ITypeParameterSymbol Interface

Definition

Namespace:

Microsoft.CodeAnalysis

Assembly:

Microsoft.CodeAnalysis.dll

Package:

Microsoft.CodeAnalysis.Common v4.9.2

Source:

ITypeParameterSymbol.cs

Represents a type parameter in a generic type or generic method.

public interface class ITypeParameterSymbol : IEquatable<Microsoft::CodeAnalysis::ISymbol ^>, Microsoft::CodeAnalysis::ITypeSymbol

public interface ITypeParameterSymbol : IEquatable<Microsoft.CodeAnalysis.ISymbol>, Microsoft.CodeAnalysis.ITypeSymbol

type ITypeParameterSymbol = interface
    interface ITypeSymbol
    interface INamespaceOrTypeSymbol
    interface ISymbol
    interface IEquatable<ISymbol>

Public Interface ITypeParameterSymbol
Implements IEquatable(Of ISymbol), ITypeSymbol

Implements

INamespaceOrTypeSymbol ISymbol ITypeSymbol IEquatable<ISymbol>

Remarks

This interface is reserved for implementation by its associated APIs. We reserve the right to change it in the future.

Properties

AllInterfaces	The list of all interfaces of which this type is a declared subtype, excluding this type itself. This includes all declared base interfaces, all declared base interfaces of base types, and all declared base interfaces of those results (recursively). This also is the effective interface set of a type parameter. Each result appears exactly once in the list. This list is topologically sorted by the inheritance relationship: if interface type A extends interface type B, then A precedes B in the list. This is not quite the same as "all interfaces of which this type is a proper subtype" because it does not take into account variance: AllInterfaces for IEnumerable<string> will not include IEnumerable<object>. (Inherited from ITypeSymbol)
BaseType	The declared base type of this type, or null. The object type, interface types, and pointer types do not have a base type. The base type of a type parameter is its effective base class. (Inherited from ITypeSymbol)
CanBeReferencedByName	Returns true if this symbol can be referenced by its name in code. (Inherited from ISymbol)
ConstraintNullableAnnotations	The top-level nullabilities that were directly specified as constraints on the constraint types.
ConstraintTypes	The types that were directly specified as constraints on the type parameter.
ContainingAssembly	Gets the IAssemblySymbol for the containing assembly. Returns null if the symbol is shared across multiple assemblies. (Inherited from ISymbol)
ContainingModule	Gets the IModuleSymbol for the containing module. Returns null if the symbol is shared across multiple modules. (Inherited from ISymbol)
ContainingNamespace	Gets the INamespaceSymbol for the nearest enclosing namespace. Returns null if the symbol isn't contained in a namespace. (Inherited from ISymbol)
ContainingSymbol	Gets the ISymbol for the immediately containing symbol. (Inherited from ISymbol)
ContainingType	Gets the INamedTypeSymbol for the containing type. Returns null if the symbol is not contained within a type. (Inherited from ISymbol)
DeclaredAccessibility	Gets a Accessibility indicating the declared accessibility for the symbol. Returns NotApplicable if no accessibility is declared. (Inherited from ISymbol)
DeclaringMethod	The method that declares the type parameter, or null.
DeclaringSyntaxReferences	Get the syntax node(s) where this symbol was declared in source. Some symbols (for example, partial classes) may be defined in more than one location. This property should return one or more syntax nodes only if the symbol was declared in source code and also was not implicitly declared (see the IsImplicitlyDeclared property). Note that for namespace symbol, the declaring syntax might be declaring a nested namespace. For example, the declaring syntax node for N1 in "namespace N1.N2 {...}" is the entire NamespaceDeclarationSyntax for N1.N2. For the global namespace, the declaring syntax will be the CompilationUnitSyntax. (Inherited from ISymbol)
DeclaringType	The type that declares the type parameter, or null.
HasConstructorConstraint	True if the parameterless constructor constraint (new()) was specified for the type parameter.
HasNotNullConstraint	True if the notnull constraint (notnull) was specified for the type parameter.
HasReferenceTypeConstraint	True if the reference type constraint (class) was specified for the type parameter.
HasUnmanagedTypeConstraint	True if the value type constraint (unmanaged) was specified for the type parameter.
HasUnsupportedMetadata	Indicates that this symbol uses metadata that cannot be supported by the language. Examples include: Pointer types in VB ByRef return type Required custom modifiers This is distinguished from, for example, references to metadata symbols defined in assemblies that weren't referenced. Symbols where this returns true can never be used successfully, and thus should never appear in any IDE feature. This is set for metadata symbols, as follows: Type - if a type is unsupported (for example, a pointer type) Method - parameter or return type is unsupported Field - type is unsupported Event - type is unsupported Property - type is unsupported Parameter - type is unsupported (Inherited from ISymbol)
HasValueTypeConstraint	True if the value type constraint (struct) was specified for the type parameter.
Interfaces	Gets the set of interfaces that this type directly implements. This set does not include interfaces that are base interfaces of directly implemented interfaces. This does include the interfaces declared as constraints on type parameters. (Inherited from ITypeSymbol)
IsAbstract	Gets a value indicating whether the symbol is abstract. (Inherited from ISymbol)
IsAnonymousType	Is this a symbol for an anonymous type (including anonymous VB delegate). (Inherited from ITypeSymbol)
IsDefinition	Gets a value indicating whether the symbol is the original definition. Returns false if the symbol is derived from another symbol, by type substitution for instance. (Inherited from ISymbol)
IsExtern	Gets a value indicating whether the symbol is defined externally. (Inherited from ISymbol)
IsImplicitlyDeclared	Returns true if this symbol was automatically created by the compiler, and does not have an explicit corresponding source code declaration. (Inherited from ISymbol)
IsNamespace	Returns true if this symbol is a namespace. If it is not a namespace, it must be a type. (Inherited from INamespaceOrTypeSymbol)
IsNativeIntegerType	True if the type represents a native integer. In C#, the types represented by language keywords 'nint' and 'nuint'. (Inherited from ITypeSymbol)
IsOverride	Gets a value indicating whether the symbol is an override of a base class symbol. (Inherited from ISymbol)
IsReadOnly	True if the type is readonly. (Inherited from ITypeSymbol)
IsRecord	For source symbols, true if the type is a record. For metadata symbols, true if the type is a record and a reference type. (Inherited from ITypeSymbol)
IsReferenceType	True if this type is known to be a reference type. It is never the case that IsReferenceType and IsValueType both return true. However, for an unconstrained type parameter, IsReferenceType and IsValueType will both return false. (Inherited from ITypeSymbol)
IsRefLikeType	True if the type is ref-like, meaning it follows rules similar to CLR by-ref variables. False if the type is not ref-like or if the language has no concept of ref-like types. (Inherited from ITypeSymbol)
IsSealed	Gets a value indicating whether the symbol is sealed. (Inherited from ISymbol)
IsStatic	Gets a value indicating whether the symbol is static. (Inherited from ISymbol)
IsTupleType	Is this a symbol for a tuple . (Inherited from ITypeSymbol)
IsType	Returns true if this symbols is a type. If it is not a type, it must be a namespace. (Inherited from INamespaceOrTypeSymbol)
IsUnmanagedType	True if the type is unmanaged according to language rules. False if managed or if the language has no concept of unmanaged types. (Inherited from ITypeSymbol)
IsValueType	True if this type is known to be a value type. It is never the case that IsReferenceType and IsValueType both return true. However, for an unconstrained type parameter, IsReferenceType and IsValueType will both return false. (Inherited from ITypeSymbol)
IsVirtual	Gets a value indicating whether the symbol is virtual. (Inherited from ISymbol)
Kind	Gets the SymbolKind indicating what kind of symbol it is. (Inherited from ISymbol)
Language	Gets the source language ("C#" or "Visual Basic"). (Inherited from ISymbol)
Locations	Gets the locations where the symbol was originally defined, either in source or metadata. Some symbols (for example, partial classes) may be defined in more than one location. (Inherited from ISymbol)
MetadataName	Gets the name of a symbol as it appears in metadata. Most of the time, this is the same as the Name property, with the following exceptions: The metadata name of generic types includes the "`1", "`2" etc. suffix that indicates the number of type parameters (it does not include, however, names of containing types or namespaces). The metadata name of explicit interface names have spaces removed, compared to the name property. The length of names is limited to not exceed metadata restrictions. (Inherited from ISymbol)
MetadataToken	Gets the metadata token associated with this symbol, or 0 if the symbol is not loaded from metadata. (Inherited from ISymbol)
Name	Gets the symbol name. Returns the empty string if unnamed. (Inherited from ISymbol)
NullableAnnotation	Nullable annotation associated with the type, or None if there are none. (Inherited from ITypeSymbol)
Ordinal	The ordinal position of the type parameter in the parameter list which declares it. The first type parameter has ordinal zero.
OriginalDefinition	Get the original definition of this type symbol. If this symbol is derived from another symbol by (say) type substitution, this gets the original symbol, as it was defined in source or metadata.
ReducedFrom	If this is a type parameter of a reduced extension method, gets the type parameter definition that this type parameter was reduced from. Otherwise, returns Nothing.
ReferenceTypeConstraintNullableAnnotation	If HasReferenceTypeConstraint is true, returns the top-level nullability of the class constraint that was specified for the type parameter. If there was no class constraint, this returns None.
SpecialType	An enumerated value that identifies certain 'special' types such as Object. Returns None if the type is not special. (Inherited from ITypeSymbol)
TypeKind	An enumerated value that identifies whether this type is an array, pointer, enum, and so on. (Inherited from ITypeSymbol)
TypeParameterKind	The type parameter kind of this type parameter.
Variance	The variance annotation, if any, of the type parameter declaration. Type parameters may be declared as covariant (out), contravariant (in), or neither.

Methods

Accept(SymbolVisitor)	(Inherited from ISymbol)
Accept<TArgument,TResult>(SymbolVisitor<TArgument,TResult>, TArgument)	(Inherited from ISymbol)
Accept<TResult>(SymbolVisitor<TResult>)	(Inherited from ISymbol)
Equals(ISymbol, SymbolEqualityComparer)	Determines if this symbol is equal to another, according to the rules of the provided SymbolEqualityComparer (Inherited from ISymbol)
FindImplementationForInterfaceMember(ISymbol)	Returns the corresponding symbol in this type or a base type that implements interfaceMember (either implicitly or explicitly), or null if no such symbol exists (which might be either because this type doesn't implement the container of interfaceMember, or this type doesn't supply a member that successfully implements interfaceMember). (Inherited from ITypeSymbol)
GetAttributes()	Gets the attributes for the symbol. Returns an empty IEnumerable<T> if there are no attributes. (Inherited from ISymbol)
GetDocumentationCommentId()	Returns the Documentation Comment ID for the symbol, or null if the symbol doesn't support documentation comments. (Inherited from ISymbol)
GetDocumentationCommentXml(CultureInfo, Boolean, CancellationToken)	Gets the XML (as text) for the comment associated with the symbol. (Inherited from ISymbol)
GetMembers()	Get all the members of this symbol. (Inherited from INamespaceOrTypeSymbol)
GetMembers(String)	Get all the members of this symbol that have a particular name. (Inherited from INamespaceOrTypeSymbol)
GetTypeMembers()	Get all the members of this symbol that are types. (Inherited from INamespaceOrTypeSymbol)
GetTypeMembers(String, Int32)	Get all the members of this symbol that are types that have a particular name and arity (Inherited from INamespaceOrTypeSymbol)
GetTypeMembers(String)	Get all the members of this symbol that are types that have a particular name, of any arity. (Inherited from INamespaceOrTypeSymbol)
ToDisplayParts(NullableFlowState, SymbolDisplayFormat)	Converts a symbol to an array of string parts, each of which has a kind. Useful for colorizing the display string. (Inherited from ITypeSymbol)
ToDisplayParts(SymbolDisplayFormat)	Convert a symbol to an array of string parts, each of which has a kind. Useful for colorizing the display string. (Inherited from ISymbol)
ToDisplayString(NullableFlowState, SymbolDisplayFormat)	Converts an ITypeSymbol and a nullable flow state to a string representation. (Inherited from ITypeSymbol)
ToDisplayString(SymbolDisplayFormat)	Converts the symbol to a string representation. (Inherited from ISymbol)
ToMinimalDisplayParts(SemanticModel, Int32, SymbolDisplayFormat)	Convert a symbol to an array of string parts, each of which has a kind. May be tailored to a specific location in the source code. Useful for colorizing the display string. (Inherited from ISymbol)
ToMinimalDisplayParts(SemanticModel, NullableFlowState, Int32, SymbolDisplayFormat)	Convert a symbol to an array of string parts, each of which has a kind. May be tailored to a specific location in the source code. Useful for colorizing the display string. (Inherited from ITypeSymbol)
ToMinimalDisplayString(SemanticModel, Int32, SymbolDisplayFormat)	Convert a symbol to a string that can be displayed to the user. May be tailored to a specific location in the source code. (Inherited from ISymbol)
ToMinimalDisplayString(SemanticModel, NullableFlowState, Int32, SymbolDisplayFormat)	Converts a symbol to a string that can be displayed to the user. May be tailored to a specific location in the source code. (Inherited from ITypeSymbol)
WithNullableAnnotation(NullableAnnotation)	Returns the same type as this type but with the given nullable annotation. (Inherited from ITypeSymbol)

Extension Methods

IsMustOverride(ISymbol)
IsNotOverridable(ISymbol)
IsOverridable(ISymbol)
IsOverrides(ISymbol)
IsShared(ISymbol)	Determines if symbol is Shared.