Add Apple Watch and Apple TV support (#19)

.github/workflows/swift.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+	push:
+		branches:
+			- main
+	pull_request:
+		branches:
+			- '*'
+	workflow_dispatch:
+
+concurrency:
+	group: ci-${{ github.ref }}
+	cancel-in-progress: true
+
+jobs:
+	library:
+		runs-on: macos-12
+		strategy:
+			matrix:
+				xcode: ['13.4.1', '14.0.1']
+				config: ['debug', 'release']
+		steps:
+			- uses: actions/checkout@v3
+			- name: Select Xcode ${{ matrix.xcode }}
+				run: sudo xcode-select -s /Applications/Xcode_${{ matrix.xcode }}.app
+			- name: Run ${{ matrix.config }} tests
+				run: CONFIG=${{ matrix.config }} make test-library

Makefile

@@ -0,0 +1,21 @@
+PLATFORM_IOS = iOS Simulator,name=iPhone 11 Pro Max
+PLATFORM_MACOS = macOS
+PLATFORM_MAC_CATALYST = macOS,variant=Mac Catalyst
+PLATFORM_TVOS = tvOS Simulator,name=Apple TV
+PLATFORM_WATCHOS = watchOS Simulator,name=Apple Watch Series 7 (45mm)
+
+default: test-all
+
+test-all: test-library
+
+test-library:
+	swift test
+
+format:
+	swift format \
+		--ignore-unparsable-files \
+		--in-place \
+		--recursive \
+		./Examples ./Package.swift ./Sources ./Tests
+
+.PHONY: format test-all

Package.swift

@@ -3,15 +3,16 @@
 
 import PackageDescription
 
+let development = false
+
 let cSettings: [CSetting] = [
     // Basic config values that are universal and require no dependencies.
     // https://github.com/bitcoin-core/secp256k1/blob/master/src/basic-config.h#L12-L13
     .define("ECMULT_WINDOW_SIZE", to: "15"),
     .define("ECMULT_GEN_PREC_BITS", to: "4"),
 
-    // Enable modules in secp256k1.
-    // See bottom of: Sources/secp256k1/libsecp256k1/src/secp256k1.c
-    // For list
+    // Enable modules in secp256k1, for list scroll down to bottom of:
+    // Sources/secp256k1/libsecp256k1/src/secp256k1.c
     .define("ENABLE_MODULE_ECDH"),
     .define("ENABLE_MODULE_RECOVERY"),
     .define("ENABLE_MODULE_SCHNORRSIG"),
@@ -21,8 +22,10 @@ let cSettings: [CSetting] = [
 let package = Package(
     name: "K1",
     platforms: [
-      .macOS(.v11),
       .iOS(.v13),
+      .macOS(.v11),
+      .tvOS(.v13),
+      .watchOS(.v6),
     ],
     products: [
         .library(
@@ -85,3 +88,15 @@ let package = Package(
     ]
 )
 
+if development {
+    for target in package.targets {
+      target.swiftSettings = target.swiftSettings ?? []
+      target.swiftSettings?.append(
+        .unsafeFlags([
+          "-Xfrontend", "-warn-concurrency",
+          "-Xfrontend", "-enable-actor-data-race-checks",
+          "-enable-library-evolution",
+        ])
+      )
+    }
+}