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docs(semantic): document the meaning of ReferenceFlags::Read and Write (#7368)

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closes #5165
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Boshen 2024-11-20 09:18:25 +00:00
parent 82773cb455
commit 9b9d02078c
1 changed files with 23 additions and 1 deletions
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24
crates/oxc_syntax/src/reference.rs
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@ -76,9 +76,31 @@ bitflags! {
#[cfg_attr(feature = "serialize", derive(Serialize))] #[cfg_attr(feature = "serialize", derive(Serialize))]
pub struct ReferenceFlags: u8 { pub struct ReferenceFlags: u8 {
const None = 0; const None = 0;
/// A symbol is being read as a Value /// A symbol is being read as a Value.
///
/// This value can be derived from the spec:
///
/// Under `Runtime Semantics: Evaluation`, when [`GetValue`](https://tc39.es/ecma262/#sec-getvalue) is called
/// on a expression, and the expression is an `IdentifierReference`.
///
/// For example:
/// ```text
/// 1. Let lRef be ? Evaluation of Expression.
/// 2. Perform ? GetValue(lRef).
/// ```
const Read = 1 << 0; const Read = 1 << 0;
/// A symbol is being written to in a Value context. /// A symbol is being written to in a Value context.
///
/// This value can be derived from the spec:
///
/// Under `Runtime Semantics: Evaluation`, when [`PutValue`](https://tc39.es/ecma262/#sec-putvalue) is called
/// on a expression, and the expression is an `IdentifierReference`.
///
/// For example:
/// ```text
/// 1. Let lhs be ? Evaluation of LeftHandSideExpression.
/// 2. Perform ? PutValue(lhs, newValue).
/// ```
const Write = 1 << 1; const Write = 1 << 1;
/// Used in type definitions. /// Used in type definitions.
const Type = 1 << 2; const Type = 1 << 2;