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denoland-rusty-v8/tests/test_api.rs
2020-01-02 13:57:00 -05:00

1944 lines
60 KiB
Rust

// Copyright 2019-2020 the Deno authors. All rights reserved. MIT license.
#[macro_use]
extern crate lazy_static;
use rusty_v8 as v8;
use rusty_v8::{new_null, FunctionCallbackInfo, InIsolate, Local, ToLocal};
use std::convert::Into;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::Mutex;
lazy_static! {
static ref INIT_LOCK: Mutex<u32> = Mutex::new(0);
}
struct TestGuard {}
impl Drop for TestGuard {
fn drop(&mut self) {
// TODO shutdown process cleanly.
/*
*g -= 1;
if *g == 0 {
unsafe { v8::V8::dispose() };
v8::V8::shutdown_platform();
}
drop(g);
*/
}
}
fn setup() -> TestGuard {
let mut g = INIT_LOCK.lock().unwrap();
*g += 1;
if *g == 1 {
v8::V8::initialize_platform(v8::platform::new_default_platform());
v8::V8::initialize();
}
drop(g);
TestGuard {}
}
#[test]
fn handle_scope_nested() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope1 = hs.enter();
{
let mut hs = v8::HandleScope::new(scope1);
let _scope2 = hs.enter();
}
}
drop(locker);
drop(g);
}
#[test]
#[allow(clippy::float_cmp)]
fn handle_scope_numbers() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope1 = hs.enter();
let l1 = v8::Integer::new(scope1, -123);
let l2 = v8::Integer::new_from_unsigned(scope1, 456);
{
let mut hs = v8::HandleScope::new(scope1);
let scope2 = hs.enter();
let l3 = v8::Number::new(scope2, 78.9);
assert_eq!(l1.value(), -123);
assert_eq!(l2.value(), 456);
assert_eq!(l3.value(), 78.9);
assert_eq!(v8::Number::value(&l1), -123f64);
assert_eq!(v8::Number::value(&l2), 456f64);
}
}
drop(locker);
drop(g);
}
#[test]
fn global_handles() {
let _g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
let mut g1 = v8::Global::<v8::String>::new();
let mut g2 = v8::Global::<v8::Integer>::new();
let mut g3 = v8::Global::<v8::Integer>::new();
let mut _g4 = v8::Global::<v8::Integer>::new();
let g5 = v8::Global::<v8::Script>::new();
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let l1 = v8::String::new(scope, "bla").unwrap();
let l2 = v8::Integer::new(scope, 123);
g1.set(scope, l1);
g2.set(scope, l2);
g3.set(scope, &g2);
_g4 = v8::Global::new_from(scope, l2);
}
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
assert!(!g1.is_empty());
assert_eq!(g1.get(scope).unwrap().to_rust_string_lossy(scope), "bla");
assert!(!g2.is_empty());
assert_eq!(g2.get(scope).unwrap().value(), 123);
assert!(!g3.is_empty());
assert_eq!(g3.get(scope).unwrap().value(), 123);
assert!(!_g4.is_empty());
assert_eq!(_g4.get(scope).unwrap().value(), 123);
assert!(g5.is_empty());
}
g1.reset(&mut locker);
assert!(g1.is_empty());
g2.reset(&mut locker);
assert!(g2.is_empty());
g3.reset(&mut locker);
assert!(g3.is_empty());
_g4.reset(&mut locker);
assert!(_g4.is_empty());
assert!(g5.is_empty());
}
#[test]
fn test_string() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let reference = "Hello 🦕 world!";
let local = v8::String::new(scope, reference).unwrap();
assert_eq!(15, local.length());
assert_eq!(17, local.utf8_length(scope));
assert_eq!(reference, local.to_rust_string_lossy(scope));
}
drop(locker);
}
#[test]
#[allow(clippy::float_cmp)]
fn escapable_handle_scope() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
isolate.enter();
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope1 = hs.enter();
// After dropping EscapableHandleScope, we should be able to
// read escaped values.
let number = {
let mut hs = v8::EscapableHandleScope::new(scope1);
let escapable_scope = hs.enter();
let number = v8::Number::new(escapable_scope, 78.9);
escapable_scope.escape(number)
};
assert_eq!(number.value(), 78.9);
let string = {
let mut hs = v8::EscapableHandleScope::new(scope1);
let escapable_scope = hs.enter();
let string = v8::String::new(escapable_scope, "Hello 🦕 world!").unwrap();
escapable_scope.escape(string)
};
assert_eq!("Hello 🦕 world!", string.to_rust_string_lossy(scope1));
let string = {
let mut hs = v8::EscapableHandleScope::new(scope1);
let escapable_scope = hs.enter();
let nested_str_val = {
let mut hs = v8::EscapableHandleScope::new(escapable_scope);
let nested_escapable_scope = hs.enter();
let string =
v8::String::new(nested_escapable_scope, "Hello 🦕 world!").unwrap();
nested_escapable_scope.escape(string)
};
escapable_scope.escape(nested_str_val)
};
assert_eq!("Hello 🦕 world!", string.to_rust_string_lossy(scope1));
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn microtasks() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
isolate.run_microtasks();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
static CALL_COUNT: AtomicUsize = AtomicUsize::new(0);
extern "C" fn cb(_info: &FunctionCallbackInfo) {
CALL_COUNT.fetch_add(1, Ordering::SeqCst);
}
let function = v8::Function::new(scope, context, cb).unwrap();
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 0);
isolate.enqueue_microtask(function);
isolate.run_microtasks();
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 1);
context.exit();
}
}
#[test]
fn array_buffer() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let ab = v8::ArrayBuffer::new(scope, 42);
assert_eq!(42, ab.byte_length());
let bs = v8::ArrayBuffer::new_backing_store(scope, 84);
assert_eq!(84, bs.byte_length());
assert_eq!(false, bs.is_shared());
context.exit();
}
drop(locker);
}
#[test]
fn array_buffer_with_shared_backing_store() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let ab1 = v8::ArrayBuffer::new(scope, 42);
assert_eq!(42, ab1.byte_length());
let bs1 = ab1.get_backing_store();
assert_eq!(ab1.byte_length(), bs1.byte_length());
assert_eq!(2, v8::SharedRef::use_count(&bs1));
let bs2 = ab1.get_backing_store();
assert_eq!(ab1.byte_length(), bs2.byte_length());
assert_eq!(3, v8::SharedRef::use_count(&bs1));
assert_eq!(3, v8::SharedRef::use_count(&bs2));
let mut bs3 = ab1.get_backing_store();
assert_eq!(ab1.byte_length(), bs3.byte_length());
assert_eq!(4, v8::SharedRef::use_count(&bs1));
assert_eq!(4, v8::SharedRef::use_count(&bs2));
assert_eq!(4, v8::SharedRef::use_count(&bs3));
drop(bs2);
assert_eq!(3, v8::SharedRef::use_count(&bs1));
assert_eq!(3, v8::SharedRef::use_count(&bs3));
drop(bs1);
assert_eq!(2, v8::SharedRef::use_count(&bs3));
let ab2 = v8::ArrayBuffer::new_with_backing_store(scope, &mut bs3);
assert_eq!(ab1.byte_length(), ab2.byte_length());
assert_eq!(3, v8::SharedRef::use_count(&bs3));
let bs4 = ab2.get_backing_store();
assert_eq!(ab2.byte_length(), bs4.byte_length());
assert_eq!(4, v8::SharedRef::use_count(&bs4));
assert_eq!(4, v8::SharedRef::use_count(&bs3));
drop(bs3);
assert_eq!(3, v8::SharedRef::use_count(&bs4));
context.exit();
}
}
fn v8_str<'sc>(
scope: &mut impl v8::ToLocal<'sc>,
s: &str,
) -> v8::Local<'sc, v8::String> {
v8::String::new(scope, s).unwrap()
}
fn eval<'sc>(
scope: &mut impl v8::InIsolate,
context: Local<v8::Context>,
code: &'static str,
) -> Option<Local<'sc, v8::Value>> {
let mut hs = v8::EscapableHandleScope::new(scope);
let scope = hs.enter();
let source = v8_str(scope, code);
let mut script =
v8::Script::compile(&mut *scope, context, source, None).unwrap();
let r = script.run(scope, context);
r.map(|v| scope.escape(v))
}
#[test]
fn try_catch() {
let _g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
{
// Error thrown - should be caught.
let mut try_catch = v8::TryCatch::new(scope);
let tc = try_catch.enter();
let result = eval(scope, context, "throw new Error('foo')");
assert!(result.is_none());
assert!(tc.has_caught());
assert!(tc.exception().is_some());
assert!(tc.stack_trace(scope, context).is_some());
assert!(tc.message().is_some());
assert_eq!(
tc.message().unwrap().get(scope).to_rust_string_lossy(scope),
"Uncaught Error: foo"
);
};
{
// No error thrown.
let mut try_catch = v8::TryCatch::new(scope);
let tc = try_catch.enter();
let result = eval(scope, context, "1 + 1");
assert!(result.is_some());
assert!(!tc.has_caught());
assert!(tc.exception().is_none());
assert!(tc.stack_trace(scope, context).is_none());
assert!(tc.message().is_none());
assert!(tc.rethrow().is_none());
};
{
// Rethrow and reset.
let mut try_catch_1 = v8::TryCatch::new(scope);
let tc1 = try_catch_1.enter();
{
let mut try_catch_2 = v8::TryCatch::new(scope);
let tc2 = try_catch_2.enter();
eval(scope, context, "throw 'bar'");
assert!(tc2.has_caught());
assert!(tc2.rethrow().is_some());
tc2.reset();
assert!(!tc2.has_caught());
}
assert!(tc1.has_caught());
};
context.exit();
}
}
#[test]
fn throw_exception() {
let _g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
{
let mut try_catch = v8::TryCatch::new(scope);
let tc = try_catch.enter();
isolate.throw_exception(v8_str(scope, "boom").into());
assert!(tc.has_caught());
assert!(tc
.exception()
.unwrap()
.strict_equals(v8_str(scope, "boom").into()));
};
context.exit();
}
}
#[test]
fn terminate_execution() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
// Originally run fine.
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let result = eval(scope, context, "true").unwrap();
let true_val = v8::new_true(scope).into();
assert!(result.same_value(true_val));
context.exit();
}
// Terminate.
isolate.terminate_execution();
// Below run should fail with terminated knowledge.
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let mut try_catch = v8::TryCatch::new(scope);
let tc = try_catch.enter();
let _ = eval(scope, context, "true");
assert!(tc.has_caught());
assert!(tc.has_terminated());
context.exit();
}
// Cancel termination.
isolate.cancel_terminate_execution();
// Works again.
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let result = eval(scope, context, "true").unwrap();
let true_val = v8::new_true(scope).into();
assert!(result.same_value(true_val));
context.exit();
}
drop(locker);
drop(g);
}
#[test]
fn add_message_listener() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.set_capture_stack_trace_for_uncaught_exceptions(true, 32);
static CALL_COUNT: AtomicUsize = AtomicUsize::new(0);
extern "C" fn check_message_0(
mut message: Local<v8::Message>,
_exception: Local<v8::Value>,
) {
let isolate = message.get_isolate();
let context = isolate.get_current_context();
let mut cbs = v8::CallbackScope::new(message);
let scope = cbs.enter();
let mut hs = v8::HandleScope::new(scope);
let scope = hs.enter();
let message_str = message.get(scope);
assert_eq!(message_str.to_rust_string_lossy(scope), "Uncaught foo");
assert_eq!(Some(1), message.get_line_number(context));
assert!(message.get_script_resource_name(scope).is_some());
assert!(message.get_source_line(scope, context).is_some());
assert_eq!(message.get_start_position(), 0);
assert_eq!(message.get_end_position(), 1);
assert_eq!(message.get_wasm_function_index(), -1);
assert!(message.error_level() >= 0);
assert_eq!(message.get_start_column(), 0);
assert_eq!(message.get_end_column(), 1);
assert!(!message.is_shared_cross_origin());
assert!(!message.is_opaque());
let stack_trace = message.get_stack_trace(scope).unwrap();
assert_eq!(1, stack_trace.get_frame_count());
let frame = stack_trace.get_frame(scope, 0).unwrap();
assert_eq!(1, frame.get_line_number());
assert_eq!(1, frame.get_column());
assert_eq!(3, frame.get_script_id());
assert!(frame.get_script_name(scope).is_none());
assert!(frame.get_script_name_or_source_url(scope).is_none());
assert!(frame.get_function_name(scope).is_none());
assert_eq!(false, frame.is_eval());
assert_eq!(false, frame.is_constructor());
assert_eq!(false, frame.is_wasm());
assert_eq!(true, frame.is_user_javascript());
CALL_COUNT.fetch_add(1, Ordering::SeqCst);
}
isolate.add_message_listener(check_message_0);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let source = v8::String::new(s, "throw 'foo'").unwrap();
let mut script = v8::Script::compile(s, context, source, None).unwrap();
assert!(script.run(s, context).is_none());
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 1);
context.exit();
}
drop(locker);
drop(g);
}
fn unexpected_module_resolve_callback(
_context: v8::Local<v8::Context>,
_specifier: v8::Local<v8::String>,
_referrer: v8::Local<v8::Module>,
) -> *mut v8::Module {
unreachable!()
}
#[test]
fn set_host_initialize_import_meta_object_callback() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
static CALL_COUNT: AtomicUsize = AtomicUsize::new(0);
extern "C" fn callback(
context: Local<v8::Context>,
_module: Local<v8::Module>,
meta: Local<v8::Object>,
) {
CALL_COUNT.fetch_add(1, Ordering::SeqCst);
let mut cbs = v8::CallbackScope::new(context);
let mut hs = v8::HandleScope::new(cbs.enter());
let scope = hs.enter();
let key = v8::String::new(scope, "foo").unwrap();
let value = v8::String::new(scope, "bar").unwrap();
meta.create_data_property(context, key.into(), value.into());
}
isolate.set_host_initialize_import_meta_object_callback(callback);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let source = mock_source(s, "google.com", "import.meta;");
let mut module =
v8::script_compiler::compile_module(&isolate, source).unwrap();
let result =
module.instantiate_module(context, unexpected_module_resolve_callback);
assert!(result.is_some());
let meta = module.evaluate(s, context).unwrap();
assert!(meta.is_object());
let meta = meta.to_object(s).unwrap();
let key = v8::String::new(s, "foo").unwrap();
let expected = v8::String::new(s, "bar").unwrap();
let actual = meta.get(s, context, key.into()).unwrap();
assert!(expected.strict_equals(actual));
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 1);
context.exit();
}
drop(locker);
drop(g);
}
#[test]
fn script_compile_and_run() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let source = v8::String::new(s, "'Hello ' + 13 + 'th planet'").unwrap();
let mut script = v8::Script::compile(s, context, source, None).unwrap();
source.to_rust_string_lossy(s);
let result = script.run(s, context).unwrap();
let result = result.to_string(s).unwrap();
assert_eq!(result.to_rust_string_lossy(s), "Hello 13th planet");
context.exit();
}
drop(locker);
}
#[test]
fn script_origin() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let resource_name = v8::String::new(s, "foo.js").unwrap();
let resource_line_offset = v8::Integer::new(s, 4);
let resource_column_offset = v8::Integer::new(s, 5);
let resource_is_shared_cross_origin = v8::new_true(s);
let script_id = v8::Integer::new(s, 123);
let source_map_url = v8::String::new(s, "source_map_url").unwrap();
let resource_is_opaque = v8::new_true(s);
let is_wasm = v8::new_false(s);
let is_module = v8::new_false(s);
let script_origin = v8::ScriptOrigin::new(
resource_name.into(),
resource_line_offset,
resource_column_offset,
resource_is_shared_cross_origin,
script_id,
source_map_url.into(),
resource_is_opaque,
is_wasm,
is_module,
);
let source = v8::String::new(s, "1+2").unwrap();
let mut script =
v8::Script::compile(s, context, source, Some(&script_origin)).unwrap();
source.to_rust_string_lossy(s);
let _result = script.run(s, context).unwrap();
context.exit();
}
drop(locker);
}
#[test]
fn get_version() {
assert!(v8::V8::get_version().len() > 3);
}
#[test]
fn set_flags_from_command_line() {
let r = v8::V8::set_flags_from_command_line(vec![
"binaryname".to_string(),
"--log-colour".to_string(),
"--should-be-ignored".to_string(),
]);
assert_eq!(
r,
vec!["binaryname".to_string(), "--should-be-ignored".to_string()]
);
}
#[test]
fn inspector_string_view() {
let chars = b"Hello world!";
let view = v8::inspector::StringView::from(&chars[..]);
assert_eq!(chars.len(), view.into_iter().len());
assert_eq!(chars.len(), view.len());
for (c1, c2) in chars.iter().copied().map(u16::from).zip(&view) {
assert_eq!(c1, c2);
}
}
#[test]
fn inspector_string_buffer() {
let chars = b"Hello Venus!";
let mut buf = {
let src_view = v8::inspector::StringView::from(&chars[..]);
v8::inspector::StringBuffer::create(&src_view)
};
let view = buf.as_mut().unwrap().string();
assert_eq!(chars.len(), view.into_iter().len());
assert_eq!(chars.len(), view.len());
for (c1, c2) in chars.iter().copied().map(u16::from).zip(view) {
assert_eq!(c1, c2);
}
}
#[test]
fn test_primitives() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let null = v8::new_null(scope);
assert!(!null.is_undefined());
assert!(null.is_null());
assert!(null.is_null_or_undefined());
let undefined = v8::new_undefined(scope);
assert!(undefined.is_undefined());
assert!(!undefined.is_null());
assert!(undefined.is_null_or_undefined());
let true_ = v8::new_true(scope);
assert!(!true_.is_undefined());
assert!(!true_.is_null());
assert!(!true_.is_null_or_undefined());
let false_ = v8::new_false(scope);
assert!(!false_.is_undefined());
assert!(!false_.is_null());
assert!(!false_.is_null_or_undefined());
}
drop(locker);
}
#[test]
fn exception() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
isolate.enter();
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let reference = "This is a test error";
let local = v8::String::new(scope, reference).unwrap();
v8::range_error(scope, local);
v8::reference_error(scope, local);
v8::syntax_error(scope, local);
v8::type_error(scope, local);
let exception = v8::error(scope, local);
let msg = v8::create_message(scope, exception);
let msg_string = msg.get(scope);
let rust_msg_string = msg_string.to_rust_string_lossy(scope);
assert_eq!(
"Uncaught Error: This is a test error".to_string(),
rust_msg_string
);
assert!(v8::get_stack_trace(scope, exception).is_none());
context.exit();
}
drop(locker);
isolate.exit();
}
#[test]
fn json() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let json_string = v8_str(s, "{\"a\": 1, \"b\": 2}");
let maybe_value = v8::json::parse(context, json_string);
assert!(maybe_value.is_some());
let value = maybe_value.unwrap();
let maybe_stringified = v8::json::stringify(context, value);
assert!(maybe_stringified.is_some());
let stringified = maybe_stringified.unwrap();
let rust_str = stringified.to_rust_string_lossy(s);
assert_eq!("{\"a\":1,\"b\":2}".to_string(), rust_str);
context.exit();
}
drop(locker);
}
#[test]
fn object() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let null: v8::Local<v8::Value> = new_null(scope).into();
let s1 = v8::String::new(scope, "a").unwrap();
let s2 = v8::String::new(scope, "b").unwrap();
let name1 = s1.into();
let name2 = s2.into();
let names = vec![name1, name2];
let v1: v8::Local<v8::Value> = v8::Number::new(scope, 1.0).into();
let v2: v8::Local<v8::Value> = v8::Number::new(scope, 2.0).into();
let values = vec![v1, v2];
let object = v8::Object::new2(scope, null, names, values);
assert!(!object.is_null_or_undefined());
let object_ = v8::Object::new(scope);
assert!(!object_.is_null_or_undefined());
let id = object_.get_identity_hash();
assert_ne!(id, 0);
context.exit();
}
drop(locker);
}
#[test]
fn array() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let s1 = v8::String::new(s, "a").unwrap();
let index1 = v8::Integer::new(s, 0);
let s2 = v8::String::new(s, "b").unwrap();
let index2 = v8::Integer::new(s, 1);
let array = v8::Array::new(s, 2);
array.set(context, index1.into(), s1.into());
array.set(context, index2.into(), s2.into());
let maybe_v1 = array.get(s, context, index1.into());
assert!(maybe_v1.is_some());
assert!(maybe_v1.unwrap().same_value(s1.into()));
let maybe_v2 = array.get(s, context, index2.into());
assert!(maybe_v2.is_some());
assert!(maybe_v2.unwrap().same_value(s2.into()));
context.exit();
}
drop(locker);
}
#[test]
fn create_data_property() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
eval(scope, context, "var a = {};");
let key = v8_str(scope, "a");
let obj = context
.global(scope)
.get(scope, context, key.into())
.unwrap();
assert!(obj.is_object());
let obj = obj.to_object(scope).unwrap();
let key = v8_str(scope, "foo");
let value = v8_str(scope, "bar");
assert_eq!(
obj.create_data_property(context, key.into(), value.into()),
v8::MaybeBool::JustTrue
);
let actual = obj.get(scope, context, key.into()).unwrap();
assert!(value.strict_equals(actual));
let key2 = v8_str(scope, "foo2");
assert_eq!(
obj.set(context, key2.into(), value.into()),
v8::MaybeBool::JustTrue
);
let actual = obj.get(scope, context, key2.into()).unwrap();
assert!(value.strict_equals(actual));
context.exit();
}
drop(locker);
}
#[test]
fn object_set_accessor() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let mut obj = v8::Object::new(scope);
let key = v8_str(scope, "key");
static CALL_COUNT: AtomicUsize = AtomicUsize::new(0);
extern "C" fn getter(
name: v8::Local<v8::Name>,
info: &v8::PropertyCallbackInfo,
) {
let rv = &mut info.get_return_value();
// TODO fix callback mutability.
#[allow(mutable_transmutes)]
#[allow(clippy::transmute_ptr_to_ptr)]
let info: &mut v8::PropertyCallbackInfo =
unsafe { std::mem::transmute(info) };
{
let mut hs = v8::HandleScope::new(info);
let scope = hs.enter();
let name_str =
name.to_string(scope).unwrap().to_rust_string_lossy(scope);
assert_eq!(name_str, "key");
let s = v8::String::new(scope, "hello").unwrap();
rv.set(s.into());
}
CALL_COUNT.fetch_add(1, Ordering::SeqCst);
}
obj.set_accessor(context, key.into(), getter);
let global = context.global(scope);
let obj_name = v8_str(scope, "obj");
global.set(context, obj_name.into(), obj.into());
let actual = eval(scope, context, "obj.key;").unwrap();
let expected = v8_str(scope, "hello");
assert!(actual.strict_equals(expected.into()));
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 1);
context.exit();
}
drop(locker);
}
#[test]
fn promise_resolved() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let maybe_resolver = v8::PromiseResolver::new(scope, context);
assert!(maybe_resolver.is_some());
let mut resolver = maybe_resolver.unwrap();
let mut promise = resolver.get_promise(scope);
assert!(!promise.has_handler());
assert_eq!(promise.state(), v8::PromiseState::Pending);
let value = v8::String::new(scope, "test").unwrap();
resolver.resolve(context, value.into());
assert_eq!(promise.state(), v8::PromiseState::Fulfilled);
let result = promise.result(scope);
let result_str = result.to_string(scope).unwrap();
assert_eq!(result_str.to_rust_string_lossy(scope), "test".to_string());
// Resolve again with different value, since promise is already in `Fulfilled` state
// it should be ignored.
let value = v8::String::new(scope, "test2").unwrap();
resolver.resolve(context, value.into());
let result = promise.result(scope);
let result_str = result.to_string(scope).unwrap();
assert_eq!(result_str.to_rust_string_lossy(scope), "test".to_string());
context.exit();
}
drop(locker);
}
#[test]
fn promise_rejected() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let maybe_resolver = v8::PromiseResolver::new(scope, context);
assert!(maybe_resolver.is_some());
let mut resolver = maybe_resolver.unwrap();
let mut promise = resolver.get_promise(scope);
assert!(!promise.has_handler());
assert_eq!(promise.state(), v8::PromiseState::Pending);
let value = v8::String::new(scope, "test").unwrap();
let rejected = resolver.reject(context, value.into());
assert!(rejected.unwrap());
assert_eq!(promise.state(), v8::PromiseState::Rejected);
let result = promise.result(scope);
let result_str = result.to_string(scope).unwrap();
assert_eq!(result_str.to_rust_string_lossy(scope), "test".to_string());
// Reject again with different value, since promise is already in `Rejected` state
// it should be ignored.
let value = v8::String::new(scope, "test2").unwrap();
resolver.reject(context, value.into());
let result = promise.result(scope);
let result_str = result.to_string(scope).unwrap();
assert_eq!(result_str.to_rust_string_lossy(scope), "test".to_string());
context.exit();
}
drop(locker);
}
extern "C" fn fn_callback(info: &FunctionCallbackInfo) {
assert_eq!(info.length(), 0);
{
let rv = &mut info.get_return_value();
#[allow(mutable_transmutes)]
#[allow(clippy::transmute_ptr_to_ptr)]
let info: &mut FunctionCallbackInfo = unsafe { std::mem::transmute(info) };
{
let mut hs = v8::HandleScope::new(info);
let scope = hs.enter();
let s = v8::String::new(scope, "Hello callback!").unwrap();
let value: Local<v8::Value> = s.into();
let rv_value = rv.get(scope);
assert!(rv_value.is_undefined());
rv.set(value);
}
}
}
extern "C" fn fn_callback2(info: &FunctionCallbackInfo) {
#[allow(mutable_transmutes)]
#[allow(clippy::transmute_ptr_to_ptr)]
let info: &mut FunctionCallbackInfo = unsafe { std::mem::transmute(info) };
assert_eq!(info.length(), 2);
let isolate = info.get_isolate();
let mut locker = v8::Locker::new(&isolate);
let mut context = isolate.get_current_context();
let arg1 = info.get_argument(0);
let arg2 = info.get_argument(1);
let rv = &mut info.get_return_value();
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
context.enter();
let arg1_val = v8::String::new(scope, "arg1").unwrap();
assert!(arg1.is_string());
assert!(arg1.strict_equals(arg1_val.into()));
let arg2_val = v8::Integer::new(scope, 2);
assert!(arg2.is_number());
assert!(arg2.strict_equals(arg2_val.into()));
let s = v8::String::new(scope, "Hello callback!").unwrap();
let value: Local<v8::Value> = s.into();
let rv_value = rv.get(scope);
assert!(rv_value.is_undefined());
rv.set(value);
context.exit();
}
}
#[test]
fn function() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let global = context.global(scope);
let recv: Local<v8::Value> = global.into();
// create function using template
let mut fn_template = v8::FunctionTemplate::new(scope, fn_callback);
let mut function = fn_template
.get_function(scope, context)
.expect("Unable to create function");
let _value =
v8::Function::call(&mut *function, scope, context, recv, 0, vec![]);
// create function without a template
let mut function = v8::Function::new(scope, context, fn_callback2)
.expect("Unable to create function");
let arg1 = v8::String::new(scope, "arg1").unwrap();
let arg2 = v8::Integer::new(scope, 2);
let maybe_value = v8::Function::call(
&mut *function,
scope,
context,
recv,
2,
vec![arg1.into(), arg2.into()],
);
let value = maybe_value.unwrap();
let value_str = value.to_string(scope).unwrap();
let rust_str = value_str.to_rust_string_lossy(scope);
assert_eq!(rust_str, "Hello callback!".to_string());
context.exit();
}
drop(locker);
}
extern "C" fn promise_reject_callback(msg: v8::PromiseRejectMessage) {
let event = msg.get_event();
assert_eq!(event, v8::PromiseRejectEvent::PromiseRejectWithNoHandler);
let mut promise = msg.get_promise();
assert_eq!(promise.state(), v8::PromiseState::Rejected);
let mut promise_obj: Local<v8::Object> = promise.into();
let isolate = promise_obj.get_isolate();
let value = msg.get_value();
let mut locker = v8::Locker::new(isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let value_str = value.to_string(scope).unwrap();
let rust_str = value_str.to_rust_string_lossy(scope);
assert_eq!(rust_str, "promise rejected".to_string());
}
drop(locker);
}
#[test]
fn set_promise_reject_callback() {
setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.set_promise_reject_callback(promise_reject_callback);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let mut resolver = v8::PromiseResolver::new(scope, context).unwrap();
let value = v8::String::new(scope, "promise rejected").unwrap();
resolver.reject(context, value.into());
context.exit();
}
drop(locker);
isolate.exit();
}
fn mock_script_origin<'sc>(
scope: &mut impl v8::ToLocal<'sc>,
resource_name_: &str,
) -> v8::ScriptOrigin<'sc> {
let resource_name = v8_str(scope, resource_name_);
let resource_line_offset = v8::Integer::new(scope, 0);
let resource_column_offset = v8::Integer::new(scope, 0);
let resource_is_shared_cross_origin = v8::new_true(scope);
let script_id = v8::Integer::new(scope, 123);
let source_map_url = v8_str(scope, "source_map_url");
let resource_is_opaque = v8::new_true(scope);
let is_wasm = v8::new_false(scope);
let is_module = v8::new_true(scope);
v8::ScriptOrigin::new(
resource_name.into(),
resource_line_offset,
resource_column_offset,
resource_is_shared_cross_origin,
script_id,
source_map_url.into(),
resource_is_opaque,
is_wasm,
is_module,
)
}
fn mock_source<'sc>(
scope: &mut impl ToLocal<'sc>,
resource_name: &str,
source: &str,
) -> v8::script_compiler::Source {
let source_str = v8_str(scope, source);
let script_origin = mock_script_origin(scope, resource_name);
v8::script_compiler::Source::new(source_str, &script_origin)
}
#[test]
fn script_compiler_source() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.set_promise_reject_callback(promise_reject_callback);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let source = "1+2";
let script_origin = mock_script_origin(scope, "foo.js");
let source =
v8::script_compiler::Source::new(v8_str(scope, source), &script_origin);
let result = v8::script_compiler::compile_module(&isolate, source);
assert!(result.is_some());
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn module_instantiation_failures1() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let source_text = v8_str(
scope,
"import './foo.js';\n\
export {} from './bar.js';",
);
let origin = mock_script_origin(scope, "foo.js");
let source = v8::script_compiler::Source::new(source_text, &origin);
let mut module =
v8::script_compiler::compile_module(&isolate, source).unwrap();
assert_eq!(v8::ModuleStatus::Uninstantiated, module.get_status());
assert_eq!(2, module.get_module_requests_length());
assert_eq!(
"./foo.js",
module.get_module_request(0).to_rust_string_lossy(scope)
);
let loc = module.get_module_request_location(0);
assert_eq!(0, loc.get_line_number());
assert_eq!(7, loc.get_column_number());
assert_eq!(
"./bar.js",
module.get_module_request(1).to_rust_string_lossy(scope)
);
let loc = module.get_module_request_location(1);
assert_eq!(1, loc.get_line_number());
assert_eq!(15, loc.get_column_number());
// Instantiation should fail.
{
let mut try_catch = v8::TryCatch::new(scope);
let tc = try_catch.enter();
fn resolve_callback(
context: v8::Local<v8::Context>,
_specifier: v8::Local<v8::String>,
_referrer: v8::Local<v8::Module>,
) -> *mut v8::Module {
let mut cbs = v8::CallbackScope::new(context);
let mut hs = v8::HandleScope::new(cbs.enter());
let scope = hs.enter();
let e = v8_str(scope, "boom");
scope.isolate().throw_exception(e.into());
std::ptr::null_mut()
}
let result = module.instantiate_module(context, resolve_callback);
assert!(result.is_none());
assert!(tc.has_caught());
assert!(tc
.exception()
.unwrap()
.strict_equals(v8_str(scope, "boom").into()));
assert_eq!(v8::ModuleStatus::Uninstantiated, module.get_status());
}
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
fn compile_specifier_as_module_resolve_callback(
context: v8::Local<v8::Context>,
specifier: v8::Local<v8::String>,
_referrer: v8::Local<v8::Module>,
) -> *mut v8::Module {
let mut cbs = v8::CallbackScope::new(context);
let mut hs = v8::EscapableHandleScope::new(cbs.enter());
let scope = hs.enter();
let origin = mock_script_origin(scope, "module.js");
let source = v8::script_compiler::Source::new(specifier, &origin);
let module =
v8::script_compiler::compile_module(scope.isolate(), source).unwrap();
&mut *scope.escape(module)
}
#[test]
fn module_evaluation() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let source_text = v8_str(
scope,
"import 'Object.expando = 5';\n\
import 'Object.expando *= 2';",
);
let origin = mock_script_origin(scope, "foo.js");
let source = v8::script_compiler::Source::new(source_text, &origin);
let mut module =
v8::script_compiler::compile_module(&isolate, source).unwrap();
assert_eq!(v8::ModuleStatus::Uninstantiated, module.get_status());
let result = module.instantiate_module(
context,
compile_specifier_as_module_resolve_callback,
);
assert!(result.unwrap());
assert_eq!(v8::ModuleStatus::Instantiated, module.get_status());
let result = module.evaluate(scope, context);
assert!(result.is_some());
assert_eq!(v8::ModuleStatus::Evaluated, module.get_status());
let result = eval(scope, context, "Object.expando").unwrap();
assert!(result.is_number());
let expected = v8::Number::new(scope, 10.);
assert!(result.strict_equals(expected.into()));
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn primitive_array() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let length = 3;
let array = v8::PrimitiveArray::new(scope, length);
assert_eq!(length, array.length());
for i in 0..length {
let item = array.get(scope, i);
assert!(item.is_undefined());
}
let string = v8_str(scope, "test");
array.set(scope, 1, string.into());
assert!(array.get(scope, 0).is_undefined());
assert!(array.get(scope, 1).is_string());
let num = v8::Number::new(scope, 0.42);
array.set(scope, 2, num.into());
assert!(array.get(scope, 0).is_undefined());
assert!(array.get(scope, 1).is_string());
assert!(array.get(scope, 2).is_number());
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn ui() {
// This environment variable tells build.rs that we're running trybuild tests,
// so it won't rebuild V8.
std::env::set_var("DENO_TRYBUILD", "1");
let t = trybuild::TestCases::new();
t.compile_fail("tests/compile_fail/*.rs");
}
#[test]
fn equality() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
assert!(v8_str(scope, "a").strict_equals(v8_str(scope, "a").into()));
assert!(!v8_str(scope, "a").strict_equals(v8_str(scope, "b").into()));
assert!(v8_str(scope, "a").same_value(v8_str(scope, "a").into()));
assert!(!v8_str(scope, "a").same_value(v8_str(scope, "b").into()));
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn array_buffer_view() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let source = v8::String::new(s, "new Uint8Array([23,23,23,23])").unwrap();
let mut script = v8::Script::compile(s, context, source, None).unwrap();
source.to_rust_string_lossy(s);
let result = script.run(s, context).unwrap();
// TODO: safer casts.
let result = unsafe { Local::<v8::ArrayBufferView>::cast(result) };
assert_eq!(result.byte_length(), 4);
assert_eq!(result.byte_offset(), 0);
let mut dest = [0; 4];
let copy_bytes = result.copy_contents(&mut dest);
assert_eq!(copy_bytes, 4);
assert_eq!(dest, [23, 23, 23, 23]);
let maybe_ab = result.buffer();
assert!(maybe_ab.is_some());
let ab = maybe_ab.unwrap();
assert_eq!(ab.byte_length(), 4);
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn snapshot_creator() {
let g = setup();
// First we create the snapshot, there is a single global variable 'a' set to
// the value 3.
let mut startup_data = {
let mut snapshot_creator = v8::SnapshotCreator::new(None);
let isolate = snapshot_creator.get_isolate();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let source = v8::String::new(scope, "a = 1 + 2").unwrap();
let mut script =
v8::Script::compile(scope, context, source, None).unwrap();
script.run(scope, context).unwrap();
snapshot_creator.set_default_context(context);
context.exit();
}
snapshot_creator
.create_blob(v8::FunctionCodeHandling::Clear)
.unwrap()
};
assert!(startup_data.len() > 0);
// Now we try to load up the snapshot and check that 'a' has the correct
// value.
{
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
params.set_snapshot_blob(&mut startup_data);
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let source = v8::String::new(scope, "a === 3").unwrap();
let mut script =
v8::Script::compile(scope, context, source, None).unwrap();
let result = script.run(scope, context).unwrap();
let true_val = v8::new_true(scope).into();
assert!(result.same_value(true_val));
context.exit();
}
// TODO(ry) WARNING! startup_data needs to be kept alive as long the isolate
// using it. See note in CreateParams::set_snapshot_blob
drop(startup_data);
}
drop(g);
}
lazy_static! {
static ref EXTERNAL_REFERENCES: v8::ExternalReferences =
v8::ExternalReferences::new(&[fn_callback]);
}
#[test]
fn external_references() {
let g = setup();
// First we create the snapshot, there is a single global variable 'a' set to
// the value 3.
let mut startup_data = {
let mut snapshot_creator =
v8::SnapshotCreator::new(Some(&EXTERNAL_REFERENCES));
let isolate = snapshot_creator.get_isolate();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
// create function using template
let mut fn_template = v8::FunctionTemplate::new(scope, fn_callback);
let function = fn_template
.get_function(scope, context)
.expect("Unable to create function");
let global = context.global(scope);
global.set(context, v8_str(scope, "F").into(), function.into());
snapshot_creator.set_default_context(context);
context.exit();
}
snapshot_creator
.create_blob(v8::FunctionCodeHandling::Clear)
.unwrap()
};
assert!(startup_data.len() > 0);
// Now we try to load up the snapshot and check that 'a' has the correct
// value.
{
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
params.set_snapshot_blob(&mut startup_data);
params.set_external_references(&EXTERNAL_REFERENCES);
let isolate = v8::Isolate::new(params);
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let result =
eval(scope, context, "if(F() != 'wrong answer') throw 'boom1'");
assert!(result.is_none());
let result =
eval(scope, context, "if(F() != 'Hello callback!') throw 'boom2'");
assert!(result.is_some());
context.exit();
}
// TODO(ry) WARNING! startup_data needs to be kept alive as long the isolate
// using it. See note in CreateParams::set_snapshot_blob
drop(startup_data);
}
drop(g);
}
#[test]
fn startup_data() {
let data1 = b"abcd";
let sd1 = v8::StartupData::new(data1);
assert_eq!(&*sd1, data1);
let data2 = b"defg";
let vec2 = Vec::from(&data2[..]);
let sd2 = v8::StartupData::new(&vec2);
assert_eq!(&*sd2, data2);
let data3 = b"hijk";
let sd3 = Box::new(v8::StartupData::new(data3));
assert_eq!(&**sd3, data3);
}
#[test]
fn uint8_array() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let source = v8::String::new(s, "new Uint8Array([23,23,23,23])").unwrap();
let mut script = v8::Script::compile(s, context, source, None).unwrap();
source.to_rust_string_lossy(s);
let result = script.run(s, context).unwrap();
// TODO: safer casts.
let result = unsafe { Local::<v8::ArrayBufferView>::cast(result) };
assert_eq!(result.byte_length(), 4);
assert_eq!(result.byte_offset(), 0);
let mut dest = [0; 4];
let copy_bytes = result.copy_contents(&mut dest);
assert_eq!(copy_bytes, 4);
assert_eq!(dest, [23, 23, 23, 23]);
let maybe_ab = result.buffer();
assert!(maybe_ab.is_some());
let ab = maybe_ab.unwrap();
let uint8_array = v8::Uint8Array::new(ab, 0, 0);
assert!(uint8_array.is_some());
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn dynamic_import() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
static CALL_COUNT: AtomicUsize = AtomicUsize::new(0);
extern "C" fn dynamic_import_cb(
context: v8::Local<v8::Context>,
_referrer: v8::Local<v8::ScriptOrModule>,
specifier: v8::Local<v8::String>,
) -> *mut v8::Promise {
let mut cbs = v8::CallbackScope::new(context);
let mut hs = v8::HandleScope::new(cbs.enter());
let scope = hs.enter();
assert!(specifier.strict_equals(v8_str(scope, "bar.js").into()));
let e = v8_str(scope, "boom");
scope.isolate().throw_exception(e.into());
CALL_COUNT.fetch_add(1, Ordering::SeqCst);
std::ptr::null_mut()
}
isolate.set_host_import_module_dynamically_callback(dynamic_import_cb);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let result = eval(
s,
context,
"(async function () {\n\
let x = await import('bar.js');\n\
})();",
);
assert!(result.is_some());
assert_eq!(CALL_COUNT.load(Ordering::SeqCst), 1);
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
fn shared_array_buffer() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let s = hs.enter();
let mut context = v8::Context::new(s);
context.enter();
let maybe_sab = v8::SharedArrayBuffer::new(s, 16);
assert!(maybe_sab.is_some());
let sab = maybe_sab.unwrap();
let mut backing_store = sab.get_backing_store();
let shared_buf = backing_store.data_bytes();
shared_buf[5] = 12;
shared_buf[12] = 52;
let global = context.global(s);
assert_eq!(
global.create_data_property(
context,
v8_str(s, "shared").into(),
sab.into(),
),
v8::MaybeBool::JustTrue
);
let source = v8::String::new(
s,
"sharedBytes = new Uint8Array(shared); sharedBytes[2] = 16; sharedBytes[14] = 62; sharedBytes[5] + sharedBytes[12]",
)
.unwrap();
let mut script = v8::Script::compile(s, context, source, None).unwrap();
source.to_rust_string_lossy(s);
let result = script.run(s, context).unwrap();
// TODO: safer casts.
let result = unsafe { Local::<v8::Integer>::cast(result) };
assert_eq!(result.value(), 64);
assert_eq!(shared_buf[2], 16);
assert_eq!(shared_buf[14], 62);
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}
#[test]
#[allow(clippy::cognitive_complexity)]
fn value_checker() {
let g = setup();
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
let mut isolate = v8::Isolate::new(params);
isolate.enter();
let mut locker = v8::Locker::new(&isolate);
{
let mut hs = v8::HandleScope::new(&mut locker);
let scope = hs.enter();
let mut context = v8::Context::new(scope);
context.enter();
let value = eval(scope, context, "undefined").unwrap();
assert!(value.is_undefined());
assert!(value.is_null_or_undefined());
let value = eval(scope, context, "null").unwrap();
assert!(value.is_null());
assert!(value.is_null_or_undefined());
let value = eval(scope, context, "true").unwrap();
assert!(value.is_boolean());
assert!(value.is_true());
assert!(!value.is_false());
let value = eval(scope, context, "false").unwrap();
assert!(value.is_boolean());
assert!(!value.is_true());
assert!(value.is_false());
let value = eval(scope, context, "'name'").unwrap();
assert!(value.is_name());
assert!(value.is_string());
let value = eval(scope, context, "Symbol()").unwrap();
assert!(value.is_name());
assert!(value.is_symbol());
let value = eval(scope, context, "() => 0").unwrap();
assert!(value.is_function());
let value = eval(scope, context, "async () => 0").unwrap();
assert!(value.is_async_function());
let value = eval(scope, context, "[]").unwrap();
assert!(value.is_array());
let value = eval(scope, context, "BigInt('9007199254740995')").unwrap();
assert!(value.is_big_int());
let value = eval(scope, context, "123").unwrap();
assert!(value.is_number());
let value = eval(scope, context, "123").unwrap();
assert!(value.is_number());
assert!(value.is_int32());
assert!(value.is_uint32());
let value = eval(scope, context, "-123").unwrap();
assert!(value.is_number());
assert!(!value.is_uint32());
let value = eval(scope, context, "new Date()").unwrap();
assert!(value.is_date());
let value =
eval(scope, context, "(function(){return arguments})()").unwrap();
assert!(value.is_arguments_object());
let value = eval(scope, context, "new Promise(function(){})").unwrap();
assert!(value.is_promise());
let value = eval(scope, context, "new Map()").unwrap();
assert!(value.is_map());
let value = eval(scope, context, "new Set").unwrap();
assert!(value.is_set());
let value = eval(scope, context, "new Map().entries()").unwrap();
assert!(value.is_map_iterator());
let value = eval(scope, context, "new Set().entries()").unwrap();
assert!(value.is_set_iterator());
let value = eval(scope, context, "new WeakMap()").unwrap();
assert!(value.is_weak_map());
let value = eval(scope, context, "new WeakSet()").unwrap();
assert!(value.is_weak_set());
let value = eval(scope, context, "new ArrayBuffer(8)").unwrap();
assert!(value.is_array_buffer());
let value = eval(scope, context, "new Uint8Array([])").unwrap();
assert!(value.is_uint8_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Uint8ClampedArray([])").unwrap();
assert!(value.is_uint8_clamped_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Int8Array([])").unwrap();
assert!(value.is_int8_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Uint16Array([])").unwrap();
assert!(value.is_uint16_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Int16Array([])").unwrap();
assert!(value.is_int16_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Uint32Array([])").unwrap();
assert!(value.is_uint32_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Int32Array([])").unwrap();
assert!(value.is_int32_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Float32Array([])").unwrap();
assert!(value.is_float32_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new Float64Array([])").unwrap();
assert!(value.is_float64_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new BigInt64Array([])").unwrap();
assert!(value.is_big_int64_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new BigUint64Array([])").unwrap();
assert!(value.is_big_uint64_array());
assert!(value.is_array_buffer_view());
assert!(value.is_typed_array());
let value = eval(scope, context, "new SharedArrayBuffer(64)").unwrap();
assert!(value.is_shared_array_buffer());
let value = eval(scope, context, "new Proxy({},{})").unwrap();
assert!(value.is_proxy());
// Other checker, Just check if it can be called
value.is_external();
value.is_web_assembly_compiled_module();
value.is_module_namespace_object();
context.exit();
}
drop(locker);
isolate.exit();
drop(g);
}