mirror of
https://github.com/servo/servo.git
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b4079b3ff3
This is the final step of #1799, where the majority of the generated code for the JS bindings is now compiled as part of the script_bindings build step. The remaining pieces in script must live there because they refer to concrete DOM types; all code in script_bindings is generic over the [DomTypes](https://doc.servo.org/script/dom/bindings/codegen/DomTypes/trait.DomTypes.html) trait. My testing with incremental builds shows me a 12 second reduction in build times on my 2024 M4 Macbook Pro when modifying code in the script crate after these changes. Before this PR those changes took 20 seconds to rebuild Servo, and now they take 8 seconds. Testing: Existing WPT tests ensure no regressions. Fixes: #1799 --------- Signed-off-by: Josh Matthews <josh@joshmatthews.net>
424 lines
21 KiB
Rust
424 lines
21 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::ptr;
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use html5ever::interface::QualName;
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use html5ever::{LocalName, local_name, namespace_url, ns};
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use js::conversions::ToJSValConvertible;
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use js::glue::{UnwrapObjectDynamic, UnwrapObjectStatic};
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use js::jsapi::{CallArgs, CurrentGlobalOrNull, JSAutoRealm, JSObject};
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use js::rust::wrappers::{JS_SetPrototype, JS_WrapObject};
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use js::rust::{HandleObject, MutableHandleObject, MutableHandleValue};
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use script_bindings::interface::get_desired_proto;
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use super::utils::ProtoOrIfaceArray;
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use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
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use crate::dom::bindings::codegen::Bindings::{
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HTMLAnchorElementBinding, HTMLAreaElementBinding, HTMLAudioElementBinding,
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HTMLBRElementBinding, HTMLBaseElementBinding, HTMLBodyElementBinding, HTMLButtonElementBinding,
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HTMLCanvasElementBinding, HTMLDListElementBinding, HTMLDataElementBinding,
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HTMLDataListElementBinding, HTMLDetailsElementBinding, HTMLDialogElementBinding,
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HTMLDirectoryElementBinding, HTMLDivElementBinding, HTMLElementBinding,
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HTMLEmbedElementBinding, HTMLFieldSetElementBinding, HTMLFontElementBinding,
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HTMLFormElementBinding, HTMLFrameElementBinding, HTMLFrameSetElementBinding,
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HTMLHRElementBinding, HTMLHeadElementBinding, HTMLHeadingElementBinding,
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HTMLHtmlElementBinding, HTMLIFrameElementBinding, HTMLImageElementBinding,
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HTMLInputElementBinding, HTMLLIElementBinding, HTMLLabelElementBinding,
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HTMLLegendElementBinding, HTMLLinkElementBinding, HTMLMapElementBinding,
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HTMLMenuElementBinding, HTMLMetaElementBinding, HTMLMeterElementBinding, HTMLModElementBinding,
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HTMLOListElementBinding, HTMLObjectElementBinding, HTMLOptGroupElementBinding,
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HTMLOptionElementBinding, HTMLOutputElementBinding, HTMLParagraphElementBinding,
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HTMLParamElementBinding, HTMLPictureElementBinding, HTMLPreElementBinding,
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HTMLProgressElementBinding, HTMLQuoteElementBinding, HTMLScriptElementBinding,
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HTMLSelectElementBinding, HTMLSlotElementBinding, HTMLSourceElementBinding,
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HTMLSpanElementBinding, HTMLStyleElementBinding, HTMLTableCaptionElementBinding,
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HTMLTableCellElementBinding, HTMLTableColElementBinding, HTMLTableElementBinding,
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HTMLTableRowElementBinding, HTMLTableSectionElementBinding, HTMLTemplateElementBinding,
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HTMLTextAreaElementBinding, HTMLTimeElementBinding, HTMLTitleElementBinding,
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HTMLTrackElementBinding, HTMLUListElementBinding, HTMLVideoElementBinding,
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};
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use crate::dom::bindings::codegen::PrototypeList;
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use crate::dom::bindings::conversions::DerivedFrom;
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use crate::dom::bindings::error::{Error, throw_dom_exception};
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use crate::dom::bindings::inheritance::Castable;
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use crate::dom::bindings::reflector::DomObject;
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::create::create_native_html_element;
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use crate::dom::customelementregistry::{ConstructionStackEntry, CustomElementState};
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use crate::dom::element::{Element, ElementCreator};
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use crate::dom::globalscope::GlobalScope;
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use crate::dom::htmlelement::HTMLElement;
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use crate::dom::window::Window;
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use crate::script_runtime::{CanGc, JSContext, JSContext as SafeJSContext};
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use crate::script_thread::ScriptThread;
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/// <https://html.spec.whatwg.org/multipage/#htmlconstructor>
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fn html_constructor(
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cx: JSContext,
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global: &GlobalScope,
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call_args: &CallArgs,
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check_type: fn(&Element) -> bool,
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proto_id: PrototypeList::ID,
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creator: unsafe fn(SafeJSContext, HandleObject, *mut ProtoOrIfaceArray),
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can_gc: CanGc,
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) -> Result<(), ()> {
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let window = global.downcast::<Window>().unwrap();
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let document = window.Document();
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// Step 1. Let registry be current global object's custom element registry.
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let registry = window.CustomElements();
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// Step 2 https://html.spec.whatwg.org/multipage/#htmlconstructor
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// The custom element definition cannot use an element interface as its constructor
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// The new_target might be a cross-compartment wrapper. Get the underlying object
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// so we can do the spec's object-identity checks.
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rooted!(in(*cx) let new_target_unwrapped = unsafe {
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UnwrapObjectDynamic(call_args.new_target().to_object(), *cx, true)
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});
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if new_target_unwrapped.is_null() {
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throw_dom_exception(
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cx,
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global,
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Error::Type("new.target is null".to_owned()),
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can_gc,
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);
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return Err(());
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}
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if call_args.callee() == new_target_unwrapped.get() {
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throw_dom_exception(
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cx,
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global,
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Error::Type("new.target must not be the active function object".to_owned()),
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can_gc,
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);
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return Err(());
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}
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// Step 3. Let definition be the item in registry's custom element definition set with constructor
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// equal to NewTarget. If there is no such item, then throw a TypeError.
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rooted!(in(*cx) let new_target = call_args.new_target().to_object());
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let definition = match registry.lookup_definition_by_constructor(new_target.handle()) {
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Some(definition) => definition,
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None => {
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throw_dom_exception(
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cx,
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global,
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Error::Type("No custom element definition found for new.target".to_owned()),
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can_gc,
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);
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return Err(());
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},
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};
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// Step 4. Let isValue be null.
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let mut is_value = None;
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rooted!(in(*cx) let callee = unsafe { UnwrapObjectStatic(call_args.callee()) });
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if callee.is_null() {
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throw_dom_exception(cx, global, Error::Security, can_gc);
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return Err(());
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}
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{
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let _ac = JSAutoRealm::new(*cx, callee.get());
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rooted!(in(*cx) let mut constructor = ptr::null_mut::<JSObject>());
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rooted!(in(*cx) let global_object = unsafe { CurrentGlobalOrNull(*cx) });
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// Step 5. If definition's local name is equal to definition's name
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// (i.e., definition is for an autonomous custom element):
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if definition.is_autonomous() {
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// Since this element is autonomous, its active function object must be the HTMLElement
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// Retrieve the constructor object for HTMLElement
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HTMLElementBinding::GetConstructorObject(
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cx,
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global_object.handle(),
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constructor.handle_mut(),
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);
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}
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// Step 6. Otherwise (i.e., if definition is for a customized built-in element):
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else {
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get_constructor_object_from_local_name(
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definition.local_name.clone(),
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cx,
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global_object.handle(),
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constructor.handle_mut(),
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);
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// Step 6.3 Set isValue to definition's name.
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is_value = Some(definition.name.clone());
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}
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// Callee must be the same as the element interface's constructor object.
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if constructor.get() != callee.get() {
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throw_dom_exception(
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cx,
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global,
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Error::Type("Custom element does not extend the proper interface".to_owned()),
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can_gc,
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);
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return Err(());
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}
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}
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// Step 6
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rooted!(in(*cx) let mut prototype = ptr::null_mut::<JSObject>());
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get_desired_proto(cx, call_args, proto_id, creator, prototype.handle_mut())?;
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let entry = definition.construction_stack.borrow().last().cloned();
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let result = match entry {
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// Step 7. If definition's construction stack is empty:
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None => {
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// Step 7.1
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let name = QualName::new(None, ns!(html), definition.local_name.clone());
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// Any prototype used to create these elements will be overwritten before returning
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// from this function, so we don't bother overwriting the defaults here.
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let element = if definition.is_autonomous() {
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DomRoot::upcast(HTMLElement::new(name.local, None, &document, None, can_gc))
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} else {
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create_native_html_element(
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name,
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None,
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&document,
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ElementCreator::ScriptCreated,
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None,
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)
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};
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// Step 7.2-7.5 are performed in the generated caller code.
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// Step 7.6 Set element's custom element state to "custom".
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element.set_custom_element_state(CustomElementState::Custom);
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// Step 7.7 Set element's custom element definition to definition.
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element.set_custom_element_definition(definition.clone());
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// Step 7.8 Set element's is value to isValue.
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if let Some(is_value) = is_value {
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element.set_is(is_value);
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}
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if !check_type(&element) {
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throw_dom_exception(cx, global, Error::InvalidState, can_gc);
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return Err(());
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} else {
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// Step 7.9 Return element.
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element
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}
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},
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// Step 9
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Some(ConstructionStackEntry::Element(element)) => {
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// Step 11 is performed in the generated caller code.
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// Step 12
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let mut construction_stack = definition.construction_stack.borrow_mut();
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construction_stack.pop();
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construction_stack.push(ConstructionStackEntry::AlreadyConstructedMarker);
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// Step 13
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if !check_type(&element) {
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throw_dom_exception(cx, global, Error::InvalidState, can_gc);
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return Err(());
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} else {
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element
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}
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},
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// Step 10
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Some(ConstructionStackEntry::AlreadyConstructedMarker) => {
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let s = "Top of construction stack marked AlreadyConstructed due to \
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a custom element constructor constructing itself after super()"
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.to_string();
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throw_dom_exception(cx, global, Error::Type(s), can_gc);
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return Err(());
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},
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};
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rooted!(in(*cx) let mut element = result.reflector().get_jsobject().get());
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unsafe {
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if !JS_WrapObject(*cx, element.handle_mut()) {
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return Err(());
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}
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JS_SetPrototype(*cx, element.handle(), prototype.handle());
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result.to_jsval(*cx, MutableHandleValue::from_raw(call_args.rval()));
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}
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Ok(())
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}
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/// Returns the constructor object for the element associated with the
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/// given local name. This list should only include elements marked with the
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/// [HTMLConstructor](https://html.spec.whatwg.org/multipage/#htmlconstructor)
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/// extended attribute.
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fn get_constructor_object_from_local_name(
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name: LocalName,
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cx: JSContext,
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global: HandleObject,
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rval: MutableHandleObject,
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) -> bool {
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let constructor_fn = match name {
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local_name!("a") => HTMLAnchorElementBinding::GetConstructorObject,
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local_name!("abbr") => HTMLElementBinding::GetConstructorObject,
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local_name!("acronym") => HTMLElementBinding::GetConstructorObject,
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local_name!("address") => HTMLElementBinding::GetConstructorObject,
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local_name!("area") => HTMLAreaElementBinding::GetConstructorObject,
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local_name!("article") => HTMLElementBinding::GetConstructorObject,
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local_name!("aside") => HTMLElementBinding::GetConstructorObject,
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local_name!("audio") => HTMLAudioElementBinding::GetConstructorObject,
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local_name!("b") => HTMLElementBinding::GetConstructorObject,
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local_name!("base") => HTMLBaseElementBinding::GetConstructorObject,
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local_name!("bdi") => HTMLElementBinding::GetConstructorObject,
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local_name!("bdo") => HTMLElementBinding::GetConstructorObject,
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local_name!("big") => HTMLElementBinding::GetConstructorObject,
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local_name!("blockquote") => HTMLQuoteElementBinding::GetConstructorObject,
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local_name!("body") => HTMLBodyElementBinding::GetConstructorObject,
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local_name!("br") => HTMLBRElementBinding::GetConstructorObject,
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local_name!("button") => HTMLButtonElementBinding::GetConstructorObject,
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local_name!("canvas") => HTMLCanvasElementBinding::GetConstructorObject,
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local_name!("caption") => HTMLTableCaptionElementBinding::GetConstructorObject,
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local_name!("center") => HTMLElementBinding::GetConstructorObject,
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local_name!("cite") => HTMLElementBinding::GetConstructorObject,
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local_name!("code") => HTMLElementBinding::GetConstructorObject,
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local_name!("col") => HTMLTableColElementBinding::GetConstructorObject,
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local_name!("colgroup") => HTMLTableColElementBinding::GetConstructorObject,
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local_name!("data") => HTMLDataElementBinding::GetConstructorObject,
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local_name!("datalist") => HTMLDataListElementBinding::GetConstructorObject,
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local_name!("dd") => HTMLElementBinding::GetConstructorObject,
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local_name!("del") => HTMLModElementBinding::GetConstructorObject,
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local_name!("details") => HTMLDetailsElementBinding::GetConstructorObject,
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local_name!("dfn") => HTMLElementBinding::GetConstructorObject,
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local_name!("dialog") => HTMLDialogElementBinding::GetConstructorObject,
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local_name!("dir") => HTMLDirectoryElementBinding::GetConstructorObject,
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local_name!("div") => HTMLDivElementBinding::GetConstructorObject,
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local_name!("dl") => HTMLDListElementBinding::GetConstructorObject,
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local_name!("dt") => HTMLElementBinding::GetConstructorObject,
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local_name!("em") => HTMLElementBinding::GetConstructorObject,
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local_name!("embed") => HTMLEmbedElementBinding::GetConstructorObject,
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local_name!("fieldset") => HTMLFieldSetElementBinding::GetConstructorObject,
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local_name!("figcaption") => HTMLElementBinding::GetConstructorObject,
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local_name!("figure") => HTMLElementBinding::GetConstructorObject,
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local_name!("font") => HTMLFontElementBinding::GetConstructorObject,
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local_name!("footer") => HTMLElementBinding::GetConstructorObject,
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local_name!("form") => HTMLFormElementBinding::GetConstructorObject,
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local_name!("frame") => HTMLFrameElementBinding::GetConstructorObject,
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local_name!("frameset") => HTMLFrameSetElementBinding::GetConstructorObject,
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local_name!("h1") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("h2") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("h3") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("h4") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("h5") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("h6") => HTMLHeadingElementBinding::GetConstructorObject,
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local_name!("head") => HTMLHeadElementBinding::GetConstructorObject,
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local_name!("header") => HTMLElementBinding::GetConstructorObject,
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local_name!("hgroup") => HTMLElementBinding::GetConstructorObject,
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local_name!("hr") => HTMLHRElementBinding::GetConstructorObject,
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local_name!("html") => HTMLHtmlElementBinding::GetConstructorObject,
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local_name!("i") => HTMLElementBinding::GetConstructorObject,
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local_name!("iframe") => HTMLIFrameElementBinding::GetConstructorObject,
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local_name!("img") => HTMLImageElementBinding::GetConstructorObject,
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local_name!("input") => HTMLInputElementBinding::GetConstructorObject,
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local_name!("ins") => HTMLModElementBinding::GetConstructorObject,
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local_name!("kbd") => HTMLElementBinding::GetConstructorObject,
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local_name!("label") => HTMLLabelElementBinding::GetConstructorObject,
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local_name!("legend") => HTMLLegendElementBinding::GetConstructorObject,
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local_name!("li") => HTMLLIElementBinding::GetConstructorObject,
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local_name!("link") => HTMLLinkElementBinding::GetConstructorObject,
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local_name!("listing") => HTMLPreElementBinding::GetConstructorObject,
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local_name!("main") => HTMLElementBinding::GetConstructorObject,
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local_name!("map") => HTMLMapElementBinding::GetConstructorObject,
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local_name!("mark") => HTMLElementBinding::GetConstructorObject,
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local_name!("marquee") => HTMLElementBinding::GetConstructorObject,
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local_name!("menu") => HTMLMenuElementBinding::GetConstructorObject,
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local_name!("meta") => HTMLMetaElementBinding::GetConstructorObject,
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local_name!("meter") => HTMLMeterElementBinding::GetConstructorObject,
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local_name!("nav") => HTMLElementBinding::GetConstructorObject,
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local_name!("nobr") => HTMLElementBinding::GetConstructorObject,
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local_name!("noframes") => HTMLElementBinding::GetConstructorObject,
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local_name!("noscript") => HTMLElementBinding::GetConstructorObject,
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local_name!("object") => HTMLObjectElementBinding::GetConstructorObject,
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local_name!("ol") => HTMLOListElementBinding::GetConstructorObject,
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local_name!("optgroup") => HTMLOptGroupElementBinding::GetConstructorObject,
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local_name!("option") => HTMLOptionElementBinding::GetConstructorObject,
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local_name!("output") => HTMLOutputElementBinding::GetConstructorObject,
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local_name!("p") => HTMLParagraphElementBinding::GetConstructorObject,
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local_name!("param") => HTMLParamElementBinding::GetConstructorObject,
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local_name!("picture") => HTMLPictureElementBinding::GetConstructorObject,
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local_name!("plaintext") => HTMLPreElementBinding::GetConstructorObject,
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local_name!("pre") => HTMLPreElementBinding::GetConstructorObject,
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local_name!("progress") => HTMLProgressElementBinding::GetConstructorObject,
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local_name!("q") => HTMLQuoteElementBinding::GetConstructorObject,
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local_name!("rp") => HTMLElementBinding::GetConstructorObject,
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local_name!("rt") => HTMLElementBinding::GetConstructorObject,
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local_name!("ruby") => HTMLElementBinding::GetConstructorObject,
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local_name!("s") => HTMLElementBinding::GetConstructorObject,
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local_name!("samp") => HTMLElementBinding::GetConstructorObject,
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local_name!("script") => HTMLScriptElementBinding::GetConstructorObject,
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local_name!("section") => HTMLElementBinding::GetConstructorObject,
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local_name!("select") => HTMLSelectElementBinding::GetConstructorObject,
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local_name!("slot") => HTMLSlotElementBinding::GetConstructorObject,
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local_name!("small") => HTMLElementBinding::GetConstructorObject,
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local_name!("source") => HTMLSourceElementBinding::GetConstructorObject,
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local_name!("span") => HTMLSpanElementBinding::GetConstructorObject,
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local_name!("strike") => HTMLElementBinding::GetConstructorObject,
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local_name!("strong") => HTMLElementBinding::GetConstructorObject,
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local_name!("style") => HTMLStyleElementBinding::GetConstructorObject,
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local_name!("sub") => HTMLElementBinding::GetConstructorObject,
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local_name!("summary") => HTMLElementBinding::GetConstructorObject,
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local_name!("sup") => HTMLElementBinding::GetConstructorObject,
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local_name!("table") => HTMLTableElementBinding::GetConstructorObject,
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local_name!("tbody") => HTMLTableSectionElementBinding::GetConstructorObject,
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local_name!("td") => HTMLTableCellElementBinding::GetConstructorObject,
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local_name!("template") => HTMLTemplateElementBinding::GetConstructorObject,
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local_name!("textarea") => HTMLTextAreaElementBinding::GetConstructorObject,
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local_name!("tfoot") => HTMLTableSectionElementBinding::GetConstructorObject,
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local_name!("th") => HTMLTableCellElementBinding::GetConstructorObject,
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local_name!("thead") => HTMLTableSectionElementBinding::GetConstructorObject,
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local_name!("time") => HTMLTimeElementBinding::GetConstructorObject,
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local_name!("title") => HTMLTitleElementBinding::GetConstructorObject,
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local_name!("tr") => HTMLTableRowElementBinding::GetConstructorObject,
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local_name!("tt") => HTMLElementBinding::GetConstructorObject,
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local_name!("track") => HTMLTrackElementBinding::GetConstructorObject,
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local_name!("u") => HTMLElementBinding::GetConstructorObject,
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local_name!("ul") => HTMLUListElementBinding::GetConstructorObject,
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local_name!("var") => HTMLElementBinding::GetConstructorObject,
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local_name!("video") => HTMLVideoElementBinding::GetConstructorObject,
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local_name!("wbr") => HTMLElementBinding::GetConstructorObject,
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local_name!("xmp") => HTMLPreElementBinding::GetConstructorObject,
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_ => return false,
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};
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constructor_fn(cx, global, rval);
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true
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}
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pub(crate) fn pop_current_element_queue(can_gc: CanGc) {
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ScriptThread::pop_current_element_queue(can_gc);
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}
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pub(crate) fn push_new_element_queue() {
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|
ScriptThread::push_new_element_queue();
|
|
}
|
|
|
|
pub(crate) fn call_html_constructor<T: DerivedFrom<Element> + DomObject>(
|
|
cx: JSContext,
|
|
args: &CallArgs,
|
|
global: &GlobalScope,
|
|
proto_id: PrototypeList::ID,
|
|
creator: unsafe fn(SafeJSContext, HandleObject, *mut ProtoOrIfaceArray),
|
|
can_gc: CanGc,
|
|
) -> bool {
|
|
fn element_derives_interface<T: DerivedFrom<Element>>(element: &Element) -> bool {
|
|
element.is::<T>()
|
|
}
|
|
|
|
html_constructor(
|
|
cx,
|
|
global,
|
|
args,
|
|
element_derives_interface::<T>,
|
|
proto_id,
|
|
creator,
|
|
can_gc,
|
|
)
|
|
.is_ok()
|
|
}
|