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glbrnttglbrntt
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Merge pull request #1 from apple/cb-remove-generics
Remove unnecessary genericism and generic constraints.
2 parents 246d886 + b2ea94c commit 03ade06

16 files changed

+131
-133
lines changed

‎Sources/CodableStructuredHeaders/Decoder/BareInnerListDecoder.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,14 +14,14 @@
1414
import Foundation
1515
import StructuredHeaders
1616

17-
struct BareInnerListDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
18-
private var list: BareInnerList<BaseData.SubSequence>
17+
struct BareInnerListDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
18+
private var list: BareInnerList
1919

2020
private var currentOffset: Int
2121

2222
private var decoder: _StructuredFieldDecoder<BaseData>
2323

24-
init(_ list: BareInnerList<BaseData.SubSequence>, decoder: _StructuredFieldDecoder<BaseData>) {
24+
init(_ list: BareInnerList, decoder: _StructuredFieldDecoder<BaseData>) {
2525
self.list = list
2626
self.currentOffset = 0
2727
self.decoder = decoder

‎Sources/CodableStructuredHeaders/Decoder/BareItemDecoder.swift

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -14,12 +14,12 @@
1414
import Foundation
1515
import StructuredHeaders
1616

17-
struct BareItemDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence == BaseData, BaseData: Hashable {
18-
private var item: BareItem<BaseData>
17+
struct BareItemDecoder {
18+
private var item: BareItem
1919

2020
private var _codingPath: [_StructuredHeaderCodingKey]
2121

22-
init(_ item: BareItem<BaseData>, codingPath: [_StructuredHeaderCodingKey]) {
22+
init(_ item: BareItem, codingPath: [_StructuredHeaderCodingKey]) {
2323
self.item = item
2424
self._codingPath = codingPath
2525
}
@@ -102,7 +102,7 @@ extension BareItemDecoder: SingleValueDecodingContainer {
102102
throw StructuredHeaderError.invalidTypeForItem
103103
}
104104

105-
guard let decoded = Data(base64Encoded: Data(data)) else {
105+
guard let decoded = Data(base64Encoded: data) else {
106106
throw StructuredHeaderError.invalidByteSequence
107107
}
108108

‎Sources/CodableStructuredHeaders/Decoder/DictionaryKeyedContainer.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,12 +14,12 @@
1414
import Foundation
1515
import StructuredHeaders
1616

17-
struct DictionaryKeyedContainer<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
18-
private var dictionary: OrderedMap<String, ItemOrInnerList<BaseData.SubSequence>>
17+
struct DictionaryKeyedContainer<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
18+
private var dictionary: OrderedMap<String, ItemOrInnerList>
1919

2020
private var decoder: _StructuredFieldDecoder<BaseData>
2121

22-
init(_ dictionary: OrderedMap<String, ItemOrInnerList<BaseData.SubSequence>>, decoder: _StructuredFieldDecoder<BaseData>) {
22+
init(_ dictionary: OrderedMap<String, ItemOrInnerList>, decoder: _StructuredFieldDecoder<BaseData>) {
2323
self.dictionary = dictionary
2424
self.decoder = decoder
2525
}

‎Sources/CodableStructuredHeaders/Decoder/KeyedInnerListDecoder.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -19,12 +19,12 @@ private let keyedInnerListDecoderSupportedKeys = ["items", "parameters"]
1919
/// Used when someone has requested a keyed decoder for a property of inner list type.
2020
///
2121
/// There are only two valid keys for this: "items" and "parameters".
22-
struct KeyedInnerListDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
23-
private var innerList: InnerList<BaseData.SubSequence>
22+
struct KeyedInnerListDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
23+
private var innerList: InnerList
2424

2525
private var decoder: _StructuredFieldDecoder<BaseData>
2626

27-
init(_ innerList: InnerList<BaseData.SubSequence>, decoder: _StructuredFieldDecoder<BaseData>) {
27+
init(_ innerList: InnerList, decoder: _StructuredFieldDecoder<BaseData>) {
2828
self.innerList = innerList
2929
self.decoder = decoder
3030
}

‎Sources/CodableStructuredHeaders/Decoder/KeyedItemDecoder.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -19,12 +19,12 @@ private let keyedItemDecoderSupportedKeys = ["item", "parameters"]
1919
/// Used when someone has requested a keyed decoder for a property of item type.
2020
///
2121
/// There are only two valid keys for this: "item" and "parameters".
22-
struct KeyedItemDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
23-
private var item: Item<BaseData.SubSequence>
22+
struct KeyedItemDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
23+
private var item: Item
2424

2525
private var decoder: _StructuredFieldDecoder<BaseData>
2626

27-
init(_ item: Item<BaseData.SubSequence>, decoder: _StructuredFieldDecoder<BaseData>) {
27+
init(_ item: Item, decoder: _StructuredFieldDecoder<BaseData>) {
2828
self.item = item
2929
self.decoder = decoder
3030
}

‎Sources/CodableStructuredHeaders/Decoder/KeyedTopLevelListDecoder.swift

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -19,12 +19,12 @@ private let keyedTopLevelListDecoderSupportedKeys = ["items"]
1919
/// Used when someone has requested a keyed decoder for a property of list type.
2020
///
2121
/// There is only one valid key for this: "items".
22-
struct KeyedTopLevelListDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
23-
private var list: [ItemOrInnerList<BaseData.SubSequence>]
22+
struct KeyedTopLevelListDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
23+
private var list: [ItemOrInnerList]
2424

2525
private var decoder: _StructuredFieldDecoder<BaseData>
26-
27-
init(_ list: [ItemOrInnerList<BaseData.SubSequence>], decoder: _StructuredFieldDecoder<BaseData>) {
26+
27+
init(_ list: [ItemOrInnerList], decoder: _StructuredFieldDecoder<BaseData>) {
2828
self.list = list
2929
self.decoder = decoder
3030
}

‎Sources/CodableStructuredHeaders/Decoder/ParametersDecoder.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,12 +14,12 @@
1414
import Foundation
1515
import StructuredHeaders
1616

17-
struct ParametersDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
18-
private var parameters: OrderedMap<String, BareItem<BaseData.SubSequence>>
17+
struct ParametersDecoder<Key: CodingKey, BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
18+
private var parameters: OrderedMap<String, BareItem>
1919

2020
private var decoder: _StructuredFieldDecoder<BaseData>
2121

22-
init(_ parameters: OrderedMap<String, BareItem<BaseData.SubSequence>>, decoder: _StructuredFieldDecoder<BaseData>) {
22+
init(_ parameters: OrderedMap<String, BareItem>, decoder: _StructuredFieldDecoder<BaseData>) {
2323
self.parameters = parameters
2424
self.decoder = decoder
2525
}

‎Sources/CodableStructuredHeaders/Decoder/StructuredFieldDecoder.swift

Lines changed: 12 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -46,7 +46,7 @@ extension StructuredFieldDecoder {
4646
/// - data: The bytes of the structured header field.
4747
/// - throws: If the header field could not be parsed, or could not be decoded.
4848
/// - returns: An object of type `StructuredField`.
49-
public func decode<StructuredField: StructuredHeaderField, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
49+
public func decode<StructuredField: StructuredHeaderField, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8 {
5050
switch StructuredField.structuredFieldType {
5151
case .item:
5252
return try self.decodeItemField(from: data)
@@ -64,7 +64,7 @@ extension StructuredFieldDecoder {
6464
/// - data: The bytes of the structured header field.
6565
/// - throws: If the header field could not be parsed, or could not be decoded.
6666
/// - returns: An object of type `StructuredField`.
67-
private func decodeDictionaryField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
67+
private func decodeDictionaryField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8 {
6868
let parser = StructuredFieldParser(data)
6969
let decoder = _StructuredFieldDecoder(parser, keyDecodingStrategy: self.keyDecodingStrategy)
7070
try decoder.parseDictionaryField()
@@ -78,7 +78,7 @@ extension StructuredFieldDecoder {
7878
/// - data: The bytes of the structured header field.
7979
/// - throws: If the header field could not be parsed, or could not be decoded.
8080
/// - returns: An object of type `StructuredField`.
81-
private func decodeListField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
81+
private func decodeListField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8 {
8282
let parser = StructuredFieldParser(data)
8383
let decoder = _StructuredFieldDecoder(parser, keyDecodingStrategy: self.keyDecodingStrategy)
8484
try decoder.parseListField()
@@ -92,7 +92,7 @@ extension StructuredFieldDecoder {
9292
/// - data: The bytes of the structured header field.
9393
/// - throws: If the header field could not be parsed, or could not be decoded.
9494
/// - returns: An object of type `StructuredField`.
95-
private func decodeItemField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
95+
private func decodeItemField<StructuredField: Decodable, BaseData: RandomAccessCollection>(_ type: StructuredField.Type = StructuredField.self, from data: BaseData) throws -> StructuredField where BaseData.Element == UInt8 {
9696
let parser = StructuredFieldParser(data)
9797
let decoder = _StructuredFieldDecoder(parser, keyDecodingStrategy: self.keyDecodingStrategy)
9898
try decoder.parseItemField()
@@ -111,7 +111,7 @@ extension StructuredFieldDecoder {
111111
}
112112
}
113113

114-
class _StructuredFieldDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
114+
class _StructuredFieldDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
115115
private var parser: StructuredFieldParser<BaseData>
116116

117117
// For now we use a stack here because the CoW operations on Array would suck. Ideally I'd just have us decode
@@ -220,13 +220,13 @@ extension _StructuredFieldDecoder: Decoder {
220220
extension _StructuredFieldDecoder {
221221
/// The basic elements that make up a Structured Header
222222
fileprivate enum Element {
223-
case dictionary(OrderedMap<String, ItemOrInnerList<BaseData.SubSequence>>)
224-
case list([ItemOrInnerList<BaseData.SubSequence>])
225-
case item(Item<BaseData.SubSequence>)
226-
case innerList(InnerList<BaseData.SubSequence>)
227-
case bareItem(BareItem<BaseData.SubSequence>)
228-
case bareInnerList(BareInnerList<BaseData.SubSequence>)
229-
case parameters(OrderedMap<String, BareItem<BaseData.SubSequence>>)
223+
case dictionary(OrderedMap<String, ItemOrInnerList>)
224+
case list([ItemOrInnerList])
225+
case item(Item)
226+
case innerList(InnerList)
227+
case bareItem(BareItem)
228+
case bareInnerList(BareInnerList)
229+
case parameters(OrderedMap<String, BareItem>)
230230

231231
func innerElement(for key: _StructuredHeaderCodingKey) throws -> Element {
232232
switch self {

‎Sources/CodableStructuredHeaders/Decoder/TopLevelListDecoder.swift

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,14 +14,14 @@
1414
import Foundation
1515
import StructuredHeaders
1616

17-
struct TopLevelListDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8, BaseData.SubSequence: Hashable {
18-
private var list: [ItemOrInnerList<BaseData.SubSequence>]
17+
struct TopLevelListDecoder<BaseData: RandomAccessCollection> where BaseData.Element == UInt8 {
18+
private var list: [ItemOrInnerList]
1919

2020
private var currentOffset: Int
2121

2222
private var decoder: _StructuredFieldDecoder<BaseData>
2323

24-
init(_ list: [ItemOrInnerList<BaseData.SubSequence>], decoder: _StructuredFieldDecoder<BaseData>) {
24+
init(_ list: [ItemOrInnerList], decoder: _StructuredFieldDecoder<BaseData>) {
2525
self.list = list
2626
self.currentOffset = 0
2727
self.decoder = decoder

‎Sources/CodableStructuredHeaders/Encoder/StructuredFieldEncoder.swift

Lines changed: 15 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -276,7 +276,7 @@ extension _StructuredFieldEncoder: SingleValueEncodingContainer {
276276
}
277277

278278
func encode(_ data: Data) throws {
279-
let encoded = data.base64EncodedData()
279+
let encoded = data.base64EncodedString()
280280
try self.currentStackEntry.storage.insertBareItem(.undecodedByteSequence(encoded))
281281
}
282282

@@ -434,7 +434,7 @@ extension _StructuredFieldEncoder {
434434
}
435435

436436
func append(_ value: Data) throws {
437-
try self.currentStackEntry.storage.appendBareItem(.undecodedByteSequence(value.base64EncodedData()))
437+
try self.currentStackEntry.storage.appendBareItem(.undecodedByteSequence(value.base64EncodedString()))
438438
}
439439

440440
func append(_ value: Decimal) throws {
@@ -601,7 +601,7 @@ extension _StructuredFieldEncoder {
601601

602602
func encode(_ value: Data, forKey key: String) throws {
603603
let key = self.sanitizeKey(key)
604-
try self.currentStackEntry.storage.insertBareItem(.undecodedByteSequence(value.base64EncodedData()), atKey: key)
604+
try self.currentStackEntry.storage.insertBareItem(.undecodedByteSequence(value.base64EncodedString()), atKey: key)
605605
}
606606

607607
func encode(_ value: Decimal, forKey key: String) throws {
@@ -758,24 +758,22 @@ extension _StructuredFieldEncoder {
758758
/// Note that we never have a bare item here. This is deliberate: bare items
759759
/// are not a container for anything else, and so can never appear.
760760
internal enum NodeType {
761-
typealias DataType = Data
762-
763761
case dictionaryHeader
764762
case listHeader
765763
case itemHeader
766-
case dictionary(OrderedMap<String, ItemOrInnerList<DataType>>)
767-
case list([ItemOrInnerList<DataType>])
768-
case innerList(InnerList<DataType>)
764+
case dictionary(OrderedMap<String, ItemOrInnerList>)
765+
case list([ItemOrInnerList])
766+
case innerList(InnerList)
769767
case item(PartialItem)
770-
case bareInnerList(BareInnerList<DataType>)
771-
case parameters(OrderedMap<String, BareItem<DataType>>)
772-
case itemOrInnerList(OrderedMap<String, BareItem<DataType>>)
768+
case bareInnerList(BareInnerList)
769+
case parameters(OrderedMap<String, BareItem>)
770+
case itemOrInnerList(OrderedMap<String, BareItem>)
773771

774772
/// A helper struct used to tolerate the fact that we need partial items,
775773
/// but our `Item` struct doesn't like that much.
776774
struct PartialItem {
777-
var bareItem: BareItem<DataType>?
778-
var parameters: OrderedMap<String, BareItem<DataType>>
775+
var bareItem: BareItem?
776+
var parameters: OrderedMap<String, BareItem>
779777
}
780778

781779
/// This is called when a complete object has been built.
@@ -848,7 +846,7 @@ extension _StructuredFieldEncoder {
848846
///
849847
/// If the key is missing we will require the type to be `item`, in which case
850848
/// this will be for the "item" key.
851-
mutating func insertBareItem(_ bareItem: BareItem<DataType>, atKey key: String? = nil) throws {
849+
mutating func insertBareItem(_ bareItem: BareItem, atKey key: String? = nil) throws {
852850
switch self {
853851
case .itemHeader:
854852
guard key == nil || key == "item" else {
@@ -875,7 +873,7 @@ extension _StructuredFieldEncoder {
875873

876874
case .dictionaryHeader:
877875
// Ok cool, this is a dictionary.
878-
var map = OrderedMap<String, ItemOrInnerList<DataType>>()
876+
var map = OrderedMap<String, ItemOrInnerList>()
879877

880878
// Bare item here means item, no parameters.
881879
map[key!] = .item(.init(bareItem: bareItem, parameters: [:]))
@@ -897,7 +895,7 @@ extension _StructuredFieldEncoder {
897895

898896
/// Appends a bare item to the given container. This must be a list-type
899897
/// container that stores either bare items, or items.
900-
mutating func appendBareItem(_ bareItem: BareItem<DataType>) throws {
898+
mutating func appendBareItem(_ bareItem: BareItem) throws {
901899
switch self {
902900
case .listHeader:
903901
self = .list([.item(Item(bareItem: bareItem, parameters: [:]))])
@@ -926,7 +924,7 @@ extension _StructuredFieldEncoder {
926924
}
927925
}
928926

929-
extension Item where BaseData == _StructuredFieldEncoder.NodeType.DataType {
927+
extension Item {
930928
fileprivate init(_ partialItem: _StructuredFieldEncoder.NodeType.PartialItem) {
931929
self.init(bareItem: partialItem.bareItem!, parameters: partialItem.parameters)
932930
}

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