How to use the unionTypeAnnotation function from babel-types

Find comprehensive JavaScript babel-types.unionTypeAnnotation code examples handpicked from public code repositorys.

make-CSSType.js

GitHub: prometheusresearch-archive/react-stylesheet

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};

function buildType(syntax, key) {
  if (syntax.type === 'Sequence') {
    let types = syntax.terms.map(p => buildType(p, key));
    return t.unionTypeAnnotation(types);
  } else if (syntax.type === 'Keyword') {
    return t.stringLiteral(syntax.name);
  } else if (syntax.type === 'Function') {
    return t.identifier('string');

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+ 5 other calls in file

RelayFlowBabelFactories.js

GitHub: dwwoelfel/relay

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function unionTypeAnnotation(types: Array<BabelAST>): BabelAST {
  invariant(
    types.length > 0,
    'RelayFlowBabelFactories: cannot create a union of 0 types',
  );
  return types.length === 1 ? types[0] : t.unionTypeAnnotation(types);
}

module.exports = {
  exactObjectTypeAnnotation,

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+ 5 other calls in file

RelayFlowGenerator.js

GitHub: pranaygp/relay

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  if (!types.length) {
    return exactObjectTypeAnnotation([]);
  }

  return types.length > 1 ? t.unionTypeAnnotation(types) : types[0];
}

function lineComments(...lines: Array<string>) {
  return lines.map(line => ({type: 'CommentLine', value: ' ' + line}));

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