802 lines
26 KiB
JavaScript
802 lines
26 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const { AsyncSeriesBailHook, AsyncSeriesHook, SyncHook } = require("tapable");
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const createInnerContext = require("./createInnerContext");
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const { parseIdentifier } = require("./util/identifier");
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const {
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normalize,
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cachedJoin: join,
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getType,
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PathType,
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} = require("./util/path");
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/** @typedef {import("./ResolverFactory").ResolveOptions} ResolveOptions */
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/** @typedef {Error & { details?: string }} ErrorWithDetail */
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/** @typedef {(err: ErrorWithDetail | null, res?: string | false, req?: ResolveRequest) => void} ResolveCallback */
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/**
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* @typedef {object} PossibleFileSystemError
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* @property {string=} code code
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* @property {number=} errno number
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* @property {string=} path path
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* @property {string=} syscall syscall
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*/
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/**
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* @template T
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* @callback FileSystemCallback
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* @param {PossibleFileSystemError & Error | null} err
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* @param {T=} result
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*/
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/**
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* @typedef {string | Buffer | URL} PathLike
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*/
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/**
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* @typedef {PathLike | number} PathOrFileDescriptor
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*/
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/**
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* @typedef {object} ObjectEncodingOptions
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* @property {BufferEncoding | null | undefined=} encoding encoding
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*/
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/**
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* @typedef {ObjectEncodingOptions | BufferEncoding | undefined | null} EncodingOption
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*/
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: string) => void} StringCallback */
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: Buffer) => void} BufferCallback */
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: (string | Buffer)) => void} StringOrBufferCallback */
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: IStats) => void} StatsCallback */
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: IBigIntStats) => void} BigIntStatsCallback */
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/** @typedef {(err: NodeJS.ErrnoException | null, result?: (IStats | IBigIntStats)) => void} StatsOrBigIntStatsCallback */
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/** @typedef {(err: NodeJS.ErrnoException | Error | null, result?: JsonObject) => void} ReadJsonCallback */
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/**
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* @template T
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* @typedef {object} IStatsBase
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* @property {() => boolean} isFile is file
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* @property {() => boolean} isDirectory is directory
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* @property {() => boolean} isBlockDevice is block device
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* @property {() => boolean} isCharacterDevice is character device
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* @property {() => boolean} isSymbolicLink is symbolic link
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* @property {() => boolean} isFIFO is FIFO
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* @property {() => boolean} isSocket is socket
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* @property {T} dev dev
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* @property {T} ino ino
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* @property {T} mode mode
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* @property {T} nlink nlink
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* @property {T} uid uid
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* @property {T} gid gid
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* @property {T} rdev rdev
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* @property {T} size size
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* @property {T} blksize blksize
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* @property {T} blocks blocks
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* @property {T} atimeMs atime ms
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* @property {T} mtimeMs mtime ms
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* @property {T} ctimeMs ctime ms
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* @property {T} birthtimeMs birthtime ms
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* @property {Date} atime atime
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* @property {Date} mtime mtime
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* @property {Date} ctime ctime
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* @property {Date} birthtime birthtime
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*/
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/**
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* @typedef {IStatsBase<number>} IStats
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*/
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/**
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* @typedef {IStatsBase<bigint> & { atimeNs: bigint, mtimeNs: bigint, ctimeNs: bigint, birthtimeNs: bigint }} IBigIntStats
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*/
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/* eslint-disable jsdoc/require-template */
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/**
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* @template {string | Buffer} [T=string]
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* @typedef {object} Dirent
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* @property {() => boolean} isFile true when is file, otherwise false
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* @property {() => boolean} isDirectory true when is directory, otherwise false
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* @property {() => boolean} isBlockDevice true when is block device, otherwise false
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* @property {() => boolean} isCharacterDevice true when is character device, otherwise false
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* @property {() => boolean} isSymbolicLink true when is symbolic link, otherwise false
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* @property {() => boolean} isFIFO true when is FIFO, otherwise false
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* @property {() => boolean} isSocket true when is socket, otherwise false
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* @property {T} name name
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* @property {string} parentPath path
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* @property {string=} path path
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*/
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/* eslint-enable jsdoc/require-template */
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/**
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* @typedef {object} StatOptions
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* @property {(boolean | undefined)=} bigint need bigint values
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*/
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/**
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* @typedef {object} StatSyncOptions
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* @property {(boolean | undefined)=} bigint need bigint values
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* @property {(boolean | undefined)=} throwIfNoEntry throw if no entry
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*/
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/**
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* @typedef {{
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* (path: PathOrFileDescriptor, options: ({ encoding?: null | undefined, flag?: string | undefined } & import("events").Abortable) | undefined | null, callback: BufferCallback): void;
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* (path: PathOrFileDescriptor, options: ({ encoding: BufferEncoding, flag?: string | undefined } & import("events").Abortable) | BufferEncoding, callback: StringCallback): void;
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* (path: PathOrFileDescriptor, options: (ObjectEncodingOptions & { flag?: string | undefined } & import("events").Abortable) | BufferEncoding | undefined | null, callback: StringOrBufferCallback): void;
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* (path: PathOrFileDescriptor, callback: BufferCallback): void;
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* }} ReadFile
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*/
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/**
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* @typedef {'buffer'| { encoding: 'buffer' }} BufferEncodingOption
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*/
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/**
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* @typedef {{
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* (path: PathOrFileDescriptor, options?: { encoding?: null | undefined, flag?: string | undefined } | null): Buffer;
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* (path: PathOrFileDescriptor, options: { encoding: BufferEncoding, flag?: string | undefined } | BufferEncoding): string;
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* (path: PathOrFileDescriptor, options?: (ObjectEncodingOptions & { flag?: string | undefined }) | BufferEncoding | null): string | Buffer;
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* }} ReadFileSync
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*/
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/**
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* @typedef {{
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* (path: PathLike, options: { encoding: BufferEncoding | null, withFileTypes?: false | undefined, recursive?: boolean | undefined } | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException | null, files?: string[]) => void): void;
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* (path: PathLike, options: { encoding: 'buffer', withFileTypes?: false | undefined, recursive?: boolean | undefined } | 'buffer', callback: (err: NodeJS.ErrnoException | null, files?: Buffer[]) => void): void;
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* (path: PathLike, options: (ObjectEncodingOptions & { withFileTypes?: false | undefined, recursive?: boolean | undefined }) | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException | null, files?: string[] | Buffer[]) => void): void;
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* (path: PathLike, callback: (err: NodeJS.ErrnoException | null, files?: string[]) => void): void;
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* (path: PathLike, options: ObjectEncodingOptions & { withFileTypes: true, recursive?: boolean | undefined }, callback: (err: NodeJS.ErrnoException | null, files?: Dirent<string>[]) => void): void;
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* (path: PathLike, options: { encoding: 'buffer', withFileTypes: true, recursive?: boolean | undefined }, callback: (err: NodeJS.ErrnoException | null, files: Dirent<Buffer>[]) => void): void;
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* }} Readdir
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*/
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/**
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* @typedef {{
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* (path: PathLike, options?: { encoding: BufferEncoding | null, withFileTypes?: false | undefined, recursive?: boolean | undefined; } | BufferEncoding | null): string[];
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* (path: PathLike, options: { encoding: 'buffer', withFileTypes?: false | undefined, recursive?: boolean | undefined } | 'buffer'): Buffer[];
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* (path: PathLike, options?: (ObjectEncodingOptions & { withFileTypes?: false | undefined, recursive?: boolean | undefined }) | BufferEncoding | null): string[] | Buffer[];
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* (path: PathLike, options: ObjectEncodingOptions & { withFileTypes: true, recursive?: boolean | undefined }): Dirent[];
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* (path: PathLike, options: { encoding: "buffer", withFileTypes: true, recursive?: boolean | undefined }): Dirent<Buffer>[];
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* }} ReaddirSync
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*/
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/**
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* @typedef {(pathOrFileDescription: PathOrFileDescriptor, callback: ReadJsonCallback) => void} ReadJson
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*/
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/**
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* @typedef {(pathOrFileDescription: PathOrFileDescriptor) => JsonObject} ReadJsonSync
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*/
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/**
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* @typedef {{
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* (path: PathLike, options: EncodingOption, callback: StringCallback): void;
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* (path: PathLike, options: BufferEncodingOption, callback: BufferCallback): void;
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* (path: PathLike, options: EncodingOption, callback: StringOrBufferCallback): void;
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* (path: PathLike, callback: StringCallback): void;
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* }} Readlink
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*/
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/**
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* @typedef {{
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* (path: PathLike, options?: EncodingOption): string;
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* (path: PathLike, options: BufferEncodingOption): Buffer;
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* (path: PathLike, options?: EncodingOption): string | Buffer;
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* }} ReadlinkSync
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*/
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/**
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* @typedef {{
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* (path: PathLike, callback: StatsCallback): void;
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* (path: PathLike, options: (StatOptions & { bigint?: false | undefined }) | undefined, callback: StatsCallback): void;
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* (path: PathLike, options: StatOptions & { bigint: true }, callback: BigIntStatsCallback): void;
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* (path: PathLike, options: StatOptions | undefined, callback: StatsOrBigIntStatsCallback): void;
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* }} LStat
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*/
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/**
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* @typedef {{
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* (path: PathLike, options?: undefined): IStats;
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* (path: PathLike, options?: StatSyncOptions & { bigint?: false | undefined, throwIfNoEntry: false }): IStats | undefined;
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* (path: PathLike, options: StatSyncOptions & { bigint: true, throwIfNoEntry: false }): IBigIntStats | undefined;
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* (path: PathLike, options?: StatSyncOptions & { bigint?: false | undefined }): IStats;
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* (path: PathLike, options: StatSyncOptions & { bigint: true }): IBigIntStats;
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* (path: PathLike, options: StatSyncOptions & { bigint: boolean, throwIfNoEntry?: false | undefined }): IStats | IBigIntStats;
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* (path: PathLike, options?: StatSyncOptions): IStats | IBigIntStats | undefined;
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* }} LStatSync
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*/
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/**
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* @typedef {{
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* (path: PathLike, callback: StatsCallback): void;
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* (path: PathLike, options: (StatOptions & { bigint?: false | undefined }) | undefined, callback: StatsCallback): void;
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* (path: PathLike, options: StatOptions & { bigint: true }, callback: BigIntStatsCallback): void;
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* (path: PathLike, options: StatOptions | undefined, callback: StatsOrBigIntStatsCallback): void;
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* }} Stat
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*/
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/**
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* @typedef {{
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* (path: PathLike, options?: undefined): IStats;
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* (path: PathLike, options?: StatSyncOptions & { bigint?: false | undefined, throwIfNoEntry: false }): IStats | undefined;
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* (path: PathLike, options: StatSyncOptions & { bigint: true, throwIfNoEntry: false }): IBigIntStats | undefined;
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* (path: PathLike, options?: StatSyncOptions & { bigint?: false | undefined }): IStats;
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* (path: PathLike, options: StatSyncOptions & { bigint: true }): IBigIntStats;
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* (path: PathLike, options: StatSyncOptions & { bigint: boolean, throwIfNoEntry?: false | undefined }): IStats | IBigIntStats;
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* (path: PathLike, options?: StatSyncOptions): IStats | IBigIntStats | undefined;
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* }} StatSync
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*/
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/**
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* @typedef {{
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* (path: PathLike, options: EncodingOption, callback: StringCallback): void;
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* (path: PathLike, options: BufferEncodingOption, callback: BufferCallback): void;
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* (path: PathLike, options: EncodingOption, callback: StringOrBufferCallback): void;
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* (path: PathLike, callback: StringCallback): void;
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* }} RealPath
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*/
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/**
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* @typedef {{
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* (path: PathLike, options?: EncodingOption): string;
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* (path: PathLike, options: BufferEncodingOption): Buffer;
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* (path: PathLike, options?: EncodingOption): string | Buffer;
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* }} RealPathSync
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*/
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/**
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* @typedef {object} FileSystem
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* @property {ReadFile} readFile read file method
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* @property {Readdir} readdir readdir method
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* @property {ReadJson=} readJson read json method
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* @property {Readlink} readlink read link method
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* @property {LStat=} lstat lstat method
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* @property {Stat} stat stat method
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* @property {RealPath=} realpath realpath method
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*/
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/**
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* @typedef {object} SyncFileSystem
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* @property {ReadFileSync} readFileSync read file sync method
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* @property {ReaddirSync} readdirSync read dir sync method
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* @property {ReadJsonSync=} readJsonSync read json sync method
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* @property {ReadlinkSync} readlinkSync read link sync method
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* @property {LStatSync=} lstatSync lstat sync method
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* @property {StatSync} statSync stat sync method
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* @property {RealPathSync=} realpathSync real path sync method
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*/
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/**
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* @typedef {object} ParsedIdentifier
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* @property {string} request request
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* @property {string} query query
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* @property {string} fragment fragment
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* @property {boolean} directory is directory
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* @property {boolean} module is module
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* @property {boolean} file is file
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* @property {boolean} internal is internal
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*/
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/** @typedef {string | number | boolean | null} JsonPrimitive */
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/** @typedef {JsonValue[]} JsonArray */
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/** @typedef {JsonPrimitive | JsonObject | JsonArray} JsonValue */
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/** @typedef {{[Key in string]: JsonValue} & {[Key in string]?: JsonValue | undefined}} JsonObject */
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// eslint-disable-next-line jsdoc/require-property
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/** @typedef {object} Context */
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/**
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* @typedef {object} BaseResolveRequest
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* @property {string | false} path path
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* @property {Context=} context content
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* @property {string=} descriptionFilePath description file path
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* @property {string=} descriptionFileRoot description file root
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* @property {JsonObject=} descriptionFileData description file data
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* @property {string=} relativePath relative path
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* @property {boolean=} ignoreSymlinks true when need to ignore symlinks, otherwise false
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* @property {boolean=} fullySpecified true when full specified, otherwise false
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* @property {string=} __innerRequest inner request for internal usage
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* @property {string=} __innerRequest_request inner request for internal usage
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* @property {string=} __innerRequest_relativePath inner relative path for internal usage
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*/
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/** @typedef {BaseResolveRequest & Partial<ParsedIdentifier>} ResolveRequest */
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/**
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* String with special formatting
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* @typedef {string} StackEntry
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*/
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/**
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* @template T
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* @typedef {{ add: (item: T) => void }} WriteOnlySet
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*/
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/** @typedef {(request: ResolveRequest) => void} ResolveContextYield */
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/**
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* Resolve context
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* @typedef {object} ResolveContext
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* @property {WriteOnlySet<string>=} contextDependencies directories that was found on file system
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* @property {WriteOnlySet<string>=} fileDependencies files that was found on file system
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* @property {WriteOnlySet<string>=} missingDependencies dependencies that was not found on file system
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* @property {Set<StackEntry>=} stack set of hooks' calls. For instance, `resolve → parsedResolve → describedResolve`,
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* @property {((str: string) => void)=} log log function
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* @property {ResolveContextYield=} yield yield result, if provided plugins can return several results
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*/
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/** @typedef {AsyncSeriesBailHook<[ResolveRequest, ResolveContext], ResolveRequest | null>} ResolveStepHook */
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/**
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* @typedef {object} KnownHooks
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* @property {SyncHook<[ResolveStepHook, ResolveRequest], void>} resolveStep resolve step hook
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* @property {SyncHook<[ResolveRequest, Error]>} noResolve no resolve hook
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* @property {ResolveStepHook} resolve resolve hook
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* @property {AsyncSeriesHook<[ResolveRequest, ResolveContext]>} result result hook
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*/
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/**
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* @typedef {{[key: string]: ResolveStepHook}} EnsuredHooks
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*/
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/**
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* @param {string} str input string
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* @returns {string} in camel case
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*/
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function toCamelCase(str) {
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return str.replace(/-([a-z])/g, (str) => str.slice(1).toUpperCase());
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}
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class Resolver {
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/**
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* @param {ResolveStepHook} hook hook
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* @param {ResolveRequest} request request
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* @returns {StackEntry} stack entry
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*/
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static createStackEntry(hook, request) {
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return `${hook.name}: (${request.path}) ${request.request || ""}${
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request.query || ""
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}${request.fragment || ""}${
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request.directory ? " directory" : ""
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}${request.module ? " module" : ""}`;
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}
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/**
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* @param {FileSystem} fileSystem a filesystem
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* @param {ResolveOptions} options options
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*/
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constructor(fileSystem, options) {
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this.fileSystem = fileSystem;
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this.options = options;
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/** @type {KnownHooks} */
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this.hooks = {
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resolveStep: new SyncHook(["hook", "request"], "resolveStep"),
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noResolve: new SyncHook(["request", "error"], "noResolve"),
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resolve: new AsyncSeriesBailHook(
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["request", "resolveContext"],
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"resolve",
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),
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result: new AsyncSeriesHook(["result", "resolveContext"], "result"),
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};
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}
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/**
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* @param {string | ResolveStepHook} name hook name or hook itself
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* @returns {ResolveStepHook} the hook
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*/
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ensureHook(name) {
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if (typeof name !== "string") {
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return name;
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}
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name = toCamelCase(name);
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if (name.startsWith("before")) {
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return /** @type {ResolveStepHook} */ (
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this.ensureHook(name[6].toLowerCase() + name.slice(7)).withOptions({
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stage: -10,
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})
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);
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}
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if (name.startsWith("after")) {
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return /** @type {ResolveStepHook} */ (
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this.ensureHook(name[5].toLowerCase() + name.slice(6)).withOptions({
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stage: 10,
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})
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);
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}
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/** @type {ResolveStepHook} */
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const hook = /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
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if (!hook) {
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/** @type {KnownHooks & EnsuredHooks} */
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(this.hooks)[name] = new AsyncSeriesBailHook(
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["request", "resolveContext"],
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name,
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);
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return /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
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}
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return hook;
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}
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/**
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* @param {string | ResolveStepHook} name hook name or hook itself
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* @returns {ResolveStepHook} the hook
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*/
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getHook(name) {
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if (typeof name !== "string") {
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return name;
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}
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name = toCamelCase(name);
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if (name.startsWith("before")) {
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return /** @type {ResolveStepHook} */ (
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this.getHook(name[6].toLowerCase() + name.slice(7)).withOptions({
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stage: -10,
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})
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);
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}
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if (name.startsWith("after")) {
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return /** @type {ResolveStepHook} */ (
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this.getHook(name[5].toLowerCase() + name.slice(6)).withOptions({
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stage: 10,
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})
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);
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}
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/** @type {ResolveStepHook} */
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const hook = /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
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if (!hook) {
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throw new Error(`Hook ${name} doesn't exist`);
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}
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return hook;
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}
|
|
|
|
/**
|
|
* @param {object} context context information object
|
|
* @param {string} path context path
|
|
* @param {string} request request string
|
|
* @returns {string | false} result
|
|
*/
|
|
resolveSync(context, path, request) {
|
|
/** @type {Error | null | undefined} */
|
|
let err;
|
|
/** @type {string | false | undefined} */
|
|
let result;
|
|
let sync = false;
|
|
this.resolve(context, path, request, {}, (_err, r) => {
|
|
err = _err;
|
|
result = r;
|
|
sync = true;
|
|
});
|
|
if (!sync) {
|
|
throw new Error(
|
|
"Cannot 'resolveSync' because the fileSystem is not sync. Use 'resolve'!",
|
|
);
|
|
}
|
|
if (err) throw err;
|
|
if (result === undefined) throw new Error("No result");
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* @param {object} context context information object
|
|
* @param {string} path context path
|
|
* @param {string} request request string
|
|
* @param {ResolveContext} resolveContext resolve context
|
|
* @param {ResolveCallback} callback callback function
|
|
* @returns {void}
|
|
*/
|
|
resolve(context, path, request, resolveContext, callback) {
|
|
if (!context || typeof context !== "object") {
|
|
return callback(new Error("context argument is not an object"));
|
|
}
|
|
if (typeof path !== "string") {
|
|
return callback(new Error("path argument is not a string"));
|
|
}
|
|
if (typeof request !== "string") {
|
|
return callback(new Error("request argument is not a string"));
|
|
}
|
|
if (!resolveContext) {
|
|
return callback(new Error("resolveContext argument is not set"));
|
|
}
|
|
|
|
/** @type {ResolveRequest} */
|
|
const obj = {
|
|
context,
|
|
path,
|
|
request,
|
|
};
|
|
|
|
/** @type {ResolveContextYield | undefined} */
|
|
let yield_;
|
|
let yieldCalled = false;
|
|
/** @type {ResolveContextYield | undefined} */
|
|
let finishYield;
|
|
if (typeof resolveContext.yield === "function") {
|
|
const old = resolveContext.yield;
|
|
/**
|
|
* @param {ResolveRequest} obj object
|
|
*/
|
|
yield_ = (obj) => {
|
|
old(obj);
|
|
yieldCalled = true;
|
|
};
|
|
/**
|
|
* @param {ResolveRequest} result result
|
|
* @returns {void}
|
|
*/
|
|
finishYield = (result) => {
|
|
if (result) {
|
|
/** @type {ResolveContextYield} */ (yield_)(result);
|
|
}
|
|
callback(null);
|
|
};
|
|
}
|
|
|
|
const message = `resolve '${request}' in '${path}'`;
|
|
|
|
/**
|
|
* @param {ResolveRequest} result result
|
|
* @returns {void}
|
|
*/
|
|
const finishResolved = (result) =>
|
|
callback(
|
|
null,
|
|
result.path === false
|
|
? false
|
|
: `${result.path.replace(/#/g, "\0#")}${
|
|
result.query ? result.query.replace(/#/g, "\0#") : ""
|
|
}${result.fragment || ""}`,
|
|
result,
|
|
);
|
|
|
|
/**
|
|
* @param {string[]} log logs
|
|
* @returns {void}
|
|
*/
|
|
const finishWithoutResolve = (log) => {
|
|
/**
|
|
* @type {ErrorWithDetail}
|
|
*/
|
|
const error = new Error(`Can't ${message}`);
|
|
error.details = log.join("\n");
|
|
this.hooks.noResolve.call(obj, error);
|
|
return callback(error);
|
|
};
|
|
|
|
if (resolveContext.log) {
|
|
// We need log anyway to capture it in case of an error
|
|
const parentLog = resolveContext.log;
|
|
/** @type {string[]} */
|
|
const log = [];
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: (msg) => {
|
|
parentLog(msg);
|
|
log.push(msg);
|
|
},
|
|
yield: yield_,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: resolveContext.stack,
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result),
|
|
);
|
|
}
|
|
|
|
if (result) return finishResolved(result);
|
|
|
|
return finishWithoutResolve(log);
|
|
},
|
|
);
|
|
}
|
|
// Try to resolve assuming there is no error
|
|
// We don't log stuff in this case
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: undefined,
|
|
yield: yield_,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: resolveContext.stack,
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result),
|
|
);
|
|
}
|
|
|
|
if (result) return finishResolved(result);
|
|
|
|
// log is missing for the error details
|
|
// so we redo the resolving for the log info
|
|
// this is more expensive to the success case
|
|
// is assumed by default
|
|
/** @type {string[]} */
|
|
const log = [];
|
|
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: (msg) => log.push(msg),
|
|
yield: yield_,
|
|
stack: resolveContext.stack,
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
// In a case that there is a race condition and yield will be called
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result),
|
|
);
|
|
}
|
|
|
|
return finishWithoutResolve(log);
|
|
},
|
|
);
|
|
},
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {ResolveStepHook} hook hook
|
|
* @param {ResolveRequest} request request
|
|
* @param {null|string} message string
|
|
* @param {ResolveContext} resolveContext resolver context
|
|
* @param {(err?: null|Error, result?: ResolveRequest) => void} callback callback
|
|
* @returns {void}
|
|
*/
|
|
doResolve(hook, request, message, resolveContext, callback) {
|
|
const stackEntry = Resolver.createStackEntry(hook, request);
|
|
|
|
/** @type {Set<string> | undefined} */
|
|
let newStack;
|
|
if (resolveContext.stack) {
|
|
newStack = new Set(resolveContext.stack);
|
|
if (resolveContext.stack.has(stackEntry)) {
|
|
/**
|
|
* Prevent recursion
|
|
* @type {Error & {recursion?: boolean}}
|
|
*/
|
|
const recursionError = new Error(
|
|
`Recursion in resolving\nStack:\n ${[...newStack].join("\n ")}`,
|
|
);
|
|
recursionError.recursion = true;
|
|
if (resolveContext.log) {
|
|
resolveContext.log("abort resolving because of recursion");
|
|
}
|
|
return callback(recursionError);
|
|
}
|
|
newStack.add(stackEntry);
|
|
} else {
|
|
// creating a set with new Set([item])
|
|
// allocates a new array that has to be garbage collected
|
|
// this is an EXTREMELY hot path, so let's avoid it
|
|
newStack = new Set();
|
|
newStack.add(stackEntry);
|
|
}
|
|
this.hooks.resolveStep.call(hook, request);
|
|
|
|
if (hook.isUsed()) {
|
|
const innerContext = createInnerContext(
|
|
{
|
|
log: resolveContext.log,
|
|
yield: resolveContext.yield,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: newStack,
|
|
},
|
|
message,
|
|
);
|
|
return hook.callAsync(request, innerContext, (err, result) => {
|
|
if (err) return callback(err);
|
|
if (result) return callback(null, result);
|
|
callback();
|
|
});
|
|
}
|
|
callback();
|
|
}
|
|
|
|
/**
|
|
* @param {string} identifier identifier
|
|
* @returns {ParsedIdentifier} parsed identifier
|
|
*/
|
|
parse(identifier) {
|
|
const part = {
|
|
request: "",
|
|
query: "",
|
|
fragment: "",
|
|
module: false,
|
|
directory: false,
|
|
file: false,
|
|
internal: false,
|
|
};
|
|
|
|
const parsedIdentifier = parseIdentifier(identifier);
|
|
|
|
if (!parsedIdentifier) return part;
|
|
|
|
[part.request, part.query, part.fragment] = parsedIdentifier;
|
|
|
|
if (part.request.length > 0) {
|
|
part.internal = this.isPrivate(identifier);
|
|
part.module = this.isModule(part.request);
|
|
part.directory = this.isDirectory(part.request);
|
|
if (part.directory) {
|
|
part.request = part.request.slice(0, -1);
|
|
}
|
|
}
|
|
|
|
return part;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {boolean} true, if the path is a module
|
|
*/
|
|
isModule(path) {
|
|
return getType(path) === PathType.Normal;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {boolean} true, if the path is private
|
|
*/
|
|
isPrivate(path) {
|
|
return getType(path) === PathType.Internal;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path a path
|
|
* @returns {boolean} true, if the path is a directory path
|
|
*/
|
|
isDirectory(path) {
|
|
return path.endsWith("/");
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @param {string} request request
|
|
* @returns {string} joined path
|
|
*/
|
|
join(path, request) {
|
|
return join(path, request);
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {string} normalized path
|
|
*/
|
|
normalize(path) {
|
|
return normalize(path);
|
|
}
|
|
}
|
|
|
|
module.exports = Resolver;
|