wasmer/lib/emscripten/src/varargs.rs
2019-01-10 21:38:10 -08:00

16 lines
395 B
Rust

use wasmer_runtime::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() }
}
}