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# WidgetBundleBuilder

A custom attribute that constructs a widget bundle’s body.

```
@resultBuilder struct WidgetBundleBuilder
```

## Overview

Use the `@WidgetBundleBuilder` attribute to group multiple widgets listed
in the [`body`](/documentation/SwiftUI/WidgetBundle/body-swift.property) property of a widget bundle.
For example, the following code defines a widget bundle that consists of
two widgets.

```
@main
struct GameWidgets: WidgetBundle {
   @WidgetBundleBuilder
   var body: some Widget {
       GameStatusWidget()
       CharacterDetailWidget()
   }
}
```

## Topics

### Bundling widgets

[`buildBlock()`](/documentation/SwiftUI/WidgetBundleBuilder/buildBlock())

Builds an empty Widget from a block containing no statements, `{ }`.

[`buildBlock(_:)`](/documentation/SwiftUI/WidgetBundleBuilder/buildBlock(_:))

[`buildExpression(_:)`](/documentation/SwiftUI/WidgetBundleBuilder/buildExpression(_:))

Builds an expression within the builder.

[`buildLimitedAvailability(_:)`](/documentation/SwiftUI/WidgetBundleBuilder/buildLimitedAvailability(_:))

Builds an availability check within the builder

[`buildOptional(_:)`](/documentation/SwiftUI/WidgetBundleBuilder/buildOptional(_:))

Produces an optional widget for conditional statements in multi-statement
closures that’s only visible when the condition evaluates to true.


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