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Implement most of the boring methods

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Bradlee Speice
2019-05-06 16:56:55 -04:00
parent 2b6e62dca1
commit 5d956efcde
2 changed files with 62 additions and 96 deletions
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1
Cargo.toml
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@ -5,3 +5,4 @@ authors = ["Bradlee Speice <bradlee@speice.io>"]
edition = "2018"
[dependencies]
byteorder = "1.3.1"

157
src/lib.rs
View File

@ -1,3 +1,4 @@
use byteorder::{BigEndian, ByteOrder, LittleEndian};
use std::cell::RefCell;
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
@ -55,26 +56,62 @@ pub trait KStream {
fn pos(&self) -> KResult<u64>;
fn size(&self) -> KResult<u64>;
fn read_s1(&self) -> KResult<i8>;
fn read_s2be(&self) -> KResult<i16>;
fn read_s4be(&self) -> KResult<i32>;
fn read_s8be(&self) -> KResult<i64>;
fn read_s2le(&self) -> KResult<i16>;
fn read_s4le(&self) -> KResult<i32>;
fn read_s8le(&self) -> KResult<i64>;
fn read_s1(&self) -> KResult<i8> {
Ok(self.read_bytes(1)?[0] as i8)
}
fn read_s2be(&self) -> KResult<i16> {
Ok(BigEndian::read_i16(self.read_bytes(2)?))
}
fn read_s4be(&self) -> KResult<i32> {
Ok(BigEndian::read_i32(self.read_bytes(4)?))
}
fn read_s8be(&self) -> KResult<i64> {
Ok(BigEndian::read_i64(self.read_bytes(8)?))
}
fn read_s2le(&self) -> KResult<i16> {
Ok(LittleEndian::read_i16(self.read_bytes(2)?))
}
fn read_s4le(&self) -> KResult<i32> {
Ok(LittleEndian::read_i32(self.read_bytes(4)?))
}
fn read_s8le(&self) -> KResult<i64> {
Ok(LittleEndian::read_i64(self.read_bytes(8)?))
}
fn read_u1(&self) -> KResult<u8>;
fn read_u2be(&self) -> KResult<u16>;
fn read_u4be(&self) -> KResult<u32>;
fn read_u8be(&self) -> KResult<u64>;
fn read_u2le(&self) -> KResult<u16>;
fn read_u4le(&self) -> KResult<u32>;
fn read_u8le(&self) -> KResult<u64>;
fn read_u1(&self) -> KResult<u8> {
Ok(self.read_bytes(1)?[0] as u8)
}
fn read_u2be(&self) -> KResult<u16> {
Ok(BigEndian::read_u16(self.read_bytes(2)?))
}
fn read_u4be(&self) -> KResult<u32> {
Ok(BigEndian::read_u32(self.read_bytes(4)?))
}
fn read_u8be(&self) -> KResult<u64> {
Ok(BigEndian::read_u64(self.read_bytes(8)?))
}
fn read_u2le(&self) -> KResult<u16> {
Ok(LittleEndian::read_u16(self.read_bytes(2)?))
}
fn read_u4le(&self) -> KResult<u32> {
Ok(LittleEndian::read_u32(self.read_bytes(4)?))
}
fn read_u8le(&self) -> KResult<u64> {
Ok(LittleEndian::read_u64(self.read_bytes(8)?))
}
fn read_f4be(&self) -> KResult<f32>;
fn read_f8be(&self) -> KResult<f64>;
fn read_f4le(&self) -> KResult<f32>;
fn read_f8le(&self) -> KResult<f64>;
fn read_f4be(&self) -> KResult<f32> {
Ok(BigEndian::read_f32(self.read_bytes(4)?))
}
fn read_f8be(&self) -> KResult<f64> {
Ok(BigEndian::read_f64(self.read_bytes(8)?))
}
fn read_f4le(&self) -> KResult<f32> {
Ok(LittleEndian::read_f32(self.read_bytes(4)?))
}
fn read_f8le(&self) -> KResult<f64> {
Ok(LittleEndian::read_f64(self.read_bytes(8)?))
}
fn align_to_byte(&self) -> KResult<()>;
fn read_bits_int(&self, n: usize) -> KResult<u64>;
@ -164,78 +201,6 @@ impl<'a> KStream for BytesReader<'a> {
unimplemented!()
}
fn read_s1(&self) -> KResult<i8> {
unimplemented!()
}
fn read_s2be(&self) -> KResult<i16> {
unimplemented!()
}
fn read_s4be(&self) -> KResult<i32> {
unimplemented!()
}
fn read_s8be(&self) -> KResult<i64> {
unimplemented!()
}
fn read_s2le(&self) -> KResult<i16> {
unimplemented!()
}
fn read_s4le(&self) -> KResult<i32> {
unimplemented!()
}
fn read_s8le(&self) -> KResult<i64> {
unimplemented!()
}
fn read_u1(&self) -> KResult<u8> {
unimplemented!()
}
fn read_u2be(&self) -> KResult<u16> {
unimplemented!()
}
fn read_u4be(&self) -> KResult<u32> {
unimplemented!()
}
fn read_u8be(&self) -> KResult<u64> {
unimplemented!()
}
fn read_u2le(&self) -> KResult<u16> {
unimplemented!()
}
fn read_u4le(&self) -> KResult<u32> {
unimplemented!()
}
fn read_u8le(&self) -> KResult<u64> {
unimplemented!()
}
fn read_f4be(&self) -> KResult<f32> {
unimplemented!()
}
fn read_f8be(&self) -> KResult<f64> {
unimplemented!()
}
fn read_f4le(&self) -> KResult<f32> {
unimplemented!()
}
fn read_f8le(&self) -> KResult<f64> {
unimplemented!()
}
fn align_to_byte(&self) -> KResult<()> {
let mut inner = self.state.borrow_mut();
inner.bits = 0;
@ -323,7 +288,7 @@ mod tests {
#[test]
fn basic_read_bytes() {
let b = vec![1, 2, 3, 4, 5, 6, 7, 8];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bytes(4).unwrap(), &[1, 2, 3, 4]);
assert_eq!(reader.read_bytes(3).unwrap(), &[5, 6, 7]);
@ -337,7 +302,7 @@ mod tests {
#[test]
fn read_bits_single() {
let b = vec![0x80];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bits_int(1).unwrap(), 1);
}
@ -346,7 +311,7 @@ mod tests {
fn read_bits_multiple() {
// 0xA0
let b = vec![0b10100000];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bits_int(1).unwrap(), 1);
assert_eq!(reader.read_bits_int(1).unwrap(), 0);
@ -356,7 +321,7 @@ mod tests {
#[test]
fn read_bits_large() {
let b = vec![0b10100000];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bits_int(3).unwrap(), 5);
}
@ -364,7 +329,7 @@ mod tests {
#[test]
fn read_bits_span() {
let b = vec![0x01, 0x80];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bits_int(9).unwrap(), 3);
}
@ -372,7 +337,7 @@ mod tests {
#[test]
fn read_bits_too_large() {
let b: Vec<u8> = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
let mut reader = BytesReader::new(&b[..]);
let reader = BytesReader::new(&b[..]);
assert_eq!(reader.read_bits_int(65).unwrap_err(), KError::ReadBitsTooLarge { requested: 65 })
}