Support Embedded Swift

Sources/ExtrasJSON/ArrayKey.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct ArrayKey: CodingKey, Equatable {
     init(index: Int) {
         self.intValue = index
@@ -24,3 +24,4 @@ func == (lhs: ArrayKey, rhs: ArrayKey) -> Bool {
     precondition(rhs.intValue != nil)
     return lhs.intValue == rhs.intValue
 }
+#endif

Sources/ExtrasJSON/Decoding/JSONDecoder.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 public struct XJSONDecoder {
     public var userInfo: [CodingUserInfoKey: Any] = [:]
 
@@ -80,3 +80,4 @@ extension JSONDecoderImpl: Decoder {
         )
     }
 }
+#endif

Sources/ExtrasJSON/Decoding/JSONKeyedDecodingContainer.swift

@@ -1,3 +1,4 @@
+#if !hasFeature(Embedded)
 struct JSONKeyedDecodingContainer<K: CodingKey>: KeyedDecodingContainerProtocol {
     typealias Key = K
 
@@ -188,3 +189,4 @@ extension JSONKeyedDecodingContainer {
         return floatingPoint
     }
 }
+#endif

Sources/ExtrasJSON/Decoding/JSONSingleValueDecodingContainer.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct JSONSingleValueDecodingContainter: SingleValueDecodingContainer {
     let impl: JSONDecoderImpl
     let value: JSONValue
@@ -121,3 +121,4 @@ extension JSONSingleValueDecodingContainter {
         return floatingPoint
     }
 }
+#endif

Sources/ExtrasJSON/Decoding/JSONUnkeyedDecodingContainer.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct JSONUnkeyedDecodingContainer: UnkeyedDecodingContainer {
     let impl: JSONDecoderImpl
     let codingPath: [CodingKey]
@@ -205,3 +205,4 @@ extension JSONUnkeyedDecodingContainer {
         return float
     }
 }
+#endif

Sources/ExtrasJSON/EmbeddedHelpers.swift

@@ -0,0 +1,31 @@
+#if hasFeature(Embedded)
+@inlinable
+public func memmove(dest: UnsafeMutableRawPointer,
+                         src: UnsafeRawPointer,
+                         size: Int) {
+  if size <= 0 || dest == src { return }
+
+  let d = dest.bindMemory(to: UInt8.self, capacity: size)
+  let s = src.bindMemory(to: UInt8.self, capacity: size)
+
+  // Compare raw addresses to detect overlap direction
+  let dAddr = UInt(bitPattern: d)
+  let sAddr = UInt(bitPattern: s)
+
+  if sAddr < dAddr && dAddr < sAddr &+ UInt(size) {
+    // Overlap and dest starts inside src: copy backwards
+    var i = size
+    while i > 0 {
+      i &-= 1
+      d[i] = s[i]
+    }
+  } else {
+    // No harmful overlap: copy forwards
+    var i = 0
+    while i < size {
+      d[i] = s[i]
+      i &+= 1
+    }
+  }
+}
+#endif

Sources/ExtrasJSON/Encoding/JSONEncoder.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 enum JSONFuture {
     case value(JSONValue)
     case nestedArray(JSONArray)
@@ -179,3 +179,4 @@ extension JSONEncoderImpl: Encoder {
         return JSONSingleValueEncodingContainer(impl: self, codingPath: self.codingPath)
     }
 }
+#endif

Sources/ExtrasJSON/Encoding/JSONKeyedEncodingContainer.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct JSONKeyedEncodingContainer<K: CodingKey>: KeyedEncodingContainerProtocol {
     typealias Key = K
 
@@ -141,3 +141,4 @@ extension JSONKeyedEncodingContainer {
         self.object.set(.number(value.description), for: key.stringValue)
     }
 }
+#endif

Sources/ExtrasJSON/Encoding/JSONSingleValueEncodingContainer.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct JSONSingleValueEncodingContainer: SingleValueEncodingContainer {
     let impl: JSONEncoderImpl
     let codingPath: [CodingKey]
@@ -107,3 +107,4 @@ extension JSONSingleValueEncodingContainer {
         self.impl.singleValue = .number(value.description)
     }
 }
+#endif

Sources/ExtrasJSON/Encoding/JSONUnkeyedEncodingContainer.swift

@@ -1,4 +1,4 @@
-
+#if !hasFeature(Embedded)
 struct JSONUnkeyedEncodingContainer: UnkeyedEncodingContainer {
     let impl: JSONEncoderImpl
     let array: JSONArray
@@ -136,3 +136,4 @@ extension JSONUnkeyedEncodingContainer {
         self.array.append(.number(value.description))
     }
 }
+#endif