Function propertySignature

typescript-engine/src/index.ts:35–58

(
  modifiers: readonly modifierKeys[] | readonly ts.Modifier[] | undefined,
  name: string,
  question: boolean,
  type: ts.TypeNode
)

}

export function propertySignature(
  modifiers: readonly modifierKeys[] | readonly ts.Modifier[] | undefined,
  name: string,
  question: boolean,
  type: ts.TypeNode
): ts.PropertySignature {

  var id: Identifier | StringLiteral = identifier(name);

  // Property names can be quoted if they are not valid identifiers.
  // This is things like hyphens, numbers first, etc.
  // TODO: If this regex exists in the typescript compiler, use that instead.
  if(!(/^[A-Za-z_$][A-Za-z0-9_$]*$/.test(name))) {
    id = ts.factory.createStringLiteral(name);
  }


  return ts.factory.createPropertySignature(
    modifiers?.map((m) => modifier(m)),
    id,
    question ? questionToken() : undefined,
    type
  );
}

export function questionToken(): ts.QuestionToken {
  return ts.factory.createToken(ts.SyntaxKind.QuestionToken);