Struct ByteRange 

pub struct ByteRange { /* private fields */ }

Represents a byte range in a PDF document for signature calculation

ByteRange is used to specify which parts of the PDF are covered by the signature. It typically consists of two ranges:

• From document start to before the /Contents value
• From after the /Contents value to document end

Implementations

impl ByteRange

pub fn new(ranges: Vec<(u64, u64)>) -> Self

Creates a new ByteRange from a list of (offset, length) pairs

pub fn from_array(values: &[i64]) -> Result<Self, String>

Creates a ByteRange from a PDF array [offset1 len1 offset2 len2 …]

pub fn ranges(&self) -> &[(u64, u64)]

Returns the ranges as (offset, length) pairs

pub fn len(&self) -> usize

Returns the number of range pairs

pub fn is_empty(&self) -> bool

Returns true if there are no ranges

pub fn total_bytes(&self) -> u64

Calculates the total number of bytes covered by all ranges

pub fn validate(&self) -> Result<(), String>

Validates that the ByteRange covers the expected document structure

A valid signature ByteRange should:

• Have exactly 2 ranges (before and after /Contents)
• First range starts at 0
• Ranges don’t overlap

Trait Implementations

impl Clone for ByteRange

fn clone(&self) -> ByteRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ByteRange

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

Formats the value using the given formatter.

impl Display for ByteRange

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

Formats the value using the given formatter.

impl PartialEq for ByteRange

fn eq(&self, other: &ByteRange) -> 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 Eq for ByteRange

impl StructuralPartialEq for ByteRange