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wasm: use a debug-friendly enum for refcount tests

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This commit is contained in:
Brian Carroll 2022-03-05 13:37:01 +00:00
parent eaf76aa879
commit 4d14fbf562
3 changed files with 68 additions and 57 deletions
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7
compiler/test_gen/src/helpers/mod.rs
View file

@ -55,3 +55,10 @@ where
{
run_test()
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum RefCount {
Live(u32),
Deallocated,
Constant,
}

16
compiler/test_gen/src/helpers/wasm.rs
View file

@ -6,6 +6,7 @@ use std::marker::PhantomData;
use std::path::{Path, PathBuf};
use wasmer::{Memory, WasmPtr};
use super::RefCount;
use crate::helpers::from_wasmer_memory::FromWasmerMemory;
use roc_collections::all::{MutMap, MutSet};
use roc_gen_wasm::wasm32_result::Wasm32Result;
@ -250,7 +251,7 @@ pub fn assert_wasm_refcounts_help<T>(
src: &str,
phantom: PhantomData<T>,
num_refcounts: usize,
) -> Result<Vec<u32>, String>
) -> Result<Vec<RefCount>, String>
where
T: FromWasmerMemory + Wasm32Result,
{
@ -296,12 +297,15 @@ where
for i in 0..num_refcounts {
let rc_ptr = refcount_ptrs[i].get();
let rc = if rc_ptr.offset() == 0 {
// RC pointer has been set to null, which means the value has been freed.
// In tests, we simply represent this as zero refcount.
0
RefCount::Deallocated
} else {
let rc_encoded = rc_ptr.deref(memory).unwrap().get();
(rc_encoded - i32::MIN + 1) as u32
let rc_encoded: i32 = rc_ptr.deref(memory).unwrap().get();
if rc_encoded == 0 {
RefCount::Constant
} else {
let rc = rc_encoded - i32::MIN + 1;
RefCount::Live(rc as u32)
}
};
refcounts.push(rc);
}