Migration to Decimal64 1

Author: dehesa

IG/IG.xcodeproj/project.pbxproj

@@ -793,6 +793,7 @@
 				8D569217245FE63D00E9E621 /* c */,
 				8DDB43AA2479704800A65CA5 /* CharacterSet.swift */,
 				8D3C262422E9FA020080D3C1 /* Collections.swift */,
+				8D911F6422ECF4CA0038E899 /* Decimal.swift */,
 				8DDB43AD2479982800A65CA5 /* Foundation */,
 				8DC4CA4B2149A6CE00344CBF /* Operators.swift */,
 				8DE50471245AD09C001BD304 /* UnfairLock.swift */,
@@ -1065,7 +1066,6 @@
 			children = (
 				8DC4CA492149A6CE00344CBF /* Date.swift */,
 				8D9FB786231F943C00D76B6A /* DateFormatter.swift */,
-				8D911F6422ECF4CA0038E899 /* Decimal.swift */,
 				8D88F5F8246C79D900743B2B /* UTC.swift */,
 			);
 			path = Foundation;

IG/sources/api/API.swift

@@ -14,23 +14,23 @@ public final class API {
     internal final let channel: IG.API.Channel
 
     /// Namespace for endpoints related to the current API session (e.g. log in/out, refresh token, etc.).
-    public final var session: IG.API.Request.Session { .init(api: self) }
+    @inlinable public final var session: IG.API.Request.Session { .init(api: self) }
     /// Namespace for endpoints related to the user's account/s (e.g. account info, transactions, activity, etc.).
-    public final var accounts: IG.API.Request.Accounts { .init(api: self) }
+    @inlinable public final var accounts: IG.API.Request.Accounts { .init(api: self) }
     /// Namespace for endpoints related to the IG markets (e.g. market info, snapshots, etc.).
-    public final var markets: IG.API.Request.Markets { .init(api: self) }
+    @inlinable public final var markets: IG.API.Request.Markets { .init(api: self) }
     /// Namespace for endpoints related to price data point retrieval (e.g. return all data points for EUR/USD market with resolution of 1 minute).
-    public final var price: IG.API.Request.Price { .init(api: self) }
+    @inlinable public final var price: IG.API.Request.Price { .init(api: self) }
     /// Namespace for endpoints related to open positions (e.g. create a position, tweak it, or close it).
-    public final var positions: IG.API.Request.Positions { .init(api: self) }
+    @inlinable public final var positions: IG.API.Request.Positions { .init(api: self) }
     /// Namespace for endpoints related to open working orders (e.g. create a working order, tweak it, or close it).
-    public final var workingOrders: IG.API.Request.WorkingOrders { .init(api: self) }
+    @inlinable public final var workingOrders: IG.API.Request.WorkingOrders { .init(api: self) }
     /// Namespace for endpoints related to IG nodes; that is what IG uses to navigate its tree of available markets.
-    public final var nodes: IG.API.Request.Nodes { .init(api: self) }
+    @inlinable public final var nodes: IG.API.Request.Nodes { .init(api: self) }
     /// Namespace for endpoints related to watchlist management (e.g. create/remove watchlist, add/remove markets to it, etc.).
-    public final var watchlists: IG.API.Request.Watchlists { .init(api: self) }
+    @inlinable public final var watchlists: IG.API.Request.Watchlists { .init(api: self) }
     /// Namespace for endpoints related to endpoints scrapped from IG website (e.g. economic calendar).
-    public final var scrapped: IG.API.Request.Scrapped { .init(api: self) }
+    @inlinable public final var scrapped: IG.API.Request.Scrapped { .init(api: self) }
 
     /// Initializer for an API instance, giving you the default options.
     ///

IG/sources/api/accounts/APIAccounts.swift

@@ -5,10 +5,10 @@ extension IG.API.Request {
     /// List of endpoints related to user accounts.
     public struct Accounts {
         /// Pointer to the actual API instance in charge of calling the endpoint.
-        internal unowned let api: IG.API
+        @usableFromInline internal unowned let api: IG.API
         /// Hidden initializer passing the instance needed to perform the endpoint.
         /// - parameter api: The instance calling the actual endpoints.
-        init(api: IG.API) { self.api = api }
+        @usableFromInline internal init(api: IG.API) { self.api = api }
     }
 }
 

IG/sources/api/dealings/APIPosition.swift

@@ -8,7 +8,7 @@ extension IG.API.Request {
         internal unowned let api: IG.API
         /// Hidden initializer passing the instance needed to perform the endpoint.
         /// - parameter api: The instance calling the actual endpoint.
-        init(api: IG.API) { self.api = api }
+        @usableFromInline internal init(api: IG.API) { self.api = api }
     }
 }
 

IG/sources/api/dealings/APIWorkingOrder.swift

@@ -8,7 +8,7 @@ extension IG.API.Request {
         internal unowned let api: IG.API
         /// Hidden initializer passing the instance needed to perform the endpoint.
         /// - parameter api: The instance calling the actual endpoint.
-        init(api: IG.API) { self.api = api }
+        @usableFromInline internal init(api: IG.API) { self.api = api }
     }
 }
 

IG/sources/api/entities/APIAccount.swift

@@ -1,4 +1,4 @@
-import Foundation
+import Decimals
 
 extension IG.API {
     /// Client account.
@@ -73,13 +73,13 @@ extension IG.API.Account {
     /// Account balances.
     public struct Balance: Decodable {
         /// Balance of funds in the account.
-        public let value: Decimal
+        public let value: Decimal64
         /// Minimum deposit amount required for margins.
-        public let deposit: Decimal
+        public let deposit: Decimal64
         /// Profit & Loss amount.
-        public let profitLoss: Decimal
+        public let profitLoss: Decimal64
         /// Amount available for trading.
-        public let available: Decimal
+        public let available: Decimal64
 
         private enum CodingKeys: String, CodingKey {
             case value = "balance"
@@ -88,7 +88,7 @@ extension IG.API.Account {
             case available
         }
     }
-
+    
     /// Account preferences.
     public struct Preferences: Decodable {
         /// Whether the user wants to be allowed to define trailing stop rules for his trade operations.

IG/sources/api/entities/APIChannel.swift

@@ -7,10 +7,10 @@ extension IG.API {
         /// The `URLSession` instance performing the HTTPS requests.
         internal let session: URLSession
 
-        /// The credentials used to call API endpoints.
-        private var _credentials: IG.API.Credentials?
         /// The lock used to restrict access to the credentials.
         private let _lock: UnfairLock
+        /// The credentials used to call API endpoints.
+        private var _credentials: IG.API.Credentials?
         /// The processing queue for the status cancellable.
         private let _scheduler: DispatchQueue
 

IG/sources/api/entities/APICredentials.swift

@@ -68,7 +68,7 @@ extension IG.API {
         }
 
         /// Returns `true` when the `expirationDate` is in the past.
-        public var isExpired: Bool {
+        @_transparent public var isExpired: Bool {
             self.expirationDate < Date()
         }
     }

IG/sources/api/entities/APIKey.swift

@@ -4,7 +4,7 @@ extension IG.API {
         public let rawValue: String
 
         public init(stringLiteral value: String) {
-            guard Self._validate(value) else { fatalError("The API key provided is not in a valid format") }
+            precondition(Self._validate(value), "The API key provided is not in a valid format")
             self.rawValue = value
         }
 

IG/sources/api/entities/APIUser.swift

@@ -1,5 +1,3 @@
-import Foundation
-
 extension IG.API {
     /// A user within the platform.
     public struct User: ExpressibleByArrayLiteral {
@@ -11,7 +9,7 @@ extension IG.API {
         /// Initializer providing already with fully formed sub-instances.
         /// - parameter name: The user's platform name.
         /// - parameter password: The user's password.
-        @inlinable public init(_ name: Self.Name, _ password: Self.Password) {
+        @_transparent public init(_ name: Self.Name, _ password: Self.Password) {
             self.name = name
             self.password = password
         }
@@ -20,14 +18,14 @@ extension IG.API {
         /// - parameter name: The user's platform name.
         /// - parameter password: The user's password.
         /// - returns: `nil` if the objects were malformed.
-        @inlinable public init?(name: String, passsword: String) {
+        @_transparent public init?(name: String, passsword: String) {
             guard let username = Self.Name(rawValue: name),
                   let password = Self.Password(rawValue: passsword) else { return nil }
             self.init(username, password)
         }
 
-        @inlinable public init(arrayLiteral elements: String...) {
-            guard elements.count == 2 else { fatalError("A '\(Self.self)' type can only be initialized with an array with two non-empty strings") }
+        @_transparent public init(arrayLiteral elements: String...) {
+            precondition(elements.count == 2, "A '\(API.self).\(Self.self)' type can only be initialized with an array with two non-empty strings")
             self.init(.init(stringLiteral: elements[0]), .init(stringLiteral: elements[1]))
         }
     }
@@ -39,7 +37,7 @@ extension IG.API.User {
         public let rawValue: String
 
         public init(stringLiteral value: String) {
-            guard Self._validate(value) else { fatalError("The username '\(value)' is not in a valid format") }
+            precondition(Self._validate(value), "The username '\(value)' is not in a valid format")
             self.rawValue = value
         }
 
@@ -48,7 +46,7 @@ extension IG.API.User {
             self.rawValue = rawValue
         }
 
-        @inlinable public init?(_ description: String) {
+        @_transparent public init?(_ description: String) {
             self.init(rawValue: description)
         }
 
@@ -62,7 +60,7 @@ extension IG.API.User {
             self.rawValue = name
         }
 
-        public static func < (lhs: Self, rhs: Self) -> Bool {
+        @_transparent public static func < (lhs: Self, rhs: Self) -> Bool {
             lhs.rawValue < rhs.rawValue
         }
 
@@ -83,7 +81,7 @@ extension IG.API.User {
         public let rawValue: String
 
         public init(stringLiteral value: String) {
-            guard Self._validate(value) else { fatalError("The password is not in a valid format") }
+            precondition(Self._validate(value), "The password is not in a valid format")
             self.rawValue = value
         }