Module mut_visit

A MutVisitor represents an AST modification; it accepts an AST piece and mutates it in place. So, for instance, macro expansion is a MutVisitor that walks over an AST and modifies it.

Note: using a MutVisitor (other than the MacroExpander MutVisitor) on an AST before macro expansion is probably a bad idea. For instance, a MutVisitor renaming item names in a module will miss all of those that are created by the expansion of a macro.

Enums

FnKind

Traits

DummyAstNode

Some value for the AST node that is valid but possibly meaningless. Similar to Default but not intended for wide use. The value will never be used meaningfully, it exists just to support unwinding in visit_clobber in the case where its closure panics.

ExpectOne

MutVisitor

WalkItemKind

Functions

noop_filter_map_expr

visit_attr_args 🔒

visit_attr_tt 🔒

visit_attr_tts 🔒

visit_attrs 🔒

visit_bounds 🔒

visit_clobber

Use a map-style function (FnOnce(T) -> T) to overwrite a &mut T. Useful when using a flat_map_* or filter_map_* method within a visit_ method.

visit_constness 🔒

visit_defaultness 🔒

visit_delim_args 🔒

visit_delim_span

visit_exprs 🔒

visit_lazy_tts 🔒

visit_lazy_tts_opt_mut 🔒

visit_nonterminal 🔒

Applies the visitor to elements of interpolated nodes.

visit_opt 🔒

visit_polarity 🔒

visit_safety 🔒

visit_thin_exprs 🔒

visit_thin_vec 🔒

visit_token

Applies ident visitor if it’s an ident; applies other visits to interpolated nodes. In practice the ident part is not actually used by specific visitors right now, but there’s a test below checking that it works.

visit_tt 🔒

visit_tts 🔒

visit_vec 🔒

walk_angle_bracketed_parameter_data 🔒

walk_anon_const 🔒

walk_arm

walk_assoc_item

walk_assoc_item_constraint 🔒

walk_attribute 🔒

walk_block

walk_capture_by 🔒

walk_closure_binder 🔒

walk_const_item 🔒

walk_contract 🔒

walk_coroutine_kind 🔒

walk_crate

walk_define_opaques 🔒

walk_expr

walk_expr_field

walk_field_def

walk_flat_map_arm

walk_flat_map_assoc_item

walk_flat_map_expr_field

walk_flat_map_field_def

walk_flat_map_foreign_item

walk_flat_map_generic_param

walk_flat_map_item

walk_flat_map_param

walk_flat_map_pat_field

walk_flat_map_stmt

walk_flat_map_stmt_kind 🔒

walk_flat_map_variant

walk_flat_map_where_predicate

walk_fn 🔒

walk_fn_decl 🔒

walk_fn_header 🔒

walk_fn_ret_ty 🔒

walk_foreign_mod 🔒

walk_format_args 🔒

walk_generic_arg 🔒

walk_generic_args 🔒

walk_generic_param

walk_generics 🔒

walk_ident 🔒

walk_inline_asm 🔒

walk_inline_asm_sym 🔒

walk_item

walk_item_ctxt 🔒

walk_item_kind

walk_label 🔒

walk_lifetime 🔒

walk_local 🔒

walk_mac 🔒

walk_macro_def 🔒

walk_meta_item 🔒

walk_meta_list_item 🔒

walk_modifiers 🔒

walk_mt 🔒

walk_param

walk_param_bound 🔒

walk_parenthesized_parameter_data 🔒

walk_pat

walk_pat_field

walk_path 🔒

walk_path_segment 🔒

walk_poly_trait_ref 🔒

walk_precise_capturing_arg 🔒

walk_qself 🔒

walk_trait_ref 🔒

walk_ty

walk_ty_alias_where_clauses 🔒

walk_ty_pat

walk_use_tree 🔒

walk_variant

walk_variant_data 🔒

walk_vis 🔒

walk_where_clause 🔒

walk_where_predicate_kind