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use crate::byte_readable::ByteReadable; use std::fs; use std::io::Error; pub struct RawBytesPointer { pub next_byte: usize, } impl RawBytesPointer { pub fn new() -> RawBytesPointer { RawBytesPointer { next_byte: 0 } } } impl Default for RawBytesPointer { fn default() -> Self { Self::new() } } pub struct RawBytes { data: Vec<u8>, } impl RawBytes { pub fn from_file(path: &str) -> Result<RawBytes, Error> { let data = fs::read(path)?; Ok(RawBytes { data }) } pub fn from_bytes(bytes: Vec<u8>) -> RawBytes { RawBytes { data: bytes } } } impl ByteReadable<RawBytesPointer> for RawBytes { fn read(&self, ptr: &mut RawBytesPointer) -> Option<u8> { let result = self.data.get(ptr.next_byte).cloned(); ptr.next_byte += 1; result } fn has_next(&self, ptr: &RawBytesPointer) -> bool { ptr.next_byte < self.data.len() } }