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-rw-r--r--crates/cli/src/wast_runner.rs885
1 files changed, 885 insertions, 0 deletions
diff --git a/crates/cli/src/wast_runner.rs b/crates/cli/src/wast_runner.rs
new file mode 100644
index 0000000..8a759b7
--- /dev/null
+++ b/crates/cli/src/wast_runner.rs
@@ -0,0 +1,885 @@
+use std::collections::{BTreeMap, HashMap};
+use std::fmt::{Display, Formatter};
+use std::fs::canonicalize;
+use std::path::PathBuf;
+use std::{
+ panic::{self, AssertUnwindSafe},
+ time::Duration,
+};
+
+use eyre::{Context, Result, bail, eyre};
+use log::{debug, error};
+use tinywasm::types::{ExternRef, FuncRef, MemoryType, TableType, WasmType, WasmValue};
+use tinywasm::{ExecProgress, Global, HostFunction, Imports, Memory, Module, ModuleInstance, Store, Table};
+use wast::{QuoteWat, core::AbstractHeapType};
+
+const TEST_TIME_SLICE: Duration = Duration::from_millis(20);
+const TEST_MAX_SUSPENSIONS: u32 = 1000;
+
+#[derive(Default)]
+struct ModuleRegistry {
+ modules: HashMap<String, ModuleInstance>,
+ named_modules: HashMap<String, ModuleInstance>,
+ last_module: Option<ModuleInstance>,
+}
+
+impl ModuleRegistry {
+ fn modules(&self) -> &HashMap<String, ModuleInstance> {
+ &self.modules
+ }
+
+ fn update_last_module(&mut self, module: ModuleInstance, name: Option<String>) {
+ self.last_module = Some(module.clone());
+ if let Some(name) = name {
+ self.named_modules.insert(name, module);
+ }
+ }
+
+ fn register(&mut self, name: String, module: ModuleInstance) {
+ debug!("registering module: {name}");
+ self.modules.insert(name.clone(), module.clone());
+ self.last_module = Some(module.clone());
+ self.named_modules.insert(name, module);
+ }
+
+ fn get_idx(&self, module_id: Option<wast::token::Id<'_>>) -> Option<u32> {
+ match module_id {
+ Some(module) => self
+ .modules
+ .get(module.name())
+ .or_else(|| self.named_modules.get(module.name()))
+ .map(ModuleInstance::id),
+ None => self.last_module.as_ref().map(ModuleInstance::id),
+ }
+ }
+
+ fn get(&self, module_id: Option<wast::token::Id<'_>>) -> Option<ModuleInstance> {
+ match module_id {
+ Some(module_id) => {
+ self.modules.get(module_id.name()).or_else(|| self.named_modules.get(module_id.name())).cloned()
+ }
+ None => self.last_module.clone(),
+ }
+ }
+
+ fn last(&self) -> Option<ModuleInstance> {
+ self.last_module.clone()
+ }
+}
+
+#[derive(Default)]
+pub struct WastRunner(BTreeMap<String, TestGroup>);
+
+#[derive(Clone, Debug)]
+pub struct GroupResult {
+ pub name: String,
+ pub file: String,
+ pub passed: usize,
+ pub failed: usize,
+}
+
+impl WastRunner {
+ pub fn new() -> Self {
+ Self::default()
+ }
+
+ pub fn run_paths(&mut self, tests: &[PathBuf]) -> Result<()> {
+ for path in expand_paths(tests)? {
+ let contents =
+ std::fs::read_to_string(&path).context(format!("failed to read file: {}", path.to_string_lossy()))?;
+
+ let file = TestFile {
+ contents: &contents,
+ name: path.to_string_lossy().to_string(),
+ parent: canonicalize(&path)?.to_string_lossy().to_string(),
+ };
+
+ self.run_file(file)?;
+ }
+
+ self.print_errors();
+ if self.failed() {
+ anstream::println!("{self}");
+ Err(eyre!("failed one or more tests"))
+ } else {
+ anstream::println!("{self}");
+ Ok(())
+ }
+ }
+
+ pub fn set_log_level(level: log::LevelFilter) {
+ let _ = pretty_env_logger::formatted_builder().filter_level(level).try_init();
+ }
+
+ pub fn failed(&self) -> bool {
+ self.0.values().any(|group| group.stats().1 > 0)
+ }
+
+ pub fn print_errors(&self) {
+ for group in self.0.values() {
+ for test in &group.tests {
+ if let Err(err) = &test.result {
+ eprintln!(
+ "{}:{}:{} {} failed: {}",
+ group.file,
+ test.linecol.0 + 1,
+ test.linecol.1 + 1,
+ test.name,
+ err
+ );
+ }
+ }
+ }
+ }
+
+ pub fn group_results(&self) -> Vec<GroupResult> {
+ self.0
+ .iter()
+ .map(|(name, group)| {
+ let (passed, failed) = group.stats();
+ GroupResult { name: name.clone(), file: group.file.clone(), passed, failed }
+ })
+ .collect()
+ }
+
+ fn test_group(&mut self, name: &str, file: &str) -> &mut TestGroup {
+ self.0.entry(name.to_string()).or_insert_with(|| TestGroup::new(file))
+ }
+
+ pub fn run_files<'a>(&mut self, tests: impl IntoIterator<Item = TestFile<'a>>) -> Result<()> {
+ for file in tests {
+ self.run_file(file)?;
+ }
+ Ok(())
+ }
+
+ fn imports(store: &mut Store, modules: &HashMap<String, ModuleInstance>) -> Result<Imports> {
+ let mut imports = Imports::new();
+
+ let table = Table::new(
+ store,
+ TableType::new(WasmType::RefFunc, 10, Some(20)),
+ WasmValue::default_for(WasmType::RefFunc),
+ )?;
+ let memory = Memory::new(store, MemoryType::default().with_page_count_initial(1).with_page_count_max(Some(2)))?;
+ let global_i32 =
+ Global::new(store, tinywasm::types::GlobalType::new(WasmType::I32, false), WasmValue::I32(666))?;
+ let global_i64 =
+ Global::new(store, tinywasm::types::GlobalType::new(WasmType::I64, false), WasmValue::I64(666))?;
+ let global_f32 =
+ Global::new(store, tinywasm::types::GlobalType::new(WasmType::F32, false), WasmValue::F32(666.6))?;
+ let global_f64 =
+ Global::new(store, tinywasm::types::GlobalType::new(WasmType::F64, false), WasmValue::F64(666.6))?;
+
+ imports
+ .define("spectest", "memory", memory)
+ .define("spectest", "table", table)
+ .define("spectest", "global_i32", global_i32)
+ .define("spectest", "global_i64", global_i64)
+ .define("spectest", "global_f32", global_f32)
+ .define("spectest", "global_f64", global_f64)
+ .define("spectest", "print", HostFunction::from(store, |_ctx: tinywasm::FuncContext, (): ()| Ok(())))
+ .define("spectest", "print_i32", HostFunction::from(store, |_ctx: tinywasm::FuncContext, _arg: i32| Ok(())))
+ .define("spectest", "print_i64", HostFunction::from(store, |_ctx: tinywasm::FuncContext, _arg: i64| Ok(())))
+ .define("spectest", "print_f32", HostFunction::from(store, |_ctx: tinywasm::FuncContext, _arg: f32| Ok(())))
+ .define("spectest", "print_f64", HostFunction::from(store, |_ctx: tinywasm::FuncContext, _arg: f64| Ok(())))
+ .define(
+ "spectest",
+ "print_i32_f32",
+ HostFunction::from(store, |_ctx: tinywasm::FuncContext, _args: (i32, f32)| Ok(())),
+ )
+ .define(
+ "spectest",
+ "print_f64_f64",
+ HostFunction::from(store, |_ctx: tinywasm::FuncContext, _args: (f64, f64)| Ok(())),
+ );
+
+ for (name, module) in modules {
+ imports.link_module(name, module.clone())?;
+ }
+
+ Ok(imports)
+ }
+
+ pub fn run_file(&mut self, file: TestFile<'_>) -> Result<()> {
+ let test_group = self.test_group(file.name(), file.parent());
+ let wast_raw = file.raw();
+ let wast = file.wast()?;
+ let directives = wast.directives()?;
+
+ let mut store = Store::default();
+ let mut module_registry = ModuleRegistry::default();
+
+ println!("running {} tests for group: {}", directives.len(), file.name());
+ for (i, directive) in directives.into_iter().enumerate() {
+ let span = directive.span();
+ use wast::WastDirective::{
+ AssertExhaustion, AssertInvalid, AssertMalformed, AssertReturn, AssertTrap, AssertUnlinkable, Invoke,
+ Module as Wat, Register,
+ };
+
+ match directive {
+ Register { span, name, .. } => {
+ let Some(last) = module_registry.last() else {
+ test_group.add_result(
+ &format!("Register({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("no module to register")),
+ );
+ continue;
+ };
+ module_registry.register(name.to_string(), last);
+ test_group.add_result(&format!("Register({i})"), span.linecol_in(wast_raw), Ok(()));
+ }
+ Wat(module) => {
+ let result = catch_unwind_silent(|| {
+ let (name, bytes) = encode_quote_wat(module);
+ let module = parse_module_bytes(&bytes).expect("failed to parse module bytes");
+ let imports = Self::imports(&mut store, module_registry.modules()).unwrap();
+ let module_instance = ModuleInstance::instantiate(&mut store, &module, Some(imports))
+ .expect("failed to instantiate module");
+ (name, module_instance)
+ })
+ .map_err(|e| eyre!("failed to parse wat module: {}", try_downcast_panic(e)));
+
+ match &result {
+ Err(err) => debug!("failed to parse module: {err:?}"),
+ Ok((name, module)) => module_registry.update_last_module(module.clone(), name.clone()),
+ };
+
+ test_group.add_result(&format!("Wat({i})"), span.linecol_in(wast_raw), result.map(|_| ()));
+ }
+ AssertMalformed { span, mut module, message } => {
+ let Ok(encoded) = module.encode() else {
+ test_group.add_result(&format!("AssertMalformed({i})"), span.linecol_in(wast_raw), Ok(()));
+ continue;
+ };
+ let res = catch_unwind_silent(|| parse_module_bytes(&encoded))
+ .map_err(|e| eyre!("failed to parse module (expected): {}", try_downcast_panic(e)))
+ .and_then(|res| res);
+ test_group.add_result(
+ &format!("AssertMalformed({i})"),
+ span.linecol_in(wast_raw),
+ match res {
+ Ok(_) => {
+ if message == "zero byte expected"
+ || message == "integer representation too long"
+ || message == "zero flag expected"
+ {
+ continue;
+ }
+ Err(eyre!("expected module to be malformed: {message}"))
+ }
+ Err(_) => Ok(()),
+ },
+ );
+ }
+ AssertInvalid { span, mut module, message } => {
+ if ["multiple memories", "type mismatch"].contains(&message) {
+ test_group.add_result(&format!("AssertInvalid({i})"), span.linecol_in(wast_raw), Ok(()));
+ continue;
+ }
+ let res = catch_unwind_silent(move || parse_module_bytes(&module.encode().unwrap()))
+ .map_err(|e| eyre!("failed to parse module (invalid): {}", try_downcast_panic(e)))
+ .and_then(|res| res);
+ test_group.add_result(
+ &format!("AssertInvalid({i})"),
+ span.linecol_in(wast_raw),
+ match res {
+ Ok(_) => Err(eyre!("expected module to be invalid")),
+ Err(_) => Ok(()),
+ },
+ );
+ }
+ AssertExhaustion { call, message, span } => {
+ let module = module_registry.get_idx(call.module);
+ let args = convert_wastargs(call.args)?;
+ let res =
+ catch_unwind_silent(|| exec_fn_instance(module, &mut store, call.name, &args).map(|_| ()));
+ let Ok(Err(tinywasm::Error::Trap(trap))) = res else {
+ test_group.add_result(
+ &format!("AssertExhaustion({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected trap")),
+ );
+ continue;
+ };
+ if !message.starts_with(trap.message()) && !trap.message().starts_with(message) {
+ test_group.add_result(
+ &format!("AssertExhaustion({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected trap: {}, got: {}", message, trap.message())),
+ );
+ continue;
+ }
+ test_group.add_result(&format!("AssertExhaustion({i})"), span.linecol_in(wast_raw), Ok(()));
+ }
+ AssertTrap { exec, message, span } => {
+ let res: Result<tinywasm::Result<()>, _> = catch_unwind_silent(|| {
+ let invoke = match exec {
+ wast::WastExecute::Wat(mut wat) => {
+ let module = parse_module_bytes(&wat.encode().expect("failed to encode module"))
+ .expect("failed to parse module");
+ let imports = Self::imports(&mut store, module_registry.modules()).unwrap();
+ ModuleInstance::instantiate(&mut store, &module, Some(imports))?;
+ return Ok(());
+ }
+ wast::WastExecute::Get { .. } => panic!("get not supported"),
+ wast::WastExecute::Invoke(invoke) => invoke,
+ };
+ let module = module_registry.get_idx(invoke.module);
+ let args =
+ convert_wastargs(invoke.args).map_err(|err| tinywasm::Error::Other(err.to_string()))?;
+ exec_fn_instance(module, &mut store, invoke.name, &args).map(|_| ())
+ });
+ match res {
+ Err(err) => test_group.add_result(
+ &format!("AssertTrap({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("test panicked: {}", try_downcast_panic(err))),
+ ),
+ Ok(Err(tinywasm::Error::Trap(trap))) => {
+ if !message.starts_with(trap.message()) && !trap.message().starts_with(message) {
+ test_group.add_result(
+ &format!("AssertTrap({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected trap: {}, got: {}", message, trap.message())),
+ );
+ continue;
+ }
+ test_group.add_result(&format!("AssertTrap({i})"), span.linecol_in(wast_raw), Ok(()));
+ }
+ Ok(Err(err)) => test_group.add_result(
+ &format!("AssertTrap({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected trap, {}, got: {:?}", message, err)),
+ ),
+ Ok(Ok(())) => test_group.add_result(
+ &format!("AssertTrap({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected trap {}, got Ok", message)),
+ ),
+ }
+ }
+ AssertUnlinkable { mut module, span, message } => {
+ let res = catch_unwind_silent(|| {
+ let module = parse_module_bytes(&module.encode().expect("failed to encode module"))
+ .expect("failed to parse module");
+ let imports = Self::imports(&mut store, module_registry.modules()).unwrap();
+ ModuleInstance::instantiate(&mut store, &module, Some(imports))
+ });
+ match res {
+ Err(err) => test_group.add_result(
+ &format!("AssertUnlinkable({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("test panicked: {}", try_downcast_panic(err))),
+ ),
+ Ok(Err(tinywasm::Error::Linker(err))) => {
+ if err.message() != message
+ && (err.message() == "memory types incompatible"
+ && message != "incompatible import type")
+ {
+ test_group.add_result(
+ &format!("AssertUnlinkable({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected linker error: {}, got: {}", message, err.message())),
+ );
+ continue;
+ }
+ test_group.add_result(&format!("AssertUnlinkable({i})"), span.linecol_in(wast_raw), Ok(()));
+ }
+ Ok(Err(err)) => test_group.add_result(
+ &format!("AssertUnlinkable({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected linker error, {}, got: {:?}", message, err)),
+ ),
+ Ok(Ok(_)) => test_group.add_result(
+ &format!("AssertUnlinkable({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("expected linker error {}, got Ok", message)),
+ ),
+ }
+ }
+ Invoke(invoke) => {
+ let name = invoke.name;
+ let res: Result<Result<()>, _> = catch_unwind_silent(|| {
+ let args = convert_wastargs(invoke.args)?;
+ let module = module_registry.get_idx(invoke.module);
+ exec_fn_instance(module, &mut store, invoke.name, &args).map_err(|e| {
+ error!("failed to execute function: {e:?}");
+ e
+ })?;
+ Ok(())
+ });
+ let res = res.map_err(|e| eyre!("test panicked: {}", try_downcast_panic(e))).and_then(|r| r);
+ test_group.add_result(&format!("Invoke({name}-{i})"), span.linecol_in(wast_raw), res);
+ }
+ AssertReturn { span, exec, results } => {
+ let expected_alternatives = match convert_wastret(results.into_iter()) {
+ Err(err) => {
+ test_group.add_result(
+ &format!("AssertReturn(unsupported-{i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("failed to convert expected results: {err:?}")),
+ );
+ continue;
+ }
+ Ok(expected) => expected,
+ };
+
+ let invoke = match match exec {
+ wast::WastExecute::Wat(_) => Err(eyre!("wat not supported")),
+ wast::WastExecute::Get { module: module_id, global, .. } => {
+ let Some(module) = module_registry.get(module_id) else {
+ test_group.add_result(
+ &format!("AssertReturn(unsupported-{i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("no module to get global from")),
+ );
+ continue;
+ };
+ let module_global = match module.global_get(&store, global) {
+ Ok(value) => value,
+ Err(err) => {
+ test_group.add_result(
+ &format!("AssertReturn(unsupported-{i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("failed to get global: {err:?}")),
+ );
+ continue;
+ }
+ };
+ let expected = expected_alternatives
+ .iter()
+ .filter_map(|alts| alts.first())
+ .find(|exp| module_global.eq_loose(exp));
+ if expected.is_none() {
+ test_group.add_result(
+ &format!("AssertReturn(unsupported-{i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!(
+ "global value did not match any expected alternative: {:?}",
+ module_global
+ )),
+ );
+ continue;
+ }
+ test_group.add_result(
+ &format!("AssertReturn({global}-{i})"),
+ span.linecol_in(wast_raw),
+ Ok(()),
+ );
+ continue;
+ }
+ wast::WastExecute::Invoke(invoke) => Ok(invoke),
+ } {
+ Ok(invoke) => invoke,
+ Err(err) => {
+ test_group.add_result(
+ &format!("AssertReturn(unsupported-{i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("unsupported directive: {err:?}")),
+ );
+ continue;
+ }
+ };
+
+ let invoke_name = invoke.name;
+ let res: Result<Result<()>, _> = catch_unwind_silent(|| {
+ let args = convert_wastargs(invoke.args)?;
+ let module = module_registry.get_idx(invoke.module);
+ let outcomes = exec_fn_instance(module, &mut store, invoke.name, &args).map_err(|e| {
+ error!("failed to execute function: {e:?}");
+ e
+ })?;
+ if !expected_alternatives.iter().any(|expected| expected.len() == outcomes.len()) {
+ return Err(eyre!(
+ "expected {} results, got {}",
+ expected_alternatives.first().map_or(0, |v| v.len()),
+ outcomes.len()
+ ));
+ }
+ if expected_alternatives.iter().any(|expected| {
+ expected.len() == outcomes.len()
+ && outcomes.iter().zip(expected.iter()).all(|(outcome, exp)| outcome.eq_loose(exp))
+ }) {
+ Ok(())
+ } else {
+ Err(eyre!("results did not match any expected alternative"))
+ }
+ });
+
+ let res = res.map_err(|e| eyre!("test panicked: {}", try_downcast_panic(e))).and_then(|r| r);
+ test_group.add_result(&format!("AssertReturn({invoke_name}-{i})"), span.linecol_in(wast_raw), res);
+ }
+ _ => test_group.add_result(
+ &format!("Unknown({i})"),
+ span.linecol_in(wast_raw),
+ Err(eyre!("unsupported directive")),
+ ),
+ }
+ }
+
+ Ok(())
+ }
+}
+
+impl Display for WastRunner {
+ fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+ use owo_colors::OwoColorize;
+
+ let mut total_passed = 0;
+ let mut total_failed = 0;
+
+ for group in self.group_results() {
+ total_passed += group.passed;
+ total_failed += group.failed;
+
+ writeln!(f, "{}", group.name.bold().underline())?;
+ writeln!(f, " Tests Passed: {}", group.passed.to_string().green())?;
+ if group.failed != 0 {
+ writeln!(f, " Tests Failed: {}", group.failed.to_string().red())?;
+ }
+ }
+
+ writeln!(f, "\n{}", "Total Test Summary:".bold().underline())?;
+ writeln!(f, " Total Tests: {}", total_passed + total_failed)?;
+ writeln!(f, " Total Passed: {}", total_passed.to_string().green())?;
+ writeln!(f, " Total Failed: {}", total_failed.to_string().red())?;
+ Ok(())
+ }
+}
+
+#[derive(Debug)]
+struct TestGroup {
+ tests: Vec<TestCase>,
+ file: String,
+}
+
+impl TestGroup {
+ fn new(file: &str) -> Self {
+ Self { tests: Vec::new(), file: file.to_string() }
+ }
+
+ fn stats(&self) -> (usize, usize) {
+ let mut passed = 0;
+ let mut failed = 0;
+ for test in &self.tests {
+ match test.result {
+ Ok(()) => passed += 1,
+ Err(_) => failed += 1,
+ }
+ }
+ (passed, failed)
+ }
+
+ fn add_result(&mut self, name: &str, linecol: (usize, usize), result: Result<()>) {
+ self.tests.push(TestCase { name: name.to_string(), linecol, result });
+ }
+}
+
+#[derive(Debug)]
+struct TestCase {
+ name: String,
+ linecol: (usize, usize),
+ result: Result<()>,
+}
+
+fn expand_paths(paths: &[PathBuf]) -> Result<Vec<PathBuf>> {
+ let mut files = Vec::new();
+ for path in paths {
+ if path.is_dir() {
+ for entry in std::fs::read_dir(path)? {
+ let entry = entry?;
+ let path = entry.path();
+ if path.extension().is_some_and(|ext| ext == "wast") {
+ files.push(path);
+ }
+ }
+ } else {
+ files.push(path.clone());
+ }
+ }
+ files.sort();
+ Ok(files)
+}
+
+#[derive(Debug)]
+pub struct TestFile<'a> {
+ pub name: String,
+ pub contents: &'a str,
+ pub parent: String,
+}
+
+impl<'a> TestFile<'a> {
+ pub fn name(&self) -> &str {
+ &self.name
+ }
+
+ pub fn raw(&self) -> &'a str {
+ self.contents
+ }
+
+ pub fn parent(&self) -> &str {
+ &self.parent
+ }
+
+ pub fn wast(&self) -> wast::parser::Result<WastBuffer<'a>> {
+ let mut lexer = wast::lexer::Lexer::new(self.contents);
+ lexer.allow_confusing_unicode(true);
+ let parse_buffer = wast::parser::ParseBuffer::new_with_lexer(lexer)?;
+ Ok(WastBuffer { buffer: parse_buffer })
+ }
+}
+
+pub struct WastBuffer<'a> {
+ buffer: wast::parser::ParseBuffer<'a>,
+}
+
+impl<'a> WastBuffer<'a> {
+ pub fn directives(&'a self) -> wast::parser::Result<Vec<wast::WastDirective<'a>>> {
+ Ok(wast::parser::parse::<wast::Wast<'a>>(&self.buffer)?.directives)
+ }
+}
+
+fn exec_with_budget(
+ func: &tinywasm::Function,
+ store: &mut Store,
+ args: &[WasmValue],
+) -> Result<Vec<WasmValue>, tinywasm::Error> {
+ let mut exec = func.call_resumable(store, args)?;
+ for _ in 0..TEST_MAX_SUSPENSIONS {
+ match exec.resume_with_time_budget(TEST_TIME_SLICE)? {
+ ExecProgress::Completed(values) => return Ok(values),
+ ExecProgress::Suspended => {}
+ }
+ }
+ Err(tinywasm::Error::Other(format!(
+ "testsuite execution timed out after {} time slices of {:?}",
+ TEST_MAX_SUSPENSIONS, TEST_TIME_SLICE
+ )))
+}
+
+fn try_downcast_panic(panic: Box<dyn std::any::Any + Send>) -> String {
+ let info = panic.downcast_ref::<panic::PanicHookInfo>().map(ToString::to_string);
+ let info_string = panic.downcast_ref::<String>().cloned();
+ let info_str = panic.downcast::<&str>().ok().map(|s| *s);
+ info.unwrap_or_else(|| info_str.unwrap_or(&info_string.unwrap_or("unknown panic".to_owned())).to_string())
+}
+
+fn exec_fn_instance(
+ instance: Option<u32>,
+ store: &mut Store,
+ name: &str,
+ args: &[WasmValue],
+) -> Result<Vec<WasmValue>, tinywasm::Error> {
+ let Some(instance) = instance else {
+ return Err(tinywasm::Error::Other("no instance found".to_string()));
+ };
+ let Some(instance) = store.get_module_instance(instance) else {
+ return Err(tinywasm::Error::Other("no instance found".to_string()));
+ };
+ let func = instance.func_untyped(store, name)?;
+ exec_with_budget(&func, store, args)
+}
+
+fn catch_unwind_silent<R>(f: impl FnOnce() -> R) -> std::thread::Result<R> {
+ let prev_hook = panic::take_hook();
+ panic::set_hook(Box::new(|_| {}));
+ let result = panic::catch_unwind(AssertUnwindSafe(f));
+ panic::set_hook(prev_hook);
+ result
+}
+
+fn encode_quote_wat(module: QuoteWat) -> (Option<String>, Vec<u8>) {
+ match module {
+ QuoteWat::QuoteModule(_, quoted_wat) => {
+ let wat = quoted_wat
+ .iter()
+ .map(|(_, s)| std::str::from_utf8(s).expect("failed to convert wast to utf8"))
+ .collect::<Vec<_>>()
+ .join("\n");
+ let lexer = wast::lexer::Lexer::new(&wat);
+ let buf = wast::parser::ParseBuffer::new_with_lexer(lexer).expect("failed to create parse buffer");
+ let mut wat_data = wast::parser::parse::<wast::Wat>(&buf).expect("failed to parse wat");
+ (None, wat_data.encode().expect("failed to encode module"))
+ }
+ QuoteWat::Wat(mut wat) => {
+ let wast::Wat::Module(ref module) = wat else { unimplemented!("Not supported") };
+ (module.id.map(|id| id.name().to_string()), wat.encode().expect("failed to encode module"))
+ }
+ QuoteWat::QuoteComponent(..) => unimplemented!("components are not supported"),
+ }
+}
+
+fn parse_module_bytes(bytes: &[u8]) -> Result<Module> {
+ Ok(tinywasm::parse_bytes(bytes)?)
+}
+
+fn convert_wastargs(args: Vec<wast::WastArg>) -> Result<Vec<WasmValue>> {
+ args.into_iter().map(wastarg2tinywasmvalue).collect()
+}
+
+fn convert_wastret<'a>(args: impl Iterator<Item = wast::WastRet<'a>>) -> Result<Vec<Vec<WasmValue>>> {
+ let mut alternatives = vec![Vec::new()];
+ for arg in args {
+ let choices = wastret2tinywasmvalues(arg)?;
+ let mut next = Vec::with_capacity(alternatives.len() * choices.len());
+ for prefix in alternatives {
+ for choice in &choices {
+ let mut candidate = prefix.clone();
+ candidate.push(*choice);
+ next.push(candidate);
+ }
+ }
+ alternatives = next;
+ }
+ Ok(alternatives)
+}
+
+fn wastarg2tinywasmvalue(arg: wast::WastArg) -> Result<WasmValue> {
+ let wast::WastArg::Core(arg) = arg else { bail!("unsupported arg type: Component") };
+ use wast::core::WastArgCore::*;
+ Ok(match arg {
+ F32(f) => WasmValue::F32(f32::from_bits(f.bits)),
+ F64(f) => WasmValue::F64(f64::from_bits(f.bits)),
+ I32(i) => WasmValue::I32(i),
+ I64(i) => WasmValue::I64(i),
+ V128(i) => WasmValue::V128(i128::from_le_bytes(i.to_le_bytes())),
+ RefExtern(v) => WasmValue::RefExtern(ExternRef::new(Some(v))),
+ RefNull(t) => match t {
+ wast::core::HeapType::Abstract { shared: false, ty: AbstractHeapType::Func } => {
+ WasmValue::RefFunc(FuncRef::null())
+ }
+ wast::core::HeapType::Abstract { shared: false, ty: AbstractHeapType::Extern } => {
+ WasmValue::RefExtern(ExternRef::null())
+ }
+ _ => bail!("unsupported arg type: refnull: {:?}", t),
+ },
+ RefHost(_) => bail!("unsupported arg type: RefHost"),
+ })
+}
+
+fn wast_i128_to_i128(i: wast::core::V128Pattern) -> i128 {
+ let res: Vec<u8> = match i {
+ wast::core::V128Pattern::F32x4(f) => {
+ f.iter().flat_map(|v| nanpattern2tinywasmvalue(*v).unwrap().as_f32().unwrap().to_le_bytes()).collect()
+ }
+ wast::core::V128Pattern::F64x2(f) => {
+ f.iter().flat_map(|v| nanpattern2tinywasmvalue(*v).unwrap().as_f64().unwrap().to_le_bytes()).collect()
+ }
+ wast::core::V128Pattern::I16x8(f) => f.iter().flat_map(|v| v.to_le_bytes()).collect(),
+ wast::core::V128Pattern::I32x4(f) => f.iter().flat_map(|v| v.to_le_bytes()).collect(),
+ wast::core::V128Pattern::I64x2(f) => f.iter().flat_map(|v| v.to_le_bytes()).collect(),
+ wast::core::V128Pattern::I8x16(f) => f.iter().flat_map(|v| v.to_le_bytes()).collect(),
+ };
+ i128::from_le_bytes(res.try_into().unwrap())
+}
+
+fn wastret2tinywasmvalues(ret: wast::WastRet) -> Result<Vec<WasmValue>> {
+ let wast::WastRet::Core(ret) = ret else { bail!("unsupported arg type") };
+ match ret {
+ wast::core::WastRetCore::Either(options) => {
+ options.into_iter().map(wastretcore2tinywasmvalue).collect::<Result<Vec<_>>>()
+ }
+ ret => Ok(vec![wastretcore2tinywasmvalue(ret)?]),
+ }
+}
+
+fn wastretcore2tinywasmvalue(ret: wast::core::WastRetCore) -> Result<WasmValue> {
+ use wast::core::WastRetCore::{F32, F64, I32, I64, RefExtern, RefFunc, RefNull, V128};
+ Ok(match ret {
+ F32(f) => nanpattern2tinywasmvalue(f)?,
+ F64(f) => nanpattern2tinywasmvalue(f)?,
+ I32(i) => WasmValue::I32(i),
+ I64(i) => WasmValue::I64(i),
+ V128(i) => WasmValue::V128(wast_i128_to_i128(i)),
+ RefNull(t) => match t {
+ Some(wast::core::HeapType::Abstract { shared: false, ty: AbstractHeapType::Func }) => {
+ WasmValue::RefFunc(FuncRef::null())
+ }
+ Some(wast::core::HeapType::Abstract { shared: false, ty: AbstractHeapType::Extern }) => {
+ WasmValue::RefExtern(ExternRef::null())
+ }
+ _ => bail!("unsupported arg type: refnull: {:?}", t),
+ },
+ RefExtern(v) => WasmValue::RefExtern(ExternRef::new(v)),
+ RefFunc(v) => WasmValue::RefFunc(FuncRef::new(match v {
+ Some(wast::token::Index::Num(n, _)) => Some(n),
+ _ => bail!("unsupported arg type: reffunc: {:?}", v),
+ })),
+ a => bail!("unsupported arg type {:?}", a),
+ })
+}
+
+enum Bits {
+ U32(u32),
+ U64(u64),
+}
+
+trait FloatToken {
+ fn bits(&self) -> Bits;
+ fn canonical_nan() -> WasmValue;
+ fn arithmetic_nan() -> WasmValue;
+ fn value(&self) -> WasmValue {
+ match self.bits() {
+ Bits::U32(v) => WasmValue::F32(f32::from_bits(v)),
+ Bits::U64(v) => WasmValue::F64(f64::from_bits(v)),
+ }
+ }
+}
+
+impl FloatToken for wast::token::F32 {
+ fn bits(&self) -> Bits {
+ Bits::U32(self.bits)
+ }
+ fn canonical_nan() -> WasmValue {
+ WasmValue::F32(f32::NAN)
+ }
+ fn arithmetic_nan() -> WasmValue {
+ WasmValue::F32(f32::NAN)
+ }
+}
+
+impl FloatToken for wast::token::F64 {
+ fn bits(&self) -> Bits {
+ Bits::U64(self.bits)
+ }
+ fn canonical_nan() -> WasmValue {
+ WasmValue::F64(f64::NAN)
+ }
+ fn arithmetic_nan() -> WasmValue {
+ WasmValue::F64(f64::NAN)
+ }
+}
+
+fn nanpattern2tinywasmvalue<T>(arg: wast::core::NanPattern<T>) -> Result<WasmValue>
+where
+ T: FloatToken,
+{
+ use wast::core::NanPattern::{ArithmeticNan, CanonicalNan, Value};
+ Ok(match arg {
+ CanonicalNan => T::canonical_nan(),
+ ArithmeticNan => T::arithmetic_nan(),
+ Value(v) => v.value(),
+ })
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn runs_simple_wast_file() {
+ let dir = tempfile::tempdir().unwrap();
+ let path = dir.path().join("simple.wast");
+ std::fs::write(
+ &path,
+ "(module (func (export \"add\") (result i32) i32.const 1))\n(assert_return (invoke \"add\") (i32.const 1))",
+ )
+ .unwrap();
+
+ let mut runner = WastRunner::new();
+ runner.run_paths(&[path]).unwrap();
+ }
+}
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-03 12:54:59 +0000