IntroduceUnion(IAdviser<INamespaceOrNamedType>, string, Action<IUnionBuilder>, OverrideStrategy)
Introduces a new union, written with the union keyword, into the current namespace (as a top-level type) or type (as a nested type).
Use the With<TNewDeclaration>(TNewDeclaration) or WithNamespace(IAdviser<ICompilation>, string) method to introduce the union to a different type or namespace
than the current one.
Declaration
public static IIntroductionAdviceResult<INamedType> IntroduceUnion(this IAdviser<INamespaceOrNamedType> adviser, string name, Action<IUnionBuilder> buildUnion, OverrideStrategy whenExists = OverrideStrategy.Default)Parameters
| Type | Name | Description |
|---|---|---|
| IAdviser<INamespaceOrNamedType> | adviser | An adviser for a named type or namespace. |
| string | name | The union name. |
| Action<IUnionBuilder> | buildUnion | A callback that configures the introduced union. It must add at least one case, because the language requires a union to have
one, which is why this parameter is required and precedes |
| OverrideStrategy | whenExists | Determines the implementation strategy when a type of the same name is already declared in the target type or namespace. The default strategy is to fail with a compile-time error. |
Returns
| Type | Description |
|---|---|
| IIntroductionAdviceResult<INamedType> | An IIntroductionAdviceResult<T> that exposes the outcome of the operation and the introduced INamedType. |