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script: introduce safe wrappers for js val conversions (#38004)

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Introduce a safe wrapper trait for the unsafe `ToJSValConvertible`, and
use it in `script/dom` where the default `T` implementation works.

Part of https://github.com/servo/servo/issues/37951

---------

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
This commit is contained in:
Gregory Terzian 2025-07-15 08:57:15 +07:00 • committed by GitHub
parent 9e2ee0029a
commit 027954dbad
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16 changed files with 149 additions and 187 deletions
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4
components/script/dom/bindings/constructor.rs
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@ -6,11 +6,11 @@ use std::ptr;
use html5ever::interface::QualName;
use html5ever::{LocalName, local_name, ns};
use js::conversions::ToJSValConvertible;
use js::glue::{UnwrapObjectDynamic, UnwrapObjectStatic};
use js::jsapi::{CallArgs, CurrentGlobalOrNull, JSAutoRealm, JSObject};
use js::rust::wrappers::{JS_SetPrototype, JS_WrapObject};
use js::rust::{HandleObject, MutableHandleObject, MutableHandleValue};
use script_bindings::conversions::SafeToJSValConvertible;
use script_bindings::interface::get_desired_proto;
use super::utils::ProtoOrIfaceArray;
@ -242,7 +242,7 @@ fn html_constructor(
JS_SetPrototype(*cx, element.handle(), prototype.handle());
result.to_jsval(*cx, MutableHandleValue::from_raw(call_args.rval()));
result.safe_to_jsval(cx, MutableHandleValue::from_raw(call_args.rval()));
}
Ok(())
}