Function getIdentifier

book/tiny-ts-parser.ts:525–528

(node: p.TSESTree.Expression | p.TSESTree.PrivateIdentifier | p.TSESTree.TSQualifiedName)

// Helper functions to get properties of estree nodes

function getIdentifier(node: p.TSESTree.Expression | p.TSESTree.PrivateIdentifier | p.TSESTree.TSQualifiedName) {
  if (node.type !== "Identifier") error("identifier expected", node);
  return node.name;
}

function getLiteralString(node: p.TSESTree.Expression) {
  if (node.type !== "Literal" || typeof node.value !== "string") error("", node);