SwiftLint/Source/SwiftLintFramework/Rules/ClosingBraceRule.swift

81 lines
2.5 KiB
Swift

//
// ClosingBraceRule.swift
// SwiftLint
//
// Created by Yasuhiro Inami on 2015-12-19.
// Copyright © 2015 Yasuhiro Inami. All rights reserved.
//
import Foundation
import SourceKittenFramework
private let whitespaceAndNewlineCharacterSet = NSCharacterSet.whitespaceAndNewlineCharacterSet()
extension File {
private func violatingClosingBraceRanges() -> [NSRange] {
return matchPattern(
"(\\}\\s+\\))",
excludingSyntaxKinds: SyntaxKind.commentAndStringKinds()
)
}
}
public struct ClosingBraceRule: CorrectableRule, ConfigProviderRule {
public var config = SeverityConfig(.Warning)
public init() {}
public static let description = RuleDescription(
identifier: "closing_brace",
name: "Closing Brace Spacing",
description: "Closing brace with closing parenthesis " +
"should not have any whitespaces in the middle.",
nonTriggeringExamples: [
Trigger("[].map({ })")
],
triggeringExamples: [
Trigger("[].map({ ↓} )")
],
corrections: [
"[].map({ } )\n": "[].map({ })\n"
]
)
public func validateFile(file: File) -> [StyleViolation] {
return file.violatingClosingBraceRanges().map {
StyleViolation(ruleDescription: self.dynamicType.description,
severity: config.severity,
location: Location(file: file, characterOffset: $0.location))
}
}
public func correctFile(file: File) -> [Correction] {
let violatingRanges = file.ruleEnabledViolatingRanges(
file.violatingClosingBraceRanges(),
forRule: self
)
return writeToFile(file, violatingRanges: violatingRanges)
}
private func writeToFile(file: File, violatingRanges: [NSRange]) -> [Correction] {
var correctedContents = file.contents
var adjustedLocations = [Int]()
for violatingRange in violatingRanges.reverse() {
if let indexRange = correctedContents.nsrangeToIndexRange(violatingRange) {
correctedContents = correctedContents
.stringByReplacingCharactersInRange(indexRange, withString: "})")
adjustedLocations.insert(violatingRange.location, atIndex: 0)
}
}
file.write(correctedContents)
return adjustedLocations.map {
Correction(ruleDescription: self.dynamicType.description,
location: Location(file: file, characterOffset: $0))
}
}
}