helper cleanup

src/file/helpers.rs

@@ -5,10 +5,13 @@ pub const EMPTY: [u8; 1] = [0; 1];
 pub const OP_LEN: u8 = 4;
 
 pub fn write_empty_byte(file: &mut File) {
+
     let res = file.write(&EMPTY);
+
     if let Err(e) = res {
         panic!("Failed to write empty byte: {}", e);
     }
+
     if res.unwrap() != EMPTY.len() {
         panic!("Failed to write empty byte: {}", "Write length mismatch.");
     }
@@ -34,6 +37,7 @@ pub fn cut(file: &mut File) {
 }
 
 pub fn truncate(file: &mut File) {
+
     let res = file.set_len(0);
 
     if let Err(e) = res {
@@ -45,6 +49,7 @@ pub fn truncate(file: &mut File) {
 }
 
 pub fn jump_stream_start(file: &mut File) {
+
     let res = file.seek(SeekFrom::Start(0));
 
     if let Err(e) = res {
@@ -53,6 +58,7 @@ pub fn jump_stream_start(file: &mut File) {
 }
 
 pub fn jump_stream_end(file: &mut File) {
+
     let res = file.seek(SeekFrom::End(-1));
 
     if let Err(e) = res {
@@ -61,6 +67,7 @@ pub fn jump_stream_end(file: &mut File) {
 }
 
 pub fn catch_stream_read(file: &mut File, read: usize, predict: usize, fix_fn: fn(file: &mut File)) -> Result<(), Error> {
+
     if read != predict {
         fix_fn(file);
         return Err(
@@ -70,6 +77,7 @@ pub fn catch_stream_read(file: &mut File, read: usize, predict: usize, fix_fn: f
             )
         );
     }
+
     Ok(())
 }
 
@@ -170,6 +178,7 @@ pub fn read(file: &mut File) -> Result<Vec<u8>, Error> {
 }
 
 pub fn seek_forward(file: &mut File) -> Result<(), Error> {
+
     let mut len_buf: [u8; OP_LEN as usize] = [0; OP_LEN as usize];
 
     let res = file.read(&mut len_buf);
@@ -203,6 +212,7 @@ pub fn seek_forward(file: &mut File) -> Result<(), Error> {
 }
 
 pub fn seek_backward(file: &mut File) -> Result<(), Error> {
+
     let mut len_buf: [u8; OP_LEN as usize] = [0; OP_LEN as usize];
 
     let res = file.seek(SeekFrom::Current(-(OP_LEN as i64)));
@@ -251,20 +261,23 @@ pub fn seek_backward(file: &mut File) -> Result<(), Error> {
 }
 
 pub fn seek_forward_n(file: &mut File, n: u64) -> Result<(), Error> {
+
     for _ in 0..n {
         seek_forward(file)?;
     }
     Ok(())
 }
 
 pub fn seek_backward_n(file: &mut File, n: u64) -> Result<(), Error> {
+
     for _ in 0..n {
         seek_backward(file)?;
     }
     Ok(())
 }
 
 pub fn inner_len(file: &mut File) -> Result<u32, Error> {
+
     let mut len_buf: [u8; OP_LEN as usize] = [0; OP_LEN as usize];
     let res = file.read(&mut len_buf);
 
@@ -291,6 +304,7 @@ pub fn inner_len(file: &mut File) -> Result<u32, Error> {
 }
 
 pub fn len_calc(inner_lens: Vec<u32>, op_sets: u8) -> i64 {
+
     let mut len = 0;
     for inner_len in inner_lens {
         len += inner_len as u64 + 2*OP_LEN as u64;