Merge pull request #3276 from Skgland/cleanup

remove unused file

src/machine/raw_block.rs

@@ -1,111 +0,0 @@
-use core::marker::PhantomData;
-
-use std::alloc;
-use std::mem;
-use std::ptr;
-
-pub(crate) trait RawBlockTraits {
-    fn init_size() -> usize;
-    fn align() -> usize;
-
-    #[inline]
-    fn base_offset(base: *const u8) -> *const u8 {
-        base
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct RawBlock<T: RawBlockTraits> {
-    pub(crate) size: usize,
-    pub(crate) base: *const u8,
-    pub(crate) top: *const u8,
-    _marker: PhantomData<T>,
-}
-
-impl<T: RawBlockTraits> RawBlock<T> {
-    pub(crate) fn new() -> Self {
-        let mut block = RawBlock {
-            size: 0,
-            base: ptr::null(),
-            top: ptr::null(),
-            _marker: PhantomData,
-        };
-
-        unsafe {
-            block.grow();
-        }
-
-        block
-    }
-
-    unsafe fn init_at_size(&mut self, cap: usize) {
-        let layout = alloc::Layout::from_size_align_unchecked(cap, T::align());
-
-        self.base = alloc::alloc(layout) as *const _;
-        self.size = cap;
-
-        self.top = T::base_offset(self.base);
-    }
-
-    pub(super) unsafe fn grow(&mut self) {
-        if self.size == 0 {
-            self.init_at_size(T::init_size());
-        } else {
-            let layout = alloc::Layout::from_size_align_unchecked(T::init_size(), T::align());
-            let top_dist = self.top as usize - self.base as usize;
-
-            self.base = alloc::realloc(self.base as *mut _, layout, self.size * 2) as *const _;
-            self.top = (self.base as usize + top_dist) as *const _;
-            self.size *= 2;
-        }
-    }
-
-    fn empty_block() -> Self {
-        RawBlock {
-            size: 0,
-            base: ptr::null(),
-            top: ptr::null(),
-            _marker: PhantomData,
-        }
-    }
-
-    #[inline]
-    pub(crate) fn take(&mut self) -> Self {
-        mem::replace(self, Self::empty_block())
-    }
-
-    #[inline]
-    fn free_space(&self) -> usize {
-        debug_assert!(
-            self.top >= self.base,
-            "self.top = {:?} < {:?} = self.base",
-            self.top,
-            self.base
-        );
-
-        self.size - (self.top as usize - self.base as usize)
-    }
-
-    #[inline]
-    pub(crate) unsafe fn new_block(&mut self, size: usize) -> *const u8 {
-        loop {
-            if self.free_space() >= size {
-                return (self.top as usize + size) as *const _;
-            } else {
-                self.grow();
-            }
-        }
-    }
-
-    pub(crate) fn deallocate(&mut self) {
-        unsafe {
-            let layout = alloc::Layout::from_size_align_unchecked(self.size, T::align());
-
-            alloc::dealloc(self.base as *mut u8, layout);
-
-            self.top = ptr::null();
-            self.base = ptr::null();
-            self.size = 0;
-        }
-    }
-}