use crate::private::layout::{
ListBuilder, ListReader, PointerBuilder, PointerReader, PrimitiveElement, TwoBytes,
};
use crate::traits::{FromPointerBuilder, FromPointerReader, IndexMove, ListIter};
use crate::{NotInSchema, Result};
use core::marker::PhantomData;
#[derive(Clone, Copy)]
pub struct Owned<T> {
marker: PhantomData<T>,
}
impl<T> crate::introspect::Introspect for Owned<T>
where
T: crate::introspect::Introspect,
{
fn introspect() -> crate::introspect::Type {
crate::introspect::Type::list_of(T::introspect())
}
}
impl<T> crate::traits::Owned for Owned<T>
where
T: TryFrom<u16, Error = NotInSchema> + crate::introspect::Introspect,
{
type Reader<'a> = Reader<'a, T>;
type Builder<'a> = Builder<'a, T>;
}
#[derive(Clone, Copy)]
pub struct Reader<'a, T> {
marker: PhantomData<T>,
reader: ListReader<'a>,
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>> Reader<'a, T> {
pub fn len(&self) -> u32 {
self.reader.len()
}
pub fn is_empty(&self) -> bool {
self.len() == 0
}
pub fn iter(self) -> ListIter<Reader<'a, T>, ::core::result::Result<T, NotInSchema>> {
let l = self.len();
ListIter::new(self, l)
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>> FromPointerReader<'a> for Reader<'a, T> {
fn get_from_pointer(
reader: &PointerReader<'a>,
default: Option<&'a [crate::Word]>,
) -> Result<Reader<'a, T>> {
Ok(Reader {
reader: reader.get_list(TwoBytes, default)?,
marker: PhantomData,
})
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>>
IndexMove<u32, ::core::result::Result<T, NotInSchema>> for Reader<'a, T>
{
fn index_move(&self, index: u32) -> ::core::result::Result<T, NotInSchema> {
self.get(index)
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>> Reader<'a, T> {
pub fn get(&self, index: u32) -> ::core::result::Result<T, NotInSchema> {
assert!(index < self.len());
let result: u16 = PrimitiveElement::get(&self.reader, index);
result.try_into()
}
pub fn try_get(&self, index: u32) -> Option<::core::result::Result<T, NotInSchema>> {
if index < self.len() {
let result: u16 = PrimitiveElement::get(&self.reader, index);
Some(result.try_into())
} else {
None
}
}
}
impl<'a, T> crate::traits::IntoInternalListReader<'a> for Reader<'a, T>
where
T: PrimitiveElement,
{
fn into_internal_list_reader(self) -> ListReader<'a> {
self.reader
}
}
pub struct Builder<'a, T> {
marker: PhantomData<T>,
builder: ListBuilder<'a>,
}
impl<'a, T: Into<u16> + TryFrom<u16, Error = NotInSchema>> Builder<'a, T> {
pub fn len(&self) -> u32 {
self.builder.len()
}
pub fn is_empty(&self) -> bool {
self.len() == 0
}
pub fn into_reader(self) -> Reader<'a, T> {
Reader {
reader: self.builder.into_reader(),
marker: PhantomData,
}
}
pub fn set(&mut self, index: u32, value: T) {
assert!(index < self.len());
PrimitiveElement::set(&self.builder, index, value.into());
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>> FromPointerBuilder<'a> for Builder<'a, T> {
fn init_pointer(builder: PointerBuilder<'a>, size: u32) -> Builder<'a, T> {
Builder {
builder: builder.init_list(TwoBytes, size),
marker: PhantomData,
}
}
fn get_from_pointer(
builder: PointerBuilder<'a>,
default: Option<&'a [crate::Word]>,
) -> Result<Builder<'a, T>> {
Ok(Builder {
builder: builder.get_list(TwoBytes, default)?,
marker: PhantomData,
})
}
}
impl<'a, T: Into<u16> + TryFrom<u16, Error = NotInSchema>> Builder<'a, T> {
pub fn get(&self, index: u32) -> ::core::result::Result<T, NotInSchema> {
assert!(index < self.len());
let result: u16 = PrimitiveElement::get_from_builder(&self.builder, index);
result.try_into()
}
pub fn try_get(&self, index: u32) -> Option<::core::result::Result<T, NotInSchema>> {
if index < self.len() {
let result: u16 = PrimitiveElement::get_from_builder(&self.builder, index);
Some(result.try_into())
} else {
None
}
}
pub fn reborrow(&mut self) -> Builder<'_, T> {
Builder {
builder: self.builder.reborrow(),
marker: PhantomData,
}
}
}
impl<'a, T> crate::traits::SetterInput<Owned<T>> for Reader<'a, T> {
#[inline]
fn set_pointer_builder<'b>(
mut pointer: crate::private::layout::PointerBuilder<'b>,
value: Reader<'a, T>,
canonicalize: bool,
) -> Result<()> {
pointer.set_list(&value.reader, canonicalize)
}
}
impl<'a, T: Copy + Into<u16>> crate::traits::SetterInput<Owned<T>> for &'a [T] {
#[inline]
fn set_pointer_builder<'b>(
pointer: crate::private::layout::PointerBuilder<'b>,
value: &'a [T],
_canonicalize: bool,
) -> Result<()> {
let builder = pointer.init_list(
crate::private::layout::ElementSize::TwoBytes,
value.len() as u32,
);
for (idx, v) in value.iter().enumerate() {
<u16 as PrimitiveElement>::set(&builder, idx as u32, (*v).into())
}
Ok(())
}
}
impl<'a, T: Copy + Into<u16>, const N: usize> crate::traits::SetterInput<Owned<T>> for &'a [T; N] {
#[inline]
fn set_pointer_builder<'b>(
pointer: crate::private::layout::PointerBuilder<'b>,
value: &'a [T; N],
canonicalize: bool,
) -> Result<()> {
crate::traits::SetterInput::set_pointer_builder(pointer, &value[..], canonicalize)
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema>> ::core::iter::IntoIterator for Reader<'a, T> {
type Item = ::core::result::Result<T, NotInSchema>;
type IntoIter = ListIter<Reader<'a, T>, Self::Item>;
fn into_iter(self) -> Self::IntoIter {
self.iter()
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema> + crate::introspect::Introspect> From<Reader<'a, T>>
for crate::dynamic_value::Reader<'a>
{
fn from(t: Reader<'a, T>) -> crate::dynamic_value::Reader<'a> {
crate::dynamic_value::Reader::List(crate::dynamic_list::Reader::new(
t.reader,
T::introspect(),
))
}
}
impl<'a, T: TryFrom<u16, Error = NotInSchema> + crate::introspect::Introspect> From<Builder<'a, T>>
for crate::dynamic_value::Builder<'a>
{
fn from(t: Builder<'a, T>) -> crate::dynamic_value::Builder<'a> {
crate::dynamic_value::Builder::List(crate::dynamic_list::Builder::new(
t.builder,
T::introspect(),
))
}
}
impl<'a, T: Copy + TryFrom<u16, Error = NotInSchema> + crate::introspect::Introspect>
core::fmt::Debug for Reader<'a, T>
{
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
core::fmt::Debug::fmt(
&::core::convert::Into::<crate::dynamic_value::Reader<'_>>::into(*self),
f,
)
}
}