62 lines
1.2 KiB
JavaScript
62 lines
1.2 KiB
JavaScript
const os = require('bare-os')
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module.exports = class FileError extends Error {
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constructor(msg, opts = {}) {
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const {
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code,
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operation = null,
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path = null,
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destination = null,
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fd = -1
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} = opts
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if (operation !== null) msg += describe(operation, opts)
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super(`${code}: ${msg}`)
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this.code = code
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if (operation !== null) this.operation = operation
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if (path !== null) this.path = path
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if (destination !== null) this.destination = destination
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if (fd !== -1) this.fd = fd
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}
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get name() {
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return 'FileError'
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}
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// For Node.js compatibility
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get errno() {
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return os.constants.errnos[this.code]
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}
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// For Node.js compatibility
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get syscall() {
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return this.operation
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}
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// For Node.js compatibility
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get dest() {
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return this.destination
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}
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}
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function describe(operation, opts) {
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const { path = null, destination = null, fd = -1 } = opts
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let result = `, ${operation}`
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if (path !== null) {
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result += ` ${JSON.stringify(path)}`
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if (destination !== null) {
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result += ` -> ${JSON.stringify(destination)}`
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}
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} else if (fd !== -1) {
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result += ` ${fd}`
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}
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return result
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}
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