Trait darling::usage::UsesTypeParams

pub trait UsesTypeParams {
    pub fn uses_type_params(
        &self, 
        options: &Options, 
        type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
    ) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>;

    pub fn uses_type_params_cloned(
        &self, 
        options: &Options, 
        type_set: &HashSet<Ident, BuildHasherDefault<FnvHasher>>
    ) -> HashSet<Ident, BuildHasherDefault<FnvHasher>> { ... }
}

Searcher for finding type params in a syntax tree. This can be used to determine if a given type parameter needs to be bounded in a generated impl.

Required methods

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

Returns the subset of the queried type parameters that are used by the implementing syntax element.

This method only accounts for direct usage by the element; indirect usage via bounds or where predicates are not detected.

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Provided methods

pub fn uses_type_params_cloned(
    &self,
    options: &Options,
    type_set: &HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<Ident, BuildHasherDefault<FnvHasher>>

Find all type params using uses_type_params, then clone the found values and return the set.

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Implementations on Foreign Types

impl UsesTypeParams for TypePath

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl<T, U> UsesTypeParams for Punctuated<T, U> where
    T: UsesTypeParams, 

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeBareFn

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeParamBound

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for AngleBracketedGenericArguments

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeTraitObject

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for QSelf

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for PredicateEq

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Field

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for GenericArgument

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for ()

pub fn uses_type_params(
    &self,
    _options: &Options,
    _type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for WherePredicate

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for DataStruct

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl<T> UsesTypeParams for Vec<T, Global> where
    T: UsesTypeParams, 

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Path

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypePtr

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for PathArguments

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TraitBound

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for BareFnArg

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeImplTrait

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeTuple

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeReference

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Variant

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for FieldsNamed

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeArray

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeGroup

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Data

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Constraint

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for ReturnType

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl<T> UsesTypeParams for Option<T> where
    T: UsesTypeParams, 

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Type

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for ParenthesizedGenericArguments

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for PredicateType

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeSlice

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for TypeParen

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Binding

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Ident

Check if an Ident exactly matches one of the sought-after type parameters.

pub fn uses_type_params(
    &self,
    _options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for Fields

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for DataUnion

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

impl UsesTypeParams for DataEnum

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'gen HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'gen Ident, BuildHasherDefault<FnvHasher>>

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Implementors

impl UsesTypeParams for Ignored

pub fn uses_type_params(
    &self,
    _opts: &Options,
    &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl<T> UsesTypeParams for darling::ast::Fields<T> where
    T: UsesTypeParams, 

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

impl<V, F> UsesTypeParams for darling::ast::Data<V, F> where
    F: UsesTypeParams,
    V: UsesTypeParams, 

pub fn uses_type_params(
    &self,
    options: &Options,
    type_set: &'a HashSet<Ident, BuildHasherDefault<FnvHasher>>
) -> HashSet<&'a Ident, BuildHasherDefault<FnvHasher>>

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