| // Simply gives a rought count of the number of nodes in an AST. |
| |
| use crate::visit::*; |
| use crate::ast::*; |
| use syntax_pos::Span; |
| |
| pub struct NodeCounter { |
| pub count: usize, |
| } |
| |
| impl NodeCounter { |
| pub fn new() -> NodeCounter { |
| NodeCounter { |
| count: 0, |
| } |
| } |
| } |
| |
| impl<'ast> Visitor<'ast> for NodeCounter { |
| fn visit_ident(&mut self, ident: Ident) { |
| self.count += 1; |
| walk_ident(self, ident); |
| } |
| fn visit_mod(&mut self, m: &Mod, _s: Span, _a: &[Attribute], _n: NodeId) { |
| self.count += 1; |
| walk_mod(self, m) |
| } |
| fn visit_foreign_item(&mut self, i: &ForeignItem) { |
| self.count += 1; |
| walk_foreign_item(self, i) |
| } |
| fn visit_item(&mut self, i: &Item) { |
| self.count += 1; |
| walk_item(self, i) |
| } |
| fn visit_local(&mut self, l: &Local) { |
| self.count += 1; |
| walk_local(self, l) |
| } |
| fn visit_block(&mut self, b: &Block) { |
| self.count += 1; |
| walk_block(self, b) |
| } |
| fn visit_stmt(&mut self, s: &Stmt) { |
| self.count += 1; |
| walk_stmt(self, s) |
| } |
| fn visit_arm(&mut self, a: &Arm) { |
| self.count += 1; |
| walk_arm(self, a) |
| } |
| fn visit_pat(&mut self, p: &Pat) { |
| self.count += 1; |
| walk_pat(self, p) |
| } |
| fn visit_expr(&mut self, ex: &Expr) { |
| self.count += 1; |
| walk_expr(self, ex) |
| } |
| fn visit_ty(&mut self, t: &Ty) { |
| self.count += 1; |
| walk_ty(self, t) |
| } |
| fn visit_generic_param(&mut self, param: &GenericParam) { |
| self.count += 1; |
| walk_generic_param(self, param) |
| } |
| fn visit_generics(&mut self, g: &Generics) { |
| self.count += 1; |
| walk_generics(self, g) |
| } |
| fn visit_fn(&mut self, fk: FnKind<'_>, fd: &FnDecl, s: Span, _: NodeId) { |
| self.count += 1; |
| walk_fn(self, fk, fd, s) |
| } |
| fn visit_trait_item(&mut self, ti: &TraitItem) { |
| self.count += 1; |
| walk_trait_item(self, ti) |
| } |
| fn visit_impl_item(&mut self, ii: &ImplItem) { |
| self.count += 1; |
| walk_impl_item(self, ii) |
| } |
| fn visit_trait_ref(&mut self, t: &TraitRef) { |
| self.count += 1; |
| walk_trait_ref(self, t) |
| } |
| fn visit_param_bound(&mut self, bounds: &GenericBound) { |
| self.count += 1; |
| walk_param_bound(self, bounds) |
| } |
| fn visit_poly_trait_ref(&mut self, t: &PolyTraitRef, m: &TraitBoundModifier) { |
| self.count += 1; |
| walk_poly_trait_ref(self, t, m) |
| } |
| fn visit_variant_data(&mut self, s: &VariantData) { |
| self.count += 1; |
| walk_struct_def(self, s) |
| } |
| fn visit_struct_field(&mut self, s: &StructField) { |
| self.count += 1; |
| walk_struct_field(self, s) |
| } |
| fn visit_enum_def(&mut self, enum_definition: &EnumDef, |
| generics: &Generics, item_id: NodeId, _: Span) { |
| self.count += 1; |
| walk_enum_def(self, enum_definition, generics, item_id) |
| } |
| fn visit_variant(&mut self, v: &Variant) { |
| self.count += 1; |
| walk_variant(self, v) |
| } |
| fn visit_lifetime(&mut self, lifetime: &Lifetime) { |
| self.count += 1; |
| walk_lifetime(self, lifetime) |
| } |
| fn visit_mac(&mut self, _mac: &Mac) { |
| self.count += 1; |
| walk_mac(self, _mac) |
| } |
| fn visit_path(&mut self, path: &Path, _id: NodeId) { |
| self.count += 1; |
| walk_path(self, path) |
| } |
| fn visit_use_tree(&mut self, use_tree: &UseTree, id: NodeId, _nested: bool) { |
| self.count += 1; |
| walk_use_tree(self, use_tree, id) |
| } |
| fn visit_generic_args(&mut self, path_span: Span, generic_args: &GenericArgs) { |
| self.count += 1; |
| walk_generic_args(self, path_span, generic_args) |
| } |
| fn visit_assoc_ty_constraint(&mut self, constraint: &AssocTyConstraint) { |
| self.count += 1; |
| walk_assoc_ty_constraint(self, constraint) |
| } |
| fn visit_attribute(&mut self, _attr: &Attribute) { |
| self.count += 1; |
| } |
| } |