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Document Fixup

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Richard Feldman 2022-10-26 10:00:23 -04:00
parent 131c4b2bb1
commit 107f37219f
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9
crates/compiler/parse/src/expr.rs
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@ -1046,6 +1046,15 @@ fn parse_defs_end<'a>(
pub enum Next<'a> { pub enum Next<'a> {
Continue(SingleDef<'a>, State<'a>), Continue(SingleDef<'a>, State<'a>),
/// When we encounter a Body def, we have to check to see if there was an
/// Annotation def right before it. If so, we merge the two into an AnnotatedBody.
///
/// So when parse_single_def returns a Fixup, it means that:
/// 1. This is a Body def.
/// 2. If we're parsing multiple things, we should check whether an Annotation def preceded it.
/// 3. If so, we should merge them into an AnnotatedBody.
///
/// This needs to store the raw Loc<Pattern> and Loc<Expr>.
Fixup( Fixup(
Loc<Pattern<'a>>, Loc<Pattern<'a>>,
Loc<Expr<'a>>, Loc<Expr<'a>>,