All files / compiler-sfc/src/script utils.ts

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import type {
  CallExpression,
  Expression,
  Identifier,
  ImportDefaultSpecifier,
  ImportNamespaceSpecifier,
  ImportSpecifier,
  Node,
  StringLiteral,
  TSMethodSignature,
  TSPropertySignature,
} from '@babel/types'
import path from 'path'
 
export const UNKNOWN_TYPE = 'Unknown'
 
export function resolveObjectKey(
  node: Node,
  computed: boolean,
): string | undefined {
  switch (node.type) {
    case 'StringLiteral':
    case 'NumericLiteral':
      return String(node.value)
    case 'Identifier':
      if (!computed) return node.name
  }
  return undefined
}
 
export function concatStrings(
  strs: Array<string | null | undefined | false>,
): string {
  return strs.filter((s): s is string => !!s).join(', ')
}
 
export function isLiteralNode(node: Node): boolean {
  return node.type.endsWith('Literal')
}
 
export function isCallOf(
  node: Node | null | undefined,
  test: string | ((id: string) => boolean) | null | undefined,
): node is CallExpression {
  return !!(
    node &&
    test &&
    node.type === 'CallExpression' &&
    node.callee.type === 'Identifier' &&
    (typeof test === 'string'
      ? node.callee.name === test
      : test(node.callee.name))
  )
}
 
export function toRuntimeTypeString(types: string[]): string {
  return types.length > 1 ? `[${types.join(', ')}]` : types[0]
}
 
export function getImportedName(
  specifier:
    | ImportSpecifier
    | ImportDefaultSpecifier
    | ImportNamespaceSpecifier,
): string {
  if (specifier.type === 'ImportSpecifier')
    return specifier.imported.type === 'Identifier'
      ? specifier.imported.name
      : specifier.imported.value
  else if (specifier.type === 'ImportNamespaceSpecifier') return '*'
  return 'default'
}
 
export function getId(node: Identifier | StringLiteral): string
export function getId(node: Expression): string | null
export function getId(node: Expression) {
  return node.type === 'Identifier'
    ? node.name
    : node.type === 'StringLiteral'
      ? node.value
      : null
}
 
export function getStringLiteralKey(
  node: TSPropertySignature | TSMethodSignature,
): string | null {
  return node.computed
    ? node.key.type === 'TemplateLiteral' && !node.key.expressions.length
      ? node.key.quasis.map(q => q.value.cooked).join('')
      : null
    : node.key.type === 'Identifier'
      ? node.key.name
      : node.key.type === 'StringLiteral'
        ? node.key.value
        : node.key.type === 'NumericLiteral'
          ? String(node.key.value)
          : null
}
 
const identity = (str: string) => str
const fileNameLowerCaseRegExp = /[^\u0130\u0131\u00DFa-z0-9\\/:\-_\. ]+/g
const toLowerCase = (str: string) => str.toLowerCase()
 
function toFileNameLowerCase(x: string) {
  return fileNameLowerCaseRegExp.test(x)
    ? x.replace(fileNameLowerCaseRegExp, toLowerCase)
    : x
}
 
/**
 * We need `getCanonicalFileName` when creating ts module resolution cache,
 * but TS does not expose it directly. This implementation is replicated from
 * the TS source code.
 */
export function createGetCanonicalFileName(
  useCaseSensitiveFileNames: boolean,
): (str: string) => string {
  return useCaseSensitiveFileNames ? identity : toFileNameLowerCase
}
 
// in the browser build, the polyfill doesn't expose posix, but defaults to
// posix behavior.
const normalize = (path.posix || path).normalize
const windowsSlashRE = /\\/g
export function normalizePath(p: string): string {
  return normalize(p.replace(windowsSlashRE, '/'))
}
 
export const joinPaths: (...paths: string[]) => string = (path.posix || path)
  .join
 
/**
 * key may contain symbols
 * e.g. onUpdate:modelValue -> "onUpdate:modelValue"
 */
export const propNameEscapeSymbolsRE: RegExp =
  /[ !"#$%&'()*+,./:;<=>?@[\\\]^`{|}~\-]/
 
export function getEscapedPropName(key: string): string {
  return propNameEscapeSymbolsRE.test(key) ? JSON.stringify(key) : key
}
 
export const isJS = (...langs: (string | null | undefined)[]): boolean =>
  langs.some(lang => lang === 'js' || lang === 'jsx')
export const isTS = (...langs: (string | null | undefined)[]): boolean =>
  langs.some(lang => lang === 'ts' || lang === 'tsx')