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@ -13,7 +13,7 @@ use crate::{
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BoaProfiler, Context, JsResult, |
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}; |
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use super::PROTOTYPE; |
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use super::{JsPrototype, PROTOTYPE}; |
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pub(super) mod arguments; |
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pub(super) mod array; |
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@ -31,7 +31,7 @@ impl JsObject {
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/// [spec]: https://tc39.es/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots-getprototypeof
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#[inline] |
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#[track_caller] |
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pub(crate) fn __get_prototype_of__(&self, context: &mut Context) -> JsResult<JsValue> { |
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pub(crate) fn __get_prototype_of__(&self, context: &mut Context) -> JsResult<JsPrototype> { |
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let func = self.borrow().data.internal_methods.__get_prototype_of__; |
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func(self, context) |
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} |
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@ -47,7 +47,7 @@ impl JsObject {
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#[inline] |
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pub(crate) fn __set_prototype_of__( |
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&mut self, |
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val: JsValue, |
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val: JsPrototype, |
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context: &mut Context, |
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) -> JsResult<bool> { |
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let func = self.borrow().data.internal_methods.__set_prototype_of__; |
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@ -245,8 +245,8 @@ pub(crate) static ORDINARY_INTERNAL_METHODS: InternalObjectMethods = InternalObj
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/// For a guide on how to implement exotic internal methods, see `ORDINARY_INTERNAL_METHODS`.
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#[derive(Clone, Copy)] |
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pub(crate) struct InternalObjectMethods { |
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pub(crate) __get_prototype_of__: fn(&JsObject, &mut Context) -> JsResult<JsValue>, |
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pub(crate) __set_prototype_of__: fn(&JsObject, JsValue, &mut Context) -> JsResult<bool>, |
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pub(crate) __get_prototype_of__: fn(&JsObject, &mut Context) -> JsResult<JsPrototype>, |
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pub(crate) __set_prototype_of__: fn(&JsObject, JsPrototype, &mut Context) -> JsResult<bool>, |
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pub(crate) __is_extensible__: fn(&JsObject, &mut Context) -> JsResult<bool>, |
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pub(crate) __prevent_extensions__: fn(&JsObject, &mut Context) -> JsResult<bool>, |
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pub(crate) __get_own_property__: |
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@ -271,9 +271,9 @@ pub(crate) struct InternalObjectMethods {
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pub(crate) fn ordinary_get_prototype_of( |
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obj: &JsObject, |
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_context: &mut Context, |
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) -> JsResult<JsValue> { |
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) -> JsResult<JsPrototype> { |
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// 1. Return O.[[Prototype]].
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Ok(obj.borrow().prototype.clone()) |
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Ok(obj.prototype().as_ref().cloned()) |
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} |
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/// Abstract operation `OrdinarySetPrototypeOf`.
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@ -285,23 +285,23 @@ pub(crate) fn ordinary_get_prototype_of(
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#[inline] |
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pub(crate) fn ordinary_set_prototype_of( |
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obj: &JsObject, |
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val: JsValue, |
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context: &mut Context, |
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val: JsPrototype, |
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_: &mut Context, |
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) -> JsResult<bool> { |
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// 1. Assert: Either Type(V) is Object or Type(V) is Null.
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debug_assert!(val.is_object() || val.is_null()); |
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{ |
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// 2. Let current be O.[[Prototype]].
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let current = obj.prototype(); |
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// 2. Let current be O.[[Prototype]].
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let current = obj.__get_prototype_of__(context)?; |
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// 3. If SameValue(V, current) is true, return true.
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if JsValue::same_value(¤t, &val) { |
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return Ok(true); |
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// 3. If SameValue(V, current) is true, return true.
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if val == *current { |
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return Ok(true); |
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} |
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} |
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// 4. Let extensible be O.[[Extensible]].
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// 5. If extensible is false, return false.
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if !obj.__is_extensible__(context)? { |
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if !obj.extensible() { |
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return Ok(false); |
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} |
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@ -309,37 +309,29 @@ pub(crate) fn ordinary_set_prototype_of(
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let mut p = val.clone(); |
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// 7. Let done be false.
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let mut done = false; |
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// 8. Repeat, while done is false,
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while !done { |
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match p { |
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// a. If p is null, set done to true.
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JsValue::Null => done = true, |
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JsValue::Object(ref proto) => { |
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// b. Else if SameValue(p, O) is true, return false.
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if JsObject::equals(proto, obj) { |
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return Ok(false); |
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} |
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// c. Else,
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// i. If p.[[GetPrototypeOf]] is not the ordinary object internal method defined
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// in 10.1.1, set done to true.
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else if proto.borrow().data.internal_methods.__get_prototype_of__ as usize |
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!= ordinary_get_prototype_of as usize |
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{ |
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done = true; |
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} |
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// ii. Else, set p to p.[[Prototype]].
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else { |
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p = proto.__get_prototype_of__(context)?; |
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} |
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} |
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_ => unreachable!(), |
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// a. If p is null, set done to true.
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while let Some(proto) = p { |
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// b. Else if SameValue(p, O) is true, return false.
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if &proto == obj { |
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return Ok(false); |
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} |
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// c. Else,
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// i. If p.[[GetPrototypeOf]] is not the ordinary object internal method defined
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// in 10.1.1, set done to true.
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else if proto.borrow().data.internal_methods.__get_prototype_of__ as usize |
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!= ordinary_get_prototype_of as usize |
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{ |
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break; |
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} |
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// ii. Else, set p to p.[[Prototype]].
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else { |
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p = proto.prototype().clone(); |
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} |
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} |
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// 9. Set O.[[Prototype]] to V.
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obj.borrow_mut().prototype = val; |
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obj.set_prototype(val); |
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// 10. Return true.
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Ok(true) |
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@ -454,7 +446,7 @@ pub(crate) fn ordinary_has_property(
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let parent = obj.__get_prototype_of__(context)?; |
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// 5. If parent is not null, then
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if let JsValue::Object(ref object) = parent { |
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if let Some(object) = parent { |
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// a. Return ? parent.[[HasProperty]](P).
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object.__has_property__(key, context) |
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} else { |
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@ -483,7 +475,7 @@ pub(crate) fn ordinary_get(
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// If desc is undefined, then
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None => { |
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// a. Let parent be ? O.[[GetPrototypeOf]]().
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if let Some(parent) = obj.__get_prototype_of__(context)?.as_object() { |
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if let Some(parent) = obj.__get_prototype_of__(context)? { |
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// c. Return ? parent.[[Get]](P, Receiver).
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parent.__get__(key, receiver, context) |
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} |
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@ -537,7 +529,7 @@ pub(crate) fn ordinary_set(
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// 2. If ownDesc is undefined, then
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// a. Let parent be ? O.[[GetPrototypeOf]]().
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// b. If parent is not null, then
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else if let Some(ref mut parent) = obj.__get_prototype_of__(context)?.as_object() { |
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else if let Some(parent) = obj.__get_prototype_of__(context)? { |
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// i. Return ? parent.[[Set]](P, V, Receiver).
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return parent.__set__(key, value, receiver, context); |
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} |
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jedel1043
3 years ago
committed by
GitHub