Function should_run_parser 

pub fn should_run_parser(
    parser_name: &str,
    required: &HashSet<String>,
    registry: &ProtocolRegistry,
) -> bool

Check if a specific parser should be run.

Returns true if:

1. The parser’s output is directly needed by the query, OR
2. The parser is on the path to a needed protocol (i.e., some required protocol depends on this one)

Arguments

• parser_name - Name of the parser to check
• required - Set of protocols needed for the query
• registry - Protocol registry containing parser definitions