Crate bevy_macro_utils 

A collection of helper types and functions for working on macros within the Bevy ecosystem.

Modules

fq_std

This module contains unit structs that should be used inside quote! and spanned_quote! using the variable interpolation syntax in place of their equivalent structs and traits present in std.

Structs

BevyManifest

The path to the Cargo.toml file for the Bevy project.

ResultSifter

Helper struct used to process an iterator of Result<Vec<T>, syn::Error>, combining errors into one along the way.

Symbol

A single named value, representable as a string.

Enums

PathType

The type of a Path, using standard Rust naming conventions to infer the type. Note that this only works for paths that actually follow the naming conventions, and there are inherent ambiguities, such as Some either referring to a type or an enum variant.

Functions

as_member

Converts an optional identifier or index into a syn::Member variant.

derive_label

Derive a label trait

ensure_no_collision

Finds an identifier that will not conflict with the specified set of tokens.

get_lit_bool

Get a literal boolean from the provided expression as a bool.

get_lit_str

Get a literal string from the provided expression.

get_struct_fields

Get the fields of a data structure if that structure is a struct; otherwise, return a compile error that points to the site of the macro invocation.

pascal_to_snake_case

Convert a string from PascalCase to snake_case.

path_to_string

This formats the given path in standard Rust format.

require_named

Return an error if Fields is not Fields::Named

terminated_parser

Returns a syn::parse::Parser which parses a stream of zero or more occurrences of T separated by punctuation of type P, with optional trailing punctuation.