Enum syn::Item

[+] Show declaration

pub enum Item {
    ExternCrate(ItemExternCrate),
    Use(ItemUse),
    Static(ItemStatic),
    Const(ItemConst),
    Fn(ItemFn),
    Mod(ItemMod),
    ForeignMod(ItemForeignMod),
    Type(ItemType),
    Struct(ItemStruct),
    Enum(ItemEnum),
    Union(ItemUnion),
    Trait(ItemTrait),
    Impl(ItemImpl),
    Macro(ItemMacro),
    Macro2(ItemMacro2),
    Verbatim(ItemVerbatim),
}

[−] Expand description

Things that can appear directly inside of a module or scope.

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

Syntax tree enum

This type is a syntax tree enum.

Variants

ExternCrate(ItemExternCrate)

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An extern crate item: extern crate serde.

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

Use(ItemUse)

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A use declaration: use std::collections::HashMap.

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

Static(ItemStatic)

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A static item: static BIKE: Shed = Shed(42).

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

Const(ItemConst)

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A constant item: const MAX: u16 = 65535.

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

Fn(ItemFn)

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A free-standing function: fn process(n: usize) -> Result<()> { ... }.

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

Mod(ItemMod)

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A module or module declaration: mod m or mod m { ... }.

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

ForeignMod(ItemForeignMod)

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A block of foreign items: extern "C" { ... }.

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

Type(ItemType)

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A type alias: type Result<T> = std::result::Result<T, MyError>.

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

Struct(ItemStruct)

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A struct definition: struct Foo<A> { x: A }.

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

Enum(ItemEnum)

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An enum definition: enum Foo<A, B> { C<A>, D<B> }.

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

Union(ItemUnion)

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A union definition: union Foo<A, B> { x: A, y: B }.

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

Trait(ItemTrait)

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A trait definition: pub trait Iterator { ... }.

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

Impl(ItemImpl)

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An impl block providing trait or associated items: impl<A> Trait for Data<A> { ... }.

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

Macro(ItemMacro)

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A macro invocation, which includes macro_rules! definitions.

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

Macro2(ItemMacro2)

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A 2.0-style declarative macro introduced by the macro keyword.

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

Verbatim(ItemVerbatim)

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Tokens forming an item not interpreted by Syn.

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

Trait Implementations

impl Synom for Item

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fn parse(i: Cursor) -> PResult<Self>

fn description() -> Option<&'static str>

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A short name of the type being parsed.

impl Clone for Item

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fn clone(&self) -> Item

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Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

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Performs copy-assignment from source.

impl From<ItemExternCrate> for Item

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fn from(e: ItemExternCrate) -> Item

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Performs the conversion.

impl From<ItemUse> for Item

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fn from(e: ItemUse) -> Item

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Performs the conversion.

impl From<ItemStatic> for Item

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fn from(e: ItemStatic) -> Item

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Performs the conversion.

impl From<ItemConst> for Item

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fn from(e: ItemConst) -> Item

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Performs the conversion.

impl From<ItemFn> for Item

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fn from(e: ItemFn) -> Item

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Performs the conversion.

impl From<ItemMod> for Item

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fn from(e: ItemMod) -> Item

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Performs the conversion.

impl From<ItemForeignMod> for Item

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fn from(e: ItemForeignMod) -> Item

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Performs the conversion.

impl From<ItemType> for Item

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fn from(e: ItemType) -> Item

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Performs the conversion.

impl From<ItemStruct> for Item

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fn from(e: ItemStruct) -> Item

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Performs the conversion.

impl From<ItemEnum> for Item

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fn from(e: ItemEnum) -> Item

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Performs the conversion.

impl From<ItemUnion> for Item

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fn from(e: ItemUnion) -> Item

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Performs the conversion.

impl From<ItemTrait> for Item

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fn from(e: ItemTrait) -> Item

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Performs the conversion.

impl From<ItemImpl> for Item

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fn from(e: ItemImpl) -> Item

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Performs the conversion.

impl From<ItemMacro> for Item

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fn from(e: ItemMacro) -> Item

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Performs the conversion.

impl From<ItemMacro2> for Item

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fn from(e: ItemMacro2) -> Item

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Performs the conversion.

impl From<ItemVerbatim> for Item

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fn from(e: ItemVerbatim) -> Item

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Performs the conversion.

impl ToTokens for Item

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fn to_tokens(&self, tokens: &mut Tokens)

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Write self to the given Tokens.

fn into_tokens(self) -> Tokens

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Convert self directly into a Tokens object.

impl From<DeriveInput> for Item

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fn from(input: DeriveInput) -> Item

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Performs the conversion.