Trait darling_core::codegen::ExtractAttribute

pub trait ExtractAttribute {
    fn local_declarations(&self) -> Tokens;
    fn immutable_declarations(&self) -> Tokens;
    fn attr_names(&self) -> &[&str];
    fn forwarded_attrs(&self) -> Option<&ForwardAttrs>;
    fn param_name(&self) -> Tokens;
    fn core_loop(&self) -> Tokens;

    fn declarations(&self) -> Tokens { ... }
    fn extractor(&self) -> Tokens { ... }
}

Infrastructure for generating an attribute extractor.

Required Methods

fn local_declarations(&self) -> Tokens

fn immutable_declarations(&self) -> Tokens

Important traits for &'a mut [u8]

impl<'a> Write for &'a mut [u8]impl<'a> Read for &'a [u8]

fn attr_names(&self) -> &[&str]

Gets the list of attribute names that should be parsed by the extractor.

fn forwarded_attrs(&self) -> Option<&ForwardAttrs>

fn param_name(&self) -> Tokens

Gets the name used by the generated impl to return to the syn item passed as input.

fn core_loop(&self) -> Tokens

Gets the core from-meta-item loop that should be used on matching attributes.

Provided Methods

fn declarations(&self) -> Tokens

fn extractor(&self) -> Tokens

Generates the main extraction loop.

Implementors

• impl<'a> ExtractAttribute for FromDeriveInputImpl<'a>
• impl<'a> ExtractAttribute for FromFieldImpl<'a>
• impl<'a> ExtractAttribute for FromTypeParamImpl<'a>
• impl<'a> ExtractAttribute for FromVariantImpl<'a>