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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions {
public struct DictionaryKeySubscript<
Wrapped : PredicateExpression,
Key : PredicateExpression,
Value
> : PredicateExpression
where
Wrapped.Output == Dictionary<Key.Output, Value>
{
public typealias Output = Optional<Value>
public let wrapped: Wrapped
public let key: Key
public init(wrapped: Wrapped, key: Key) {
self.wrapped = wrapped
self.key = key
}
public func evaluate(_ bindings: PredicateBindings) throws -> Output {
try wrapped.evaluate(bindings)[try key.evaluate(bindings)]
}
}
public static func build_subscript<Wrapped, Key, Value>(_ wrapped: Wrapped, _ key: Key) -> DictionaryKeySubscript<Wrapped, Key, Value> {
DictionaryKeySubscript(wrapped: wrapped, key: key)
}
}
@available(FoundationPredicate 0.3, *)
extension PredicateExpressions.DictionaryKeySubscript : CustomStringConvertible {
public var description: String {
"DictionaryKeySubscript(wrapped: \(wrapped), key: \(key))"
}
}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeySubscript : Sendable where Wrapped : Sendable, Key : Sendable {}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeySubscript : Codable where Wrapped : Codable, Key : Codable {
public func encode(to encoder: Encoder) throws {
var container = encoder.unkeyedContainer()
try container.encode(wrapped)
try container.encode(key)
}
public init(from decoder: Decoder) throws {
var container = try decoder.unkeyedContainer()
self.wrapped = try container.decode(Wrapped.self)
self.key = try container.decode(Key.self)
}
}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeySubscript : StandardPredicateExpression where Wrapped : StandardPredicateExpression, Key : StandardPredicateExpression {}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions {
public struct DictionaryKeyDefaultValueSubscript<
Wrapped : PredicateExpression,
Key : PredicateExpression,
Default : PredicateExpression
> : PredicateExpression
where
Wrapped.Output == Dictionary<Key.Output, Default.Output>
{
public typealias Output = Default.Output
public let wrapped: Wrapped
public let key: Key
public let `default`: Default
public init(wrapped: Wrapped, key: Key, `default`: Default) {
self.wrapped = wrapped
self.key = key
self.`default` = `default`
}
public func evaluate(_ bindings: PredicateBindings) throws -> Output {
guard let value = try wrapped.evaluate(bindings)[try key.evaluate(bindings)] else {
return try `default`.evaluate(bindings)
}
return value
}
}
public static func build_subscript<Wrapped, Key, Default>(_ wrapped: Wrapped, _ key: Key, default: Default) -> DictionaryKeyDefaultValueSubscript<Wrapped, Key, Default> {
DictionaryKeyDefaultValueSubscript(wrapped: wrapped, key: key, default: `default`)
}
}
@available(FoundationPredicate 0.3, *)
extension PredicateExpressions.DictionaryKeyDefaultValueSubscript : CustomStringConvertible {
public var description: String {
"DictionaryKeyDefaultValueSubscript(wrapped: \(wrapped), key: \(key), defaultValue: \(`default`))"
}
}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeyDefaultValueSubscript : Sendable where Wrapped : Sendable, Key : Sendable, Default : Sendable {}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeyDefaultValueSubscript : Codable where Wrapped : Codable, Key : Codable, Default : Codable {
public func encode(to encoder: Encoder) throws {
var container = encoder.unkeyedContainer()
try container.encode(wrapped)
try container.encode(key)
try container.encode(`default`)
}
public init(from decoder: Decoder) throws {
var container = try decoder.unkeyedContainer()
self.wrapped = try container.decode(Wrapped.self)
self.key = try container.decode(Key.self)
self.`default` = try container.decode(Default.self)
}
}
@available(FoundationPredicate 0.1, *)
extension PredicateExpressions.DictionaryKeyDefaultValueSubscript : StandardPredicateExpression where Wrapped : StandardPredicateExpression, Key : StandardPredicateExpression, Default : StandardPredicateExpression {}
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