/* Copyright 2020 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
use crate::{BinaryReader, FromReader, Result, SectionLimited, TagKind, TagType};
/// A reader for the tags section of a WebAssembly module.
pub type TagSectionReader<'a> = SectionLimited<'a, TagType>;
impl<'a> FromReader<'a> for TagType {
fn from_reader(reader: &mut BinaryReader<'a>) -> Result<Self> {
let attribute = reader.read_u8()?;
if attribute != 0 {
bail!(reader.original_position() - 1, "invalid tag attributes");
}
Ok(TagType {
kind: TagKind::Exception,
func_type_idx: reader.read_var_u32()?,
})
}
}