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