importAnalysisBuild.ts — vite Source File

Source Code

import path from 'node:path'
import MagicString from 'magic-string'
import type { ImportSpecifier } from 'es-module-lexer'
import { init, parse as parseImports } from 'es-module-lexer'
import type { SourceMap } from 'rolldown'
import { viteBuildImportAnalysisPlugin as nativeBuildImportAnalysisPlugin } from 'rolldown/experimental'
import type { RawSourceMap } from '@jridgewell/remapping'
import convertSourceMap from 'convert-source-map'
import { combineSourcemaps, generateCodeFrame, numberToPos } from '../utils'
import { type Plugin, perEnvironmentPlugin } from '../plugin'
import type { ResolvedConfig } from '../config'
import { toOutputFilePathInJS } from '../build'
import { genSourceMapUrl } from '../server/sourcemap'
import type { PartialEnvironment } from '../baseEnvironment'
import { removedPureCssFilesCache } from './css'

type FileDep = {
  url: string
  runtime: boolean
}

type VitePreloadErrorEvent = Event & { payload: Error }

/**
 * A flag for injected helpers. This flag will be set to `false` if the output
 * target is not native es - so that injected helper logic can be conditionally
 * dropped.
 */
export const isModernFlag = `__VITE_IS_MODERN__`
export const preloadMethod = `__vitePreload`
export const preloadMarker = `__VITE_PRELOAD__`

export const preloadHelperId = '\0vite/preload-helper.js'
const preloadMarkerRE = new RegExp(preloadMarker, 'g')

function toRelativePath(filename: string, importer: string) {
  const relPath = path.posix.relative(path.posix.dirname(importer), filename)
  return relPath[0] === '.' ? relPath : `./${relPath}`
}

function findPreloadMarker(str: string, pos: number = 0): number {
  preloadMarkerRE.lastIndex = pos
  const result = preloadMarkerRE.exec(str)
  return result?.index ?? -1
}

/**
 * Helper for preloading CSS and direct imports of async chunks in parallel to
 * the async chunk itself.
 */

function detectScriptRel() {
  const relList =
    typeof document !== 'undefined' && document.createElement('link').relList
  return relList && relList.supports && relList.supports('modulepreload')
    ? 'modulepreload'
    : 'preload'
}

declare const scriptRel: string
// ... (518 more lines)