---
title: Resolver
framework: appintents
role: symbol
role_heading: Protocol
path: appintents/resolver
---

# Resolver

An interface to convert a value from one type to a different type.

## Declaration

```swift
protocol Resolver : Hashable, Sendable
```

## Topics

### Resolving the type

- [resolve(from:context:)](appintents/resolver/resolve(from:context:).md)
- [Input](appintents/resolver/input.md)
- [Output](appintents/resolver/output.md)

### Managing the resolution process

- [ResolverSpecification](appintents/resolverspecification.md)
- [EmptyResolverSpecification](appintents/emptyresolverspecification.md)
- [StringSearchCriteriaFromStringResolverSpecificification](appintents/stringsearchcriteriafromstringresolverspecificification.md)
- [ResolverSpecificationBuilder](appintents/resolverspecificationbuilder.md)

### Type Aliases

- [Resolver.Context](appintents/resolver/context.md)

## Relationships

### Inherits From

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

### Inherited By

- [RangeCheckingResolver](appintents/rangecheckingresolver.md)

### Conforming Types

- [AttributedStringFromStringResolver](appintents/attributedstringfromstringresolver.md)
- [BoolFromStringResolver](appintents/boolfromstringresolver.md)
- [DoubleFromIntResolver](appintents/doublefromintresolver.md)
- [DoubleFromStringResolver](appintents/doublefromstringresolver.md)
- [DoubleResolver](appintents/doubleresolver.md)
- [IntFromDoubleResolver](appintents/intfromdoubleresolver.md)
- [IntFromStringResolver](appintents/intfromstringresolver.md)
- [IntResolver](appintents/intresolver.md)
- [StringFromDoubleResolver](appintents/stringfromdoubleresolver.md)
- [StringFromIntResolver](appintents/stringfromintresolver.md)
- [StringSearchCriteriaFromStringResolverSpecificification](appintents/stringsearchcriteriafromstringresolverspecificification.md)
- [URLFromStringResolver](appintents/urlfromstringresolver.md)