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# OnDiskConstraintBuilder

A custom parameter attribute that constructs on-disk constraints from closures.

```
@resultBuilder struct OnDiskConstraintBuilder
```

## Topics

### Type Methods

[`static func buildBlock([any OnDiskConstraint]...) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildBlock(_:))

Builds flat array from a variadic set of arrays

[`static func buildEither(first: [any OnDiskConstraint]) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildEither(first:))

Produces content for a conditional statement in a multi-statement closure when the condition is true

[`static func buildEither(second: [any OnDiskConstraint]) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildEither(second:))

Produces content for a conditional statement in a multi-statement closure when the condition is false

[`static func buildExpression(any OnDiskConstraint) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildExpression(_:)-1qla)

Builds an expression within the builder

[`static func buildExpression([any OnDiskConstraint]) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildExpression(_:)-3uyy8)

Builds an expression within the builder

[`static func buildOptional([any OnDiskConstraint]?) -> [any OnDiskConstraint]`](/documentation/LightweightCodeRequirements/OnDiskConstraintBuilder/buildOptional(_:))

Produces content for a conditional statement in a multi-statement closure when the condition is true and has no else option

---

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