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ast: struct

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This commit is contained in:
John
2025-10-07 05:00:51 -04:00
parent bcabbcd39d
commit 222b2d7b98
6 changed files with 89 additions and 17 deletions
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21
src/ast/macro_matcher.rs
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@@ -159,6 +159,18 @@ impl<A: Annotation> Match<A> for Mod<A> {
}
}
impl<A: Annotation> Match<A> for Struct {
fn recurse(sub: &mut Subst<A>, pat: &Self, expr: &Self) -> bool {
let (Self(pat_pat), Self(expr_pat)) = (pat, expr);
Match::recurse(sub, pat_pat, expr_pat)
}
fn apply(&mut self, sub: &Subst<A>) {
let Self(pat) = self;
pat.apply(sub);
}
}
impl<A: Annotation> Match<A> for Expr<A> {
fn recurse(sub: &mut Subst<A>, pat: &Self, expr: &Self) -> bool {
match (pat, expr) {
@@ -172,6 +184,8 @@ impl<A: Annotation> Match<A> for Expr<A> {
(Expr::Let(..), _) => false,
(Expr::Const(pat), Expr::Const(expr)) => Match::recurse(sub, pat, expr),
(Expr::Const(..), _) => false,
(Expr::Struct(pat), Expr::Struct(expr)) => Match::recurse(sub, pat, expr),
(Expr::Struct(_), _) => false,
(Expr::Make(pat), Expr::Make(expr)) => Match::recurse(sub, pat, expr),
(Expr::Make(..), _) => false,
(Expr::Match(pat), Expr::Match(expr)) => Match::recurse(sub, pat, expr),
@@ -197,6 +211,7 @@ impl<A: Annotation> Match<A> for Expr<A> {
Expr::Id(_) | Expr::Lit(_) => {}
Expr::Let(expr) => expr.apply(sub),
Expr::Const(expr) => expr.apply(sub),
Expr::Struct(expr) => expr.apply(sub),
Expr::Make(expr) => expr.apply(sub),
Expr::Match(expr) => expr.apply(sub),
Expr::Mod(expr) => expr.apply(sub),
@@ -242,6 +257,10 @@ impl<A: Annotation> Match<A> for Pat {
(Pat::Ignore, _) => false,
(Pat::Name(pat), Pat::Name(expr)) => pat == expr,
(Pat::Name(_), _) => false,
(Pat::Struct(_, pat), Pat::Struct(_, expr)) => Match::recurse(sub, pat, expr),
(Pat::Struct(..), _) => false,
(Pat::TupStruct(_, pat), Pat::TupStruct(_, expr)) => Match::recurse(sub, pat, expr),
(Pat::TupStruct(..), _) => false,
(Pat::Rest(pat), Pat::Rest(expr)) => Match::recurse(sub, pat, expr),
(Pat::Rest(_), _) => false,
(Pat::Lit(pat), Pat::Lit(expr)) => pat == expr,
@@ -265,6 +284,8 @@ impl<A: Annotation> Match<A> for Pat {
*self = expr.clone()
}
}
Pat::Struct(_, expr) => expr.apply(sub),
Pat::TupStruct(_, expr) => expr.apply(sub),
Pat::Rest(pat) => pat.apply(sub),
Pat::Tuple(pats) => pats.apply(sub),
Pat::Slice(pats) => pats.apply(sub),