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conlang: Introduce ..rest Patterns, refactor Ranges

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John
2025-02-23 02:41:41 -06:00
parent cc6168b55e
commit 7d3f189100
12 changed files with 162 additions and 73 deletions
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2
compiler/cl-ast/src/ast_visitor/fold.rs
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@@ -246,6 +246,8 @@ pub trait Fold {
match p {
Pattern::Name(sym) => Pattern::Name(self.fold_sym(sym)),
Pattern::Literal(literal) => Pattern::Literal(self.fold_literal(literal)),
Pattern::Rest(Some(name)) => Pattern::Rest(Some(self.fold_pattern(*name).into())),
Pattern::Rest(None) => Pattern::Rest(None),
Pattern::Ref(mutability, pattern) => Pattern::Ref(
self.fold_mutability(mutability),
Box::new(self.fold_pattern(*pattern)),

4
compiler/cl-ast/src/ast_visitor/visit.rs
View File

@@ -211,6 +211,8 @@ pub trait Visit<'a>: Sized {
match p {
Pattern::Name(name) => self.visit_sym(name),
Pattern::Literal(literal) => self.visit_literal(literal),
Pattern::Rest(Some(name)) => self.visit_pattern(name),
Pattern::Rest(None) => {}
Pattern::Ref(mutability, pattern) => {
self.visit_mutability(mutability);
self.visit_pattern(pattern);
@@ -247,7 +249,7 @@ pub trait Visit<'a>: Sized {
self.visit_pattern(pat);
self.visit_expr(expr);
}
fn visit_assign(&mut self, a: &'a Assign) {
let Assign { parts } = a;
let (head, tail) = parts.as_ref();