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* Keep log file in root of volume for controlling installed versions. * Add several new resources * Integrate macros. Fix test plan.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| .DS_Store | ||
| /.build | ||
| /Packages | ||
| xcuserdata/ | ||
| DerivedData/ | ||
| .swiftpm/configuration/registries.json | ||
| .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata | ||
| .netrc |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // swift-tools-version: 5.9 | ||
| // The swift-tools-version declares the minimum version of Swift required to build this package. | ||
|
|
||
| import PackageDescription | ||
| import CompilerPluginSupport | ||
|
|
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| let package = Package( | ||
| name: "EmpusaMacros", | ||
| platforms: [.macOS(.v10_15), .iOS(.v13), .tvOS(.v13), .watchOS(.v6), .macCatalyst(.v13)], | ||
| products: [ | ||
| // Products define the executables and libraries a package produces, making them visible to other packages. | ||
| .library( | ||
| name: "EmpusaMacros", | ||
| targets: ["EmpusaMacros"] | ||
| ), | ||
| ], | ||
| dependencies: [ | ||
| // Depend on the Swift 5.9 release of SwiftSyntax | ||
| .package(url: "https://github.com/apple/swift-syntax.git", from: "509.0.0"), | ||
| ], | ||
| targets: [ | ||
| // Targets are the basic building blocks of a package, defining a module or a test suite. | ||
| // Targets can depend on other targets in this package and products from dependencies. | ||
| // Macro implementation that performs the source transformation of a macro. | ||
| .macro( | ||
| name: "EmpusaMacrosImpl", | ||
| dependencies: [ | ||
| .product(name: "SwiftSyntaxMacros", package: "swift-syntax"), | ||
| .product(name: "SwiftCompilerPlugin", package: "swift-syntax") | ||
| ] | ||
| ), | ||
|
|
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| // Library that exposes a macro as part of its API, which is used in client programs. | ||
| .target(name: "EmpusaMacros", dependencies: ["EmpusaMacrosImpl"]), | ||
|
|
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| // A test target used to develop the macro implementation. | ||
| .testTarget( | ||
| name: "EmpusaMacrosTests", | ||
| dependencies: [ | ||
| "EmpusaMacrosImpl", | ||
| .product(name: "SwiftSyntaxMacrosTestSupport", package: "swift-syntax"), | ||
| ] | ||
| ), | ||
| ] | ||
| ) |
4 changes: 4 additions & 0 deletions
4
Packages/EmpusaMacros/Sources/EmpusaMacros/EmpusaMacros.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| import Foundation | ||
|
|
||
| @freestanding(expression) | ||
| public macro URL(_ stringLiteral: String) -> URL = #externalMacro(module: "EmpusaMacrosImpl", type: "URLMacro") |
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11
Packages/EmpusaMacros/Sources/EmpusaMacrosImpl/EmpusaMacrosPlugin.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| import SwiftCompilerPlugin | ||
| import SwiftSyntax | ||
| import SwiftSyntaxBuilder | ||
| import SwiftSyntaxMacros | ||
|
|
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| @main | ||
| struct EmpusaMacrosPlugin: CompilerPlugin { | ||
| let providingMacros: [Macro.Type] = [ | ||
| URLMacro.self | ||
| ] | ||
| } |
41 changes: 41 additions & 0 deletions
41
Packages/EmpusaMacros/Sources/EmpusaMacrosImpl/URLMacro.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| import Foundation | ||
| import SwiftCompilerPlugin | ||
| import SwiftSyntax | ||
| import SwiftSyntaxBuilder | ||
| import SwiftSyntaxMacros | ||
|
|
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| enum URLMacroError: Error, CustomStringConvertible { | ||
| case requiresStaticStringLiteral | ||
| case malformedURL(urlString: String) | ||
|
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| var description: String { | ||
| switch self { | ||
| case .requiresStaticStringLiteral: | ||
| return "#URL requires a static string literal" | ||
| case .malformedURL(let urlString): | ||
| return "The input URL is malformed: \(urlString)" | ||
| } | ||
| } | ||
| } | ||
|
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| public struct URLMacro: ExpressionMacro { | ||
| public static func expansion( | ||
| of node: some FreestandingMacroExpansionSyntax, | ||
| in context: some MacroExpansionContext | ||
| ) throws -> ExprSyntax { | ||
| guard | ||
| let argument = node.argumentList.first?.expression, | ||
| let segments = argument.as(StringLiteralExprSyntax.self)?.segments, | ||
| segments.count == 1, | ||
| case .stringSegment(let literalSegment)? = segments.first | ||
| else { | ||
| throw URLMacroError.requiresStaticStringLiteral | ||
| } | ||
|
|
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| guard let _ = URL(string: literalSegment.content.text) else { | ||
| throw URLMacroError.malformedURL(urlString: "\(argument)") | ||
| } | ||
|
|
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| return "URL(string: \(argument))!" | ||
| } | ||
| } |
46 changes: 46 additions & 0 deletions
46
Packages/EmpusaMacros/Tests/EmpusaMacrosTests/EmpusaMacrosTests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import SwiftSyntaxMacros | ||
| import SwiftSyntaxMacrosTestSupport | ||
| import XCTest | ||
|
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| // Macro implementations build for the host, so the corresponding module is not available when cross-compiling. Cross-compiled tests may still make use of the macro itself in end-to-end tests. | ||
| #if canImport(EmpusaMacrosMacros) | ||
| import EmpusaMacrosMacros | ||
|
|
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| let testMacros: [String: Macro.Type] = [ | ||
| "stringify": StringifyMacro.self, | ||
| ] | ||
| #endif | ||
|
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| final class EmpusaMacrosTests: XCTestCase { | ||
| func testMacro() throws { | ||
| #if canImport(EmpusaMacrosMacros) | ||
| assertMacroExpansion( | ||
| """ | ||
| #stringify(a + b) | ||
| """, | ||
| expandedSource: """ | ||
| (a + b, "a + b") | ||
| """, | ||
| macros: testMacros | ||
| ) | ||
| #else | ||
| throw XCTSkip("macros are only supported when running tests for the host platform") | ||
| #endif | ||
| } | ||
|
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| func testMacroWithStringLiteral() throws { | ||
| #if canImport(EmpusaMacrosMacros) | ||
| assertMacroExpansion( | ||
| #""" | ||
| #stringify("Hello, \(name)") | ||
| """#, | ||
| expandedSource: #""" | ||
| ("Hello, \(name)", #""Hello, \(name)""#) | ||
| """#, | ||
| macros: testMacros | ||
| ) | ||
| #else | ||
| throw XCTSkip("macros are only supported when running tests for the host platform") | ||
| #endif | ||
| } | ||
| } |
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