use crate::{
BinaryReader, ImportSectionEntryType, Range, Result, SectionIteratorLimited, SectionReader,
SectionWithLimitedItems,
};
#[derive(Debug, Copy, Clone)]
pub struct Import<'a> {
pub module: &'a str,
pub field: Option<&'a str>,
pub ty: ImportSectionEntryType,
}
#[derive(Clone)]
pub struct ImportSectionReader<'a> {
reader: BinaryReader<'a>,
count: u32,
}
impl<'a> ImportSectionReader<'a> {
pub fn new(data: &'a [u8], offset: usize) -> Result<ImportSectionReader<'a>> {
let mut reader = BinaryReader::new_with_offset(data, offset);
let count = reader.read_var_u32()?;
Ok(ImportSectionReader { reader, count })
}
pub fn original_position(&self) -> usize {
self.reader.original_position()
}
pub fn get_count(&self) -> u32 {
self.count
}
pub fn read<'b>(&mut self) -> Result<Import<'b>>
where
'a: 'b,
{
self.reader.read_import()
}
}
impl<'a> SectionReader for ImportSectionReader<'a> {
type Item = Import<'a>;
fn read(&mut self) -> Result<Self::Item> {
ImportSectionReader::read(self)
}
fn eof(&self) -> bool {
self.reader.eof()
}
fn original_position(&self) -> usize {
ImportSectionReader::original_position(self)
}
fn range(&self) -> Range {
self.reader.range()
}
}
impl<'a> SectionWithLimitedItems for ImportSectionReader<'a> {
fn get_count(&self) -> u32 {
ImportSectionReader::get_count(self)
}
}
impl<'a> IntoIterator for ImportSectionReader<'a> {
type Item = Result<Import<'a>>;
type IntoIter = SectionIteratorLimited<ImportSectionReader<'a>>;
fn into_iter(self) -> Self::IntoIter {
SectionIteratorLimited::new(self)
}
}