Add initial package

Author: omaralbeik

.gitignore

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+## Xcode
+.DS_Store
+
+## Build generated
+build/
+DerivedData/
+build.log
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+
+## Other
+*.moved-aside
+*.xcuserstate
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+## Swift Package Manager
+.build/
+.swiftpm/

LICENSE

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+MIT License
+
+Copyright (c) 2015-2022 SwifterSwift (https://github.com/swifterswift)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Package.swift

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+// swift-tools-version: 5.6
+
+import PackageDescription
+
+// Add your modules here
+
+let modules = [
+    "Stdlib",
+    "Foundation",
+]
+
+let package = Package(
+    name: "SwifterSwift",
+    platforms: [
+        .iOS(.v10),
+        .macOS(.v10_10),
+        .tvOS(.v9),
+        .watchOS(.v2),
+    ],
+    products: products(modules),
+    targets: targets(modules)
+)
+
+// MARK: - Private Helpers
+
+private func products(_ modules: [String]) -> [Product] {
+    let main = Product.library(name: "SwifterSwift", targets: ["SwifterSwift"])
+    return [main] + modules.map(library(module:))
+}
+
+func library(module: String) -> Product {
+    .library(name: "Swifter\(module)", targets: ["Swifter\(module)"])
+}
+
+func targets(_ modules: [String]) -> [Target] {
+    let main = Target.target(
+        name: "SwifterSwift",
+        dependencies: modules.map { .init(stringLiteral: "Swifter\($0)") },
+        path: "Sources/SwifterSwift"
+    )
+    return [main] + modules.map(target) + modules.map(testTarget)
+}
+
+func target(module: String) -> Target {
+    return Target.target(name: "Swifter\(module)", path: "Sources/\(module)")
+}
+
+func testTarget(module: String) -> Target {
+    return Target.testTarget(
+        name: "\(module)Tests",
+        dependencies: [.init(stringLiteral: "Swifter\(module)")],
+        path: "Tests/\(module)"
+    )
+}

README.md

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+# SwifterSwift v6
+
+A temporary repository to serve as a PoC for SwifterSwift v6

Sources/Foundation/CalendarExtensions.swift

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+#if canImport(Foundation)
+import Foundation
+
+public extension Calendar {
+    /// SwifterSwift: Return the number of days in the month for a specified 'Date'.
+    ///
+    ///		let date = Date() // "Jan 12, 2017, 7:07 PM"
+    ///		Calendar.current.numberOfDaysInMonth(for: date) -> 31
+    ///
+    /// - Parameter date: the date form which the number of days in month is calculated.
+    /// - Returns: The number of days in the month of 'Date'.
+    func numberOfDaysInMonth(for date: Date) -> Int {
+        return range(of: .day, in: .month, for: date)!.count
+    }
+}
+#endif

Sources/Stdlib/BoolExtensions.swift

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+public extension Bool {
+    /// SwifterSwift: Return 1 if true, or 0 if false.
+    ///
+    ///        false.int -> 0
+    ///        true.int -> 1
+    ///
+    var int: Int {
+        return self ? 1 : 0
+    }
+}
+
+public extension Bool {
+    /// SwifterSwift: Return "true" if true, or "false" if false.
+    ///
+    ///        false.string -> "false"
+    ///        true.string -> "true"
+    ///
+    var string: String {
+        return self ? "true" : "false"
+    }
+}

Sources/SwifterSwift/SwifterSwift.swift

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+@_exported import SwifterStdlib
+@_exported import SwifterFoundation

SwifterSwift.podspec

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+Pod::Spec.new do |s|
+  s.name = 'SwifterSwift'
+  s.version = '6.0.0'
+  s.summary = 'A handy collection of native Swift extensions to boost your productivity.'
+  s.homepage = 'https://github.com/SwifterSwift/SwifterSwift'
+  s.license = { type: 'MIT', file: 'LICENSE' }
+  s.documentation_url = 'http://swifterswift.com/docs'
+  s.authors = { 'SwifterSwift Contributors' => 'https://github.com/SwifterSwift/SwifterSwift/graphs/contributors' }
+  
+  s.ios.deployment_target = '10.0'
+  s.osx.deployment_target = '10.10'
+  s.tvos.deployment_target = '9.0'
+  s.watchos.deployment_target = '2.0'
+
+  s.swift_versions = ['5.6']
+  s.source = { git: 'https://github.com/SwifterSwift/SwifterSwift.git', tag: s.version.to_s }
+  s.source_files = 'Sources/**/*.swift'
+
+  # SwiftStdlib Extensions
+  s.subspec 'SwiftStdlib' do |sp|
+    sp.source_files  = 'Sources/Stdlib/*.swift'
+  end
+
+  # Foundation Extensions
+  s.subspec 'Foundation' do |sp|
+    sp.source_files  = 'Sources/Foundation/*.swift'
+  end
+end

Tests/Foundation/CalendarExtensionsTests.swift

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+@testable import SwifterFoundation
+import XCTest
+
+#if canImport(Foundation)
+import Foundation
+
+final class CalendarExtensionTests: XCTestCase {
+    func testNumberOfDaysInAMonth() {
+        let calendar = Calendar(identifier: .gregorian)
+        let longMonths = [1, 3, 5, 7, 8, 10, 12]
+        let shortMonths = [4, 6, 9, 11]
+        let febDateComponent = DateComponents(year: 2015, month: 2)
+        let febDate = calendar.date(from: febDateComponent)!
+        let leapYearDateComponent = DateComponents(year: 2020, month: 2)
+        let leapYearDate = calendar.date(from: leapYearDateComponent)!
+        let longMonthsDateComponents = longMonths.map { DateComponents(year: 2015, month: $0) }
+        let shortMonthsDateComponents = shortMonths.map { DateComponents(year: 2015, month: $0) }
+        let longMonthDates = longMonthsDateComponents.compactMap { calendar.date(from: $0) }
+        let shortMonthDates = shortMonthsDateComponents.compactMap { calendar.date(from: $0) }
+        longMonthDates.forEach { XCTAssertEqual(calendar.numberOfDaysInMonth(for: $0), 31) }
+        shortMonthDates.forEach { XCTAssertEqual(calendar.numberOfDaysInMonth(for: $0), 30) }
+        XCTAssertEqual(calendar.numberOfDaysInMonth(for: febDate), 28)
+        XCTAssertEqual(calendar.numberOfDaysInMonth(for: leapYearDate), 29)
+    }
+}
+#endif

Tests/Stdlib/BoolExtensionsTests.swift

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+@testable import SwifterStdlib
+import XCTest
+
+final class BoolExtensionsTests: XCTestCase {
+    func testInt() {
+        XCTAssertEqual(true.int, 1)
+        XCTAssertEqual(false.int, 0)
+    }
+    
+    func testString() {
+        XCTAssertEqual(true.string, "true")
+        XCTAssertEqual(false.string, "false")
+    }
+}