tinywasm 0.9.0-alpha.0

A tiny WebAssembly interpreter
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

use crate::TableElement;
use alloc::vec::Vec;
use tinywasm_types::*;

/// A WebAssembly Element Instance
///
/// See <https://webassembly.github.io/spec/core/exec/runtime.html#element-instances>
#[cfg_attr(feature = "debug", derive(Debug))]
pub(crate) struct ElementInstance {
    pub(crate) kind: ElementKind,
    pub(crate) items: Option<Vec<TableElement>>, // none is the element was dropped
}

impl ElementInstance {
    pub(crate) fn new(kind: ElementKind, items: Option<Vec<TableElement>>) -> Self {
        Self { kind, items }
    }

    pub(crate) fn drop(&mut self) {
        self.items.is_some().then(|| self.items.take());
    }
}