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add ComponentType/Lift/Lower derive macro for record types (#4337)

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This is the first stage of implementing
https://github.com/bytecodealliance/wasmtime/issues/4308, i.e. derive macros for
`ComponentType`, `Lift`, and `Lower` for composite types in the component model.
This stage only covers records; I expect the other composite types will follow a
similar pattern.

It borrows heavily from the work Jamey Sharp did in
https://github.com/bytecodealliance/wasmtime/pull/4217.  Thanks for that, and
thanks to both Jamey and Alex Crichton for their excellent review feedback.
Thanks also to Brian for pairing up on the initial draft.

Signed-off-by: Joel Dice <joel.dice@fermyon.com>
This commit is contained in:
Joel Dice
2022-06-29 08:38:36 -06:00
committed by GitHub
parent eef1758d19
commit 22fb3ecbbf
14 changed files with 660 additions and 46 deletions
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20
tests/all/component_model/func.rs
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@@ -1,9 +1,9 @@
use super::REALLOC_AND_FREE;
use super::{TypedFuncExt, REALLOC_AND_FREE};
use anyhow::Result;
use std::rc::Rc;
use std::sync::Arc;
use wasmtime::component::*;
use wasmtime::{AsContextMut, Store, StoreContextMut, Trap, TrapCode};
use wasmtime::{Store, StoreContextMut, Trap, TrapCode};
const CANON_32BIT_NAN: u32 = 0b01111111110000000000000000000000;
const CANON_64BIT_NAN: u64 = 0b0111111111111000000000000000000000000000000000000000000000000000;
@@ -400,22 +400,6 @@ fn integers() -> Result<()> {
Ok(())
}
trait TypedFuncExt<P, R> {
fn call_and_post_return(&self, store: impl AsContextMut, params: P) -> Result<R>;
}
impl<P, R> TypedFuncExt<P, R> for TypedFunc<P, R>
where
P: ComponentParams + Lower,
R: Lift,
{
fn call_and_post_return(&self, mut store: impl AsContextMut, params: P) -> Result<R> {
let result = self.call(&mut store, params)?;
self.post_return(&mut store)?;
Ok(result)
}
}
#[test]
fn type_layers() -> Result<()> {
let component = r#"