wasmer/src/apis/emscripten/varargs.rs
2018-11-26 20:29:26 -08:00

16 lines
399 B
Rust

use crate::webassembly::Instance;
use std::mem;
#[repr(transparent)]
pub struct VarArgs {
pub pointer: u32, // assuming 32bit wasm
}
impl VarArgs {
pub fn get<T: Sized>(&mut self, instance: &mut Instance) -> T {
let ptr = instance.memory_offset_addr(0, self.pointer as usize);
self.pointer += mem::size_of::<T>() as u32;
unsafe { (ptr as *const T).read() }
}
}