43 lines
1.8 KiB
Swift
43 lines
1.8 KiB
Swift
public struct DiscouragedObjectLiteralRule: ASTRule, OptInRule, ConfigurationProviderRule {
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public var configuration = ObjectLiteralConfiguration()
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public init() {}
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public static let description = RuleDescription(
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identifier: "discouraged_object_literal",
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name: "Discouraged Object Literal",
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description: "Prefer initializers over object literals.",
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kind: .idiomatic,
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nonTriggeringExamples: [
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"let image = UIImage(named: aVariable)",
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"let image = UIImage(named: \"interpolated \\(variable)\")",
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"let color = UIColor(red: value, green: value, blue: value, alpha: 1)",
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"let image = NSImage(named: aVariable)",
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"let image = NSImage(named: \"interpolated \\(variable)\")",
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"let color = NSColor(red: value, green: value, blue: value, alpha: 1)"
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],
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triggeringExamples: [
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"let image = ↓#imageLiteral(resourceName: \"image.jpg\")",
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"let color = ↓#colorLiteral(red: 0.9607843161, green: 0.7058823705, blue: 0.200000003, alpha: 1)"
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]
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)
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public func validate(file: SwiftLintFile,
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kind: SwiftExpressionKind,
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dictionary: SourceKittenDictionary) -> [StyleViolation] {
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guard let offset = dictionary.offset, kind == .objectLiteral else { return [] }
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if !configuration.imageLiteral && dictionary.name == "imageLiteral" {
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return []
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}
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if !configuration.colorLiteral && dictionary.name == "colorLiteral" {
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return []
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}
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return [StyleViolation(ruleDescription: type(of: self).description,
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severity: configuration.severityConfiguration.severity,
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location: Location(file: file, byteOffset: offset))]
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}
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}
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