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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
use crate::vecs::{Index16, Index32};
use crate::{ule::VarULE, VarZeroSlice, VarZeroVec};
use databake::*;
impl<T: VarULE + ?Sized> Bake for VarZeroVec<'_, T, Index16> {
fn bake(&self, env: &CrateEnv) -> TokenStream {
env.insert("zerovec");
if self.is_empty() {
quote! { zerovec::vecs::VarZeroVec16::new() }
} else {
let bytes = databake::Bake::bake(&self.as_bytes(), env);
// Safety: bytes was obtained from a VarZeroVec via as_bytes() above,
// and thus is valid for unchecked construction.
quote! { unsafe { zerovec::vecs::VarZeroVec16::from_bytes_unchecked(#bytes) } }
}
}
}
impl<T: VarULE + ?Sized> Bake for VarZeroVec<'_, T, Index32> {
fn bake(&self, env: &CrateEnv) -> TokenStream {
env.insert("zerovec");
if self.is_empty() {
quote! { zerovec::vecs::VarZeroVec32::new() }
} else {
let bytes = databake::Bake::bake(&self.as_bytes(), env);
// Safety: bytes was obtained from a VarZeroVec via as_bytes() above,
// and thus is valid for unchecked construction.
quote! { unsafe { zerovec::vecs::VarZeroVec32::from_bytes_unchecked(#bytes) } }
}
}
}
impl<T: VarULE + ?Sized> BakeSize for VarZeroVec<'_, T, Index16> {
fn borrows_size(&self) -> usize {
self.as_bytes().len()
}
}
impl<T: VarULE + ?Sized> BakeSize for VarZeroVec<'_, T, Index32> {
fn borrows_size(&self) -> usize {
self.as_bytes().len()
}
}
impl<T: VarULE + ?Sized> Bake for &VarZeroSlice<T, Index16> {
fn bake(&self, env: &CrateEnv) -> TokenStream {
env.insert("zerovec");
if self.is_empty() {
quote! { zerovec::vecs::VarZeroSlice16::new_empty() }
} else {
let bytes = databake::Bake::bake(&self.as_bytes(), env);
// Safety: bytes was obtained from a VarZeroSlice via as_bytes() above,
// and thus is valid for unchecked construction.
quote! { unsafe { zerovec::vecs::VarZeroSlice16::from_bytes_unchecked(#bytes) } }
}
}
}
impl<T: VarULE + ?Sized> Bake for &VarZeroSlice<T, Index32> {
fn bake(&self, env: &CrateEnv) -> TokenStream {
env.insert("zerovec");
if self.is_empty() {
quote! { zerovec::vecs::VarZeroSlice32::new_empty() }
} else {
let bytes = databake::Bake::bake(&self.as_bytes(), env);
// Safety: bytes was obtained from a VarZeroSlice via as_bytes() above,
// and thus is valid for unchecked construction.
quote! { unsafe { zerovec::vecs::VarZeroSlice32::from_bytes_unchecked(#bytes) } }
}
}
}
impl<T: VarULE + ?Sized> BakeSize for &VarZeroSlice<T, Index16> {
fn borrows_size(&self) -> usize {
if self.is_empty() {
0
} else {
self.as_bytes().len()
}
}
}
impl<T: VarULE + ?Sized> BakeSize for &VarZeroSlice<T, Index32> {
fn borrows_size(&self) -> usize {
if self.is_empty() {
0
} else {
self.as_bytes().len()
}
}
}
#[test]
fn test_baked_vec() {
test_bake!(
VarZeroVec<str>,
const,
crate::vecs::VarZeroVec16::new(),
zerovec
);
test_bake!(
VarZeroVec<str>,
const,
unsafe {
crate::vecs::VarZeroVec16::from_bytes_unchecked(b"\x02\0\0\0\0\0\x05\0helloworld")
},
zerovec
);
}
#[test]
fn test_baked_slice() {
test_bake!(
&VarZeroSlice<str>,
const,
crate::vecs::VarZeroSlice16::new_empty(),
zerovec
);
test_bake!(
&VarZeroSlice<str>,
const,
unsafe {
crate::vecs::VarZeroSlice16::from_bytes_unchecked(b"\x02\0\0\0\0\0\x05\0helloworld")
},
zerovec
);
}