Crate enso_macro_utils

A number of helper functions meant to be used in the procedural enso-shapely-macros definitions.

Structs

TypeGatherer

Visitor that accumulates all visited syn::TypePath.

Functions

field_ident_token	Returns token that refers to the field.
field_names	Returns names of the named fields.
fields_list	Collects all fields, named or not.
gather_all_type_reprs	All text representations of TypePaths in the given’s Type subtree.
gather_all_types	All TypePaths in the given’s Type subtree.
identifier_sequence	For given length returns sequence of identifiers like [field0,field1,…].
index_sequence	For given length, returns a sequence of Literals like [0,1,2…]. These are unsuffixed usize literals, so e.g. can be used to identify the tuple unnamed fields.
last_type_arg	Last type argument of the last segment on the type path.
map_tokens	Maps all the tokens in the stream using a given function.
matching_ident	Is the given token an identifier matching to a given string?
new_where_clause	Creates a new where clause from provided sequence of where predicates.
path_matching_ident	Checks if a given Path consists of a single identifier same as given string.
path_segment_generic_args	Obtain list of generic arguments on the path’s segment.
repr	Obtains text representation of given ToTokens-compatible input.
rewrite_stream	Rewrites stream replacing each token with a sequence of tokens returned by the given function. The groups (e.g. token tree within braces) are unpacked, rewritten and repacked into groups – the function is applied recursively.
ty_path_generic_args	Obtain list of generic arguments on the path’s last segment.
ty_path_type_args	Obtain list of type arguments on the path’s last segment.
type_depends_on	Does type depends on the given type parameter.
type_matches	Naive type equality test by comparing their text representations.
type_matches_repr	Naive type equality test by comparing its representation with a string.
variant_depends_on	Does enum variant depend on the given type parameter.

Trait aliases

Str