Enum syn::Meta [] [src]

pub enum Meta {
    Word(Ident),
    List(MetaList),
    NameValue(MetaNameValue),
}

Content of a compile-time structured attribute.

This type is available if Syn is built with the "derive" or "full" feature.

Word

A meta word is like the test in #[test].

List

A meta list is like the derive(Copy) in #[derive(Copy)].

NameValue

A name-value meta is like the path = "..." in #[path = "sys/windows.rs"].

Syntax tree enum

This type is a syntax tree enum.

Variants

A structured list within an attribute, like derive(Copy, Clone).

This type is available if Syn is built with the "derive" or "full" feature.

A name-value pair within an attribute, like feature = "nightly".

This type is available if Syn is built with the "derive" or "full" feature.

Methods

impl Meta
[src]

[src]

Returns the identifier that begins this structured meta item.

For example this would return the test in #[test], the derive in #[derive(Copy)], and the path in #[path = "sys/windows.rs"].

Trait Implementations

impl Debug for Meta
[src]

[src]

Formats the value using the given formatter. Read more

impl Eq for Meta
[src]

impl PartialEq for Meta
[src]

[src]

This method tests for self and other values to be equal, and is used by ==. Read more

[src]

This method tests for !=.

impl Hash for Meta
[src]

[src]

Feeds this value into the given [Hasher]. Read more

1.3.0
[src]

Feeds a slice of this type into the given [Hasher]. Read more

impl Clone for Meta
[src]

[src]

Returns a copy of the value. Read more

1.0.0
[src]

Performs copy-assignment from source. Read more

impl From<Ident> for Meta
[src]

[src]

Performs the conversion.

impl From<MetaList> for Meta
[src]

[src]

Performs the conversion.

impl From<MetaNameValue> for Meta
[src]

[src]

Performs the conversion.

impl ToTokens for Meta
[src]

[src]

Write self to the given TokenStream. Read more

[src]

Convert self directly into a TokenStream object. Read more

impl From<Meta> for NestedMeta
[src]

[src]

Performs the conversion.