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