INNER CODE UNIT · Rust

read_spirv

gfx-rs/gfx · src/auxil/auxil/src/lib.rs:60

pub fn read_spirv<R: io::Read + io::Seek>(mut x: R) -> io::Result<Vec<u32>> {
    let size = x.seek(io::SeekFrom::End(0))?;
    if size % 4 != 0 {
        return Err(io::Error::new(
            io::ErrorKind::InvalidData,
            "input length not divisible by 4",
        ));
    }
    if size > usize::MAX as u64 {
        return Err(io::Error::new(io::ErrorKind::InvalidData, "input too long"));
    }
    let words = (size / 4) as usize;
    let mut result = Vec::<u32>::with_capacity(words);
    x.seek(io::SeekFrom::Start(0))?;
    unsafe {
        // Writing all bytes through a pointer with less strict alignment when our type has no
        // invalid bitpatterns is safe.
        x.read_exact(slice::from_raw_parts_mut(

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