Convenience method for conversion from BlockId to u64

[jmcph4]

Motivation

Consider the case where we need to convert a BlockId into a u64. Currently, this is achievable by the following:

fn block_id_to_u64(block_id: BlockId) -> Option<u64> {
    if let BlockId::Number(number_or_tag) = block_id {
        number_or_tag.as_number()
    } else {
        None
    }
}

This works but given that the BlockId::as_block_hash method already exists, this seems like a logical inclusion into Alloy itself.

alloy/crates/eips/src/eip1898.rs

Lines 275 to 281 in 060de78

	/// Returns the block hash if it is [BlockId::Hash]
	pub const fn as_block_hash(&self) -> Option<BlockHash> {
	match self {
	Self::Hash(hash) => Some(hash.block_hash),
	Self::Number(_) => None,
	}
	}

Solution

PR Checklist

• Added Tests
• Added Documentation
• Breaking changes

[onbjerg]

makes sense