[−][src]Trait egg::LanguageChildren

pub trait LanguageChildren {
    fn len(&self) -> usize;
    fn can_be_length(n: usize) -> bool;
    fn from_vec(v: Vec<Id>) -> Self;
    fn as_slice(&self) -> &[Id];
    fn as_mut_slice(&mut self) -> &mut [Id];

    fn is_empty(&self) -> bool { ... }
}

A marker that defines acceptable children types for define_language!.

See define_language! for more details. You should not have to implement this trait.

Required methods

`fn len(&self) -> usize`

Returns the number of children.

`fn can_be_length(n: usize) -> bool`

Checks if n is an acceptable number of children for this type.

`fn from_vec(v: Vec<Id>) -> Self`

Create an instance of this type from a Vec<Id>, with the guarantee that can_be_length is already true on the Vec.

`fn as_slice(&self) -> &[Id]`

Returns a slice of the children Ids.

`fn as_mut_slice(&mut self) -> &mut [Id]`

Returns a mutable slice of the children Ids.

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Provided methods

`fn is_empty(&self) -> bool`

Checks if there are no children.

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Implementations on Foreign Types

`impl LanguageChildren for [Id; 0]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 1]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 2]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 3]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 4]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 5]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 6]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 7]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 8]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 9]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 10]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 11]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 12]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 13]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 14]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for [Id; 15]`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for Box<[Id]>`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(_: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

`impl LanguageChildren for Vec<Id>`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(_: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

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Implementors

`impl LanguageChildren for Id`[src]

`fn len(&self) -> usize`[src]

`fn can_be_length(n: usize) -> bool`[src]

`fn from_vec(v: Vec<Id>) -> Self`[src]

`fn as_slice(&self) -> &[Id]`[src]

`fn as_mut_slice(&mut self) -> &mut [Id]`[src]

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