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Code Issues Packages 1 Wiki Activity

Upgrade to rusty_v8 v0.4.0 (#4856)

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This commit is contained in:
Bert Belder 2020-04-22 20:24:49 +02:00
parent c43aaa3996
commit 10a174834e
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GPG key ID: 7A77887B2E2ED461
9 changed files with 131 additions and 118 deletions
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3
.github/workflows/ci.yml vendored
View file

@ -107,13 +107,10 @@ jobs:
target/*/.*
target/*/build
target/*/deps
target/*/gn_out
key:
${{ matrix.config.os }}-${{ matrix.config.kind }}-${{ hashFiles('Cargo.lock') }}
restore-keys: |
${{ matrix.config.os }}-${{ matrix.config.kind }}-${{ hashFiles('Cargo.lock') }}
${{ matrix.config.os }}-${{ matrix.config.kind }}-
${{ matrix.config.os }}-
- name: lint.py
if: matrix.config.kind == 'lint'

4
Cargo.lock generated
View file

@ -2065,9 +2065,9 @@ dependencies = [
[[package]]
name = "rusty_v8"
version = "0.3.11"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "54e2d68d8404b3902796736c0d3dec8073b35ba02413aa126e15ad09e9e70842"
checksum = "d7ccfa96e1b3ce6f807a93b58d38fc5e984e617506e52cb336888ab890cd884a"
dependencies = [
"bitflags",
"cargo_gn",

6
cli/js.rs
View file

@ -24,7 +24,7 @@ pub static WINDOW_LIB: &str = include_str!("js/lib.deno.window.d.ts");
#[test]
fn cli_snapshot() {
let mut isolate = deno_core::Isolate::new(
deno_core::StartupData::Snapshot(CLI_SNAPSHOT),
deno_core::StartupData::Snapshot(deno_core::Snapshot::Static(CLI_SNAPSHOT)),
false,
);
deno_core::js_check(isolate.execute(
@ -41,7 +41,9 @@ fn cli_snapshot() {
#[test]
fn compiler_snapshot() {
let mut isolate = deno_core::Isolate::new(
deno_core::StartupData::Snapshot(COMPILER_SNAPSHOT),
deno_core::StartupData::Snapshot(deno_core::Snapshot::Static(
COMPILER_SNAPSHOT,
)),
false,
);
deno_core::js_check(isolate.execute(

5
cli/startup_data.rs
View file

@ -4,6 +4,7 @@ use deno_core::Script;
use crate::js::CLI_SNAPSHOT;
use crate::js::COMPILER_SNAPSHOT;
use deno_core::Snapshot;
use deno_core::StartupData;
#[cfg(feature = "no-snapshot-init")]
@ -29,7 +30,7 @@ pub fn deno_isolate_init() -> StartupData<'static> {
#[cfg(feature = "check-only")]
let data = b"";
StartupData::Snapshot(data)
StartupData::Snapshot(Snapshot::Static(data))
}
#[cfg(feature = "no-snapshot-init")]
@ -55,5 +56,5 @@ pub fn compiler_isolate_init() -> StartupData<'static> {
#[cfg(feature = "check-only")]
let data = b"";
StartupData::Snapshot(data)
StartupData::Snapshot(Snapshot::Static(data))
}

2
core/Cargo.toml
View file

@ -19,7 +19,7 @@ futures = { version = "0.3.4", features = ["thread-pool", "compat"] }
lazy_static = "1.4.0"
libc = "0.2.68"
log = "0.4.8"
rusty_v8 = "0.3.10"
rusty_v8 = "0.4.0"
serde_json = "1.0.51"
url = "2.1.1"

90
core/bindings.rs
View file

@ -8,6 +8,7 @@ use crate::js_errors::JSError;
use rusty_v8 as v8;
use v8::MapFnTo;
use std::cell::Cell;
use std::convert::TryFrom;
use std::option::Option;
use url::Url;
@ -236,9 +237,8 @@ pub fn boxed_slice_to_uint8array<'sc>(
assert!(!buf.is_empty());
let buf_len = buf.len();
let backing_store = v8::ArrayBuffer::new_backing_store_from_boxed_slice(buf);
let mut backing_store_shared = backing_store.make_shared();
let ab =
v8::ArrayBuffer::with_backing_store(scope, &mut backing_store_shared);
let backing_store_shared = backing_store.make_shared();
let ab = v8::ArrayBuffer::with_backing_store(scope, &backing_store_shared);
v8::Uint8Array::new(ab, 0, buf_len).expect("Failed to create UintArray8")
}
@ -271,7 +271,7 @@ pub extern "C" fn host_import_module_dynamically_callback(
let host_defined_options = referrer.get_host_defined_options();
assert_eq!(host_defined_options.length(), 0);
let mut resolver = v8::PromiseResolver::new(scope, context).unwrap();
let resolver = v8::PromiseResolver::new(scope, context).unwrap();
let promise = resolver.get_promise(scope);
let mut resolver_handle = v8::Global::new();
@ -355,6 +355,29 @@ pub extern "C" fn promise_reject_callback(message: v8::PromiseRejectMessage) {
};
}
pub(crate) unsafe fn get_backing_store_slice(
backing_store: &v8::SharedRef<v8::BackingStore>,
byte_offset: usize,
byte_length: usize,
) -> &[u8] {
let cells: *const [Cell<u8>] =
&backing_store[byte_offset..byte_offset + byte_length];
let bytes = cells as *const [u8];
&*bytes
}
#[allow(clippy::mut_from_ref)]
pub(crate) unsafe fn get_backing_store_slice_mut(
backing_store: &v8::SharedRef<v8::BackingStore>,
byte_offset: usize,
byte_length: usize,
) -> &mut [u8] {
let cells: *const [Cell<u8>] =
&backing_store[byte_offset..byte_offset + byte_length];
let bytes = cells as *const _ as *mut [u8];
&mut *bytes
}
fn print(
scope: v8::FunctionCallbackScope,
args: v8::FunctionCallbackArguments,
@ -416,26 +439,27 @@ fn send(
unsafe { &mut *(scope.isolate().get_data(0) as *mut Isolate) };
assert!(!deno_isolate.global_context.is_empty());
let r = v8::Local::<v8::Uint32>::try_from(args.get(0));
if let Err(err) = r {
let s = format!("bad op id {}", err);
let msg = v8::String::new(scope, &s).unwrap();
let op_id = match v8::Local::<v8::Uint32>::try_from(args.get(0)) {
Ok(op_id) => op_id.value() as u32,
Err(err) => {
let msg = format!("invalid op id: {}", err);
let msg = v8::String::new(scope, &msg).unwrap();
scope.isolate().throw_exception(msg.into());
return;
}
};
let op_id = r.unwrap().value() as u32;
let control_backing_store: v8::SharedRef<v8::BackingStore>;
let control = match v8::Local::<v8::ArrayBufferView>::try_from(args.get(1)) {
Ok(view) => {
let byte_offset = view.byte_offset();
let byte_length = view.byte_length();
let backing_store = view.buffer().unwrap().get_backing_store();
let buf = unsafe { &**backing_store.get() };
&buf[byte_offset..byte_offset + byte_length]
}
Err(..) => &[],
Ok(view) => unsafe {
control_backing_store = view.buffer().unwrap().get_backing_store();
get_backing_store_slice(
&control_backing_store,
view.byte_offset(),
view.byte_length(),
)
},
Err(_) => &[],
};
let zero_copy: Option<ZeroCopyBuf> =
@ -654,9 +678,8 @@ fn encode(
let buf_len = text_bytes.len();
let backing_store =
v8::ArrayBuffer::new_backing_store_from_boxed_slice(text_bytes);
let mut backing_store_shared = backing_store.make_shared();
let ab =
v8::ArrayBuffer::with_backing_store(scope, &mut backing_store_shared);
let backing_store_shared = backing_store.make_shared();
let ab = v8::ArrayBuffer::with_backing_store(scope, &backing_store_shared);
v8::Uint8Array::new(ab, 0, buf_len).expect("Failed to create UintArray8")
};
@ -668,15 +691,9 @@ fn decode(
args: v8::FunctionCallbackArguments,
mut rv: v8::ReturnValue,
) {
let buf = match v8::Local::<v8::ArrayBufferView>::try_from(args.get(0)) {
Ok(view) => {
let byte_offset = view.byte_offset();
let byte_length = view.byte_length();
let backing_store = view.buffer().unwrap().get_backing_store();
let buf = unsafe { &**backing_store.get() };
&buf[byte_offset..byte_offset + byte_length]
}
Err(..) => {
let view = match v8::Local::<v8::ArrayBufferView>::try_from(args.get(0)) {
Ok(view) => view,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();
let exception = v8::Exception::type_error(scope, msg);
scope.isolate().throw_exception(exception);
@ -684,6 +701,15 @@ fn decode(
}
};
let backing_store = view.buffer().unwrap().get_backing_store();
let buf = unsafe {
get_backing_store_slice(
&backing_store,
view.byte_offset(),
view.byte_length(),
)
};
let text_str =
v8::String::new_from_utf8(scope, &buf, v8::NewStringType::Normal).unwrap();
rv.set(text_str.into())
@ -791,7 +817,7 @@ fn get_promise_details(
assert!(!deno_isolate.global_context.is_empty());
let context = deno_isolate.global_context.get(scope).unwrap();
let mut promise = match v8::Local::<v8::Promise>::try_from(args.get(0)) {
let promise = match v8::Local::<v8::Promise>::try_from(args.get(0)) {
Ok(val) => val,
Err(_) => {
let msg = v8::String::new(scope, "Invalid argument").unwrap();

6
core/es_isolate.rs
View file

@ -233,7 +233,7 @@ impl EsIsolate {
let scope = cs.enter();
let info = self.modules.get_info(id).expect("ModuleInfo not found");
let mut module = info.handle.get(scope).expect("Empty module handle");
let module = info.handle.get(scope).expect("Empty module handle");
let mut status = module.get_status();
if status == v8::ModuleStatus::Instantiated {
@ -312,7 +312,7 @@ impl EsIsolate {
.dyn_import_map
.remove(&id)
.expect("Invalid dyn import id");
let mut resolver = resolver_handle.get(scope).unwrap();
let resolver = resolver_handle.get(scope).unwrap();
resolver_handle.reset(scope);
let exception = err
@ -348,7 +348,7 @@ impl EsIsolate {
.dyn_import_map
.remove(&id)
.expect("Invalid dyn import id");
let mut resolver = resolver_handle.get(scope).unwrap();
let resolver = resolver_handle.get(scope).unwrap();
resolver_handle.reset(scope);
let info = self
.modules

106
core/isolate.rs
View file

@ -66,15 +66,25 @@ impl ZeroCopyBuf {
impl Deref for ZeroCopyBuf {
type Target = [u8];
fn deref(&self) -> &[u8] {
let buf = unsafe { &**self.backing_store.get() };
&buf[self.byte_offset..self.byte_offset + self.byte_length]
unsafe {
bindings::get_backing_store_slice(
&self.backing_store,
self.byte_offset,
self.byte_length,
)
}
}
}
impl DerefMut for ZeroCopyBuf {
fn deref_mut(&mut self) -> &mut [u8] {
let buf = unsafe { &mut **self.backing_store.get() };
&mut buf[self.byte_offset..self.byte_offset + self.byte_length]
unsafe {
bindings::get_backing_store_slice_mut(
&self.backing_store,
self.byte_offset,
self.byte_length,
)
}
}
}
@ -90,33 +100,6 @@ impl AsMut<[u8]> for ZeroCopyBuf {
}
}
pub enum SnapshotConfig {
Borrowed(v8::StartupData<'static>),
Owned(v8::OwnedStartupData),
}
impl From<&'static [u8]> for SnapshotConfig {
fn from(sd: &'static [u8]) -> Self {
Self::Borrowed(v8::StartupData::new(sd))
}
}
impl From<v8::OwnedStartupData> for SnapshotConfig {
fn from(sd: v8::OwnedStartupData) -> Self {
Self::Owned(sd)
}
}
impl Deref for SnapshotConfig {
type Target = v8::StartupData<'static>;
fn deref(&self) -> &Self::Target {
match self {
Self::Borrowed(sd) => sd,
Self::Owned(sd) => &*sd,
}
}
}
/// Stores a script used to initalize a Isolate
pub struct Script<'a> {
pub source: &'a str,
@ -139,13 +122,17 @@ impl From<Script<'_>> for OwnedScript {
}
}
pub enum Snapshot {
Static(&'static [u8]),
JustCreated(v8::StartupData),
}
/// Represents data used to initialize isolate at startup
/// either a binary snapshot or a javascript source file
/// in the form of the StartupScript struct.
pub enum StartupData<'a> {
Script(Script<'a>),
Snapshot(&'static [u8]),
OwnedSnapshot(v8::OwnedStartupData),
Snapshot(Snapshot),
None,
}
@ -165,7 +152,6 @@ pub struct Isolate {
pub v8_isolate: Option<v8::OwnedIsolate>,
snapshot_creator: Option<v8::SnapshotCreator>,
has_snapshotted: bool,
snapshot: Option<SnapshotConfig>,
pub resource_table: Rc<RefCell<ResourceTable>>,
pub global_context: v8::Global<v8::Context>,
pub(crate) shared_ab: v8::Global<v8::SharedArrayBuffer>,
@ -211,7 +197,7 @@ static DENO_INIT: Once = Once::new();
#[allow(clippy::missing_safety_doc)]
pub unsafe fn v8_init() {
let platform = v8::new_default_platform();
let platform = v8::new_default_platform().unwrap();
v8::V8::initialize_platform(platform);
v8::V8::initialize();
// TODO(ry) This makes WASM compile synchronously. Eventually we should
@ -234,27 +220,16 @@ impl Isolate {
unsafe { v8_init() };
});
let mut load_snapshot: Option<SnapshotConfig> = None;
let mut startup_script: Option<OwnedScript> = None;
// Separate into Option values for each startup type
match startup_data {
StartupData::Script(d) => {
startup_script = Some(d.into());
}
StartupData::Snapshot(d) => {
load_snapshot = Some(d.into());
}
StartupData::OwnedSnapshot(d) => {
load_snapshot = Some(d.into());
}
StartupData::None => {}
let (startup_script, startup_snapshot) = match startup_data {
StartupData::Script(script) => (Some(script.into()), None),
StartupData::Snapshot(snapshot) => (None, Some(snapshot)),
StartupData::None => (None, None),
};
let mut global_context = v8::Global::<v8::Context>::new();
let (mut isolate, maybe_snapshot_creator) = if will_snapshot {
// TODO(ry) Support loading snapshots before snapshotting.
assert!(load_snapshot.is_none());
assert!(startup_snapshot.is_none());
let mut creator =
v8::SnapshotCreator::new(Some(&bindings::EXTERNAL_REFERENCES));
let isolate = unsafe { creator.get_owned_isolate() };
@ -269,12 +244,17 @@ impl Isolate {
(isolate, Some(creator))
} else {
let mut params = v8::Isolate::create_params();
params.set_array_buffer_allocator(v8::new_default_allocator());
params.set_external_references(&bindings::EXTERNAL_REFERENCES);
if let Some(ref mut snapshot) = load_snapshot {
params.set_snapshot_blob(snapshot);
}
let mut params = v8::Isolate::create_params()
.external_references(&**bindings::EXTERNAL_REFERENCES);
let snapshot_loaded = if let Some(snapshot) = startup_snapshot {
params = match snapshot {
Snapshot::Static(data) => params.snapshot_blob(data),
Snapshot::JustCreated(data) => params.snapshot_blob(data),
};
true
} else {
false
};
let isolate = v8::Isolate::new(params);
let mut isolate = Isolate::setup_isolate(isolate);
@ -282,13 +262,12 @@ impl Isolate {
let mut hs = v8::HandleScope::new(&mut isolate);
let scope = hs.enter();
let context = match load_snapshot {
Some(_) => v8::Context::new(scope),
None => {
let context = if snapshot_loaded {
v8::Context::new(scope)
} else {
// If no snapshot is provided, we initialize the context with empty
// main source code and source maps.
bindings::initialize_context(scope)
}
};
global_context.set(scope, context);
@ -307,7 +286,6 @@ impl Isolate {
js_recv_cb: v8::Global::<v8::Function>::new(),
js_macrotask_cb: v8::Global::<v8::Function>::new(),
snapshot_creator: maybe_snapshot_creator,
snapshot: load_snapshot,
has_snapshotted: false,
shared_isolate_handle: Arc::new(Mutex::new(None)),
js_error_create_fn: Box::new(JSError::create),
@ -472,7 +450,7 @@ impl Isolate {
/// ErrBox can be downcast to a type that exposes additional information about
/// the V8 exception. By default this type is JSError, however it may be a
/// different type if Isolate::set_js_error_create_fn() has been used.
pub fn snapshot(&mut self) -> v8::OwnedStartupData {
pub fn snapshot(&mut self) -> v8::StartupData {
assert!(self.snapshot_creator.is_some());
// Note: create_blob() method must not be called from within a HandleScope.
@ -1193,7 +1171,7 @@ pub mod tests {
isolate.snapshot()
};
let startup_data = StartupData::OwnedSnapshot(snapshot);
let startup_data = StartupData::Snapshot(Snapshot::JustCreated(snapshot));
let mut isolate2 = Isolate::new(startup_data, false);
js_check(isolate2.execute("check.js", "if (a != 3) throw Error('x')"));
}

13
core/shared_queue.rs
View file

@ -16,6 +16,7 @@ SharedQueue Binary Layout
+---------------------------------------------------------------+
*/
use crate::bindings;
use crate::ops::OpId;
use rusty_v8 as v8;
@ -56,11 +57,19 @@ impl SharedQueue {
}
pub fn bytes(&self) -> &[u8] {
unsafe { &*self.buf.get() }
unsafe {
bindings::get_backing_store_slice(&self.buf, 0, self.buf.byte_length())
}
}
pub fn bytes_mut(&mut self) -> &mut [u8] {
unsafe { &mut *self.buf.get() }
unsafe {
bindings::get_backing_store_slice_mut(
&self.buf,
0,
self.buf.byte_length(),
)
}
}
fn reset(&mut self) {