CHGenerator/WebsiteGenerator/GenerationError.swift
Christoph Hagen 14b935249f First version
2022-08-16 10:39:05 +02:00

52 lines
1.5 KiB
Swift

import Foundation
enum GenerationError: Error {
case missingMarkerInTemplate(String)
case failedToLoadTemplate(String)
case failedToWriteFile(String)
case failedToOpenFile(String)
case failedToDecodeJSON(file: String, error: String)
case invalidLanguageSpecification(String)
case invalidDateInPageMetadata(String)
case failedToEncodeJSON(String)
case missingSectionMetadata(section: String, language: String)
case missingPageMetadata(page: String, language: String)
case missingPage(page: String, language: String)
case missingImage(String)
case conflictingImageSources(output: String, in1: String, in2: String)
case conflictingImageRatios(output: String, in1: String, in2: String)
case failedToGenerateImage(String)
case imageRatioMismatch(String)
}
func wrap<T>(_ error: GenerationError, execute: () throws -> T) rethrows -> T {
do {
return try execute()
} catch let underlyingError {
print(underlyingError)
throw error
}
}
func wrap<T>(_ error: (Error) -> GenerationError, execute: () throws -> T) rethrows -> T {
do {
return try execute()
} catch let underlyingError {
print(underlyingError)
throw error(underlyingError)
}
}
extension Optional {
func unwrap(or error: GenerationError) throws -> Wrapped {
switch self {
case .none:
throw error
case .some(let wrapped):
return wrapped
}
}
}