SwiftLint/Source/SwiftLintFramework/Rules/Lint/ProhibitedInterfaceBuilderR...

54 lines
1.8 KiB
Swift

import SourceKittenFramework
public struct ProhibitedInterfaceBuilderRule: ConfigurationProviderRule, ASTRule, OptInRule, AutomaticTestableRule {
public var configuration = SeverityConfiguration(.warning)
public init() {}
public static let description = RuleDescription(
identifier: "prohibited_interface_builder",
name: "Prohibited Interface Builder",
description: "Creating views using Interface Builder should be avoided.",
kind: .lint,
nonTriggeringExamples: [
"var label: UILabel!",
"@objc func buttonTapped(_ sender: UIButton) {}"
].map(wrapExample),
triggeringExamples: [
"@IBOutlet ↓var label: UILabel!",
"@IBAction ↓func buttonTapped(_ sender: UIButton) {}"
].map(wrapExample)
)
public func validate(file: SwiftLintFile, kind: SwiftDeclarationKind,
dictionary: SourceKittenDictionary) -> [StyleViolation] {
guard let offset = dictionary.offset else {
return []
}
func makeViolation() -> StyleViolation {
return StyleViolation(ruleDescription: type(of: self).description,
severity: configuration.severity,
location: Location(file: file, byteOffset: offset))
}
if kind == .varInstance && dictionary.enclosedSwiftAttributes.contains(.iboutlet) {
return [makeViolation()]
}
if kind == .functionMethodInstance && dictionary.enclosedSwiftAttributes.contains(.ibaction) {
return [makeViolation()]
}
return []
}
}
private func wrapExample(_ text: String) -> String {
return """
class ViewController: UIViewController {
\(text)
}
"""
}