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-rw-r--r--compiler/rustc_hir/src/intravisit.rs742
1 files changed, 372 insertions, 370 deletions
diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs
index be77e6fd3..938ace2c7 100644
--- a/compiler/rustc_hir/src/intravisit.rs
+++ b/compiler/rustc_hir/src/intravisit.rs
@@ -358,13 +358,16 @@ pub trait Visitor<'v>: Sized {
fn visit_where_predicate(&mut self, predicate: &'v WherePredicate<'v>) {
walk_where_predicate(self, predicate)
}
+ fn visit_fn_ret_ty(&mut self, ret_ty: &'v FnRetTy<'v>) {
+ walk_fn_ret_ty(self, ret_ty)
+ }
fn visit_fn_decl(&mut self, fd: &'v FnDecl<'v>) {
walk_fn_decl(self, fd)
}
fn visit_fn(&mut self, fk: FnKind<'v>, fd: &'v FnDecl<'v>, b: BodyId, _: Span, id: HirId) {
walk_fn(self, fk, fd, b, id)
}
- fn visit_use(&mut self, path: &'v Path<'v>, hir_id: HirId) {
+ fn visit_use(&mut self, path: &'v UsePath<'v>, hir_id: HirId) {
walk_use(self, path, hir_id)
}
fn visit_trait_item(&mut self, ti: &'v TraitItem<'v>) {
@@ -410,12 +413,7 @@ pub trait Visitor<'v>: Sized {
walk_inf(self, inf);
}
fn visit_generic_arg(&mut self, generic_arg: &'v GenericArg<'v>) {
- match generic_arg {
- GenericArg::Lifetime(lt) => self.visit_lifetime(lt),
- GenericArg::Type(ty) => self.visit_ty(ty),
- GenericArg::Const(ct) => self.visit_anon_const(&ct.value),
- GenericArg::Infer(inf) => self.visit_infer(inf),
- }
+ walk_generic_arg(self, generic_arg);
}
fn visit_lifetime(&mut self, lifetime: &'v Lifetime) {
walk_lifetime(self, lifetime)
@@ -424,7 +422,7 @@ pub trait Visitor<'v>: Sized {
fn visit_qpath(&mut self, qpath: &'v QPath<'v>, id: HirId, _span: Span) {
walk_qpath(self, qpath, id)
}
- fn visit_path(&mut self, path: &'v Path<'v>, _id: HirId) {
+ fn visit_path(&mut self, path: &Path<'v>, _id: HirId) {
walk_path(self, path)
}
fn visit_path_segment(&mut self, path_segment: &'v PathSegment<'v>) {
@@ -448,66 +446,9 @@ pub trait Visitor<'v>: Sized {
}
}
-pub fn walk_mod<'v, V: Visitor<'v>>(visitor: &mut V, module: &'v Mod<'v>, mod_hir_id: HirId) {
- visitor.visit_id(mod_hir_id);
- for &item_id in module.item_ids {
- visitor.visit_nested_item(item_id);
- }
-}
-
-pub fn walk_body<'v, V: Visitor<'v>>(visitor: &mut V, body: &'v Body<'v>) {
- walk_list!(visitor, visit_param, body.params);
- visitor.visit_expr(&body.value);
-}
-
-pub fn walk_local<'v, V: Visitor<'v>>(visitor: &mut V, local: &'v Local<'v>) {
- // Intentionally visiting the expr first - the initialization expr
- // dominates the local's definition.
- walk_list!(visitor, visit_expr, &local.init);
- visitor.visit_id(local.hir_id);
- visitor.visit_pat(&local.pat);
- if let Some(els) = local.els {
- visitor.visit_block(els);
- }
- walk_list!(visitor, visit_ty, &local.ty);
-}
-
-pub fn walk_ident<'v, V: Visitor<'v>>(visitor: &mut V, ident: Ident) {
- visitor.visit_name(ident.name);
-}
-
-pub fn walk_label<'v, V: Visitor<'v>>(visitor: &mut V, label: &'v Label) {
- visitor.visit_ident(label.ident);
-}
-
-pub fn walk_lifetime<'v, V: Visitor<'v>>(visitor: &mut V, lifetime: &'v Lifetime) {
- visitor.visit_id(lifetime.hir_id);
- match lifetime.name {
- LifetimeName::Param(_, ParamName::Plain(ident)) => {
- visitor.visit_ident(ident);
- }
- LifetimeName::Param(_, ParamName::Fresh)
- | LifetimeName::Param(_, ParamName::Error)
- | LifetimeName::Static
- | LifetimeName::Error
- | LifetimeName::ImplicitObjectLifetimeDefault
- | LifetimeName::Infer => {}
- }
-}
-
-pub fn walk_poly_trait_ref<'v, V: Visitor<'v>>(visitor: &mut V, trait_ref: &'v PolyTraitRef<'v>) {
- walk_list!(visitor, visit_generic_param, trait_ref.bound_generic_params);
- visitor.visit_trait_ref(&trait_ref.trait_ref);
-}
-
-pub fn walk_trait_ref<'v, V: Visitor<'v>>(visitor: &mut V, trait_ref: &'v TraitRef<'v>) {
- visitor.visit_id(trait_ref.hir_ref_id);
- visitor.visit_path(&trait_ref.path, trait_ref.hir_ref_id)
-}
-
pub fn walk_param<'v, V: Visitor<'v>>(visitor: &mut V, param: &'v Param<'v>) {
visitor.visit_id(param.hir_id);
- visitor.visit_pat(&param.pat);
+ visitor.visit_pat(param.pat);
}
pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) {
@@ -529,7 +470,7 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) {
}
ItemKind::Fn(ref sig, ref generics, body_id) => visitor.visit_fn(
FnKind::ItemFn(item.ident, generics, sig.header),
- &sig.decl,
+ sig.decl,
body_id,
item.span,
item.hir_id(),
@@ -601,142 +542,80 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) {
}
}
-pub fn walk_inline_asm<'v, V: Visitor<'v>>(visitor: &mut V, asm: &'v InlineAsm<'v>, id: HirId) {
- for (op, op_sp) in asm.operands {
- match op {
- InlineAsmOperand::In { expr, .. } | InlineAsmOperand::InOut { expr, .. } => {
- visitor.visit_expr(expr)
- }
- InlineAsmOperand::Out { expr, .. } => {
- if let Some(expr) = expr {
- visitor.visit_expr(expr);
- }
- }
- InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
- visitor.visit_expr(in_expr);
- if let Some(out_expr) = out_expr {
- visitor.visit_expr(out_expr);
- }
- }
- InlineAsmOperand::Const { anon_const, .. }
- | InlineAsmOperand::SymFn { anon_const, .. } => visitor.visit_anon_const(anon_const),
- InlineAsmOperand::SymStatic { path, .. } => visitor.visit_qpath(path, id, *op_sp),
- }
- }
-}
-
-pub fn walk_use<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v Path<'v>, hir_id: HirId) {
- visitor.visit_id(hir_id);
- visitor.visit_path(path, hir_id);
+pub fn walk_body<'v, V: Visitor<'v>>(visitor: &mut V, body: &'v Body<'v>) {
+ walk_list!(visitor, visit_param, body.params);
+ visitor.visit_expr(body.value);
}
-pub fn walk_enum_def<'v, V: Visitor<'v>>(
- visitor: &mut V,
- enum_definition: &'v EnumDef<'v>,
- item_id: HirId,
-) {
- visitor.visit_id(item_id);
- walk_list!(visitor, visit_variant, enum_definition.variants);
+pub fn walk_ident<'v, V: Visitor<'v>>(visitor: &mut V, ident: Ident) {
+ visitor.visit_name(ident.name);
}
-pub fn walk_variant<'v, V: Visitor<'v>>(visitor: &mut V, variant: &'v Variant<'v>) {
- visitor.visit_ident(variant.ident);
- visitor.visit_id(variant.id);
- visitor.visit_variant_data(&variant.data);
- walk_list!(visitor, visit_anon_const, &variant.disr_expr);
+pub fn walk_mod<'v, V: Visitor<'v>>(visitor: &mut V, module: &'v Mod<'v>, mod_hir_id: HirId) {
+ visitor.visit_id(mod_hir_id);
+ for &item_id in module.item_ids {
+ visitor.visit_nested_item(item_id);
+ }
}
-pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) {
- visitor.visit_id(typ.hir_id);
+pub fn walk_foreign_item<'v, V: Visitor<'v>>(visitor: &mut V, foreign_item: &'v ForeignItem<'v>) {
+ visitor.visit_id(foreign_item.hir_id());
+ visitor.visit_ident(foreign_item.ident);
- match typ.kind {
- TyKind::Slice(ref ty) => visitor.visit_ty(ty),
- TyKind::Ptr(ref mutable_type) => visitor.visit_ty(&mutable_type.ty),
- TyKind::Rptr(ref lifetime, ref mutable_type) => {
- visitor.visit_lifetime(lifetime);
- visitor.visit_ty(&mutable_type.ty)
- }
- TyKind::Never => {}
- TyKind::Tup(tuple_element_types) => {
- walk_list!(visitor, visit_ty, tuple_element_types);
- }
- TyKind::BareFn(ref function_declaration) => {
- walk_list!(visitor, visit_generic_param, function_declaration.generic_params);
- visitor.visit_fn_decl(&function_declaration.decl);
- }
- TyKind::Path(ref qpath) => {
- visitor.visit_qpath(qpath, typ.hir_id, typ.span);
- }
- TyKind::OpaqueDef(item_id, lifetimes, _in_trait) => {
- visitor.visit_nested_item(item_id);
- walk_list!(visitor, visit_generic_arg, lifetimes);
- }
- TyKind::Array(ref ty, ref length) => {
- visitor.visit_ty(ty);
- visitor.visit_array_length(length)
- }
- TyKind::TraitObject(bounds, ref lifetime, _syntax) => {
- for bound in bounds {
- visitor.visit_poly_trait_ref(bound);
+ match foreign_item.kind {
+ ForeignItemKind::Fn(ref function_declaration, param_names, ref generics) => {
+ visitor.visit_generics(generics);
+ visitor.visit_fn_decl(function_declaration);
+ for &param_name in param_names {
+ visitor.visit_ident(param_name);
}
- visitor.visit_lifetime(lifetime);
}
- TyKind::Typeof(ref expression) => visitor.visit_anon_const(expression),
- TyKind::Infer | TyKind::Err => {}
+ ForeignItemKind::Static(ref typ, _) => visitor.visit_ty(typ),
+ ForeignItemKind::Type => (),
}
}
-pub fn walk_inf<'v, V: Visitor<'v>>(visitor: &mut V, inf: &'v InferArg) {
- visitor.visit_id(inf.hir_id);
-}
-
-pub fn walk_qpath<'v, V: Visitor<'v>>(visitor: &mut V, qpath: &'v QPath<'v>, id: HirId) {
- match *qpath {
- QPath::Resolved(ref maybe_qself, ref path) => {
- walk_list!(visitor, visit_ty, maybe_qself);
- visitor.visit_path(path, id)
- }
- QPath::TypeRelative(ref qself, ref segment) => {
- visitor.visit_ty(qself);
- visitor.visit_path_segment(segment);
- }
- QPath::LangItem(..) => {}
+pub fn walk_local<'v, V: Visitor<'v>>(visitor: &mut V, local: &'v Local<'v>) {
+ // Intentionally visiting the expr first - the initialization expr
+ // dominates the local's definition.
+ walk_list!(visitor, visit_expr, &local.init);
+ visitor.visit_id(local.hir_id);
+ visitor.visit_pat(local.pat);
+ if let Some(els) = local.els {
+ visitor.visit_block(els);
}
+ walk_list!(visitor, visit_ty, &local.ty);
}
-pub fn walk_path<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v Path<'v>) {
- for segment in path.segments {
- visitor.visit_path_segment(segment);
- }
+pub fn walk_block<'v, V: Visitor<'v>>(visitor: &mut V, block: &'v Block<'v>) {
+ visitor.visit_id(block.hir_id);
+ walk_list!(visitor, visit_stmt, block.stmts);
+ walk_list!(visitor, visit_expr, &block.expr);
}
-pub fn walk_path_segment<'v, V: Visitor<'v>>(visitor: &mut V, segment: &'v PathSegment<'v>) {
- visitor.visit_ident(segment.ident);
- visitor.visit_id(segment.hir_id);
- if let Some(ref args) = segment.args {
- visitor.visit_generic_args(args);
+pub fn walk_stmt<'v, V: Visitor<'v>>(visitor: &mut V, statement: &'v Stmt<'v>) {
+ visitor.visit_id(statement.hir_id);
+ match statement.kind {
+ StmtKind::Local(ref local) => visitor.visit_local(local),
+ StmtKind::Item(item) => visitor.visit_nested_item(item),
+ StmtKind::Expr(ref expression) | StmtKind::Semi(ref expression) => {
+ visitor.visit_expr(expression)
+ }
}
}
-pub fn walk_generic_args<'v, V: Visitor<'v>>(visitor: &mut V, generic_args: &'v GenericArgs<'v>) {
- walk_list!(visitor, visit_generic_arg, generic_args.args);
- walk_list!(visitor, visit_assoc_type_binding, generic_args.bindings);
-}
-
-pub fn walk_assoc_type_binding<'v, V: Visitor<'v>>(
- visitor: &mut V,
- type_binding: &'v TypeBinding<'v>,
-) {
- visitor.visit_id(type_binding.hir_id);
- visitor.visit_ident(type_binding.ident);
- visitor.visit_generic_args(type_binding.gen_args);
- match type_binding.kind {
- TypeBindingKind::Equality { ref term } => match term {
- Term::Ty(ref ty) => visitor.visit_ty(ty),
- Term::Const(ref c) => visitor.visit_anon_const(c),
- },
- TypeBindingKind::Constraint { bounds } => walk_list!(visitor, visit_param_bound, bounds),
+pub fn walk_arm<'v, V: Visitor<'v>>(visitor: &mut V, arm: &'v Arm<'v>) {
+ visitor.visit_id(arm.hir_id);
+ visitor.visit_pat(arm.pat);
+ if let Some(ref g) = arm.guard {
+ match g {
+ Guard::If(ref e) => visitor.visit_expr(e),
+ Guard::IfLet(ref l) => {
+ visitor.visit_let_expr(l);
+ }
+ }
}
+ visitor.visit_expr(arm.body);
}
pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) {
@@ -781,36 +660,186 @@ pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) {
pub fn walk_pat_field<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v PatField<'v>) {
visitor.visit_id(field.hir_id);
visitor.visit_ident(field.ident);
- visitor.visit_pat(&field.pat)
+ visitor.visit_pat(field.pat)
}
-pub fn walk_foreign_item<'v, V: Visitor<'v>>(visitor: &mut V, foreign_item: &'v ForeignItem<'v>) {
- visitor.visit_id(foreign_item.hir_id());
- visitor.visit_ident(foreign_item.ident);
+pub fn walk_array_len<'v, V: Visitor<'v>>(visitor: &mut V, len: &'v ArrayLen) {
+ match len {
+ &ArrayLen::Infer(hir_id, _span) => visitor.visit_id(hir_id),
+ ArrayLen::Body(c) => visitor.visit_anon_const(c),
+ }
+}
- match foreign_item.kind {
- ForeignItemKind::Fn(ref function_declaration, param_names, ref generics) => {
- visitor.visit_generics(generics);
- visitor.visit_fn_decl(function_declaration);
- for &param_name in param_names {
- visitor.visit_ident(param_name);
- }
+pub fn walk_anon_const<'v, V: Visitor<'v>>(visitor: &mut V, constant: &'v AnonConst) {
+ visitor.visit_id(constant.hir_id);
+ visitor.visit_nested_body(constant.body);
+}
+
+pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr<'v>) {
+ visitor.visit_id(expression.hir_id);
+ match expression.kind {
+ ExprKind::Box(ref subexpression) => visitor.visit_expr(subexpression),
+ ExprKind::Array(subexpressions) => {
+ walk_list!(visitor, visit_expr, subexpressions);
}
- ForeignItemKind::Static(ref typ, _) => visitor.visit_ty(typ),
- ForeignItemKind::Type => (),
+ ExprKind::ConstBlock(ref anon_const) => visitor.visit_anon_const(anon_const),
+ ExprKind::Repeat(ref element, ref count) => {
+ visitor.visit_expr(element);
+ visitor.visit_array_length(count)
+ }
+ ExprKind::Struct(ref qpath, fields, ref optional_base) => {
+ visitor.visit_qpath(qpath, expression.hir_id, expression.span);
+ walk_list!(visitor, visit_expr_field, fields);
+ walk_list!(visitor, visit_expr, optional_base);
+ }
+ ExprKind::Tup(subexpressions) => {
+ walk_list!(visitor, visit_expr, subexpressions);
+ }
+ ExprKind::Call(ref callee_expression, arguments) => {
+ visitor.visit_expr(callee_expression);
+ walk_list!(visitor, visit_expr, arguments);
+ }
+ ExprKind::MethodCall(ref segment, receiver, arguments, _) => {
+ visitor.visit_path_segment(segment);
+ visitor.visit_expr(receiver);
+ walk_list!(visitor, visit_expr, arguments);
+ }
+ ExprKind::Binary(_, ref left_expression, ref right_expression) => {
+ visitor.visit_expr(left_expression);
+ visitor.visit_expr(right_expression)
+ }
+ ExprKind::AddrOf(_, _, ref subexpression) | ExprKind::Unary(_, ref subexpression) => {
+ visitor.visit_expr(subexpression)
+ }
+ ExprKind::Cast(ref subexpression, ref typ) | ExprKind::Type(ref subexpression, ref typ) => {
+ visitor.visit_expr(subexpression);
+ visitor.visit_ty(typ)
+ }
+ ExprKind::DropTemps(ref subexpression) => {
+ visitor.visit_expr(subexpression);
+ }
+ ExprKind::Let(ref let_expr) => visitor.visit_let_expr(let_expr),
+ ExprKind::If(ref cond, ref then, ref else_opt) => {
+ visitor.visit_expr(cond);
+ visitor.visit_expr(then);
+ walk_list!(visitor, visit_expr, else_opt);
+ }
+ ExprKind::Loop(ref block, ref opt_label, _, _) => {
+ walk_list!(visitor, visit_label, opt_label);
+ visitor.visit_block(block);
+ }
+ ExprKind::Match(ref subexpression, arms, _) => {
+ visitor.visit_expr(subexpression);
+ walk_list!(visitor, visit_arm, arms);
+ }
+ ExprKind::Closure(&Closure {
+ def_id: _,
+ binder: _,
+ bound_generic_params,
+ fn_decl,
+ body,
+ capture_clause: _,
+ fn_decl_span: _,
+ fn_arg_span: _,
+ movability: _,
+ }) => {
+ walk_list!(visitor, visit_generic_param, bound_generic_params);
+ visitor.visit_fn(FnKind::Closure, fn_decl, body, expression.span, expression.hir_id)
+ }
+ ExprKind::Block(ref block, ref opt_label) => {
+ walk_list!(visitor, visit_label, opt_label);
+ visitor.visit_block(block);
+ }
+ ExprKind::Assign(ref lhs, ref rhs, _) => {
+ visitor.visit_expr(rhs);
+ visitor.visit_expr(lhs)
+ }
+ ExprKind::AssignOp(_, ref left_expression, ref right_expression) => {
+ visitor.visit_expr(right_expression);
+ visitor.visit_expr(left_expression);
+ }
+ ExprKind::Field(ref subexpression, ident) => {
+ visitor.visit_expr(subexpression);
+ visitor.visit_ident(ident);
+ }
+ ExprKind::Index(ref main_expression, ref index_expression) => {
+ visitor.visit_expr(main_expression);
+ visitor.visit_expr(index_expression)
+ }
+ ExprKind::Path(ref qpath) => {
+ visitor.visit_qpath(qpath, expression.hir_id, expression.span);
+ }
+ ExprKind::Break(ref destination, ref opt_expr) => {
+ walk_list!(visitor, visit_label, &destination.label);
+ walk_list!(visitor, visit_expr, opt_expr);
+ }
+ ExprKind::Continue(ref destination) => {
+ walk_list!(visitor, visit_label, &destination.label);
+ }
+ ExprKind::Ret(ref optional_expression) => {
+ walk_list!(visitor, visit_expr, optional_expression);
+ }
+ ExprKind::InlineAsm(ref asm) => {
+ visitor.visit_inline_asm(asm, expression.hir_id);
+ }
+ ExprKind::Yield(ref subexpression, _) => {
+ visitor.visit_expr(subexpression);
+ }
+ ExprKind::Lit(_) | ExprKind::Err => {}
}
}
-pub fn walk_param_bound<'v, V: Visitor<'v>>(visitor: &mut V, bound: &'v GenericBound<'v>) {
- match *bound {
- GenericBound::Trait(ref typ, _modifier) => {
- visitor.visit_poly_trait_ref(typ);
+pub fn walk_let_expr<'v, V: Visitor<'v>>(visitor: &mut V, let_expr: &'v Let<'v>) {
+ // match the visit order in walk_local
+ visitor.visit_expr(let_expr.init);
+ visitor.visit_id(let_expr.hir_id);
+ visitor.visit_pat(let_expr.pat);
+ walk_list!(visitor, visit_ty, let_expr.ty);
+}
+
+pub fn walk_expr_field<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v ExprField<'v>) {
+ visitor.visit_id(field.hir_id);
+ visitor.visit_ident(field.ident);
+ visitor.visit_expr(field.expr)
+}
+
+pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) {
+ visitor.visit_id(typ.hir_id);
+
+ match typ.kind {
+ TyKind::Slice(ref ty) => visitor.visit_ty(ty),
+ TyKind::Ptr(ref mutable_type) => visitor.visit_ty(mutable_type.ty),
+ TyKind::Rptr(ref lifetime, ref mutable_type) => {
+ visitor.visit_lifetime(lifetime);
+ visitor.visit_ty(mutable_type.ty)
}
- GenericBound::LangItemTrait(_, _span, hir_id, args) => {
- visitor.visit_id(hir_id);
- visitor.visit_generic_args(args);
+ TyKind::Never => {}
+ TyKind::Tup(tuple_element_types) => {
+ walk_list!(visitor, visit_ty, tuple_element_types);
}
- GenericBound::Outlives(ref lifetime) => visitor.visit_lifetime(lifetime),
+ TyKind::BareFn(ref function_declaration) => {
+ walk_list!(visitor, visit_generic_param, function_declaration.generic_params);
+ visitor.visit_fn_decl(function_declaration.decl);
+ }
+ TyKind::Path(ref qpath) => {
+ visitor.visit_qpath(qpath, typ.hir_id, typ.span);
+ }
+ TyKind::OpaqueDef(item_id, lifetimes, _in_trait) => {
+ visitor.visit_nested_item(item_id);
+ walk_list!(visitor, visit_generic_arg, lifetimes);
+ }
+ TyKind::Array(ref ty, ref length) => {
+ visitor.visit_ty(ty);
+ visitor.visit_array_length(length)
+ }
+ TyKind::TraitObject(bounds, ref lifetime, _syntax) => {
+ for bound in bounds {
+ visitor.visit_poly_trait_ref(bound);
+ }
+ visitor.visit_lifetime(lifetime);
+ }
+ TyKind::Typeof(ref expression) => visitor.visit_anon_const(expression),
+ TyKind::Infer | TyKind::Err => {}
}
}
@@ -875,25 +904,16 @@ pub fn walk_where_predicate<'v, V: Visitor<'v>>(
}
}
-pub fn walk_fn_ret_ty<'v, V: Visitor<'v>>(visitor: &mut V, ret_ty: &'v FnRetTy<'v>) {
- if let FnRetTy::Return(ref output_ty) = *ret_ty {
- visitor.visit_ty(output_ty)
- }
-}
-
pub fn walk_fn_decl<'v, V: Visitor<'v>>(visitor: &mut V, function_declaration: &'v FnDecl<'v>) {
for ty in function_declaration.inputs {
visitor.visit_ty(ty)
}
- walk_fn_ret_ty(visitor, &function_declaration.output)
+ visitor.visit_fn_ret_ty(&function_declaration.output)
}
-pub fn walk_fn_kind<'v, V: Visitor<'v>>(visitor: &mut V, function_kind: FnKind<'v>) {
- match function_kind {
- FnKind::ItemFn(_, generics, ..) => {
- visitor.visit_generics(generics);
- }
- FnKind::Closure | FnKind::Method(..) => {}
+pub fn walk_fn_ret_ty<'v, V: Visitor<'v>>(visitor: &mut V, ret_ty: &'v FnRetTy<'v>) {
+ if let FnRetTy::Return(ref output_ty) = *ret_ty {
+ visitor.visit_ty(output_ty)
}
}
@@ -910,13 +930,30 @@ pub fn walk_fn<'v, V: Visitor<'v>>(
visitor.visit_nested_body(body_id)
}
+pub fn walk_fn_kind<'v, V: Visitor<'v>>(visitor: &mut V, function_kind: FnKind<'v>) {
+ match function_kind {
+ FnKind::ItemFn(_, generics, ..) => {
+ visitor.visit_generics(generics);
+ }
+ FnKind::Closure | FnKind::Method(..) => {}
+ }
+}
+
+pub fn walk_use<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v UsePath<'v>, hir_id: HirId) {
+ visitor.visit_id(hir_id);
+ let UsePath { segments, ref res, span } = *path;
+ for &res in res {
+ visitor.visit_path(&Path { segments, res, span }, hir_id);
+ }
+}
+
pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v TraitItem<'v>) {
// N.B., deliberately force a compilation error if/when new fields are added.
let TraitItem { ident, generics, ref defaultness, ref kind, span, owner_id: _ } = *trait_item;
let hir_id = trait_item.hir_id();
visitor.visit_ident(ident);
- visitor.visit_generics(&generics);
- visitor.visit_defaultness(&defaultness);
+ visitor.visit_generics(generics);
+ visitor.visit_defaultness(defaultness);
match *kind {
TraitItemKind::Const(ref ty, default) => {
visitor.visit_id(hir_id);
@@ -925,13 +962,13 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v Trai
}
TraitItemKind::Fn(ref sig, TraitFn::Required(param_names)) => {
visitor.visit_id(hir_id);
- visitor.visit_fn_decl(&sig.decl);
+ visitor.visit_fn_decl(sig.decl);
for &param_name in param_names {
visitor.visit_ident(param_name);
}
}
TraitItemKind::Fn(ref sig, TraitFn::Provided(body_id)) => {
- visitor.visit_fn(FnKind::Method(ident, sig), &sig.decl, body_id, span, hir_id);
+ visitor.visit_fn(FnKind::Method(ident, sig), sig.decl, body_id, span, hir_id);
}
TraitItemKind::Type(bounds, ref default) => {
visitor.visit_id(hir_id);
@@ -973,7 +1010,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt
ImplItemKind::Fn(ref sig, body_id) => {
visitor.visit_fn(
FnKind::Method(impl_item.ident, sig),
- &sig.decl,
+ sig.decl,
body_id,
impl_item.span,
impl_item.hir_id(),
@@ -1004,6 +1041,29 @@ pub fn walk_impl_item_ref<'v, V: Visitor<'v>>(visitor: &mut V, impl_item_ref: &'
visitor.visit_associated_item_kind(kind);
}
+pub fn walk_trait_ref<'v, V: Visitor<'v>>(visitor: &mut V, trait_ref: &'v TraitRef<'v>) {
+ visitor.visit_id(trait_ref.hir_ref_id);
+ visitor.visit_path(trait_ref.path, trait_ref.hir_ref_id)
+}
+
+pub fn walk_param_bound<'v, V: Visitor<'v>>(visitor: &mut V, bound: &'v GenericBound<'v>) {
+ match *bound {
+ GenericBound::Trait(ref typ, _modifier) => {
+ visitor.visit_poly_trait_ref(typ);
+ }
+ GenericBound::LangItemTrait(_, _span, hir_id, args) => {
+ visitor.visit_id(hir_id);
+ visitor.visit_generic_args(args);
+ }
+ GenericBound::Outlives(ref lifetime) => visitor.visit_lifetime(lifetime),
+ }
+}
+
+pub fn walk_poly_trait_ref<'v, V: Visitor<'v>>(visitor: &mut V, trait_ref: &'v PolyTraitRef<'v>) {
+ walk_list!(visitor, visit_generic_param, trait_ref.bound_generic_params);
+ visitor.visit_trait_ref(&trait_ref.trait_ref);
+}
+
pub fn walk_struct_def<'v, V: Visitor<'v>>(
visitor: &mut V,
struct_definition: &'v VariantData<'v>,
@@ -1015,176 +1075,94 @@ pub fn walk_struct_def<'v, V: Visitor<'v>>(
pub fn walk_field_def<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v FieldDef<'v>) {
visitor.visit_id(field.hir_id);
visitor.visit_ident(field.ident);
- visitor.visit_ty(&field.ty);
+ visitor.visit_ty(field.ty);
}
-pub fn walk_block<'v, V: Visitor<'v>>(visitor: &mut V, block: &'v Block<'v>) {
- visitor.visit_id(block.hir_id);
- walk_list!(visitor, visit_stmt, block.stmts);
- walk_list!(visitor, visit_expr, &block.expr);
+pub fn walk_enum_def<'v, V: Visitor<'v>>(
+ visitor: &mut V,
+ enum_definition: &'v EnumDef<'v>,
+ item_id: HirId,
+) {
+ visitor.visit_id(item_id);
+ walk_list!(visitor, visit_variant, enum_definition.variants);
}
-pub fn walk_stmt<'v, V: Visitor<'v>>(visitor: &mut V, statement: &'v Stmt<'v>) {
- visitor.visit_id(statement.hir_id);
- match statement.kind {
- StmtKind::Local(ref local) => visitor.visit_local(local),
- StmtKind::Item(item) => visitor.visit_nested_item(item),
- StmtKind::Expr(ref expression) | StmtKind::Semi(ref expression) => {
- visitor.visit_expr(expression)
- }
- }
+pub fn walk_variant<'v, V: Visitor<'v>>(visitor: &mut V, variant: &'v Variant<'v>) {
+ visitor.visit_ident(variant.ident);
+ visitor.visit_id(variant.hir_id);
+ visitor.visit_variant_data(&variant.data);
+ walk_list!(visitor, visit_anon_const, &variant.disr_expr);
}
-pub fn walk_array_len<'v, V: Visitor<'v>>(visitor: &mut V, len: &'v ArrayLen) {
- match len {
- &ArrayLen::Infer(hir_id, _span) => visitor.visit_id(hir_id),
- ArrayLen::Body(c) => visitor.visit_anon_const(c),
- }
+pub fn walk_label<'v, V: Visitor<'v>>(visitor: &mut V, label: &'v Label) {
+ visitor.visit_ident(label.ident);
}
-pub fn walk_anon_const<'v, V: Visitor<'v>>(visitor: &mut V, constant: &'v AnonConst) {
- visitor.visit_id(constant.hir_id);
- visitor.visit_nested_body(constant.body);
+pub fn walk_inf<'v, V: Visitor<'v>>(visitor: &mut V, inf: &'v InferArg) {
+ visitor.visit_id(inf.hir_id);
}
-pub fn walk_let_expr<'v, V: Visitor<'v>>(visitor: &mut V, let_expr: &'v Let<'v>) {
- // match the visit order in walk_local
- visitor.visit_expr(let_expr.init);
- visitor.visit_id(let_expr.hir_id);
- visitor.visit_pat(let_expr.pat);
- walk_list!(visitor, visit_ty, let_expr.ty);
+pub fn walk_generic_arg<'v, V: Visitor<'v>>(visitor: &mut V, generic_arg: &'v GenericArg<'v>) {
+ match generic_arg {
+ GenericArg::Lifetime(lt) => visitor.visit_lifetime(lt),
+ GenericArg::Type(ty) => visitor.visit_ty(ty),
+ GenericArg::Const(ct) => visitor.visit_anon_const(&ct.value),
+ GenericArg::Infer(inf) => visitor.visit_infer(inf),
+ }
}
-pub fn walk_expr_field<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v ExprField<'v>) {
- visitor.visit_id(field.hir_id);
- visitor.visit_ident(field.ident);
- visitor.visit_expr(&field.expr)
+pub fn walk_lifetime<'v, V: Visitor<'v>>(visitor: &mut V, lifetime: &'v Lifetime) {
+ visitor.visit_id(lifetime.hir_id);
+ visitor.visit_ident(lifetime.ident);
}
-pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr<'v>) {
- visitor.visit_id(expression.hir_id);
- match expression.kind {
- ExprKind::Box(ref subexpression) => visitor.visit_expr(subexpression),
- ExprKind::Array(subexpressions) => {
- walk_list!(visitor, visit_expr, subexpressions);
- }
- ExprKind::ConstBlock(ref anon_const) => visitor.visit_anon_const(anon_const),
- ExprKind::Repeat(ref element, ref count) => {
- visitor.visit_expr(element);
- visitor.visit_array_length(count)
- }
- ExprKind::Struct(ref qpath, fields, ref optional_base) => {
- visitor.visit_qpath(qpath, expression.hir_id, expression.span);
- walk_list!(visitor, visit_expr_field, fields);
- walk_list!(visitor, visit_expr, optional_base);
- }
- ExprKind::Tup(subexpressions) => {
- walk_list!(visitor, visit_expr, subexpressions);
- }
- ExprKind::Call(ref callee_expression, arguments) => {
- visitor.visit_expr(callee_expression);
- walk_list!(visitor, visit_expr, arguments);
+pub fn walk_qpath<'v, V: Visitor<'v>>(visitor: &mut V, qpath: &'v QPath<'v>, id: HirId) {
+ match *qpath {
+ QPath::Resolved(ref maybe_qself, ref path) => {
+ walk_list!(visitor, visit_ty, maybe_qself);
+ visitor.visit_path(path, id)
}
- ExprKind::MethodCall(ref segment, receiver, arguments, _) => {
+ QPath::TypeRelative(ref qself, ref segment) => {
+ visitor.visit_ty(qself);
visitor.visit_path_segment(segment);
- visitor.visit_expr(receiver);
- walk_list!(visitor, visit_expr, arguments);
- }
- ExprKind::Binary(_, ref left_expression, ref right_expression) => {
- visitor.visit_expr(left_expression);
- visitor.visit_expr(right_expression)
- }
- ExprKind::AddrOf(_, _, ref subexpression) | ExprKind::Unary(_, ref subexpression) => {
- visitor.visit_expr(subexpression)
- }
- ExprKind::Cast(ref subexpression, ref typ) | ExprKind::Type(ref subexpression, ref typ) => {
- visitor.visit_expr(subexpression);
- visitor.visit_ty(typ)
- }
- ExprKind::DropTemps(ref subexpression) => {
- visitor.visit_expr(subexpression);
- }
- ExprKind::Let(ref let_expr) => visitor.visit_let_expr(let_expr),
- ExprKind::If(ref cond, ref then, ref else_opt) => {
- visitor.visit_expr(cond);
- visitor.visit_expr(then);
- walk_list!(visitor, visit_expr, else_opt);
- }
- ExprKind::Loop(ref block, ref opt_label, _, _) => {
- walk_list!(visitor, visit_label, opt_label);
- visitor.visit_block(block);
- }
- ExprKind::Match(ref subexpression, arms, _) => {
- visitor.visit_expr(subexpression);
- walk_list!(visitor, visit_arm, arms);
- }
- ExprKind::Closure(&Closure {
- binder: _,
- bound_generic_params,
- fn_decl,
- body,
- capture_clause: _,
- fn_decl_span: _,
- movability: _,
- }) => {
- walk_list!(visitor, visit_generic_param, bound_generic_params);
- visitor.visit_fn(FnKind::Closure, fn_decl, body, expression.span, expression.hir_id)
- }
- ExprKind::Block(ref block, ref opt_label) => {
- walk_list!(visitor, visit_label, opt_label);
- visitor.visit_block(block);
- }
- ExprKind::Assign(ref lhs, ref rhs, _) => {
- visitor.visit_expr(rhs);
- visitor.visit_expr(lhs)
- }
- ExprKind::AssignOp(_, ref left_expression, ref right_expression) => {
- visitor.visit_expr(right_expression);
- visitor.visit_expr(left_expression);
- }
- ExprKind::Field(ref subexpression, ident) => {
- visitor.visit_expr(subexpression);
- visitor.visit_ident(ident);
- }
- ExprKind::Index(ref main_expression, ref index_expression) => {
- visitor.visit_expr(main_expression);
- visitor.visit_expr(index_expression)
- }
- ExprKind::Path(ref qpath) => {
- visitor.visit_qpath(qpath, expression.hir_id, expression.span);
- }
- ExprKind::Break(ref destination, ref opt_expr) => {
- walk_list!(visitor, visit_label, &destination.label);
- walk_list!(visitor, visit_expr, opt_expr);
- }
- ExprKind::Continue(ref destination) => {
- walk_list!(visitor, visit_label, &destination.label);
- }
- ExprKind::Ret(ref optional_expression) => {
- walk_list!(visitor, visit_expr, optional_expression);
}
- ExprKind::InlineAsm(ref asm) => {
- visitor.visit_inline_asm(asm, expression.hir_id);
- }
- ExprKind::Yield(ref subexpression, _) => {
- visitor.visit_expr(subexpression);
- }
- ExprKind::Lit(_) | ExprKind::Err => {}
+ QPath::LangItem(..) => {}
}
}
-pub fn walk_arm<'v, V: Visitor<'v>>(visitor: &mut V, arm: &'v Arm<'v>) {
- visitor.visit_id(arm.hir_id);
- visitor.visit_pat(&arm.pat);
- if let Some(ref g) = arm.guard {
- match g {
- Guard::If(ref e) => visitor.visit_expr(e),
- Guard::IfLet(ref l) => {
- visitor.visit_let_expr(l);
- }
- }
+pub fn walk_path<'v, V: Visitor<'v>>(visitor: &mut V, path: &Path<'v>) {
+ for segment in path.segments {
+ visitor.visit_path_segment(segment);
+ }
+}
+
+pub fn walk_path_segment<'v, V: Visitor<'v>>(visitor: &mut V, segment: &'v PathSegment<'v>) {
+ visitor.visit_ident(segment.ident);
+ visitor.visit_id(segment.hir_id);
+ if let Some(ref args) = segment.args {
+ visitor.visit_generic_args(args);
+ }
+}
+
+pub fn walk_generic_args<'v, V: Visitor<'v>>(visitor: &mut V, generic_args: &'v GenericArgs<'v>) {
+ walk_list!(visitor, visit_generic_arg, generic_args.args);
+ walk_list!(visitor, visit_assoc_type_binding, generic_args.bindings);
+}
+
+pub fn walk_assoc_type_binding<'v, V: Visitor<'v>>(
+ visitor: &mut V,
+ type_binding: &'v TypeBinding<'v>,
+) {
+ visitor.visit_id(type_binding.hir_id);
+ visitor.visit_ident(type_binding.ident);
+ visitor.visit_generic_args(type_binding.gen_args);
+ match type_binding.kind {
+ TypeBindingKind::Equality { ref term } => match term {
+ Term::Ty(ref ty) => visitor.visit_ty(ty),
+ Term::Const(ref c) => visitor.visit_anon_const(c),
+ },
+ TypeBindingKind::Constraint { bounds } => walk_list!(visitor, visit_param_bound, bounds),
}
- visitor.visit_expr(&arm.body);
}
pub fn walk_associated_item_kind<'v, V: Visitor<'v>>(_: &mut V, _: &'v AssocItemKind) {
@@ -1198,3 +1176,27 @@ pub fn walk_defaultness<'v, V: Visitor<'v>>(_: &mut V, _: &'v Defaultness) {
// the right thing to do, should content be added in the future,
// would be to walk it.
}
+
+pub fn walk_inline_asm<'v, V: Visitor<'v>>(visitor: &mut V, asm: &'v InlineAsm<'v>, id: HirId) {
+ for (op, op_sp) in asm.operands {
+ match op {
+ InlineAsmOperand::In { expr, .. } | InlineAsmOperand::InOut { expr, .. } => {
+ visitor.visit_expr(expr)
+ }
+ InlineAsmOperand::Out { expr, .. } => {
+ if let Some(expr) = expr {
+ visitor.visit_expr(expr);
+ }
+ }
+ InlineAsmOperand::SplitInOut { in_expr, out_expr, .. } => {
+ visitor.visit_expr(in_expr);
+ if let Some(out_expr) = out_expr {
+ visitor.visit_expr(out_expr);
+ }
+ }
+ InlineAsmOperand::Const { anon_const, .. }
+ | InlineAsmOperand::SymFn { anon_const, .. } => visitor.visit_anon_const(anon_const),
+ InlineAsmOperand::SymStatic { path, .. } => visitor.visit_qpath(path, id, *op_sp),
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-17 09:09:17 +0000