31 lines
1.3 KiB
Swift
31 lines
1.3 KiB
Swift
import Foundation
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import SourceKittenFramework
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public struct DiscouragedOptionalBooleanRule: OptInRule, ConfigurationProviderRule, AutomaticTestableRule {
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public var configuration = SeverityConfiguration(.warning)
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public init() {}
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public static let description = RuleDescription(
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identifier: "discouraged_optional_boolean",
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name: "Discouraged Optional Boolean",
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description: "Prefer non-optional booleans over optional booleans.",
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kind: .idiomatic,
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nonTriggeringExamples: DiscouragedOptionalBooleanRuleExamples.nonTriggeringExamples,
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triggeringExamples: DiscouragedOptionalBooleanRuleExamples.triggeringExamples
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)
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public func validate(file: SwiftLintFile) -> [StyleViolation] {
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let booleanPattern = "Bool\\?"
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let optionalPattern = "Optional\\.some\\(\\s*(true|false)\\s*\\)"
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let pattern = "(" + [booleanPattern, optionalPattern].joined(separator: "|") + ")"
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let excludingKinds = SyntaxKind.commentAndStringKinds
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return file.match(pattern: pattern, excludingSyntaxKinds: excludingKinds).map {
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StyleViolation(ruleDescription: type(of: self).description,
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severity: configuration.severity,
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location: Location(file: file, characterOffset: $0.location))
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}
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}
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}
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