Function parse_array

src/parse_to_ast.rs:399–431

(context: &mut Context<'a>)

}

fn parse_array<'a>(context: &mut Context<'a>) -> Result<Array<'a>, ParseError> {
  debug_assert!(context.token() == Some(Token::OpenBracket));
  let mut elements = Vec::new();

  context.start_range();
  context.scan()?;

  loop {
    match context.token() {
      Some(Token::CloseBracket) => break,
      None => return Err(context.create_error_for_current_range(ParseErrorKind::UnterminatedArray)),
      _ => match parse_value(context)? {
        Some(value) => elements.push(value),
        None => return Err(context.create_error_for_current_range(ParseErrorKind::UnterminatedArray)),
      },
    }

    // skip the comma
    if let Some(Token::Comma) = context.scan()? {
      let comma_range = context.create_range_from_last_token();
      if let Some(Token::CloseBracket) = context.scan()?
        && !context.allow_trailing_commas
      {
        return Err(context.create_error_for_range(comma_range, ParseErrorKind::TrailingCommasNotAllowed));
      }
    }
  }

  Ok(Array {
    range: context.end_range(),
    elements,
  })
}

// factory functions