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use crate::{
BinaryReader, MemoryType, Result, SectionIteratorLimited, SectionReader,
SectionWithLimitedItems,
};
use std::ops::Range;
#[derive(Clone)]
pub struct MemorySectionReader<'a> {
reader: BinaryReader<'a>,
count: u32,
}
impl<'a> MemorySectionReader<'a> {
pub fn new(data: &'a [u8], offset: usize) -> Result<MemorySectionReader<'a>> {
let mut reader = BinaryReader::new_with_offset(data, offset);
let count = reader.read_var_u32()?;
Ok(MemorySectionReader { reader, count })
}
pub fn original_position(&self) -> usize {
self.reader.original_position()
}
pub fn get_count(&self) -> u32 {
self.count
}
pub fn read(&mut self) -> Result<MemoryType> {
self.reader.read_memory_type()
}
}
impl<'a> SectionReader for MemorySectionReader<'a> {
type Item = MemoryType;
fn read(&mut self) -> Result<Self::Item> {
MemorySectionReader::read(self)
}
fn eof(&self) -> bool {
self.reader.eof()
}
fn original_position(&self) -> usize {
MemorySectionReader::original_position(self)
}
fn range(&self) -> Range<usize> {
self.reader.range()
}
}
impl<'a> SectionWithLimitedItems for MemorySectionReader<'a> {
fn get_count(&self) -> u32 {
MemorySectionReader::get_count(self)
}
}
impl<'a> IntoIterator for MemorySectionReader<'a> {
type Item = Result<MemoryType>;
type IntoIter = SectionIteratorLimited<MemorySectionReader<'a>>;
fn into_iter(self) -> Self::IntoIter {
SectionIteratorLimited::new(self)
}
}