R.swift to Asset Symbols

Transcript

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2. .FTXJGU let name = "(redacted)" let twitter = "417_72ki" let github = "417-72KI" let company = "(redacted)" var products = [ "MockUserDefaults", "MultipartFormDataParser", "BuildConfig.swift", "SSGH", ] var contributing = [ "Danger-Swift", "octokit.swift", "etc..." ]
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15. ରԠࡦ A3TXJGU3FTPVSDFTAΛ໌ࣔ͢Δ import SwiftUI import RswiftResources struct Item { var image: ImageResource } struct ItemView: View { var item: Item var body: some View { VStack { Image(item.image) } } } #if DEBUG struct ItemView_Previews: PreviewProvider { static var previews: some View { Group { ItemView(item: .init(image: R.image.foo)) // Cannot convert value of type } } } #endif
16. ରԠࡦ A3TXJGU3FTPVSDFTAΛ໌ࣔ͢Δ import SwiftUI import RswiftResources struct Item { var image: RswiftResources.ImageResource } struct ItemView: View { var item: Item var body: some View { VStack { Image(item.image) } } } #if DEBUG struct ItemView_Previews: PreviewProvider { static var previews: some View { Group { ItemView(item: .init(image: R.image.foo)) // no error } } } #endif
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18. ରԠࡦ 3ʓʓͷݺͼग़͠Λ"TTFU
    4ZNCPMTʹࠩ͠ସ͑Δ import SwiftUI import RswiftResources struct Item { var image: ImageResource } struct ItemView: View { var item: Item var body: some View { VStack { Image(item.image) } } } #if DEBUG struct ItemView_Previews: PreviewProvider { static var previews: some View { Group { ItemView(item: .init(image: R.image.foo)) // Cannot convert value of type } } } #endif
19. ରԠࡦ 3ʓʓͷݺͼग़͠Λ"TTFU
    4ZNCPMTʹࠩ͠ସ͑Δ import SwiftUI import RswiftResources struct Item { var image: ImageResource } struct ItemView: View { var item: Item var body: some View { VStack { Image(item.image) } } } #if DEBUG struct ItemView_Previews: PreviewProvider { static var previews: some View { Group { ItemView(item: .init(image: .foo)) // no error } } } #endif
20. ରԠࡦ 3ʓʓͷݺͼग़͠Λ"TTFU
    4ZNCPMTʹࠩ͠ସ͑Δ import SwiftUI struct Item { var image: ImageResource } struct ItemView: View { var item: Item var body: some View { VStack { Image(item.image) } } } #if DEBUG struct ItemView_Previews: PreviewProvider { static var previews: some View { Group { ItemView(item: .init(image: .foo)) // no error } } } #endif
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23. 3TXJGUͰݺͼग़ͤΔόϦΤʔγϣϯ // Image(UIKit) R.image.foo() UIImage(resource: R.image.foo) // Image(SwiftUI) Image(R.image.foo) Image(uiImage: R.image.foo()!) Image(uiImage: UIImage(resource: R.image.foo)!) // Color(UIKit) R.color.primary() UIColor(resource: R.color.primary) //Color(SwiftUI) Color(R.color.primary) Color(uiColor: R.color.primary()!) Color(uiColor: UIColor(resource: R.color.primary)!)
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31. 3JNBHFGPP
    
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    GPP final class RswiftResourceRewriter: SyntaxRewriter { private let rewritableAssets = [ "image": "UIImage", "color": "UIColor" ] override func visit(_ node: FunctionCallExprSyntax) -> ExprSyntax { if let base = node.calledExpression.as(MemberAccessExprSyntax.self), let expr = visit(base).as(MemberAccessExprSyntax.self), base != expr, let assetType = base.base?.as(MemberAccessExprSyntax.self)?.declName.baseName.text, let convertedType = rewritableAssets[assetType] { // return `UIImage(resource: .expr)` or `UIColor(resource: .expr)` syntax } }
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    GPP override func visit(_ node: MemberAccessExprSyntax) -> ExprSyntax { if let base = node.base?.as(MemberAccessExprSyntax.self), base.base?.as(DeclReferenceExprSyntax.self)?.baseName.text == "R" { let resourceName = node.declName.baseName.text if rewritableAssets.keys.contains(base.declName.baseName.text) { return ExprSyntax( MemberAccessExprSyntax( leadingTrivia: node.leadingTrivia, period: .periodToken(), name: .identifier(resourceName.camelized), trailingTrivia: node.trailingTrivia ) ) } } return super.visit(node) }
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34. 6**NBHFΛ௚઀ม׵ final class UIImageRewriter: SyntaxRewriter { private let typeName = "UIImage" override func visit(_ node: FunctionCallExprSyntax) -> ExprSyntax { if case typeName = node.calledExpression.as(DeclReferenceExprSyntax.self)?.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } if let member = node.calledExpression.as(MemberAccessExprSyntax.self), case "init" = member.declName.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } return super.visit(node) }
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    GPP final class UIImageRewriter: SyntaxRewriter { private let typeName = "UIImage" override func visit(_ node: FunctionCallExprSyntax) -> ExprSyntax { if case typeName = node.calledExpression.as(DeclReferenceExprSyntax.self)?.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } if let member = node.calledExpression.as(MemberAccessExprSyntax.self), case "init" = member.declName.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } return super.visit(node) }
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    GPP final class UIImageRewriter: SyntaxRewriter { private let typeName = "UIImage" override func visit(_ node: FunctionCallExprSyntax) -> ExprSyntax { if case typeName = node.calledExpression.as(DeclReferenceExprSyntax.self)?.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } if let member = node.calledExpression.as(MemberAccessExprSyntax.self), case "init" = member.declName.baseName.text, let argument = node.arguments.first, argument.label?.text == "resource" { let newArgument = rswiftResourceRewriter.visit(argument) return ExprSyntax(node.with(\.arguments, [newArgument])) } return super.visit(node) }
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