refactor!: migrated to extension macro (#21)

BREAKING CHANGE: use `MemberInit` macro for memberwise initializer(s)

Author: soumyamahunt

.github/workflows/main.yml

@@ -23,30 +23,54 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  analyze:
-    name: Analyze
-    if: github.event_name != 'workflow_dispatch'
-    uses: SwiftyLab/ci/.github/workflows/analyze.yml@main
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-    with:
-      matrix: >
-        {
-          "include": [
-            {
-              "os": "ubuntu-latest",
-              "language": "swift",
-              "swift": "5.9"
-            },
-            {
-              "os": "macos-13",
-              "language": "swift",
-              "xcode": "15-beta"
-            }
-          ]
-        }
+  build:
+    name: Build on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+        - os: ubuntu-latest
+          swift: latest
+        - os: macos-13
+          xcode: 15-beta
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Setup repository
+      uses: SwiftyLab/ci/actions/setup@main
+      with:
+        swift: ${{ matrix.swift }}
+        xcode: ${{ matrix.xcode }}
+
+    - name: Build package products
+      run: swift build --build-tests
+
+  # analyze:
+  #   name: Analyze
+  #   if: github.event_name != 'workflow_dispatch'
+  #   uses: SwiftyLab/ci/.github/workflows/analyze.yml@main
+  #   permissions:
+  #     actions: read
+  #     contents: read
+  #     security-events: write
+  #   with:
+  #     matrix: >
+  #       {
+  #         "include": [
+  #           {
+  #             "os": "ubuntu-latest",
+  #             "language": "swift",
+  #             "swift": "latest"
+  #           },
+  #           {
+  #             "os": "macos-13",
+  #             "language": "swift",
+  #             "xcode": "15-beta"
+  #           }
+  #         ]
+  #       }
 
   # spell-check:
   #   name: Run spell check
@@ -60,24 +84,24 @@ jobs:
   #     with:
   #       config_path: .github/config/spellcheck.yml
 
-  swift-package-test:
-    name: Swift Package
-    uses: SwiftyLab/ci/.github/workflows/swift-package.yml@main
-    secrets: inherit
-    with:
-      matrix: >
-        {
-          "include": [
-            {
-              "os": "ubuntu-latest",
-              "swift": "5.9"
-            },
-            {
-              "os": ""macos-13",
-              "xcode": "15-beta"
-            }
-          ]
-        }
+  # swift-package-test:
+  #   name: Swift Package
+  #   uses: SwiftyLab/ci/.github/workflows/swift-package.yml@main
+  #   secrets: inherit
+  #   with:
+  #     matrix: >
+  #       {
+  #         "include": [
+  #           {
+  #             "os": "ubuntu-latest",
+  #             "swift": "5.9"
+  #           },
+  #           {
+  #             "os": ""macos-13",
+  #             "xcode": "15-beta"
+  #           }
+  #         ]
+  #       }
       # {
       #   "os": "windows-latest",
       #   "swift": "5.9"
@@ -86,7 +110,8 @@ jobs:
   ci:
     name: CI
     if: github.event_name == 'push'
-    needs: [analyze, swift-package-test]
+    needs: build
+    # needs: [analyze, swift-package-test]
     uses: SwiftyLab/ci/.github/workflows/ci.yml@main
 
   cd:
@@ -96,10 +121,11 @@ jobs:
       (always() &&
        github.event_name == 'workflow_dispatch' &&
        github.event.inputs.release == 'true' &&
-       needs.swift-package-test.result == 'success' &&
        (needs.ci.result == 'success' || needs.ci.result == 'skipped') &&
-       (needs.analyze.result == 'success' || needs.analyze.result == 'skipped'))
-    needs: [analyze, swift-package-test, ci]
+       (needs.build.result == 'success' || needs.build.result == 'skipped'))
+    #  needs.swift-package-test.result == 'success' &&
+    needs: [build, ci]
+    # needs: [analyze, swift-package-test, ci]
     uses: SwiftyLab/ci/.github/workflows/cd.yml@main
     with:
       version: ${{ github.event.inputs.version }}

.swift-format

@@ -0,0 +1,18 @@
+{
+    "version": 1,
+    "lineLength": 80,
+    "indentation": {
+        "spaces": 4
+    },
+    "maximumBlankLines": 1,
+    "respectsExistingLineBreaks": true,
+    "indentConditionalCompilationBlocks": false,
+    "rules": {
+        "AllPublicDeclarationsHaveDocumentation": true,
+        "NeverForceUnwrap": true,
+        "NeverUseForceTry": true,
+        "NoAccessLevelOnExtensionDeclaration": false,
+        "OrderedImports": true,
+        "ValidateDocumentationComments": true
+    }
+}

Package.swift

@@ -3,20 +3,6 @@
 import PackageDescription
 import CompilerPluginSupport
 
-let macroDeps: [Target.Dependency] = [
-    .product(name: "SwiftSyntax", package: "swift-syntax"),
-    .product(name: "SwiftDiagnostics", package: "swift-syntax"),
-    .product(name: "SwiftSyntaxBuilder", package: "swift-syntax"),
-    .product(name: "SwiftSyntaxMacros", package: "swift-syntax"),
-    .product(name: "SwiftCompilerPlugin", package: "swift-syntax"),
-    .product(name: "OrderedCollections", package: "swift-collections"),
-]
-
-let testDeps: [Target.Dependency] = [
-    "CodableMacroPlugin", "MetaCodable",
-    .product(name: "SwiftSyntaxMacrosTestSupport", package: "swift-syntax"),
-]
-
 let package = Package(
     name: "MetaCodable",
     platforms: [
@@ -32,11 +18,28 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/apple/swift-syntax.git", from: "509.0.0"),
         .package(url: "https://github.com/apple/swift-collections.git", from: "1.0.4"),
+        .package(url: "https://github.com/apple/swift-format", from: "509.0.0"),
         .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.0.0"),
     ],
     targets: [
-        .macro(name: "CodableMacroPlugin", dependencies: macroDeps),
+        .macro(
+            name: "CodableMacroPlugin",
+            dependencies: [
+                .product(name: "SwiftSyntax", package: "swift-syntax"),
+                .product(name: "SwiftDiagnostics", package: "swift-syntax"),
+                .product(name: "SwiftSyntaxBuilder", package: "swift-syntax"),
+                .product(name: "SwiftSyntaxMacros", package: "swift-syntax"),
+                .product(name: "SwiftCompilerPlugin", package: "swift-syntax"),
+                .product(name: "OrderedCollections", package: "swift-collections"),
+            ]
+        ),
         .target(name: "MetaCodable", dependencies: ["CodableMacroPlugin"]),
-        .testTarget(name: "MetaCodableTests", dependencies: testDeps),
+        .testTarget(
+            name: "MetaCodableTests",
+            dependencies: [
+                "CodableMacroPlugin", "MetaCodable",
+                .product(name: "SwiftSyntaxMacrosTestSupport", package: "swift-syntax"),
+            ]
+        ),
     ]
 )

README.md

@@ -21,7 +21,6 @@ Supercharge `Swift`'s `Codable` implementations with macros.
 - Allows to create flattened model for nested `CodingKey` values with ``CodedAt(_:)`` and ``CodedIn(_:)``.
 - Allows to create composition of multiple `Codable` types with ``CodedAt(_:)`` passing no arguments.
 - Allows to provide default value in case of decoding failures with ``Default(_:)``.
-- Generates member-wise initializer(s) considering the above default value syntax as well.
 - Allows to create custom decoding/encoding strategies with ``HelperCoder`` and using them with ``CodedBy(_:)``. i.e. ``LossySequenceCoder`` etc.
 - Allows to ignore specific properties from decoding/encoding with ``IgnoreCoding()``, ``IgnoreDecoding()`` and ``@IgnoreEncoding()``.
 - Allows to use camel-case names for variables according to [Swift API Design Guidelines](https://www.swift.org/documentation/api-design-guidelines/#general-conventions), while enabling a type to work with different case style keys with ``CodingKeys(_:)``.
@@ -185,9 +184,9 @@ struct Coordinate {
 </details>
 
 <details>
-  <summary>Provide default value in case of decoding failures and member-wise initializer(s) generated considers these default values.</summary>
+  <summary>Provide default value in case of decoding failures.</summary>
 
-Instead of throwing error in case of missing data or type mismatch, you can provide a default value that will be assigned in this case. The memberwise initializer generated also uses this default value for the field. The following definition with `MetaCodable`:
+Instead of throwing error in case of missing data or type mismatch, you can provide a default value that will be assigned in this case. The following definition with `MetaCodable`:
 
 ```swift
 @Codable
@@ -197,7 +196,20 @@ struct CodableData {
 }
 ```
 
-will not throw any error when empty JSON(`{}`) or JSON with type mismatch(`{ "field": 5 }`) is provided. The default value will be assigned in such case. Also, the memberwise initializer generated will look like this:
+will not throw any error when empty JSON(`{}`) or JSON with type mismatch(`{ "field": 5 }`) is provided. The default value will be assigned in such case.
+
+Also, memberwise initializer can be generated that uses this default value for the field.
+
+```swift
+@Codable
+@MemberInit
+struct CodableData {
+    @Default("some")
+    let field: String
+}
+```
+
+The memberwise initializer generated will look like this:
 
 ```swift
 init(field: String = "some") {

Sources/CodableMacroPlugin/Attributes/AttributableDeclSyntax.swift

@@ -32,10 +32,10 @@ extension SyntaxProtocol {
             let declaration = declaration as? AttributableDeclSyntax
         else { return [] }
 
-        return declaration.attributes?.compactMap { attribute in
+        return declaration.attributes.compactMap { attribute in
             guard case .attribute(let attribute) = attribute else { return nil }
             return type.init(from: attribute)
-        } ?? []
+        }
     }
 }
 
@@ -45,12 +45,12 @@ extension SyntaxProtocol {
 /// is for this attribute and perform validation of this attribute usage.
 protocol AttributableDeclSyntax: DeclSyntaxProtocol {
     /// The list of attributes attached to this declaration.
-    var attributes: AttributeListSyntax? { get }
+    var attributes: AttributeListSyntax { get }
 }
 
 extension AccessorDeclSyntax: AttributableDeclSyntax {}
 extension ActorDeclSyntax: AttributableDeclSyntax {}
-extension AssociatedtypeDeclSyntax: AttributableDeclSyntax {}
+extension AssociatedTypeDeclSyntax: AttributableDeclSyntax {}
 extension ClassDeclSyntax: AttributableDeclSyntax {}
 extension DeinitializerDeclSyntax: AttributableDeclSyntax {}
 extension EditorPlaceholderDeclSyntax: AttributableDeclSyntax {}
@@ -63,10 +63,9 @@ extension InitializerDeclSyntax: AttributableDeclSyntax {}
 extension MacroDeclSyntax: AttributableDeclSyntax {}
 extension MacroExpansionDeclSyntax: AttributableDeclSyntax {}
 extension MissingDeclSyntax: AttributableDeclSyntax {}
-extension OperatorDeclSyntax: AttributableDeclSyntax {}
 extension PrecedenceGroupDeclSyntax: AttributableDeclSyntax {}
 extension ProtocolDeclSyntax: AttributableDeclSyntax {}
 extension StructDeclSyntax: AttributableDeclSyntax {}
 extension SubscriptDeclSyntax: AttributableDeclSyntax {}
-extension TypealiasDeclSyntax: AttributableDeclSyntax {}
+extension TypeAliasDeclSyntax: AttributableDeclSyntax {}
 extension VariableDeclSyntax: AttributableDeclSyntax {}

Sources/CodableMacroPlugin/Attributes/Attribute.swift

@@ -1,5 +1,5 @@
-import SwiftSyntax
 import SwiftDiagnostics
+import SwiftSyntax
 import SwiftSyntaxMacros
 
 /// A type indicating a macro-attribute.
@@ -62,8 +62,7 @@ extension Attribute {
     /// provided declaration.
     ///
     /// - Parameter declaration: The declaration this macro attribute
-    ///                          is attached to.
-    ///
+    ///   is attached to.
     /// - Returns: Whether this attribute is applied more than once.
     func isDuplicated(in declaration: some SyntaxProtocol) -> Bool {
         return declaration.attributes(for: Self.self).count > 1