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Wasm tests: Skip linking step (and all filesystem access) when not needed

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This commit is contained in:
Brian Carroll 2021-12-31 15:27:05 +00:00
parent 84661b7ae1
commit 4a6b79b686
1 changed files with 16 additions and 8 deletions
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24
compiler/test_gen/src/helpers/wasm.rs
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@ -52,17 +52,23 @@ pub fn compile_and_load<'a, T: Wasm32TestResult>(
_test_wrapper_type_info: PhantomData<T>,
test_type: TestType,
) -> wasmer::Instance {
let app_module_bytes = compile_roc_to_wasm_bytes(arena, src, stdlib, _test_wrapper_type_info);
let (app_module_bytes, needs_linking) =
compile_roc_to_wasm_bytes(arena, src, stdlib, _test_wrapper_type_info);
let maybe_src_hash = if DEBUG_LOG_SETTINGS.keep_test_binary {
let keep_test_binary = DEBUG_LOG_SETTINGS.keep_test_binary;
let build_dir_hash = if keep_test_binary {
// Keep the output files for debugging, in a directory with a hash in the name
Some(src_hash(src))
} else {
// Use a temporary for linking, then delete it
// Use a temporary build directory for linking, then delete it
None
};
let final_bytes = run_linker(app_module_bytes, maybe_src_hash, test_type);
let final_bytes = if needs_linking || keep_test_binary {
run_linker(app_module_bytes, build_dir_hash, test_type)
} else {
app_module_bytes
};
load_bytes_into_runtime(final_bytes)
}
@ -78,7 +84,7 @@ fn compile_roc_to_wasm_bytes<'a, T: Wasm32TestResult>(
src: &str,
stdlib: &'a roc_builtins::std::StdLib,
_test_wrapper_type_info: PhantomData<T>,
) -> Vec<u8> {
) -> (Vec<u8>, bool) {
let filename = PathBuf::from("Test.roc");
let src_dir = Path::new("fake/test/path");
@ -132,21 +138,23 @@ fn compile_roc_to_wasm_bytes<'a, T: Wasm32TestResult>(
T::insert_test_wrapper(arena, &mut wasm_module, TEST_WRAPPER_NAME, main_fn_index);
let needs_linking = !wasm_module.import.entries.is_empty();
let mut app_module_bytes = std::vec::Vec::with_capacity(4096);
wasm_module.serialize_mut(&mut app_module_bytes);
app_module_bytes
(app_module_bytes, needs_linking)
}
fn run_linker(
app_module_bytes: Vec<u8>,
maybe_src_hash: Option<u64>,
build_dir_hash: Option<u64>,
test_type: TestType,
) -> Vec<u8> {
let tmp_dir: TempDir; // directory for normal test runs, deleted when dropped
let debug_dir: String; // persistent directory for debugging
let wasm_build_dir: &Path = if let Some(src_hash) = maybe_src_hash {
let wasm_build_dir: &Path = if let Some(src_hash) = build_dir_hash {
debug_dir = format!("/tmp/roc/gen_wasm/{:016x}", src_hash);
std::fs::create_dir_all(&debug_dir).unwrap();
println!(