refactor(linter, mangler, parser, semantic, transformer, traverse, wa…

…sm): rename various `flag` vars to `flags` (#5028)

Part of #4991.

crates/oxc_linter/src/rules/nextjs/no_duplicate_head.rs

@@ -47,8 +47,8 @@ impl Rule for NoDuplicateHead {
             return;
         }
 
-        let flag = symbols.get_flag(symbol_id);
-        if !flag.is_import() {
+        let flags = symbols.get_flag(symbol_id);
+        if !flags.is_import() {
             return;
         }
 

crates/oxc_mangler/src/lib.rs

@@ -198,9 +198,9 @@ impl Mangler {
     ) -> Vec<SlotFrequency> {
         let mut frequencies = vec![SlotFrequency::default(); total_number_of_slots];
         for (symbol_id, slot) in slots.iter_enumerated() {
-            let symbol_flag = symbol_table.get_flag(symbol_id);
+            let symbol_flags = symbol_table.get_flag(symbol_id);
             // omit renaming `export { x }`
-            if !symbol_flag.is_variable() || symbol_flag.is_export() {
+            if !symbol_flags.is_variable() || symbol_flags.is_export() {
                 continue;
             }
             let index = *slot;

crates/oxc_parser/src/modifiers.rs

@@ -297,12 +297,12 @@ impl<'a> ParserImpl<'a> {
         let mut modifiers = self.ast.vec();
         while self.at_modifier() {
             let span = self.start_span();
-            let modifier_flag = self.cur_kind().into();
+            let modifier_flags = self.cur_kind().into();
             let kind = self.cur_kind();
             self.bump_any();
             let modifier = self.modifier(kind, self.end_span(span))?;
             self.check_for_duplicate_modifiers(flags, &modifier);
-            flags.set(modifier_flag, true);
+            flags.set(modifier_flags, true);
             modifiers.push(modifier);
         }
         Ok(Modifiers::new(modifiers, flags))

crates/oxc_semantic/src/binder.rs

@@ -52,8 +52,8 @@ impl<'a> Binder<'a> for VariableDeclarator<'a> {
 
         // Collect all scopes where variable hoisting can occur
         for scope_id in builder.scope.ancestors(target_scope_id) {
-            let flag = builder.scope.get_flags(scope_id);
-            if flag.is_var() {
+            let flags = builder.scope.get_flags(scope_id);
+            if flags.is_var() {
                 target_scope_id = scope_id;
                 break;
             }
@@ -181,10 +181,10 @@ impl<'a> Binder<'a> for Function<'a> {
         if let Some(AstKind::ObjectProperty(prop)) =
             builder.nodes.parent_kind(builder.current_node_id)
         {
-            let flag = builder.scope.get_flags_mut(current_scope_id);
+            let flags = builder.scope.get_flags_mut(current_scope_id);
             match prop.kind {
-                PropertyKind::Get => *flag |= ScopeFlags::GetAccessor,
-                PropertyKind::Set => *flag |= ScopeFlags::SetAccessor,
+                PropertyKind::Get => *flags |= ScopeFlags::GetAccessor,
+                PropertyKind::Set => *flags |= ScopeFlags::SetAccessor,
                 PropertyKind::Init => {}
             };
         }

crates/oxc_semantic/src/builder.rs

@@ -345,9 +345,9 @@ impl<'a> SemanticBuilder<'a> {
         self.current_scope_flags().is_strict_mode()
     }
 
-    pub(crate) fn set_function_node_flag(&mut self, flag: NodeFlags) {
+    pub(crate) fn set_function_node_flag(&mut self, flags: NodeFlags) {
         if let Some(current_function) = self.function_stack.last() {
-            *self.nodes.get_node_mut(*current_function).flags_mut() |= flag;
+            *self.nodes.get_node_mut(*current_function).flags_mut() |= flags;
         }
     }
 
@@ -464,20 +464,20 @@ impl<'a> SemanticBuilder<'a> {
             // If unresolved, transfer it to parent scope's unresolved references.
             let bindings = self.scope.get_bindings(self.current_scope_id);
             if let Some(symbol_id) = bindings.get(name.as_str()).copied() {
-                let symbol_flag = self.symbols.get_flag(symbol_id);
+                let symbol_flags = self.symbols.get_flag(symbol_id);
 
                 let resolved_references = &mut self.symbols.resolved_references[symbol_id];
 
                 references.retain(|&reference_id| {
                     let reference = &mut self.symbols.references[reference_id];
-                    let flag = reference.flags();
-                    if flag.is_type() && symbol_flag.can_be_referenced_by_type()
-                        || flag.is_value() && symbol_flag.can_be_referenced_by_value()
-                        || flag.is_ts_type_query() && symbol_flag.is_import()
+                    let flags = reference.flags();
+                    if flags.is_type() && symbol_flags.can_be_referenced_by_type()
+                        || flags.is_value() && symbol_flags.can_be_referenced_by_value()
+                        || flags.is_ts_type_query() && symbol_flags.is_import()
                     {
                         // The non type-only ExportSpecifier can reference a type/value symbol,
                         // If the symbol is a value symbol and reference flag is not type-only, remove the type flag.
-                        if symbol_flag.is_value() && !flag.is_type_only() {
+                        if symbol_flags.is_value() && !flags.is_type_only() {
                             *reference.flags_mut() -= ReferenceFlags::Type;
                         } else {
                             // If the symbol is a type symbol and reference flag is not type-only, remove the value flag.
@@ -487,7 +487,7 @@ impl<'a> SemanticBuilder<'a> {
                         // import type { T } from './mod'; type A = typeof T
                         //                                                 ^ can reference type-only import
                         // If symbol is type-import, we need to replace the ReferenceFlags::Value with ReferenceFlags::Type
-                        if flag.is_ts_type_query() && symbol_flag.is_type_import() {
+                        if flags.is_ts_type_query() && symbol_flags.is_type_import() {
                             *reference.flags_mut() -= ReferenceFlags::Value;
                             *reference.flags_mut() |= ReferenceFlags::Type;
                         }
@@ -2004,8 +2004,8 @@ impl<'a> SemanticBuilder<'a> {
     }
 
     fn reference_identifier(&mut self, ident: &IdentifierReference<'a>) {
-        let flag = self.resolve_reference_usages();
-        let reference = Reference::new(self.current_node_id, flag);
+        let flags = self.resolve_reference_usages();
+        let reference = Reference::new(self.current_node_id, flags);
         let reference_id = self.declare_reference(ident.name.clone(), reference);
         ident.reference_id.set(Some(reference_id));
     }

crates/oxc_semantic/src/symbol.rs

@@ -144,13 +144,13 @@ impl SymbolTable {
         &mut self,
         span: Span,
         name: CompactStr,
-        flag: SymbolFlags,
+        flags: SymbolFlags,
         scope_id: ScopeId,
         node_id: AstNodeId,
     ) -> SymbolId {
         self.spans.push(span);
         self.names.push(name);
-        self.flags.push(flag);
+        self.flags.push(flags);
         self.scope_ids.push(scope_id);
         self.declarations.push(node_id);
         self.resolved_references.push(vec![]);

crates/oxc_semantic/tests/main.rs

@@ -14,14 +14,14 @@ fn get_scope_snapshot(semantic: &Semantic, scopes: impl Iterator<Item = ScopeId>
         if index != 0 {
             result.push(',');
         }
-        let flag = semantic.scopes().get_flags(scope_id);
+        let flags = semantic.scopes().get_flags(scope_id);
         result.push('{');
         if let Some(child_ids) = semantic.scopes().get_child_ids(scope_id) {
             result.push_str("\"children\":");
             result.push_str(&get_scope_snapshot(semantic, child_ids.iter().copied()));
             result.push(',');
         }
-        result.push_str(format!("\"flag\": \"{flag:?}\",").as_str());
+        result.push_str(format!("\"flag\": \"{flags:?}\",").as_str());
         result.push_str(format!("\"id\": {},", scope_id.index()).as_str());
         result.push_str(
             format!(

crates/oxc_transformer/src/es2016/exponentiation_operator.rs

@@ -37,8 +37,8 @@ impl<'a> ExponentiationOperator<'a> {
     ) -> IdentifierReference<'a> {
         let reference = ctx.symbols().get_reference(ident.reference_id.get().unwrap());
         let symbol_id = reference.symbol_id();
-        let flag = reference.flags();
-        ctx.create_reference_id(ident.span, ident.name.clone(), symbol_id, flag)
+        let flags = reference.flags();
+        ctx.create_reference_id(ident.span, ident.name.clone(), symbol_id, flags)
     }
 
     fn clone_expression(expr: &Expression<'a>, ctx: &mut TraverseCtx<'a>) -> Expression<'a> {

crates/oxc_transformer/src/es2021/logical_assignment_operators.rs

@@ -80,8 +80,8 @@ impl<'a> LogicalAssignmentOperators<'a> {
     ) -> IdentifierReference<'a> {
         let reference = ctx.symbols().get_reference(ident.reference_id.get().unwrap());
         let symbol_id = reference.symbol_id();
-        let flag = reference.flags();
-        ctx.create_reference_id(ident.span, ident.name.clone(), symbol_id, flag)
+        let flags = reference.flags();
+        ctx.create_reference_id(ident.span, ident.name.clone(), symbol_id, flags)
     }
 
     pub fn maybe_generate_memoised(

crates/oxc_transformer/src/helpers/bindings.rs

@@ -135,9 +135,9 @@ impl<'a> BoundIdentifier<'a> {
     pub fn create_spanned_reference(
         &self,
         span: Span,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
         ctx: &mut TraverseCtx<'a>,
     ) -> IdentifierReference<'a> {
-        ctx.create_bound_reference_id(span, self.name.clone(), self.symbol_id, flag)
+        ctx.create_bound_reference_id(span, self.name.clone(), self.symbol_id, flags)
     }
 }

crates/oxc_traverse/src/context/mod.rs

@@ -320,9 +320,9 @@ impl<'a> TraverseCtx<'a> {
     pub fn create_bound_reference(
         &mut self,
         symbol_id: SymbolId,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> ReferenceId {
-        self.scoping.create_bound_reference(symbol_id, flag)
+        self.scoping.create_bound_reference(symbol_id, flags)
     }
 
     /// Create an `IdentifierReference` bound to a `SymbolId`.
@@ -333,9 +333,9 @@ impl<'a> TraverseCtx<'a> {
         span: Span,
         name: Atom<'a>,
         symbol_id: SymbolId,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> IdentifierReference<'a> {
-        self.scoping.create_bound_reference_id(span, name, symbol_id, flag)
+        self.scoping.create_bound_reference_id(span, name, symbol_id, flags)
     }
 
     /// Create an unbound reference.
@@ -344,9 +344,9 @@ impl<'a> TraverseCtx<'a> {
     pub fn create_unbound_reference(
         &mut self,
         name: CompactStr,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> ReferenceId {
-        self.scoping.create_unbound_reference(name, flag)
+        self.scoping.create_unbound_reference(name, flags)
     }
 
     /// Create an unbound `IdentifierReference`.
@@ -356,9 +356,9 @@ impl<'a> TraverseCtx<'a> {
         &mut self,
         span: Span,
         name: Atom<'a>,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> IdentifierReference<'a> {
-        self.scoping.create_unbound_reference_id(span, name, flag)
+        self.scoping.create_unbound_reference_id(span, name, flags)
     }
 
     /// Create a reference optionally bound to a `SymbolId`.
@@ -371,9 +371,9 @@ impl<'a> TraverseCtx<'a> {
         &mut self,
         name: CompactStr,
         symbol_id: Option<SymbolId>,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> ReferenceId {
-        self.scoping.create_reference(name, symbol_id, flag)
+        self.scoping.create_reference(name, symbol_id, flags)
     }
 
     /// Create an `IdentifierReference` optionally bound to a `SymbolId`.
@@ -387,9 +387,9 @@ impl<'a> TraverseCtx<'a> {
         span: Span,
         name: Atom<'a>,
         symbol_id: Option<SymbolId>,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> IdentifierReference<'a> {
-        self.scoping.create_reference_id(span, name, symbol_id, flag)
+        self.scoping.create_reference_id(span, name, symbol_id, flags)
     }
 
     /// Create reference in current scope, looking up binding for `name`,
@@ -398,9 +398,9 @@ impl<'a> TraverseCtx<'a> {
     pub fn create_reference_in_current_scope(
         &mut self,
         name: CompactStr,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> ReferenceId {
-        self.scoping.create_reference_in_current_scope(name, flag)
+        self.scoping.create_reference_in_current_scope(name, flags)
     }
 
     /// Clone `IdentifierReference` based on the original reference's `SymbolId` and name.
@@ -413,9 +413,9 @@ impl<'a> TraverseCtx<'a> {
     pub fn clone_identifier_reference(
         &mut self,
         ident: &IdentifierReference<'a>,
-        flag: ReferenceFlags,
+        flags: ReferenceFlags,
     ) -> IdentifierReference<'a> {
-        self.scoping.clone_identifier_reference(ident, flag)
+        self.scoping.clone_identifier_reference(ident, flags)
     }
 }