1 // Simply gives a rought count of the number of nodes in an AST.
7 pub struct NodeCounter {
12 pub fn new() -> NodeCounter {
19 impl<'ast> Visitor<'ast> for NodeCounter {
20 fn visit_ident(&mut self, ident: Ident) {
22 walk_ident(self, ident);
24 fn visit_mod(&mut self, m: &Mod, _s: Span, _a: &[Attribute], _n: NodeId) {
28 fn visit_foreign_item(&mut self, i: &ForeignItem) {
30 walk_foreign_item(self, i)
32 fn visit_item(&mut self, i: &Item) {
36 fn visit_local(&mut self, l: &Local) {
40 fn visit_block(&mut self, b: &Block) {
44 fn visit_stmt(&mut self, s: &Stmt) {
48 fn visit_arm(&mut self, a: &Arm) {
52 fn visit_pat(&mut self, p: &Pat) {
56 fn visit_expr(&mut self, ex: &Expr) {
60 fn visit_ty(&mut self, t: &Ty) {
64 fn visit_generic_param(&mut self, param: &GenericParam) {
66 walk_generic_param(self, param)
68 fn visit_generics(&mut self, g: &Generics) {
70 walk_generics(self, g)
72 fn visit_fn(&mut self, fk: FnKind, fd: &FnDecl, s: Span, _: NodeId) {
74 walk_fn(self, fk, fd, s)
76 fn visit_trait_item(&mut self, ti: &TraitItem) {
78 walk_trait_item(self, ti)
80 fn visit_impl_item(&mut self, ii: &ImplItem) {
82 walk_impl_item(self, ii)
84 fn visit_trait_ref(&mut self, t: &TraitRef) {
86 walk_trait_ref(self, t)
88 fn visit_param_bound(&mut self, bounds: &GenericBound) {
90 walk_param_bound(self, bounds)
92 fn visit_poly_trait_ref(&mut self, t: &PolyTraitRef, m: &TraitBoundModifier) {
94 walk_poly_trait_ref(self, t, m)
96 fn visit_variant_data(&mut self, s: &VariantData, _: Ident,
97 _: &Generics, _: NodeId, _: Span) {
99 walk_struct_def(self, s)
101 fn visit_struct_field(&mut self, s: &StructField) {
103 walk_struct_field(self, s)
105 fn visit_enum_def(&mut self, enum_definition: &EnumDef,
106 generics: &Generics, item_id: NodeId, _: Span) {
108 walk_enum_def(self, enum_definition, generics, item_id)
110 fn visit_variant(&mut self, v: &Variant, g: &Generics, item_id: NodeId) {
112 walk_variant(self, v, g, item_id)
114 fn visit_lifetime(&mut self, lifetime: &Lifetime) {
116 walk_lifetime(self, lifetime)
118 fn visit_mac(&mut self, _mac: &Mac) {
122 fn visit_path(&mut self, path: &Path, _id: NodeId) {
124 walk_path(self, path)
126 fn visit_use_tree(&mut self, use_tree: &UseTree, id: NodeId, _nested: bool) {
128 walk_use_tree(self, use_tree, id)
130 fn visit_generic_args(&mut self, path_span: Span, generic_args: &GenericArgs) {
132 walk_generic_args(self, path_span, generic_args)
134 fn visit_assoc_type_binding(&mut self, type_binding: &TypeBinding) {
136 walk_assoc_type_binding(self, type_binding)
138 fn visit_attribute(&mut self, _attr: &Attribute) {