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' Licensed to the .NET Foundation under one or more agreements.
' The .NET Foundation licenses this file to you under the MIT license.
' See the LICENSE file in the project root for more information.
Imports System.Collections.Immutable
Imports System.Runtime.InteropServices
Imports Microsoft.CodeAnalysis.PooledObjects
Imports Microsoft.CodeAnalysis.VisualBasic.Emit
Imports Microsoft.CodeAnalysis.VisualBasic.Symbols
Namespace Microsoft.CodeAnalysis.VisualBasic.Symbols
Partial Friend Class SourceNamedTypeSymbol
''' <summary>
''' Encapsulates ComClass specific data and analysis.
''' </summary>
Private Class ComClassData
' Attribute values.
Public ReadOnly ClassId As String
Public ReadOnly InterfaceId As String
Public ReadOnly EventId As String
Public ReadOnly InterfaceShadows As Boolean
' Data created in response to the attribute values
''' <summary>
''' Synthesized ComClass interfaces, can have the following values:
''' Null - not yet initialized,
''' Empty - there are no synthesized ComClass interfaces.
''' one interface - only class interface is synthesized.
''' two interfaces - both class interface and event interface are synthesized. Class interface is followed by the event interface.
''' </summary>
Private _syntheticInterfaces As ImmutableArray(Of NamedTypeSymbol)
Public Sub New(attrData As VisualBasicAttributeData)
Dim args As ImmutableArray(Of TypedConstant) = attrData.CommonConstructorArguments
If args.Length > 0 Then
Dim strVal As String = If(args(0).Kind <> TypedConstantKind.Array, TryCast(args(0).ValueInternal, String), Nothing)
If Not String.IsNullOrEmpty(strVal) Then
Me.ClassId = strVal
End If
If args.Length > 1 Then
strVal = If(args(1).Kind <> TypedConstantKind.Array, TryCast(args(1).ValueInternal, String), Nothing)
If Not String.IsNullOrEmpty(strVal) Then
Me.InterfaceId = strVal
End If
If args.Length > 2 Then
strVal = If(args(2).Kind <> TypedConstantKind.Array, TryCast(args(2).ValueInternal, String), Nothing)
If Not String.IsNullOrEmpty(strVal) Then
Me.EventId = strVal
End If
End If
End If
End If
Me.InterfaceShadows = attrData.DecodeNamedArgument("InterfaceShadows", Microsoft.CodeAnalysis.SpecialType.System_Boolean, False)
End Sub
Public Function GetSynthesizedInterfaces() As ImmutableArray(Of NamedTypeSymbol)
Debug.Assert(Not _syntheticInterfaces.IsDefault)
Return _syntheticInterfaces
End Function
''' <summary>
''' Returns symbol for the event interface or Nothing when event interface is not synthesized.
''' </summary>
Public Function GetSynthesizedEventInterface() As NamedTypeSymbol
Debug.Assert(Not _syntheticInterfaces.IsDefault)
If _syntheticInterfaces.Length > 1 Then
Return _syntheticInterfaces(1)
End If
Return Nothing
End Function
Public Function GetSynthesizedImplements() As IEnumerable(Of NamedTypeSymbol)
Debug.Assert(Not _syntheticInterfaces.IsDefault)
If _syntheticInterfaces.IsEmpty Then
Return Nothing
End If
Return SpecializedCollections.SingletonEnumerable(Of NamedTypeSymbol)(_syntheticInterfaces(0))
End Function
Public Function GetCorrespondingComClassInterfaceMethod(method As MethodSymbol) As MethodSymbol
Debug.Assert(Not _syntheticInterfaces.IsDefault)
If _syntheticInterfaces.IsEmpty Then
Return Nothing
End If
For Each m In _syntheticInterfaces(0).GetMembers()
If m.Kind = SymbolKind.Method Then
Dim comMethod = DirectCast(m, SynthesizedComMethod)
If comMethod.ClonedFrom Is method Then
Return comMethod
End If
End If
Next
Return Nothing
End Function
''' <summary>
''' Perform ComClass specific validation and prepare for metadata generation.
''' </summary>
Public Sub PerformComClassAnalysis(comClass As SourceNamedTypeSymbol)
If Not _syntheticInterfaces.IsDefault Then
Return
End If
Dim diagnostics = BindingDiagnosticBag.GetInstance()
Dim interfaces As ImmutableArray(Of NamedTypeSymbol) = ImmutableArray(Of NamedTypeSymbol).Empty
Dim interfaceMembers = ArrayBuilder(Of KeyValuePair(Of Symbol, Integer)).GetInstance()
Dim eventMembers = ArrayBuilder(Of KeyValuePair(Of EventSymbol, Integer)).GetInstance()
' Validate the class guid
ValidateComClassGuid(comClass, ClassId, diagnostics)
' Validate the interface guid
' Validate the event guid
Dim interfaceGuid As Guid
Dim eventGuid As Guid
' Note, using [And] rather than [AndAlso] to make sure both guids are always validated.
If ValidateComClassGuid(comClass, InterfaceId, diagnostics, interfaceGuid) And ValidateComClassGuid(comClass, EventId, diagnostics, eventGuid) Then
' Can't specify the same value for iid and eventsid
' It is not an error to reuse the classid guid though.
If InterfaceId IsNot Nothing AndAlso EventId IsNot Nothing AndAlso interfaceGuid = eventGuid Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassDuplicateGuids1, comClass.Name)
End If
End If
' Can't specify ComClass and Guid
If comClass.HasGuidAttribute() Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassAndReservedAttribute1, AttributeDescription.GuidAttribute.Name)
End If
' Can't specify ComClass and ClassInterface
If comClass.HasClassInterfaceAttribute() Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassAndReservedAttribute1, AttributeDescription.ClassInterfaceAttribute.Name)
End If
' Can't specify ComClass and ComSourceInterfaces
If comClass.HasComSourceInterfacesAttribute() Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassAndReservedAttribute1, AttributeDescription.ComSourceInterfacesAttribute.Name)
End If
' Can't specify ComClass and ComVisible(False)
If Not GetComVisibleState(comClass) Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassAndReservedAttribute1, AttributeDescription.ComVisibleAttribute.Name & "(False)")
End If
'Class must be Public
If comClass.DeclaredAccessibility <> Accessibility.Public Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassRequiresPublicClass1, comClass.Name)
Else
Dim container As NamedTypeSymbol = comClass.ContainingType
While container IsNot Nothing
If container.DeclaredAccessibility <> Accessibility.Public Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassRequiresPublicClass2,
comClass.Name, container.Name)
Exit While
End If
container = container.ContainingType
End While
End If
' Class cannot be Abstract
If comClass.IsMustInherit Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_ComClassCantBeAbstract0)
End If
' Check for nest type name collisions on this class and
' on all base classes.
CheckForNameCollisions(comClass, diagnostics)
Dim haveDefaultProperty As Boolean
GetComClassMembers(comClass, interfaceMembers, eventMembers, haveDefaultProperty, diagnostics)
If interfaceMembers.Count = 0 AndAlso eventMembers.Count = 0 Then
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.WRN_ComClassNoMembers1, comClass.Name)
ElseIf Not diagnostics.HasAnyErrors() Then
Dim comClassInterface As NamedTypeSymbol = New SynthesizedComInterface(comClass, interfaceMembers)
If eventMembers.Count = 0 Then
interfaces = ImmutableArray.Create(comClassInterface)
Else
interfaces = ImmutableArray.Create(Of NamedTypeSymbol)(comClassInterface,
New SynthesizedComInterface(comClass, eventMembers))
End If
End If
' If any Id is not empty, we should be able to emit GuidAttribute.
If ClassId IsNot Nothing OrElse
(InterfaceId IsNot Nothing AndAlso interfaces.Length > 0) OrElse
(EventId IsNot Nothing AndAlso interfaces.Length > 1) Then
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_GuidAttribute__ctor,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
End If
' Should be able to emit ClassInterfaceAttribute.
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_ClassInterfaceAttribute__ctorClassInterfaceType,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
' Should be able to emit ComSourceInterfacesAttribute and InterfaceTypeAttribute if there is an event interface.
If interfaces.Length > 1 Then
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_ComSourceInterfacesAttribute__ctorString,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_InterfaceTypeAttribute__ctorInt16,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
End If
' Should be able to emit ComVisibleAttribute on interfaces.
If interfaces.Length > 0 Then
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_ComVisibleAttribute__ctor,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
End If
Dim synthesizeDispIds As Boolean = False
For Each pair In interfaceMembers
If pair.Key IsNot Nothing AndAlso pair.Value = ReservedDispId.None Then
synthesizeDispIds = True
Exit For
End If
Next
If Not synthesizeDispIds Then
For Each pair In eventMembers
Debug.Assert(pair.Key IsNot Nothing)
If pair.Value = ReservedDispId.None Then
synthesizeDispIds = True
Exit For
End If
Next
End If
If synthesizeDispIds Then
' Should be able to emit DispIdAttribute on members.
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Runtime_InteropServices_DispIdAttribute__ctor,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
End If
If haveDefaultProperty Then
' Should be able to emit DefaultMemberAttribute.
Binder.ReportUseSiteInfoForSynthesizedAttribute(WellKnownMember.System_Reflection_DefaultMemberAttribute__ctor,
comClass.DeclaringCompilation,
comClass.Locations(0),
diagnostics)
End If
interfaceMembers.Free()
eventMembers.Free()
comClass.ContainingSourceModule.AtomicStoreArrayAndDiagnostics(_syntheticInterfaces, interfaces, diagnostics)
diagnostics.Free()
End Sub
Private Shared Function ValidateComClassGuid(comClass As SourceNamedTypeSymbol, id As String, diagnostics As BindingDiagnosticBag, <Out> Optional ByRef guidVal As Guid = Nothing) As Boolean
If id IsNot Nothing Then
If Not Guid.TryParseExact(id, "D", guidVal) Then '32 digits separated by hyphens: 00000000-0000-0000-0000-000000000000
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.ERR_BadAttributeUuid2, AttributeDescription.VisualBasicComClassAttribute.Name, id)
Return False
End If
Else
guidVal = Nothing
End If
Return True
End Function
''' <summary>
''' Return False if ComVisibleAttribute(False) is applied to the symbol, True otherwise.
''' </summary>
Private Shared Function GetComVisibleState(target As Symbol) As Boolean
' So far this information is used only by ComClass feature, therefore, I do not believe
' it is worth to intercept this attribute in DecodeWellKnownAttribute and cache the fact of attribute's
' presence and its value. If we start caching that information, implementation of this function
' should change to take advantage of the cache.
Dim attrData As ImmutableArray(Of VisualBasicAttributeData) = target.GetAttributes()
Dim comVisible = attrData.IndexOfAttribute(AttributeDescription.ComVisibleAttribute)
If comVisible > -1 Then
Dim typedValue As TypedConstant = attrData(comVisible).CommonConstructorArguments(0)
Dim value As Object = If(typedValue.Kind <> TypedConstantKind.Array, typedValue.ValueInternal, Nothing)
If value Is Nothing OrElse (TypeOf value Is Boolean AndAlso Not DirectCast(value, Boolean)) Then
Return False
Else
' We will return True in case of type mismatch as well, that should be fine as an error will be reported elsewhere.
Return True
End If
End If
Return True
End Function
Private Sub CheckForNameCollisions(comClass As SourceNamedTypeSymbol, diagnostics As BindingDiagnosticBag)
For i As Integer = 0 To 1
Dim interfaceName As String = If(i = 0, "_", "__") & comClass.Name
For Each member As Symbol In comClass.GetMembers(interfaceName)
' Error--name collision on this class
Binder.ReportDiagnostic(diagnostics, member.Locations(0), ERRID.ERR_MemberConflictWithSynth4,
SyntaxFacts.GetText(SyntaxKind.InterfaceKeyword) & " " & interfaceName,
AttributeDescription.VisualBasicComClassAttribute.Name,
SyntaxFacts.GetText(SyntaxKind.ClassKeyword),
comClass.Name)
Next
If Not Me.InterfaceShadows Then
Dim container As NamedTypeSymbol = comClass.BaseTypeNoUseSiteDiagnostics
While container IsNot Nothing
For Each member As Symbol In container.GetMembers(interfaceName)
If member.DeclaredAccessibility <> Accessibility.Private Then
' Warning--name shadows a base class member
Binder.ReportDiagnostic(diagnostics, comClass.Locations(0), ERRID.WRN_ComClassInterfaceShadows5,
comClass.Name,
SyntaxFacts.GetText(SyntaxKind.InterfaceKeyword),
interfaceName,
SyntaxFacts.GetText(SyntaxKind.ClassKeyword),
container)
End If
Next
container = container.BaseTypeNoUseSiteDiagnostics
End While
End If
Next
End Sub
Private Sub GetComClassMembers(
comClass As SourceNamedTypeSymbol,
interfaceMembers As ArrayBuilder(Of KeyValuePair(Of Symbol, Integer)),
eventMembers As ArrayBuilder(Of KeyValuePair(Of EventSymbol, Integer)),
<Out> ByRef haveDefaultProperty As Boolean,
diagnostics As BindingDiagnosticBag
)
haveDefaultProperty = False
For Each member As Symbol In comClass.GetMembers()
If member.IsShared OrElse member.DeclaredAccessibility <> Accessibility.Public OrElse
member.IsImplicitlyDeclared Then
Continue For
End If
Dim memberKind As SymbolKind = member.Kind
' Do some early filtering based on kind to avoid looking at attributes.
Select Case memberKind
Case SymbolKind.Field, SymbolKind.NamedType
Continue For
Case SymbolKind.Method
If DirectCast(member, MethodSymbol).MethodKind <> MethodKind.Ordinary Then
Continue For
End If
End Select
' Filter out members with <ComVisible(False)>
If Not GetComVisibleState(member) Then
Continue For
End If
Select Case memberKind
Case SymbolKind.Property
Dim prop = DirectCast(member, PropertySymbol)
If prop.IsWithEvents Then
Continue For
End If
Dim getter As MethodSymbol = prop.GetMethod
Dim setter As MethodSymbol = prop.SetMethod
If getter IsNot Nothing Then
If getter.IsImplicitlyDeclared Then
Continue For ' Note, this will exclude auto-properties (matching Dev10 behavior).
End If
If getter.DeclaredAccessibility <> Accessibility.Public OrElse Not GetComVisibleState(getter) Then
getter = Nothing
End If
End If
If setter IsNot Nothing Then
If setter.IsImplicitlyDeclared Then
Continue For ' Note, this will exclude auto-properties (matching Dev10 behavior).
End If
If setter.DeclaredAccessibility <> Accessibility.Public OrElse Not GetComVisibleState(setter) Then
setter = Nothing
End If
End If
If getter Is Nothing AndAlso setter Is Nothing Then
Continue For
End If
' Warn for Property X As Object : Set(ByVal o As Object)
If prop.Type.IsObjectType() AndAlso prop.SetMethod IsNot Nothing Then
Binder.ReportDiagnostic(diagnostics, prop.Locations(0), ERRID.WRN_ComClassPropertySetObject1, prop)
End If
interfaceMembers.Add(New KeyValuePair(Of Symbol, Integer)(prop, GetUserSpecifiedDispId(prop, diagnostics)))
If prop.IsDefault Then
haveDefaultProperty = True
End If
' Accessors follow the property, first getter, then setter.
' If accessor shouldn't be cloned, Nothing is stored.
interfaceMembers.Add(New KeyValuePair(Of Symbol, Integer)(getter,
If(getter Is Nothing,
ReservedDispId.None,
GetUserSpecifiedDispId(getter, diagnostics))))
interfaceMembers.Add(New KeyValuePair(Of Symbol, Integer)(setter,
If(setter Is Nothing,
ReservedDispId.None,
GetUserSpecifiedDispId(setter, diagnostics))))
Case SymbolKind.Event
eventMembers.Add(New KeyValuePair(Of EventSymbol, Integer)(DirectCast(member, EventSymbol), GetUserSpecifiedDispId(member, diagnostics)))
Case SymbolKind.Method
If DirectCast(member, MethodSymbol).IsGenericMethod Then
' Generic methods cannot be exposed to COM
Binder.ReportDiagnostic(diagnostics, member.Locations(0), ERRID.ERR_ComClassGenericMethod)
End If
interfaceMembers.Add(New KeyValuePair(Of Symbol, Integer)(member, GetUserSpecifiedDispId(member, diagnostics)))
Case Else
Throw ExceptionUtilities.UnexpectedValue(memberKind)
End Select
Next
End Sub
Private Enum ReservedDispId
None = -1
DISPID_VALUE = 0
DISPID_NEWENUM = -4
End Enum
''' <summary>
''' Returns user defined DispId for a member or ReservedDispId.None if none specified.
''' Also reports errors for reserved DispIds.
''' </summary>
Private Shared Function GetUserSpecifiedDispId(target As Symbol, diagnostics As BindingDiagnosticBag) As Integer
' So far this information is used only by ComClass feature, therefore, I do not believe
' it is worth to intercept this attribute in DecodeWellKnownAttribute and cache the fact of attribute's
' presence and its value. If we start caching that information, implementation of this function
' should change to take advantage of the cache.
Dim attrData As ImmutableArray(Of VisualBasicAttributeData) = target.GetAttributes()
Dim dispIdIndex = attrData.IndexOfAttribute(AttributeDescription.DispIdAttribute)
If dispIdIndex > -1 Then
Dim typedValue As TypedConstant = attrData(dispIdIndex).CommonConstructorArguments(0)
Dim value As Object = If(typedValue.Kind <> TypedConstantKind.Array, typedValue.ValueInternal, Nothing)
If value IsNot Nothing AndAlso TypeOf value Is Integer Then
Dim dispId = DirectCast(value, Integer)
' Validate that the user has not used zero which is reserved
' for the Default property.
If dispId = 0 Then
If target.Kind <> SymbolKind.Property OrElse Not DirectCast(target, PropertySymbol).IsDefault Then
Binder.ReportDiagnostic(diagnostics, target.Locations(0), ERRID.ERR_ComClassReservedDispIdZero1, target.Name)
End If
' Validate that the user has not used negative DispId's which
' are reserved by COM and the runtime.
ElseIf dispId < 0 Then
Binder.ReportDiagnostic(diagnostics, target.Locations(0), ERRID.ERR_ComClassReservedDispId1, target.Name)
End If
Return dispId
End If
End If
Return ReservedDispId.None
End Function
Private NotInheritable Class SynthesizedComInterface
Inherits NamedTypeSymbol
Private ReadOnly _comClass As SourceNamedTypeSymbol
Private ReadOnly _isEventInterface As Boolean
Private ReadOnly _members As ImmutableArray(Of Symbol)
Private ReadOnly _defaultMemberName As String
Public Sub New(comClass As SourceNamedTypeSymbol, interfaceMembers As ArrayBuilder(Of KeyValuePair(Of Symbol, Integer)))
Debug.Assert(Not comClass.IsGenericType)
_comClass = comClass
_isEventInterface = False
Dim usedDispIds As New HashSet(Of Integer)()
For Each pair As KeyValuePair(Of Symbol, Integer) In interfaceMembers
If pair.Value <> ReservedDispId.None Then
usedDispIds.Add(pair.Value)
End If
Next
Dim members = ArrayBuilder(Of Symbol).GetInstance()
' Assign the dispids, avoiding the ones that the
' user has already set. Start with DispId 1.
Dim nextDispId As Integer = 1
Const getEnumeratorName As String = "GetEnumerator"
For i As Integer = 0 To interfaceMembers.Count - 1
Dim pair As KeyValuePair(Of Symbol, Integer) = interfaceMembers(i)
Dim member As Symbol = pair.Key
Dim dispId As Integer = pair.Value
Dim synthesizedDispId As Integer
Select Case member.Kind
Case SymbolKind.Method
Dim method = DirectCast(member, MethodSymbol)
Debug.Assert(method.MethodKind = MethodKind.Ordinary)
If dispId = ReservedDispId.None Then
synthesizedDispId = GetNextAvailableDispId(usedDispIds, nextDispId)
' Check for special dispids. Do this after incrementing NextDispId
' so we will keep the nth item as DispId n.
If CaseInsensitiveComparison.Equals(method.Name, getEnumeratorName) AndAlso
method.ParameterCount = 0 AndAlso
method.ReturnType.SpecialType = SpecialType.System_Collections_IEnumerator Then
synthesizedDispId = ReservedDispId.DISPID_NEWENUM
End If
Else
synthesizedDispId = ReservedDispId.None ' Do not synthesize.
End If
members.Add(New SynthesizedComMethod(Me, method, synthesizedDispId))
Case SymbolKind.Property
Dim prop As PropertySymbol = DirectCast(member, PropertySymbol)
Dim getter As SynthesizedComMethod = Nothing
Dim setter As SynthesizedComMethod = Nothing
If _defaultMemberName Is Nothing AndAlso prop.IsDefault Then
_defaultMemberName = prop.Name
End If
' Accessors follow the property, first getter, then setter.
' If accessor shouldn't be cloned, Nothing is stored.
i += 1
Dim getterPair As KeyValuePair(Of Symbol, Integer) = interfaceMembers(i)
i += 1
Dim setterPair As KeyValuePair(Of Symbol, Integer) = interfaceMembers(i)
If dispId = ReservedDispId.None OrElse
(getterPair.Key IsNot Nothing AndAlso getterPair.Value = ReservedDispId.None) OrElse
(setterPair.Key IsNot Nothing AndAlso setterPair.Value = ReservedDispId.None) Then
synthesizedDispId = GetNextAvailableDispId(usedDispIds, nextDispId)
' Check for special dispids. Do this after incrementing NextDispId
' so we will keep the nth item as DispId n.
If CaseInsensitiveComparison.Equals(prop.Name, getEnumeratorName) AndAlso
prop.ParameterCount = 0 AndAlso
prop.Type.SpecialType = SpecialType.System_Collections_IEnumerator Then
synthesizedDispId = ReservedDispId.DISPID_NEWENUM
ElseIf prop.IsDefault Then
synthesizedDispId = ReservedDispId.DISPID_VALUE
ElseIf dispId <> ReservedDispId.None Then
synthesizedDispId = dispId ' use the user's Property DispId for the Get and Set
End If
Else
synthesizedDispId = ReservedDispId.None
End If
If getterPair.Key IsNot Nothing Then
getter = New SynthesizedComMethod(Me, DirectCast(getterPair.Key, MethodSymbol),
If(getterPair.Value = ReservedDispId.None, synthesizedDispId, ReservedDispId.None))
End If
If setterPair.Key IsNot Nothing Then
setter = New SynthesizedComMethod(Me, DirectCast(setterPair.Key, MethodSymbol),
If(setterPair.Value = ReservedDispId.None, synthesizedDispId, ReservedDispId.None))
End If
If getter IsNot Nothing Then
If setter IsNot Nothing Then
If LexicalOrderSymbolComparer.Instance.Compare(prop.GetMethod, prop.SetMethod) <= 0 Then
members.Add(getter)
members.Add(setter)
Else
members.Add(setter)
members.Add(getter)
End If
Else
members.Add(getter)
End If
Else
Debug.Assert(setter IsNot Nothing)
members.Add(setter)
End If
members.Add(New SynthesizedComProperty(Me, prop, getter, setter,
If(dispId = ReservedDispId.None, synthesizedDispId, ReservedDispId.None)))
Case Else
Throw ExceptionUtilities.UnexpectedValue(member.Kind)
End Select
Next
_members = members.ToImmutableAndFree()
End Sub
Public Overrides Function GetHashCode() As Integer
Return System.Runtime.CompilerServices.RuntimeHelpers.GetHashCode(Me)
End Function
Public Overrides Function Equals(other As TypeSymbol, comparison As TypeCompareKind) As Boolean
Return Me Is other
End Function
Private Shared Function GetNextAvailableDispId(
usedDispIds As HashSet(Of Integer),
<[In], Out> ByRef nextDispId As Integer
) As Integer
Dim dispId As Integer = nextDispId
While usedDispIds.Contains(dispId)
dispId += 1
End While
nextDispId = dispId + 1
Return dispId
End Function
Public Sub New(comClass As SourceNamedTypeSymbol, interfaceMembers As ArrayBuilder(Of KeyValuePair(Of EventSymbol, Integer)))
_comClass = comClass
_isEventInterface = True
Dim usedDispIds As New HashSet(Of Integer)()
For Each pair As KeyValuePair(Of EventSymbol, Integer) In interfaceMembers
If pair.Value <> ReservedDispId.None Then
usedDispIds.Add(pair.Value)
End If
Next
Dim members = ArrayBuilder(Of Symbol).GetInstance()
' Assign the dispids, avoiding the ones that the
' user has already set. Start with DispId 1.
Dim nextDispId As Integer = 1
For Each pair As KeyValuePair(Of EventSymbol, Integer) In interfaceMembers
Dim member As EventSymbol = pair.Key
If member.Type.IsDelegateType() Then
Dim invoke As MethodSymbol = DirectCast(member.Type, NamedTypeSymbol).DelegateInvokeMethod
If invoke IsNot Nothing Then
Dim synthesizedDispId As Integer
If pair.Value = ReservedDispId.None Then
synthesizedDispId = GetNextAvailableDispId(usedDispIds, nextDispId)
Else
synthesizedDispId = ReservedDispId.None ' Do not synthesize.
End If
members.Add(New SynthesizedComEventMethod(Me, member, invoke, synthesizedDispId))
End If
End If
Next
_members = members.ToImmutableAndFree()
End Sub
Public ReadOnly Property IsEventInterface As Boolean
Get
Return _isEventInterface
End Get
End Property
Public ReadOnly Property ComClass As SourceNamedTypeSymbol
Get
Return _comClass
End Get
End Property
Public Overrides ReadOnly Property Arity As Integer
Get
Return 0
End Get
End Property
Friend Overrides ReadOnly Property CanConstruct As Boolean
Get
Return False
End Get
End Property
Public Overloads Overrides Function Construct(typeArguments As ImmutableArray(Of TypeSymbol)) As NamedTypeSymbol
Throw ExceptionUtilities.Unreachable
End Function
Public Overrides ReadOnly Property ConstructedFrom As NamedTypeSymbol
Get
Return Me
End Get
End Property
Public Overrides ReadOnly Property ContainingSymbol As Symbol
Get
Return _comClass
End Get
End Property
Public Overrides ReadOnly Property DeclaredAccessibility As Accessibility
Get
Return Accessibility.Public
End Get
End Property
Public Overrides ReadOnly Property DeclaringSyntaxReferences As ImmutableArray(Of SyntaxReference)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property DefaultPropertyName As String
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property ObsoleteAttributeData As ObsoleteAttributeData
Get
Return Nothing
End Get
End Property
Friend Overrides Sub GenerateDeclarationErrors(cancellationToken As Threading.CancellationToken)
Throw ExceptionUtilities.Unreachable
End Sub
Public Overloads Overrides Function GetMembers() As ImmutableArray(Of Symbol)
Return _members
End Function
Public Overloads Overrides Function GetMembers(name As String) As ImmutableArray(Of Symbol)
Throw ExceptionUtilities.Unreachable
End Function
Public Overloads Overrides Function GetTypeMembers() As ImmutableArray(Of NamedTypeSymbol)
Return ImmutableArray(Of NamedTypeSymbol).Empty
End Function
Public Overloads Overrides Function GetTypeMembers(name As String) As ImmutableArray(Of NamedTypeSymbol)
Throw ExceptionUtilities.Unreachable
End Function
Public Overloads Overrides Function GetTypeMembers(name As String, arity As Integer) As ImmutableArray(Of NamedTypeSymbol)
Throw ExceptionUtilities.Unreachable
End Function
Friend Overrides Function GetFieldsToEmit() As IEnumerable(Of FieldSymbol)
Return SpecializedCollections.EmptyEnumerable(Of FieldSymbol)()
End Function
Friend Overrides ReadOnly Property HasCodeAnalysisEmbeddedAttribute As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property HasVisualBasicEmbeddedAttribute As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property IsExtensibleInterfaceNoUseSiteDiagnostics As Boolean
Get
Return False
End Get
End Property
Friend Overrides ReadOnly Property IsWindowsRuntimeImport As Boolean
Get
Return False
End Get
End Property
Friend Overrides ReadOnly Property ShouldAddWinRTMembers As Boolean
Get
Return False
End Get
End Property
Friend Overrides ReadOnly Property IsComImport As Boolean
Get
Return False
End Get
End Property
Friend Overrides ReadOnly Property CoClassType As TypeSymbol
Get
Return Nothing
End Get
End Property
Friend Overrides Function GetAppliedConditionalSymbols() As ImmutableArray(Of String)
Return ImmutableArray(Of String).Empty
End Function
Friend Overrides Function GetAttributeUsageInfo() As AttributeUsageInfo
Throw ExceptionUtilities.Unreachable
End Function
Friend Overrides ReadOnly Property HasDeclarativeSecurity As Boolean
Get
Return False
End Get
End Property
Friend Overrides Function GetSecurityInformation() As IEnumerable(Of Microsoft.Cci.SecurityAttribute)
Throw ExceptionUtilities.Unreachable
End Function
Friend Overrides Function InternalSubstituteTypeParameters(substitution As TypeSubstitution) As TypeWithModifiers
Throw ExceptionUtilities.Unreachable
End Function
Public Overrides ReadOnly Property IsMustInherit As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsNotInheritable As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property Locations As ImmutableArray(Of Location)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides Function MakeAcyclicBaseType(diagnostics As BindingDiagnosticBag) As NamedTypeSymbol
Return Nothing
End Function
Friend Overrides Function MakeAcyclicInterfaces(diagnostics As BindingDiagnosticBag) As ImmutableArray(Of NamedTypeSymbol)
Return ImmutableArray(Of NamedTypeSymbol).Empty
End Function
Friend Overrides Function MakeDeclaredBase(basesBeingResolved As BasesBeingResolved, diagnostics As BindingDiagnosticBag) As NamedTypeSymbol
Return Nothing
End Function
Friend Overrides Function MakeDeclaredInterfaces(basesBeingResolved As BasesBeingResolved, diagnostics As BindingDiagnosticBag) As ImmutableArray(Of NamedTypeSymbol)
Return ImmutableArray(Of NamedTypeSymbol).Empty
End Function
Friend Overrides ReadOnly Property MangleName As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property MemberNames As IEnumerable(Of String)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property MightContainExtensionMethods As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property Name As String
Get
Return If(_isEventInterface, "__", "_") & _comClass.Name
End Get
End Property
Friend Overrides ReadOnly Property HasSpecialName As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsSerializable As Boolean
Get
Return False
End Get
End Property
Friend Overrides ReadOnly Property Layout As TypeLayout
Get
Return Nothing
End Get
End Property
Friend Overrides ReadOnly Property MarshallingCharSet As CharSet
Get
Return DefaultMarshallingCharSet
End Get
End Property
Friend Overrides ReadOnly Property TypeArgumentsNoUseSiteDiagnostics As ImmutableArray(Of TypeSymbol)
Get
Return ImmutableArray(Of TypeSymbol).Empty
End Get
End Property
Public Overrides Function GetTypeArgumentCustomModifiers(ordinal As Integer) As ImmutableArray(Of CustomModifier)
Return GetEmptyTypeArgumentCustomModifiers(ordinal)
End Function
Friend Overrides ReadOnly Property HasTypeArgumentsCustomModifiers As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property TypeKind As TypeKind
Get
Return TypeKind.Interface
End Get
End Property
Friend Overrides ReadOnly Property IsInterface As Boolean
Get
Return True
End Get
End Property
Public Overrides ReadOnly Property TypeParameters As ImmutableArray(Of TypeParameterSymbol)
Get
Return ImmutableArray(Of TypeParameterSymbol).Empty
End Get
End Property
Friend Overrides ReadOnly Property TypeSubstitution As TypeSubstitution
Get
Return Nothing
End Get
End Property
Public Overrides Function GetAttributes() As ImmutableArray(Of VisualBasicAttributeData)
Return ImmutableArray(Of VisualBasicAttributeData).Empty
End Function
Friend Overrides Sub AddSynthesizedAttributes(moduleBuilder As PEModuleBuilder, ByRef attributes As ArrayBuilder(Of SynthesizedAttributeData))
MyBase.AddSynthesizedAttributes(moduleBuilder, attributes)
Dim compilation As VisualBasicCompilation = _comClass.DeclaringCompilation
Dim id As String = If(_isEventInterface, _comClass._comClassData.EventId, _comClass._comClassData.InterfaceId)
If id IsNot Nothing Then
AddSynthesizedAttribute(attributes, compilation.TrySynthesizeAttribute(
WellKnownMember.System_Runtime_InteropServices_GuidAttribute__ctor,
ImmutableArray.Create(
New TypedConstant(_comClass.GetSpecialType(SpecialType.System_String), TypedConstantKind.Primitive, id))))
End If
If _isEventInterface Then
AddSynthesizedAttribute(attributes, compilation.TrySynthesizeAttribute(
WellKnownMember.System_Runtime_InteropServices_InterfaceTypeAttribute__ctorInt16,
ImmutableArray.Create(
New TypedConstant(_comClass.GetSpecialType(SpecialType.System_Int16),
TypedConstantKind.Primitive,
CShort(Cci.Constants.ComInterfaceType_InterfaceIsIDispatch)))))
End If
AddSynthesizedAttribute(attributes, compilation.TrySynthesizeAttribute(
WellKnownMember.System_Runtime_InteropServices_ComVisibleAttribute__ctor,
ImmutableArray.Create(New TypedConstant(_comClass.GetSpecialType(SpecialType.System_Boolean),
TypedConstantKind.Primitive,
value:=True))))
If _defaultMemberName IsNot Nothing Then
AddSynthesizedAttribute(attributes, compilation.TrySynthesizeAttribute(
WellKnownMember.System_Reflection_DefaultMemberAttribute__ctor,
ImmutableArray.Create(New TypedConstant(_comClass.GetSpecialType(SpecialType.System_String),
TypedConstantKind.Primitive,
_defaultMemberName))))
End If
End Sub
Friend Overrides Function GetUnificationUseSiteDiagnosticRecursive(owner As Symbol, ByRef checkedTypes As HashSet(Of TypeSymbol)) As DiagnosticInfo
Return Nothing
End Function
Friend Overrides Function GetSynthesizedWithEventsOverrides() As IEnumerable(Of PropertySymbol)
Return SpecializedCollections.EmptyEnumerable(Of PropertySymbol)()
End Function
Friend Overrides ReadOnly Property HasAnyDeclaredRequiredMembers As Boolean
Get
Return False
End Get
End Property
Friend Overrides Function GetGuidString(ByRef guidString As String) As Boolean
guidString = Nothing
Return False
End Function
End Class
Private Class SynthesizedComMethod
Inherits MethodSymbol
Public ReadOnly ClonedFrom As MethodSymbol
Private ReadOnly _synthesizedDispId As Integer ' ReservedDispId.None if shouldn't be synthesized
Private ReadOnly _interface As SynthesizedComInterface
Private ReadOnly _parameters As ImmutableArray(Of ParameterSymbol)
Public Sub New(container As SynthesizedComInterface, clone As MethodSymbol, synthesizedDispId As Integer)
_interface = container
_synthesizedDispId = synthesizedDispId
Debug.Assert(clone.DeclaredAccessibility = Accessibility.Public)
ClonedFrom = clone
If clone.ParameterCount = 0 Then
_parameters = ImmutableArray(Of ParameterSymbol).Empty
Else
Dim parameters(clone.ParameterCount - 1) As ParameterSymbol
For i As Integer = 0 To parameters.Length - 1
parameters(i) = New SynthesizedComParameter(Me, clone.Parameters(i))
Next
_parameters = parameters.AsImmutable()
End If
End Sub
Protected Overridable ReadOnly Property NameAndAttributesSource As Symbol
Get
Return ClonedFrom
End Get
End Property
Public Overrides ReadOnly Property Name As String
Get
Return NameAndAttributesSource.Name
End Get
End Property
Friend Overrides ReadOnly Property HasSpecialName As Boolean
Get
Debug.Assert(NameAndAttributesSource Is ClonedFrom)
Return ClonedFrom.HasSpecialName
End Get
End Property
Friend Overrides Function GetAppliedConditionalSymbols() As ImmutableArray(Of String)
Return ImmutableArray(Of String).Empty
End Function
Public Overrides ReadOnly Property Arity As Integer
Get
Return 0
End Get
End Property
Public Overrides ReadOnly Property AssociatedSymbol As Symbol
Get
Return Nothing ' Shouldn't make any difference for metadata emit.
End Get
End Property
Friend Overrides ReadOnly Property CallingConvention As Cci.CallingConvention
Get
Return ClonedFrom.CallingConvention
End Get
End Property
Public Overrides ReadOnly Property ContainingSymbol As Symbol
Get
Return _interface
End Get
End Property
Public Overrides ReadOnly Property ContainingType As NamedTypeSymbol
Get
Return _interface
End Get
End Property
Public Overrides ReadOnly Property DeclaredAccessibility As Accessibility
Get
Return Accessibility.Public
End Get
End Property
Public Overrides ReadOnly Property DeclaringSyntaxReferences As ImmutableArray(Of SyntaxReference)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property ExplicitInterfaceImplementations As ImmutableArray(Of MethodSymbol)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property IsExtensionMethod As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property IsExternalMethod As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property IsMustOverride As Boolean
Get
Return True
End Get
End Property
Public Overrides ReadOnly Property IsNotOverridable As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsOverloads As Boolean
Get
Return False
End Get
End Property
Public Overrides Function GetOverloadResolutionPriority() As Integer
Return 0 ' This symbol is used to produce a metadata artifact, it cannot be accessed by a user
End Function
Public Overrides ReadOnly Property IsOverridable As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsOverrides As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsShared As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsSub As Boolean
Get
Return ClonedFrom.IsSub
End Get
End Property
Public Overrides ReadOnly Property IsAsync As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsIterator As Boolean
Get
Return False
End Get
End Property
Public NotOverridable Overrides ReadOnly Property IsInitOnly As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsVararg As Boolean
Get
Return ClonedFrom.IsVararg
End Get
End Property
Public Overrides ReadOnly Property Locations As ImmutableArray(Of Location)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property MethodKind As MethodKind
Get
Select Case ClonedFrom.MethodKind
Case MethodKind.PropertyGet
Return MethodKind.PropertyGet
Case MethodKind.PropertySet
Return MethodKind.PropertySet
Case Else
Return MethodKind.Ordinary
End Select
End Get
End Property
Friend NotOverridable Overrides ReadOnly Property IsMethodKindBasedOnSyntax As Boolean
Get
Return ClonedFrom.IsMethodKindBasedOnSyntax
End Get
End Property
Public NotOverridable Overrides Function GetDllImportData() As DllImportData
Return Nothing
End Function
Friend NotOverridable Overrides ReadOnly Property ReturnTypeMarshallingInformation As MarshalPseudoCustomAttributeData
Get
Return ClonedFrom.ReturnTypeMarshallingInformation
End Get
End Property
Friend NotOverridable Overrides ReadOnly Property ImplementationAttributes As Reflection.MethodImplAttributes
Get
Return Nothing
End Get
End Property
Friend NotOverridable Overrides ReadOnly Property HasDeclarativeSecurity As Boolean
Get
Return False
End Get
End Property
Friend NotOverridable Overrides ReadOnly Property ObsoleteAttributeData As ObsoleteAttributeData
Get
Return Nothing
End Get
End Property
Friend NotOverridable Overrides Function GetSecurityInformation() As IEnumerable(Of Microsoft.Cci.SecurityAttribute)
Throw ExceptionUtilities.Unreachable
End Function
Public Overrides ReadOnly Property Parameters As ImmutableArray(Of ParameterSymbol)
Get
Return _parameters
End Get
End Property
Public Overrides ReadOnly Property ReturnsByRef As Boolean
Get
Return ClonedFrom.ReturnsByRef
End Get
End Property
Public Overrides ReadOnly Property ReturnType As TypeSymbol
Get
Return ClonedFrom.ReturnType
End Get
End Property
Public Overrides ReadOnly Property ReturnTypeCustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return ClonedFrom.ReturnTypeCustomModifiers
End Get
End Property
Public Overrides ReadOnly Property RefCustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return ClonedFrom.RefCustomModifiers
End Get
End Property
Friend Overrides ReadOnly Property Syntax As SyntaxNode
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property TypeArguments As ImmutableArray(Of TypeSymbol)
Get
Return ImmutableArray(Of TypeSymbol).Empty
End Get
End Property
Public Overrides ReadOnly Property TypeParameters As ImmutableArray(Of TypeParameterSymbol)
Get
Return ImmutableArray(Of TypeParameterSymbol).Empty
End Get
End Property
Public Overrides Function GetAttributes() As ImmutableArray(Of VisualBasicAttributeData)
Dim attributeSource As Symbol = NameAndAttributesSource
Dim toClone As ImmutableArray(Of VisualBasicAttributeData) = attributeSource.GetAttributes()
If attributeSource.Kind = SymbolKind.Method Then
Return toClone
End If
Dim attributes = ArrayBuilder(Of VisualBasicAttributeData).GetInstance()
For Each attrData In toClone
Dim attributeUsage = attrData.AttributeClass.GetAttributeUsageInfo()
Debug.Assert(Not attributeUsage.IsNull)
If (attributeUsage.ValidTargets And AttributeTargets.Method) <> 0 Then
attributes.Add(attrData)
End If
Next
If attributes.Count = toClone.Length Then
attributes.Free()
Return toClone
End If
Return attributes.ToImmutableAndFree()
End Function
Friend Overrides Sub AddSynthesizedAttributes(moduleBuilder As PEModuleBuilder, ByRef attributes As ArrayBuilder(Of SynthesizedAttributeData))
MyBase.AddSynthesizedAttributes(moduleBuilder, attributes)
If _synthesizedDispId = ReservedDispId.None Then
Return
End If
AddSynthesizedAttribute(attributes, _interface.ComClass.DeclaringCompilation.TrySynthesizeAttribute(
WellKnownMember.System_Runtime_InteropServices_DispIdAttribute__ctor,
ImmutableArray.Create(New TypedConstant(_interface.ComClass.GetSpecialType(Microsoft.CodeAnalysis.SpecialType.System_Int32),
TypedConstantKind.Primitive,
_synthesizedDispId))))
End Sub
Public Overrides Function GetReturnTypeAttributes() As ImmutableArray(Of VisualBasicAttributeData)
Dim attributeSource As Symbol = NameAndAttributesSource
If attributeSource.Kind = SymbolKind.Method Then
Return DirectCast(attributeSource, MethodSymbol).GetReturnTypeAttributes()
End If
Return ImmutableArray(Of VisualBasicAttributeData).Empty
End Function
Friend NotOverridable Overrides Function IsMetadataNewSlot(Optional ignoreInterfaceImplementationChanges As Boolean = False) As Boolean
Return True
End Function
Friend Overrides ReadOnly Property GenerateDebugInfoImpl As Boolean
Get
Return False
End Get
End Property
Friend Overrides Function CalculateLocalSyntaxOffset(localPosition As Integer, localTree As SyntaxTree) As Integer
Throw ExceptionUtilities.Unreachable
End Function
Friend NotOverridable Overrides ReadOnly Property HasSetsRequiredMembers As Boolean
Get
Return False
End Get
End Property
End Class
Private Class SynthesizedComEventMethod
Inherits SynthesizedComMethod
Private ReadOnly _event As EventSymbol
Public Sub New(container As SynthesizedComInterface, [event] As EventSymbol, clone As MethodSymbol, synthesizedDispId As Integer)
MyBase.New(container, clone, synthesizedDispId)
_event = [event]
End Sub
Protected Overrides ReadOnly Property NameAndAttributesSource As Symbol
Get
Return _event
End Get
End Property
Friend Overrides ReadOnly Property HasSpecialName As Boolean
Get
Return _event.HasSpecialName
End Get
End Property
End Class
Private NotInheritable Class SynthesizedComParameter
Inherits ParameterSymbol
Private ReadOnly _container As Symbol
Private ReadOnly _clonedFrom As ParameterSymbol
Public Sub New(container As SynthesizedComMethod, clone As ParameterSymbol)
_container = container
_clonedFrom = clone
End Sub
Public Sub New(container As SynthesizedComProperty, clone As ParameterSymbol)
_container = container
_clonedFrom = clone
End Sub
Public Overrides ReadOnly Property Name As String
Get
Return _clonedFrom.Name
End Get
End Property
Public Overrides ReadOnly Property ContainingSymbol As Symbol
Get
Return _container
End Get
End Property
Public Overrides ReadOnly Property CustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return _clonedFrom.CustomModifiers
End Get
End Property
Public Overrides ReadOnly Property RefCustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return _clonedFrom.RefCustomModifiers
End Get
End Property
Public Overrides ReadOnly Property DeclaringSyntaxReferences As ImmutableArray(Of SyntaxReference)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public ReadOnly Property IsComEventParameter As Boolean
Get
Return DirectCast(_container.ContainingSymbol, SynthesizedComInterface).IsEventInterface
End Get
End Property
Friend Overloads Overrides ReadOnly Property ExplicitDefaultConstantValue(inProgress As SymbolsInProgress(Of ParameterSymbol)) As ConstantValue
Get
If IsComEventParameter Then
Return Nothing
End If
Return _clonedFrom.ExplicitDefaultConstantValue(inProgress)
End Get
End Property
Public Overrides ReadOnly Property HasExplicitDefaultValue As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.HasExplicitDefaultValue
End Get
End Property
Public Overrides ReadOnly Property IsByRef As Boolean
Get
Return _clonedFrom.IsByRef
End Get
End Property
Friend Overrides ReadOnly Property IsExplicitByRef As Boolean
Get
Return _clonedFrom.IsExplicitByRef
End Get
End Property
Public Overrides ReadOnly Property IsOptional As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsOptional
End Get
End Property
Friend Overrides ReadOnly Property IsMetadataOut As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsMetadataOut
End Get
End Property
Friend Overrides ReadOnly Property IsMetadataIn As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsMetadataIn
End Get
End Property
Friend Overrides ReadOnly Property HasOptionCompare As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.HasOptionCompare
End Get
End Property
Friend Overrides ReadOnly Property IsIDispatchConstant As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsIDispatchConstant
End Get
End Property
Friend Overrides ReadOnly Property IsIUnknownConstant As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsIUnknownConstant
End Get
End Property
Friend Overrides ReadOnly Property IsCallerLineNumber As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property IsCallerMemberName As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property IsCallerFilePath As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Friend Overrides ReadOnly Property CallerArgumentExpressionParameterIndex As Integer
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property IsParamArray As Boolean
Get
If IsComEventParameter Then
Return False
End If
Return _clonedFrom.IsParamArray
End Get
End Property
Friend Overrides ReadOnly Property MarshallingInformation As MarshalPseudoCustomAttributeData
Get
If IsComEventParameter Then
Return Nothing
End If
Return _clonedFrom.MarshallingInformation
End Get
End Property
Public Overrides ReadOnly Property Locations As ImmutableArray(Of Location)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property Ordinal As Integer
Get
Return _clonedFrom.Ordinal
End Get
End Property
Public Overrides ReadOnly Property Type As TypeSymbol
Get
Return _clonedFrom.Type
End Get
End Property
Public Overrides Function GetAttributes() As ImmutableArray(Of VisualBasicAttributeData)
If IsComEventParameter Then
Return ImmutableArray(Of VisualBasicAttributeData).Empty
End If
Return _clonedFrom.GetAttributes()
End Function
Friend Overrides Sub AddSynthesizedAttributes(moduleBuilder As PEModuleBuilder, ByRef attributes As ArrayBuilder(Of SynthesizedAttributeData))
MyBase.AddSynthesizedAttributes(moduleBuilder, attributes)
If IsComEventParameter Then
Return
End If
Dim toClone As ArrayBuilder(Of SynthesizedAttributeData) = Nothing
_clonedFrom.AddSynthesizedAttributes(moduleBuilder, toClone)
Dim compilation = Me.DeclaringCompilation
Dim paramArrayAttribute As NamedTypeSymbol = compilation.GetWellKnownType(WellKnownType.System_ParamArrayAttribute)
Dim dateTimeConstantAttribute As NamedTypeSymbol = compilation.GetWellKnownType(WellKnownType.System_Runtime_CompilerServices_DateTimeConstantAttribute)
Dim decimalConstantAttribute As NamedTypeSymbol = compilation.GetWellKnownType(WellKnownType.System_Runtime_CompilerServices_DecimalConstantAttribute)
If toClone IsNot Nothing Then
For Each attrData In toClone
If attrData.AttributeClass Is paramArrayAttribute OrElse
attrData.AttributeClass Is dateTimeConstantAttribute OrElse
attrData.AttributeClass Is decimalConstantAttribute Then
AddSynthesizedAttribute(attributes, attrData)
End If
Next
toClone.Free()
End If
End Sub
End Class
Private Class SynthesizedComProperty
Inherits PropertySymbol
Private ReadOnly _interface As SynthesizedComInterface
Private ReadOnly _clonedFrom As PropertySymbol
Private ReadOnly _synthesizedDispId As Integer ' ReservedDispId.None if shouldn't be synthesized
Private ReadOnly _getter As SynthesizedComMethod
Private ReadOnly _setter As SynthesizedComMethod
Private ReadOnly _parameters As ImmutableArray(Of ParameterSymbol)
Public Sub New(
container As SynthesizedComInterface,
clone As PropertySymbol,
getter As SynthesizedComMethod,
setter As SynthesizedComMethod,
synthesizedDispId As Integer
)
_interface = container
Debug.Assert(clone.DeclaredAccessibility = Accessibility.Public)
_clonedFrom = clone
_synthesizedDispId = synthesizedDispId
_getter = getter
_setter = setter
If clone.ParameterCount = 0 Then
_parameters = ImmutableArray(Of ParameterSymbol).Empty
Else
Dim parameters(clone.ParameterCount - 1) As ParameterSymbol
For i As Integer = 0 To parameters.Length - 1
parameters(i) = New SynthesizedComParameter(Me, clone.Parameters(i))
Next
_parameters = parameters.AsImmutable()
End If
End Sub
Public Overrides ReadOnly Property Name As String
Get
Return _clonedFrom.Name
End Get
End Property
Friend Overrides ReadOnly Property HasSpecialName As Boolean
Get
Return _clonedFrom.HasSpecialName
End Get
End Property
Friend Overrides ReadOnly Property CallingConvention As Microsoft.Cci.CallingConvention
Get
Return _clonedFrom.CallingConvention
End Get
End Property
Public Overrides ReadOnly Property ContainingSymbol As Symbol
Get
Return _interface
End Get
End Property
Public Overrides ReadOnly Property ContainingType As NamedTypeSymbol
Get
Return _interface
End Get
End Property
Public Overrides ReadOnly Property DeclaredAccessibility As Accessibility
Get
Return Accessibility.Public
End Get
End Property
Public Overrides ReadOnly Property DeclaringSyntaxReferences As ImmutableArray(Of SyntaxReference)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property ExplicitInterfaceImplementations As ImmutableArray(Of PropertySymbol)
Get
Return ImmutableArray(Of PropertySymbol).Empty
End Get
End Property
Public Overrides ReadOnly Property GetMethod As MethodSymbol
Get
Return _getter
End Get
End Property
Friend Overrides ReadOnly Property AssociatedField As FieldSymbol
Get
Return Nothing
End Get
End Property
Public Overrides ReadOnly Property IsDefault As Boolean
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property IsMustOverride As Boolean
Get
Return True
End Get
End Property
Public Overrides ReadOnly Property IsNotOverridable As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsOverloads As Boolean
Get
Return False
End Get
End Property
Public Overrides Function GetOverloadResolutionPriority() As Integer
Return 0 ' This symbol is used to produce a metadata artifact, it cannot be accessed by a user
End Function
Public Overrides ReadOnly Property IsOverridable As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsOverrides As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsShared As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property Locations As ImmutableArray(Of Location)
Get
Throw ExceptionUtilities.Unreachable
End Get
End Property
Public Overrides ReadOnly Property Parameters As ImmutableArray(Of ParameterSymbol)
Get
Return _parameters
End Get
End Property
Public Overrides ReadOnly Property SetMethod As MethodSymbol
Get
Return _setter
End Get
End Property
Public Overrides ReadOnly Property ReturnsByRef As Boolean
Get
Return _clonedFrom.ReturnsByRef
End Get
End Property
Public Overrides ReadOnly Property Type As TypeSymbol
Get
Return _clonedFrom.Type
End Get
End Property
Friend NotOverridable Overrides ReadOnly Property ObsoleteAttributeData As ObsoleteAttributeData
Get
Return Nothing
End Get
End Property
Public Overrides ReadOnly Property TypeCustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return _clonedFrom.TypeCustomModifiers
End Get
End Property
Public Overrides ReadOnly Property RefCustomModifiers As ImmutableArray(Of CustomModifier)
Get
Return _clonedFrom.RefCustomModifiers
End Get
End Property
Public Overrides Function GetAttributes() As ImmutableArray(Of VisualBasicAttributeData)
Return _clonedFrom.GetAttributes()
End Function
Friend Overrides Sub AddSynthesizedAttributes(moduleBuilder As PEModuleBuilder, ByRef attributes As ArrayBuilder(Of SynthesizedAttributeData))
MyBase.AddSynthesizedAttributes(moduleBuilder, attributes)
If _synthesizedDispId = ReservedDispId.None Then
Return
End If
AddSynthesizedAttribute(attributes, _interface.ComClass.DeclaringCompilation.TrySynthesizeAttribute(
WellKnownMember.System_Runtime_InteropServices_DispIdAttribute__ctor,
ImmutableArray.Create(New TypedConstant(_interface.ComClass.GetSpecialType(Microsoft.CodeAnalysis.SpecialType.System_Int32),
TypedConstantKind.Primitive,
_synthesizedDispId))))
End Sub
Friend Overrides ReadOnly Property IsMyGroupCollectionProperty As Boolean
Get
Return False
End Get
End Property
Public Overrides ReadOnly Property IsRequired As Boolean
Get
Return False
End Get
End Property
End Class
End Class
''' <summary>
''' Perform ComClass specific validation and prepare for metadata generation.
''' </summary>
Private Sub PerformComClassAnalysis()
If _comClassData Is Nothing Then
Return
End If
_comClassData.PerformComClassAnalysis(Me)
End Sub
Friend Overrides Function GetSynthesizedNestedTypes() As IEnumerable(Of Microsoft.Cci.INestedTypeDefinition)
If _comClassData Is Nothing Then
Return Nothing
End If
Dim interfaces As ImmutableArray(Of NamedTypeSymbol) = _comClassData.GetSynthesizedInterfaces()
If interfaces.IsEmpty Then
Return Nothing
End If
#If DEBUG Then
Return interfaces.Select(Function(i) i.GetCciAdapter())
#Else
return interfaces.AsEnumerable()
#End If
End Function
Friend Overrides Function GetSynthesizedImplements() As IEnumerable(Of NamedTypeSymbol)
If _comClassData Is Nothing Then
Return Nothing
End If
Return _comClassData.GetSynthesizedImplements()
End Function
Friend Function GetCorrespondingComClassInterfaceMethod(method As MethodSymbol) As MethodSymbol
GetAttributes()
If _comClassData Is Nothing Then
Return Nothing
End If
_comClassData.PerformComClassAnalysis(Me)
Return _comClassData.GetCorrespondingComClassInterfaceMethod(method)
End Function
End Class
End Namespace
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