x.IntProp = 0;
我用它来生成测试code,但你可以改变 PrintMemberAssignment
函数present的结果,只要你喜欢:
I use it to generate test code but you can just change the PrintMemberAssignment
function to present the result as you like:
宏看起来像这样(将其分配给键盘快捷键)
The macro looks like this (assign it to a keyboard shortcut)
Private mUsings As New HashSet(Of String)
Sub InitializeAllMembers()
Try
Dim assignmentPattern As New Regex("(?<Indent>\s*)(?:(?<DeclaredType>\S+)\s+)?(?<VariableName>[\S=]+)\s*=\s*(?<new>new)?\s*(?<CreatedType>[^\s\(]+)")
Dim selection As EnvDTE.TextSelection = CType(DTE.ActiveDocument.Selection(), EnvDTE.TextSelection)
Dim editPoint As EditPoint = selection.BottomPoint.CreateEditPoint
' Get info from current line in editor
editPoint.StartOfLine()
Dim match As Match = assignmentPattern.Match(editPoint.GetText(editPoint.LineLength))
If Not match.Success Then
MessageBox.Show("No assignment on row")
Exit Sub
End If
Dim foundDeclaredType As Boolean = match.Groups("DeclaredType").Success AndAlso match.Groups("DeclaredType").Value <> "var"
Dim foundCreatedType As Boolean = match.Groups("new").Success
If Not (foundDeclaredType OrElse foundCreatedType) Then
MessageBox.Show("Can't find type on row")
Exit Sub
End If
Dim typeToExpand As String = If(foundDeclaredType, match.Groups("DeclaredType"), match.Groups("CreatedType")).Value
' Traverse upwards in current file and record all using statements
Dim currentFunction As CodeElement = FindCodeElement(selection.ActivePoint, DTE.ActiveDocument.ProjectItem.FileCodeModel.CodeElements)
If currentFunction Is Nothing Then
MessageBox.Show("Can't find current function")
Exit Sub
End If
mUsings.Clear()
FindAllUsings(currentFunction)
' Loop all projects in solution to find requested type
Dim classType As CodeElement = DTE.Solution.Projects.Cast(Of Project) _
.Select(Function(x) FindClassInProjectItems(x.ProjectItems, typeToExpand)) _
.FirstOrDefault(Function(x) x IsNot Nothing)
If classType Is Nothing Then
MessageBox.Show("Can't find type in solution: " & typeToExpand)
Exit Sub
End If
PrintMemberAssignments(editPoint, match.Groups("Indent").Value & match.Groups("VariableName").Value, GetMembers(classType))
Catch objException As System.Exception
MessageBox.Show(objException.Message)
End Try
End Sub
' Records all using statements active for a codeelement
Sub FindAllUsings(ByVal elem As Object)
If TypeOf elem Is CodeFunction Then
FindAllUsings(CType(elem, CodeFunction).Parent)
ElseIf TypeOf elem Is CodeClass Then
mUsings.Add(CType(elem, CodeClass).FullName)
FindAllUsings(CType(elem, CodeClass).Parent)
ElseIf TypeOf elem Is CodeStruct Then
mUsings.Add(CType(elem, CodeStruct).FullName)
FindAllUsings(CType(elem, CodeStruct).Parent)
ElseIf TypeOf elem Is CodeNamespace Then
mUsings.Add(CType(elem, CodeNamespace).FullName)
For Each ns As String In CType(elem, CodeNamespace).Members.OfType(Of CodeImport) _
.Select(Function(x) x.Namespace)
mUsings.Add(ns)
Next
FindAllUsings(CType(elem, CodeNamespace).Parent)
ElseIf TypeOf elem Is FileCodeModel Then
For Each ns As String In CType(elem, FileCodeModel).CodeElements.OfType(Of CodeImport) _
.Select(Function(x) x.Namespace)
mUsings.Add(ns)
Next
End If
End Sub
' Find code element (i.e. function) for current line
Public Function FindCodeElement(ByVal caretPosition As TextPoint, ByVal elems As CodeElements) As CodeElement
If elems Is Nothing Then Return Nothing
Return elems.Cast(Of CodeElement) _
.Where(Function(x) x.StartPoint.LessThan(caretPosition) AndAlso _
x.EndPoint.GreaterThan(caretPosition)) _
.Select(Function(x) If(FindCodeElement(caretPosition, GetMembers(x)), x)) _
.FirstOrDefault()
End Function
Public Sub PrintMemberAssignments(ByVal editPoint As EditPoint, ByVal prefix As String, ByVal members As CodeElements)
For Each member As CodeElement In members
Dim text As String
If TypeOf member Is CodeProperty Then
If CType(member, CodeProperty).Setter Is Nothing Then Continue For
If CType(member, CodeProperty).Setter.Access <> vsCMAccess.vsCMAccessPublic Then Continue For
If CType(member, CodeProperty).Setter.IsShared Then Continue For
text = MemberAssignment(prefix, member.Name, CType(member, CodeProperty).Type)
ElseIf TypeOf member Is CodeVariable Then
If CType(member, CodeVariable).Access <> vsCMAccess.vsCMAccessPublic Then Continue For
If CType(member, CodeVariable).IsConstant Then Continue For
If CType(member, CodeVariable).IsShared Then Continue For
text = MemberAssignment(prefix, member.Name, CType(member, CodeVariable).Type)
Else
Continue For
End If
editPoint.EndOfLine()
editPoint.Insert(ControlChars.NewLine)
editPoint.Insert(text)
Next
End Sub
Private Function MemberAssignment(ByVal prefix As String, ByVal membername As String, ByVal typeref As EnvDTE.CodeTypeRef) As String
Dim typekind As EnvDTE.vsCMTypeRef = typeref.TypeKind
Dim value As String
If typekind = vsCMTypeRef.vsCMTypeRefArray Then
value = "{0}.{1} = new {2}[1];"
If typeref.ElementType.TypeKind = vsCMTypeRef.vsCMTypeRefCodeType Then
value = value & ControlChars.NewLine & "{0}.{1}[0] = new {2}();"
End If
Return String.Format(value, prefix, membername, TrimKnownNamespace(typeref.ElementType.AsString))
ElseIf typekind = vsCMTypeRef.vsCMTypeRefBool Then
value = "false"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefChar Then
value = "'x'"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefDecimal Then
value = "0.00m"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefDouble Then
value = "0.00"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefInt Then
value = "0"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefLong Then
value = "0"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefShort Then
value = "0"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefByte Then
value = "0"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefString Then
value = """" & membername & """"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefArray Then
value = "new " & TrimKnownNamespace(typeref.ElementType.AsString) & "[1]"
ElseIf typekind = vsCMTypeRef.vsCMTypeRefCodeType AndAlso _
typeref.AsString = "System.DateTime" Then
value = String.Format("new DateTime({0:yyyy},{0:%M},{0:%d})", DateTime.Today)
Else
value = "new " & TrimKnownNamespace(typeref.AsString) & "()"
End If
Return String.Format("{0}.{1} = {2};", prefix, membername, value)
End Function
Private Function TrimKnownNamespace(ByVal fullName As String) As String
Return fullName.Substring(mUsings.Where(Function(x) fullName.StartsWith(x) AndAlso _
fullName.Length > x.Length AndAlso _
fullName(x.Length) = "."c) _
.Select(Function(x) x.Length + 1) _
.DefaultIfEmpty(0) _
.Max())
End Function
Private Function FindClassInProjectItems(ByVal nprojectItems As ProjectItems, ByVal classname As String) As CodeElement
If nprojectItems Is Nothing Then Return Nothing
For Each nprojectitem As ProjectItem In nprojectItems
Dim found As CodeElement
If nprojectitem.Kind = EnvDTE.Constants.vsProjectItemKindPhysicalFile Then
If nprojectitem.FileCodeModel Is Nothing Then Continue For
found = FindClassInCodeElements(nprojectitem.FileCodeModel.CodeElements, classname)
If found IsNot Nothing Then Return found
End If
If nprojectitem.SubProject IsNot Nothing Then
found = FindClassInProjectItems(nprojectitem.SubProject.ProjectItems, classname)
If found IsNot Nothing Then Return found
End If
found = FindClassInProjectItems(nprojectitem.ProjectItems, classname)
If found IsNot Nothing Then Return found
Next
End Function
Private Function FindClassInCodeElements(ByVal elems As CodeElements, ByVal classname As String) As CodeElement
If elems Is Nothing Then Return Nothing
For Each elem As CodeElement In elems
If IsClassType(elem) Then
If classname = elem.Name Then Return elem
ElseIf Not TypeOf elem Is CodeNamespace Then
Continue For
End If
If mUsings.Contains(elem.FullName) Then
Dim found As CodeElement = FindClassInCodeElements(GetMembers(elem), classname)
If found IsNot Nothing Then Return found
End If
Next
Return Nothing
End Function
Private Function GetMembers(ByVal elem As CodeElement) As CodeElements
If TypeOf elem Is CodeClass Then
Return CType(elem, CodeClass).Members
ElseIf TypeOf elem Is CodeNamespace Then
Return CType(elem, CodeNamespace).Members
ElseIf TypeOf elem Is CodeStruct Then
Return CType(elem, CodeStruct).Members
ElseIf TypeOf elem Is CodeInterface Then
Return CType(elem, CodeInterface).Members
End If
Return Nothing
End Function
Private Function IsClassType(ByVal elem As CodeElement) As Boolean
Return TypeOf elem Is CodeClass OrElse TypeOf elem Is CodeStruct OrElse TypeOf elem Is CodeInterface
End Function
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