pub struct MacroExpander<'a, 'b> {
    pub cx: &'a mut ExtCtxt<'b>,
    monotonic: bool,
}

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§cx: &'a mut ExtCtxt<'b>§monotonic: bool

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impl<'a, 'b> MacroExpander<'a, 'b>

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pub fn new(cx: &'a mut ExtCtxt<'b>, monotonic: bool) -> Self

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pub fn expand_crate(&mut self, krate: Crate) -> Crate

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pub fn fully_expand_fragment( &mut self, input_fragment: AstFragment ) -> AstFragment

Recursively expand all macro invocations in this AST fragment.

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fn resolve_imports(&mut self)

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fn collect_invocations( &mut self, fragment: AstFragment, extra_placeholders: &[NodeId] ) -> (AstFragment, Vec<(Invocation, Option<Lrc<SyntaxExtension>>)>)

Collects all macro invocations reachable at this time in this AST fragment, and replace them with “placeholders” - dummy macro invocations with specially crafted NodeIds. Then call into resolver that builds a skeleton (“reduced graph”) of the fragment and prepares data for resolving paths of macro invocations.

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fn error_recursion_limit_reached(&mut self)

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fn error_wrong_fragment_kind( &mut self, kind: AstFragmentKind, mac: &MacCall, span: Span )

A macro’s expansion does not fit in this fragment kind. For example, a non-type macro in a type position.

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fn expand_invoc( &mut self, invoc: Invocation, ext: &SyntaxExtensionKind ) -> ExpandResult<AstFragment, Invocation>

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fn gate_proc_macro_attr_item(&self, span: Span, item: &Annotatable)

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fn gate_proc_macro_input(&self, annotatable: &Annotatable)

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fn parse_ast_fragment( &mut self, toks: TokenStream, kind: AstFragmentKind, path: &Path, span: Span ) -> AstFragment

Auto Trait Implementations§

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impl<'a, 'b> !RefUnwindSafe for MacroExpander<'a, 'b>

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impl<'a, 'b> !Send for MacroExpander<'a, 'b>

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impl<'a, 'b> !Sync for MacroExpander<'a, 'b>

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impl<'a, 'b> Unpin for MacroExpander<'a, 'b>where 'b: 'a,

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impl<'a, 'b> !UnwindSafe for MacroExpander<'a, 'b>

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes