Introduce spread (#12)

.swiftpm/xcode/xcshareddata/xcschemes/GrainDescriptorTests.xcscheme

@@ -5,6 +5,36 @@
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "GrainDescriptor"
+               BuildableName = "GrainDescriptor"
+               BlueprintName = "GrainDescriptor"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "GrainDescriptorTests"
+               BuildableName = "GrainDescriptorTests"
+               BlueprintName = "GrainDescriptorTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
    </BuildAction>
    <TestAction
       buildConfiguration = "Debug"
@@ -41,6 +71,15 @@
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"
       debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "GrainDescriptor"
+            BuildableName = "GrainDescriptor"
+            BlueprintName = "GrainDescriptor"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </MacroExpansion>
    </ProfileAction>
    <AnalyzeAction
       buildConfiguration = "Debug">

Sources/GrainDescriptor/Entrypoint.swift

@@ -1,7 +1,7 @@
-@_exported import Alamofire
+import Alamofire
 @_implementationOnly import Darwin.C
-@_exported import Foundation
-@_exported import TSCBasic
+import Foundation
+import TSCBasic
 
 public struct Serialization {
 

Sources/GrainDescriptor/Source.swift

@@ -416,6 +416,14 @@ public struct GrainArray: GrainView {
 
 }
 
+public struct GrainObjectSpread: GrainView {
+
+  public typealias Body = Never
+
+  public var members: [GrainMember]
+
+}
+
 public struct GrainObject: GrainView {
 
   public typealias Body = Never
@@ -426,6 +434,10 @@ public struct GrainObject: GrainView {
     self.members = members()
   }
 
+  public var spread: GrainObjectSpread {
+    .init(members: members)
+  }
+
   public func encode(to encoder: Encoder) throws {
     try members.forEach {
       try $0.encode(to: encoder)
@@ -469,6 +481,10 @@ public struct GrainObject: GrainView {
       return [element]
     }
 
+    public static func buildExpression(_ element: GrainObjectSpread) -> [Element] {
+      element.members
+    }
+
     public static func buildExpression<C: Sequence>(_ elements: C) -> [C.Element] where C.Element == Element {
       Swift.Array(elements)
     }

Tests/GrainDescriptorTests/APNs.swift

@@ -0,0 +1,100 @@
+
+import XCTest
+import GrainDescriptor
+
+// MARK: - Variables
+
+let param_a = GrainMember("param_a") {
+  "111"
+}
+
+let simulatorTarget = GrainMember("Simulator Target Bundle") {
+  "app.muukii.myapp"
+}
+
+final class APNsTests: XCTestCase {
+
+  func test_aggregation() {
+
+    compare(
+      GrainObject {
+        GrainMember("a") {
+          ["a", "b"]
+        }
+        GrainMember("a") {
+          ["a", "b", "c"]
+        }
+      },
+      """
+      {
+        "a" : [
+          "a",
+          "b",
+          "c"
+        ]
+      }
+      """
+    )
+
+  }
+
+  func test_spread() {
+
+    let object1 = GrainObject {
+      GrainMember("a") { 1 }
+    }
+
+    let object2 = GrainObject {
+      GrainMember("a") { 1 }
+      GrainMember("b") { 1 }
+    }
+
+    compare(
+      GrainObject {
+        object1.spread
+        object2.spread
+      },
+      """
+      {
+        "a" : 1,
+        "b" : 1
+      }
+      """
+    )
+
+  }
+
+}
+//
+//struct APNS<Content: GrainView>: GrainView {
+//
+//  let content: Content
+//
+//  init(@GrainBuilder _ content: () -> Content) {
+//    self.content = content()
+//  }
+//
+//  var body: some GrainView {
+//    GrainObject {
+//      content
+//    }
+//  }
+//
+//}
+
+struct APS: GrainView {
+
+  let alert: String
+
+  var body: some GrainView {
+
+    GrainObject {
+//      GrainMember("alert") {
+//        alert
+//      }
+    }
+
+  }
+}
+
+

Tests/GrainDescriptorTests/Tests.swift

@@ -1,24 +1,28 @@
 import XCTest
 
-@testable import GrainDescriptor
+import GrainDescriptor
 
-final class JSONDSLTests: XCTestCase {
+let encoder: JSONEncoder = {
+  let e = JSONEncoder()
+  e.outputFormatting = .prettyPrinted
+  return e
+}()
 
-  let encoder = JSONEncoder()
+func toString(_ j: some GrainView) -> String {
+  let data = try! encoder.encode(j)
+  return String(data: data, encoding: .utf8)!
+}
 
-  func toString(_ j: some GrainView) -> String {
-    let data = try! encoder.encode(j)
-    return String(data: data, encoding: .utf8)!
-  }
+func compare(
+  _ j: some GrainView,
+  _ expects: String,
+  file: StaticString = #filePath,
+  line: UInt = #line
+) {
+  XCTAssertEqual(toString(j), expects, file: file, line: line)
+}
 
-  func compare(
-    _ j: some GrainView,
-    _ expects: String,
-    file: StaticString = #filePath,
-    line: UInt = #line
-  ) {
-    XCTAssertEqual(toString(j), expects, file: file, line: line)
-  }
+final class JSONDSLTests: XCTestCase {
 
   override func setUp() {
     encoder.outputFormatting = .prettyPrinted