49 lines
1.5 KiB
TypeScript
49 lines
1.5 KiB
TypeScript
export type ConvertErrorCode =
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| 'malformed-directive'
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| 'malformed-pipe-table'
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| 'not-an-adf-document'
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| 'unknown-directive-name'
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| 'unmappable-html'
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| 'unmappable-image'
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| 'unspellable-adjacent-lists'
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| 'unspellable-character'
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| 'unspellable-line-start'
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| 'unspellable-link-destination'
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| 'unspellable-link-title'
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| 'unspellable-whitespace'
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| 'unsupported-document-version'
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| 'unsupported-nesting-depth'
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| 'unsupported-node-shape'
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export type ConvertErrorPath = readonly (number | string)[]
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export type SourcePosition = { line: number; offset: number }
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export type ConvertFault = {
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code: ConvertErrorCode
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message: string
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}
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export type ConvertError = ConvertFault & { path: ConvertErrorPath; position?: SourcePosition }
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export type ParseError = ConvertError & { position: SourcePosition }
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export type Result<T, E extends ConvertError = ConvertError> = { error: E; ok: false } | { ok: true; value: T }
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export function failure<T>(code: ConvertErrorCode, message: string, path: ConvertErrorPath): Result<T> {
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return { error: { code, message, path }, ok: false }
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}
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export function faulted<T>(fault: ConvertFault, path: ConvertErrorPath): Result<T> {
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return failure(fault.code, fault.message, path)
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}
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export function positioned<T>(result: Result<T>, position: SourcePosition): Result<T, ParseError> {
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if (result.ok) return result
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return { error: { ...result.error, position: result.error.position ?? position }, ok: false }
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}
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export function success<T>(value: T): { ok: true; value: T } {
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return { ok: true, value }
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}
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