Struct ImplArgs

pub struct ImplArgs {
    pub path_arguments: PathArguments,
    pub ignores: Vec<Member>,
    pub using: Option<Member>,
    pub clause: Option<WhereClause>,
}

Arguments passed to ImplTrait implementation methods

Fields

path_arguments: PathArguments

Path arguments to trait

Example: if the target is Deref<Target = T>, this is <Target = T>. This is always empty unless ImplTrait::support_path_arguments returns true.

ignores: Vec<Member>

Fields ignored in attribute

using: Option<Member>

Field specified to ‘use’ in attribute

clause: Option<WhereClause>

Where clause added to attribute

Implementations

impl ImplArgs

pub fn ignore(&self, member: &Member) -> bool

If true, this field is ignored

pub fn ignore_named(&self, ident: &Ident) -> bool

If true, this named field is ignored

pub fn ignore_unnamed(&self, index: &Index) -> bool

If true, this unnamed field is ignored

pub fn using_member(&self) -> Option<&Member>

Field to “use”, if any

pub fn using_field<'b>(&self, fields: &'b Fields) -> Option<&'b Field>

Find field to “use”, if any

pub fn for_fields<'f>( &self, fields: &'f Fields, f: impl FnMut(Member, &'f Field), )

Call the given closure over all non-ignored fields

pub fn for_fields_iter<'f>( &self, fields: impl Iterator<Item = (usize, &'f Field)>, f: impl FnMut(Member, &'f Field), )

Call the given closure over all non-ignored fields