Module derive

Functions to derive darling’s traits from well-formed input, without directly depending on proc_macro.

Macros

• emit_impl_or_error 🔒
  Run an expression which returns a darling::Result, then either return the tokenized representation of the Ok value, or the tokens of the compiler errors in the Err case.

Functions

• from_attributes
  Create tokens for a darling::FromAttributes impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.
• from_derive_input
  Create tokens for a darling::FromDeriveInput impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.
• from_field
  Create tokens for a darling::FromField impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.
• from_meta
  Create tokens for a darling::FromMeta impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.
• from_type_param
  Create tokens for a darling::FromTypeParam impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.
• from_variant
  Create tokens for a darling::FromVariant impl from a DeriveInput. If the input cannot produce a valid impl, the returned tokens will contain compile errors instead.