Function buildErrorMessage

jsonc/parse.ts:342–372

({ type, sourceText, position }: Token)

}

function buildErrorMessage({ type, sourceText, position }: Token): string {
  let token = "";
  switch (type) {
    case "BeginObject":
      token = "{";
      break;
    case "EndObject":
      token = "}";
      break;
    case "BeginArray":
      token = "[";
      break;
    case "EndArray":
      token = "]";
      break;
    case "NameSeparator":
      token = ":";
      break;
    case "ValueSeparator":
      token = ",";
      break;
    case "NullOrTrueOrFalseOrNumber":
    case "String":
      // Truncate the string so that it is within 30 lengths.
      token = 30 < sourceText.length
        ? `${sourceText.slice(0, 30)}...`
        : sourceText;
      break;
  }
  return `Cannot parse JSONC: unexpected token "${token}" in JSONC at position ${position}`;
}