Struct rustc_expand::base::SyntaxExtension[−][src]

pub struct SyntaxExtension {
    pub kind: SyntaxExtensionKind,
    pub span: Span,
    pub allow_internal_unstable: Option<Lrc<[Symbol]>>,
    pub allow_internal_unsafe: bool,
    pub local_inner_macros: bool,
    pub stability: Option<Stability>,
    pub deprecation: Option<Deprecation>,
    pub helper_attrs: Vec<Symbol>,
    pub edition: Edition,
    pub builtin_name: Option<Symbol>,
}
Expand description

A struct representing a macro definition in “lowered” form ready for expansion.

Fields

kind: SyntaxExtensionKind
Expand description

A syntax extension kind.

span: Span
Expand description

Span of the macro definition.

allow_internal_unstable: Option<Lrc<[Symbol]>>
Expand description

List of unstable features that are treated as stable inside this macro.

allow_internal_unsafe: bool
Expand description

Suppresses the unsafe_code lint for code produced by this macro.

local_inner_macros: bool
Expand description

Enables the macro helper hack (ident!(...) -> $crate::ident!(...)) for this macro.

stability: Option<Stability>
Expand description

The macro’s stability info.

deprecation: Option<Deprecation>
Expand description

The macro’s deprecation info.

helper_attrs: Vec<Symbol>
Expand description

Names of helper attributes registered by this macro.

edition: Edition
Expand description

Edition of the crate in which this macro is defined.

builtin_name: Option<Symbol>
Expand description

Built-in macros have a couple of special properties like availability in #[no_implicit_prelude] modules, so we have to keep this flag.

Implementations

impl SyntaxExtension[src]

pub fn macro_kind(&self) -> MacroKind[src]

Returns which kind of macro calls this syntax extension.

pub fn default(kind: SyntaxExtensionKind, edition: Edition) -> SyntaxExtension[src]

Constructs a syntax extension with default properties.

pub fn new(
    sess: &Session,
    kind: SyntaxExtensionKind,
    span: Span,
    helper_attrs: Vec<Symbol>,
    edition: Edition,
    name: Symbol,
    attrs: &[Attribute]
) -> SyntaxExtension[src]

Constructs a syntax extension with the given properties and other properties converted from attributes.

pub fn dummy_bang(edition: Edition) -> SyntaxExtension[src]

pub fn dummy_derive(edition: Edition) -> SyntaxExtension[src]

pub fn non_macro_attr(mark_used: bool, edition: Edition) -> SyntaxExtension[src]

pub fn expn_data(
    &self,
    parent: ExpnId,
    call_site: Span,
    descr: Symbol,
    macro_def_id: Option<DefId>
) -> ExpnData[src]

Auto Trait Implementations

impl !RefUnwindSafe for SyntaxExtension

impl !Send for SyntaxExtension

impl !Sync for SyntaxExtension

impl Unpin for SyntaxExtension

impl !UnwindSafe for SyntaxExtension

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.