Struct ForwardAttrs

pub struct ForwardAttrs<'a> {
    pub filter: Option<&'a ForwardAttrsFilter>,
    pub field: Option<&'a AttrsField>,
}

Fields

filter: Option<&'a ForwardAttrsFilter>

field: Option<&'a AttrsField>

Implementations

impl ForwardAttrs<'_>

pub fn will_forward_any(&self) -> bool

Check if this will forward any attributes; this requires both that there be a filter which can match some attributes and a field to receive them.

pub fn as_declaration(&self) -> Option<Declaration<'_>>

Get the field declarations to support attribute forwarding

pub fn as_match_arms(&self) -> MatchArms<'_>

Get the match arms for attribute matching

pub fn as_value_populator(&self) -> Option<ValuePopulator<'_>>

Get the statement that will try to transform forwarded attributes into the result expected by the receiver field.

pub fn as_initializer(&self) -> Option<Initializer<'_>>

Get the field initializer for use when building the deriving struct.

Trait Implementations

impl<'a> Default for ForwardAttrs<'a>

fn default() -> ForwardAttrs<'a>

Returns the “default value” for a type.