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Executor World kind

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This commit is contained in:
sjorsdonkers
2025-04-22 15:25:28 +02:00
committed by Sjors
parent e0bcb625c2
commit 64508cec61
4 changed files with 40 additions and 28 deletions
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52
src/runtime/js.zig
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@@ -265,10 +265,12 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
self.isolate.performMicrotasksCheckpoint();
}
pub fn startExecutor(self: *Self, comptime Global: type, state: State, module_loader: anytype) !*Executor {
pub fn startExecutor(self: *Self, comptime Global: type, state: State, module_loader: anytype, kind: WorldKind) !*Executor {
if (comptime builtin.mode == .Debug) {
std.debug.assert(self.has_executor == false);
self.has_executor = true;
if (kind == .main) {
std.debug.assert(self.has_executor == false);
self.has_executor = true;
}
}
const isolate = self.isolate;
const templates = &self.templates;
@@ -307,8 +309,10 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
}
const context = v8.Context.init(isolate, global_template, null);
context.enter();
errdefer context.exit();
if (kind == .main) {
context.enter();
errdefer context.exit();
}
// This shouldn't be necessary, but it is:
// https://groups.google.com/g/v8-users/c/qAQQBmbi--8
@@ -344,8 +348,9 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
executor.* = .{
.state = state,
.context = context,
.isolate = isolate,
.kind = kind,
.context = context,
.templates = templates,
.handle_scope = handle_scope,
.call_arena = undefined,
@@ -364,7 +369,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
executor.call_arena = executor._call_arena_instance.allocator();
executor.scope_arena = executor._scope_arena_instance.allocator();
errdefer self.stopExecutor(executor, false); // Note: This likely has issues as context.exit() is errdefered as well
errdefer self.stopExecutor(executor); // Note: This likely has issues as context.exit() is errdefered as well
// Custom exception
// NOTE: there is no way in v8 to subclass the Error built-in type
@@ -385,16 +390,18 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
// a Context, it's managed by the garbage collector. So, when the
// `gc_hints` option is enabled, we'll use the `lowMemoryNotification`
// call on the isolate to encourage v8 to free the context.
pub fn stopExecutor(self: *Self, executor: *Executor, exit_context: bool) void {
executor.deinit(exit_context);
pub fn stopExecutor(self: *Self, executor: *Executor) void {
executor.deinit();
self.executor_pool.destroy(executor);
if (self.gc_hints) {
self.isolate.lowMemoryNotification();
}
if (comptime builtin.mode == .Debug) {
std.debug.assert(self.has_executor == true);
self.has_executor = false;
if (executor.kind == .main) {
std.debug.assert(self.has_executor == true);
self.has_executor = false;
}
}
}
@@ -415,7 +422,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
// object (i.e. the Window), which gets attached not only to the Window
// constructor/FunctionTemplate as normal, but also through the default
// FunctionTemplate of the isolate (in startExecutor)
fn attachClass(self: *Self, comptime Struct: type, template: v8.FunctionTemplate) void {
fn attachClass(self: *const Self, comptime Struct: type, template: v8.FunctionTemplate) void {
const template_proto = template.getPrototypeTemplate();
inline for (@typeInfo(Struct).@"struct".decls) |declaration| {
const name = declaration.name;
@@ -491,7 +498,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
return template;
}
fn generateMethod(self: *Self, comptime Struct: type, comptime name: []const u8, template_proto: v8.ObjectTemplate) void {
fn generateMethod(self: *const Self, comptime Struct: type, comptime name: []const u8, template_proto: v8.ObjectTemplate) void {
var js_name: v8.Name = undefined;
if (comptime std.mem.eql(u8, name, "_symbol_iterator")) {
js_name = v8.Symbol.getIterator(self.isolate).toName();
@@ -513,7 +520,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
template_proto.set(js_name, function_template, v8.PropertyAttribute.None);
}
fn generateAttribute(self: *Self, comptime Struct: type, comptime name: []const u8, template: v8.FunctionTemplate, template_proto: v8.ObjectTemplate) void {
fn generateAttribute(self: *const Self, comptime Struct: type, comptime name: []const u8, template: v8.FunctionTemplate, template_proto: v8.ObjectTemplate) void {
const zig_value = @field(Struct, name);
const js_value = simpleZigValueToJs(self.isolate, zig_value, true);
@@ -526,7 +533,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
template_proto.set(js_name, js_value, v8.PropertyAttribute.ReadOnly + v8.PropertyAttribute.DontDelete);
}
fn generateProperty(self: *Self, comptime Struct: type, comptime name: []const u8, template_proto: v8.ObjectTemplate) void {
fn generateProperty(self: *const Self, comptime Struct: type, comptime name: []const u8, template_proto: v8.ObjectTemplate) void {
const getter = @field(Struct, "get_" ++ name);
const param_count = @typeInfo(@TypeOf(getter)).@"fn".params.len;
@@ -576,7 +583,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
template_proto.setGetterAndSetter(js_name, getter_callback, setter_callback);
}
fn generateIndexer(_: *Self, comptime Struct: type, template_proto: v8.ObjectTemplate) void {
fn generateIndexer(_: *const Self, comptime Struct: type, template_proto: v8.ObjectTemplate) void {
if (@hasDecl(Struct, "indexed_get") == false) {
return;
}
@@ -605,7 +612,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
template_proto.setIndexedProperty(configuration, null);
}
fn generateNamedIndexer(_: *Self, comptime Struct: type, template_proto: v8.ObjectTemplate) void {
fn generateNamedIndexer(_: *const Self, comptime Struct: type, template_proto: v8.ObjectTemplate) void {
if (@hasDecl(Struct, "named_get") == false) {
return;
}
@@ -765,10 +772,17 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
const PersistentObject = v8.Persistent(v8.Object);
const PersistentFunction = v8.Persistent(v8.Function);
const WorldKind = enum {
main,
isolated,
worker,
};
// This is capable of executing JavaScript.
pub const Executor = struct {
state: State,
isolate: v8.Isolate,
kind: WorldKind,
handle_scope: v8.HandleScope,
@@ -819,9 +833,9 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
// not public, must be destroyed via env.stopExecutor()
fn deinit(self: *Executor, exit_context: bool) void {
fn deinit(self: *Executor) void {
if (self.scope != null) self.endScope();
if (exit_context) self.context.exit();
if (self.kind == .main) self.context.exit();
self.handle_scope.deinit();
self._call_arena_instance.deinit();