48 lines
931 B
Rust
48 lines
931 B
Rust
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use crate::obj::prelude::*;
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct ConstHandle(usize);
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impl ConstHandle {
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pub fn index(&self) -> usize {
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self.0
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}
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pub fn new(handle: usize) -> Self {
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ConstHandle(handle)
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}
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}
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#[derive(Debug, Default)]
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pub struct ConstPool {
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pool: Vec<ObjRef>,
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}
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impl ConstPool {
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pub fn new() -> Self {
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Default::default()
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}
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pub fn push(&mut self, value: ObjRef) -> ConstHandle {
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let hdl = ConstHandle::new(self.pool.len());
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self.pool.push(value);
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hdl
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}
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pub fn get(&self, hdl: ConstHandle) -> &ObjRef {
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self.pool.get(hdl.index()).unwrap()
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}
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pub fn len(&self) -> usize {
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self.pool.len()
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}
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}
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impl std::ops::Index<ConstHandle> for ConstPool {
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type Output = ObjRef;
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fn index(&self, hdl: ConstHandle) -> &Self::Output {
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self.get(hdl)
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}
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}
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