Module syntax::fold

Unstable (rustc_private)

A Folder represents an AST->AST fold; it accepts an AST piece, and returns a piece of the same type. So, for instance, macro expansion is a Folder that walks over an AST and produces another AST.

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

Traits

Folder

[Unstable]

Functions

fold_attrs	[Unstable]
fold_thin_attrs	[Unstable]
noop_fold_angle_bracketed_parameter_data	[Unstable]
noop_fold_arg	[Unstable]
noop_fold_arm	[Unstable]
noop_fold_attribute	[Unstable]
noop_fold_block	[Unstable]
noop_fold_crate	[Unstable]
noop_fold_decl	[Unstable]
noop_fold_explicit_self	[Unstable]
noop_fold_explicit_self_kind	[Unstable]
noop_fold_expr	[Unstable]
noop_fold_exprs	[Unstable]
noop_fold_field	[Unstable]
noop_fold_fn_decl	[Unstable]
noop_fold_foreign_item	[Unstable]
noop_fold_foreign_mod	[Unstable]
noop_fold_generics	[Unstable]
noop_fold_ident	[Unstable]
noop_fold_impl_item	[Unstable]
noop_fold_interpolated	[Unstable] apply folder to elements of interpolated nodes
noop_fold_item	[Unstable]
noop_fold_item_kind	[Unstable]
noop_fold_item_simple	[Unstable]
noop_fold_lifetime	[Unstable]
noop_fold_lifetime_def	[Unstable]
noop_fold_lifetime_defs	[Unstable]
noop_fold_lifetimes	[Unstable]
noop_fold_local	[Unstable]
noop_fold_mac	[Unstable]
noop_fold_meta_item	[Unstable]
noop_fold_meta_items	[Unstable]
noop_fold_method_sig	[Unstable]
noop_fold_mod	[Unstable]
noop_fold_mt	[Unstable]
noop_fold_opt_bounds	[Unstable]
noop_fold_opt_expr	[Unstable]
noop_fold_opt_lifetime	[Unstable]
noop_fold_parenthesized_parameter_data	[Unstable]
noop_fold_pat	[Unstable]
noop_fold_path	[Unstable]
noop_fold_path_parameters	[Unstable]
noop_fold_poly_trait_ref	[Unstable]
noop_fold_stmt	[Unstable]
noop_fold_struct_field	[Unstable]
noop_fold_token	[Unstable]
noop_fold_trait_item	[Unstable]
noop_fold_trait_ref	[Unstable]
noop_fold_tt	[Unstable]
noop_fold_tts	[Unstable]
noop_fold_ty	[Unstable]
noop_fold_ty_binding	[Unstable]
noop_fold_ty_param	[Unstable]
noop_fold_ty_param_bound	[Unstable]
noop_fold_ty_params	[Unstable]
noop_fold_usize	[Unstable]
noop_fold_variant	[Unstable]
noop_fold_variant_data	[Unstable]
noop_fold_view_path	[Unstable]
noop_fold_vis	[Unstable]
noop_fold_where_clause	[Unstable]
noop_fold_where_predicate	[Unstable]