refactor(ast, ast_codegen): CloneIn implementations now initialize semantic related cells with Default value.

crates/oxc_ast/src/ast/js.rs

@@ -44,6 +44,7 @@ pub struct Program<'a> {
     pub hashbang: Option<Hashbang<'a>>,
     pub directives: Vec<'a, Directive<'a>>,
     pub body: Vec<'a, Statement<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -235,12 +236,14 @@ pub struct IdentifierReference<'a> {
     /// set in the bind step of semantic analysis, and will always be [`None`]
     /// immediately after parsing.
     #[serde(skip)]
+    #[clone_in(default)]
     pub reference_id: Cell<Option<ReferenceId>>,
     /// Flags indicating how the reference is used.
     ///
     /// This gets set in the bind step of semantic analysis, and will always be
     /// [`ReferenceFlag::None`] immediately after parsing.
     #[serde(skip)]
+    #[clone_in(default)]
     pub reference_flag: ReferenceFlag,
 }
 
@@ -266,6 +269,7 @@ pub struct BindingIdentifier<'a> {
     ///
     /// [`semantic analysis`]: <https://docs.rs/oxc_semantic/latest/oxc_semantic/struct.SemanticBuilder.html>
     #[serde(skip)]
+    #[clone_in(default)]
     pub symbol_id: Cell<Option<SymbolId>>,
 }
 
@@ -1183,6 +1187,7 @@ pub struct BlockStatement<'a> {
     #[serde(flatten)]
     pub span: Span,
     pub body: Vec<'a, Statement<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1357,6 +1362,7 @@ pub struct ForStatement<'a> {
     pub test: Option<Expression<'a>>,
     pub update: Option<Expression<'a>>,
     pub body: Statement<'a>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1392,6 +1398,7 @@ pub struct ForInStatement<'a> {
     pub left: ForStatementLeft<'a>,
     pub right: Expression<'a>,
     pub body: Statement<'a>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1427,6 +1434,7 @@ pub struct ForOfStatement<'a> {
     pub left: ForStatementLeft<'a>,
     pub right: Expression<'a>,
     pub body: Statement<'a>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1492,6 +1500,7 @@ pub struct SwitchStatement<'a> {
     pub discriminant: Expression<'a>,
     #[scope(enter_before)]
     pub cases: Vec<'a, SwitchCase<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1558,6 +1567,7 @@ pub struct CatchClause<'a> {
     pub span: Span,
     pub param: Option<CatchParameter<'a>>,
     pub body: Box<'a, BlockStatement<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1725,6 +1735,7 @@ pub struct Function<'a> {
     pub params: Box<'a, FormalParameters<'a>>,
     pub return_type: Option<Box<'a, TSTypeAnnotation<'a>>>,
     pub body: Option<Box<'a, FunctionBody<'a>>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1821,6 +1832,7 @@ pub struct ArrowFunctionExpression<'a> {
     pub return_type: Option<Box<'a, TSTypeAnnotation<'a>>>,
     /// See `expression` for whether this arrow expression returns an expression.
     pub body: Box<'a, FunctionBody<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1907,6 +1919,7 @@ pub struct Class<'a> {
     pub declare: bool,
     /// Id of the scope created by the [`Class`], including type parameters and
     /// statements within the [`ClassBody`].
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -2163,6 +2176,7 @@ pub struct StaticBlock<'a> {
     #[serde(flatten)]
     pub span: Span,
     pub body: Vec<'a, Statement<'a>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 

crates/oxc_ast/src/ast/ts.rs

@@ -76,6 +76,7 @@ pub struct TSEnumDeclaration<'a> {
     pub members: Vec<'a, TSEnumMember<'a>>,
     pub r#const: bool,
     pub declare: bool,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -313,6 +314,7 @@ pub struct TSConditionalType<'a> {
     pub extends_type: TSType<'a>,
     pub true_type: TSType<'a>,
     pub false_type: TSType<'a>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -757,6 +759,7 @@ pub struct TSTypeAliasDeclaration<'a> {
     pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
     pub type_annotation: TSType<'a>,
     pub declare: bool,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -802,6 +805,7 @@ pub struct TSInterfaceDeclaration<'a> {
     pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
     pub body: Box<'a, TSInterfaceBody<'a>>,
     pub declare: bool,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -910,6 +914,7 @@ pub struct TSMethodSignature<'a> {
     pub params: Box<'a, FormalParameters<'a>>,
     pub return_type: Option<Box<'a, TSTypeAnnotation<'a>>>,
     pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -925,6 +930,7 @@ pub struct TSConstructSignatureDeclaration<'a> {
     pub params: Box<'a, FormalParameters<'a>>,
     pub return_type: Option<Box<'a, TSTypeAnnotation<'a>>>,
     pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1001,6 +1007,7 @@ pub struct TSModuleDeclaration<'a> {
     /// ```
     pub kind: TSModuleDeclarationKind,
     pub declare: bool,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 
@@ -1198,6 +1205,7 @@ pub struct TSMappedType<'a> {
     pub type_annotation: Option<TSType<'a>>,
     pub optional: TSMappedTypeModifierOperator,
     pub readonly: TSMappedTypeModifierOperator,
+    #[clone_in(default)]
     pub scope_id: Cell<Option<ScopeId>>,
 }
 

crates/oxc_ast/src/generated/derive_clone_in.rs

@@ -1,6 +1,7 @@
 // Auto-generated code, DO NOT EDIT DIRECTLY!
 // To edit this generated file you have to edit `tasks/ast_codegen/src/generators/derive_clone_in.rs`
 
+#![allow(clippy::default_trait_access)]
 use oxc_allocator::{Allocator, CloneIn};
 
 #[allow(clippy::wildcard_imports)]
@@ -84,7 +85,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for Program<'old_alloc> {
             hashbang: self.hashbang.clone_in(alloc),
             directives: self.directives.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -170,8 +171,8 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for IdentifierReference<'old_al
         IdentifierReference {
             span: self.span.clone_in(alloc),
             name: self.name.clone_in(alloc),
-            reference_id: self.reference_id.clone_in(alloc),
-            reference_flag: self.reference_flag.clone_in(alloc),
+            reference_id: Default::default(),
+            reference_flag: Default::default(),
         }
     }
 }
@@ -182,7 +183,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for BindingIdentifier<'old_allo
         BindingIdentifier {
             span: self.span.clone_in(alloc),
             name: self.name.clone_in(alloc),
-            symbol_id: self.symbol_id.clone_in(alloc),
+            symbol_id: Default::default(),
         }
     }
 }
@@ -1077,7 +1078,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for BlockStatement<'old_alloc>
         BlockStatement {
             span: self.span.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1212,7 +1213,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for ForStatement<'old_alloc> {
             test: self.test.clone_in(alloc),
             update: self.update.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1307,7 +1308,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for ForInStatement<'old_alloc>
             left: self.left.clone_in(alloc),
             right: self.right.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1362,7 +1363,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for ForOfStatement<'old_alloc>
             left: self.left.clone_in(alloc),
             right: self.right.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1406,7 +1407,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for SwitchStatement<'old_alloc>
             span: self.span.clone_in(alloc),
             discriminant: self.discriminant.clone_in(alloc),
             cases: self.cases.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1459,7 +1460,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for CatchClause<'old_alloc> {
             span: self.span.clone_in(alloc),
             param: self.param.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1576,7 +1577,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for Function<'old_alloc> {
             params: self.params.clone_in(alloc),
             return_type: self.return_type.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1653,7 +1654,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for ArrowFunctionExpression<'ol
             params: self.params.clone_in(alloc),
             return_type: self.return_type.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1684,7 +1685,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for Class<'old_alloc> {
             body: self.body.clone_in(alloc),
             r#abstract: self.r#abstract.clone_in(alloc),
             declare: self.declare.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -1807,7 +1808,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for StaticBlock<'old_alloc> {
         StaticBlock {
             span: self.span.clone_in(alloc),
             body: self.body.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2182,7 +2183,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSEnumDeclaration<'old_allo
             members: self.members.clone_in(alloc),
             r#const: self.r#const.clone_in(alloc),
             declare: self.declare.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2374,7 +2375,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSConditionalType<'old_allo
             extends_type: self.extends_type.clone_in(alloc),
             true_type: self.true_type.clone_in(alloc),
             false_type: self.false_type.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2718,7 +2719,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSTypeAliasDeclaration<'old
             type_parameters: self.type_parameters.clone_in(alloc),
             type_annotation: self.type_annotation.clone_in(alloc),
             declare: self.declare.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2755,7 +2756,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSInterfaceDeclaration<'old
             type_parameters: self.type_parameters.clone_in(alloc),
             body: self.body.clone_in(alloc),
             declare: self.declare.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2847,7 +2848,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSMethodSignature<'old_allo
             params: self.params.clone_in(alloc),
             return_type: self.return_type.clone_in(alloc),
             type_parameters: self.type_parameters.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2860,7 +2861,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSConstructSignatureDeclara
             params: self.params.clone_in(alloc),
             return_type: self.return_type.clone_in(alloc),
             type_parameters: self.type_parameters.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -2918,7 +2919,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSModuleDeclaration<'old_al
             body: self.body.clone_in(alloc),
             kind: self.kind.clone_in(alloc),
             declare: self.declare.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }
@@ -3090,7 +3091,7 @@ impl<'old_alloc, 'new_alloc> CloneIn<'new_alloc> for TSMappedType<'old_alloc> {
             type_annotation: self.type_annotation.clone_in(alloc),
             optional: self.optional.clone_in(alloc),
             readonly: self.readonly.clone_in(alloc),
-            scope_id: self.scope_id.clone_in(alloc),
+            scope_id: Default::default(),
         }
     }
 }

crates/oxc_ast_macros/src/lib.rs

@@ -106,7 +106,7 @@ pub fn ast(_args: TokenStream, input: TokenStream) -> TokenStream {
 /// Does not generate any code.
 /// Only purpose is to allow using `#[scope]`, `#[visit]`, and other attrs in the AST node type defs.
 /// These "marker" attributes are used in codegen.
-#[proc_macro_derive(Ast, attributes(scope, visit, span, serde, tsify, generate_derive))]
+#[proc_macro_derive(Ast, attributes(scope, visit, span, serde, tsify, generate_derive, clone_in))]
 pub fn ast_derive(_item: TokenStream) -> TokenStream {
     TokenStream::new()
 }