refactor(core): Move optional callbacks from JsRuntimeState to ContextState
#17422
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…textState` The `JsRuntimeState` struct stores a number of JS callbacks that are used either in the event loop or when interacting with V8. Some of these callback fields are vectors of callbacks, and therefore could plausibly store at least one callback per realm. However, some of those fields are `Option<v8::Global<v8::Function>>`, which would make the callbacks set by a realm override the one that might have been set by a different realm. As it turns out, all of the current such optional callbacks (`js_promise_reject_cb`, `js_format_exception_cb` and `js_wasm_streaming_cb`) are only used from inside a realm, and therefore this change makes it so such callbacks can only be set from inside a realm, and will only affect that realm. This is a reland of denoland#15599. Towards denoland#13239.
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…textState` (#17422) The `JsRuntimeState` struct stores a number of JS callbacks that are used either in the event loop or when interacting with V8. Some of these callback fields are vectors of callbacks, and therefore could plausibly store at least one callback per realm. However, some of those fields are `Option<v8::Global<v8::Function>>`, which would make the callbacks set by a realm override the one that might have been set by a different realm. As it turns out, all of the current such optional callbacks (`js_promise_reject_cb`, `js_format_exception_cb` and `js_wasm_streaming_cb`) are only used from inside a realm, and therefore this change makes it so such callbacks can only be set from inside a realm, and will only affect that realm. This is a reland of #15599. Towards #13239.
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The
JsRuntimeStatestruct stores a number of JS callbacks that are used either in the event loop or when interacting with V8. Some of these callback fields are vectors of callbacks, and therefore could plausibly store at least one callback per realm. However, some of those fields areOption<v8::Global<v8::Function>>, which would make the callbacks set by a realm override the one that might have been set by a different realm.As it turns out, all of the current such optional callbacks (
js_promise_reject_cb,js_format_exception_cbandjs_wasm_streaming_cb) are only used from inside a realm, and therefore this change makes it so such callbacks can only be set from inside a realm, and will only affect that realm.This is a reland of #15599.
Towards #13239.