astx/mjs/compileMatcher/TSTypeAnnotation.mjs

super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring

import compileMatcher from './index.mjs'
export default function compileTSTypeAnnotationMatcher(path, compileOptions) {
  const typeAnnotation = path.get('typeAnnotation')
  if (!typeAnnotation.value) return
  const annotationMatcher = compileMatcher(typeAnnotation, compileOptions)

  if (annotationMatcher.optional) {
    return {
      pattern: path,
      nodeType: 'TSTypeAnnotation',
      optional: true,

      match: (path, matchSoFar) => {
        if (!path.value) return matchSoFar || {}
        return annotationMatcher.match(path.get('typeAnnotation'), matchSoFar)
      },
    }

  }
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