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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
use std::collections::HashMap;
use thin_vec::ThinVec;
#[repr(C)]
pub struct CompactSymbolTable {
pub addr: ThinVec<u32>,
pub index: ThinVec<u32>,
pub buffer: ThinVec<u8>,
}
impl CompactSymbolTable {
pub fn new() -> Self {
Self {
addr: ThinVec::new(),
index: ThinVec::new(),
buffer: ThinVec::new(),
}
}
pub fn from_map(map: HashMap<u32, &str>) -> Self {
let mut table = Self::new();
let mut entries: Vec<_> = map.into_iter().collect();
entries.sort_by_key(|&(addr, _)| addr);
for (addr, name) in entries {
table.addr.push(addr);
table.index.push(table.buffer.len() as u32);
table.add_name(name);
}
table.index.push(table.buffer.len() as u32);
table
}
fn add_name(&mut self, name: &str) {
self.buffer.extend_from_slice(name.as_bytes());
}
}
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