Struct TypeHash 

pub struct TypeHash { /* private fields */ }

A parsed ROS 2 type hash in the RIHS01 scheme (REP-2011).

The string form is RIHS01_ followed by 64 lowercase hex digits, the version prefix plus a SHA-256 digest of the type’s description.

Examples

use pamoja_ros2::typehash::TypeHash;

// The published hash of std_msgs/msg/String round-trips through parse and display.
let text = "RIHS01_df668c740482bbd48fb39d76a70dfd4bd59db1288021743503259e948f6b1a18";
let hash = TypeHash::parse(text).unwrap();
assert_eq!(hash.to_string(), text);

Implementations

impl TypeHash

pub fn parse(text: &str) -> Option<Self>

Parses a RIHS01 hash string.

Arguments

• text - the candidate hash, expected as RIHS01_ plus 64 lowercase hex digits.

Returns

Some(hash) if text is a well-formed RIHS01 string, otherwise None.

pub fn digest(&self) -> [u8; 32]

Returns the raw 32-byte digest.

Returns

The SHA-256 digest carried by the hash.

Trait Implementations

impl Clone for TypeHash

fn clone(&self) -> TypeHash

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TypeHash

impl Debug for TypeHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for TypeHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for TypeHash

impl PartialEq for TypeHash

fn eq(&self, other: &TypeHash) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TypeHash