Struct rustc_expand::expand::MacroExpander
source · pub struct MacroExpander<'a, 'b> {
pub cx: &'a mut ExtCtxt<'b>,
monotonic: bool,
}
Fields§
§cx: &'a mut ExtCtxt<'b>
§monotonic: bool
Implementations§
source§impl<'a, 'b> MacroExpander<'a, 'b>
impl<'a, 'b> MacroExpander<'a, 'b>
pub fn new(cx: &'a mut ExtCtxt<'b>, monotonic: bool) -> Self
pub fn expand_crate(&mut self, krate: Crate) -> Crate
sourcepub fn fully_expand_fragment(
&mut self,
input_fragment: AstFragment
) -> AstFragment
pub fn fully_expand_fragment( &mut self, input_fragment: AstFragment ) -> AstFragment
Recursively expand all macro invocations in this AST fragment.
fn resolve_imports(&mut self)
sourcefn collect_invocations(
&mut self,
fragment: AstFragment,
extra_placeholders: &[NodeId]
) -> (AstFragment, Vec<(Invocation, Option<Lrc<SyntaxExtension>>)>)
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 NodeId
s.
Then call into resolver that builds a skeleton (“reduced graph”) of the fragment and
prepares data for resolving paths of macro invocations.
fn error_recursion_limit_reached(&mut self)
sourcefn error_wrong_fragment_kind(
&mut self,
kind: AstFragmentKind,
mac: &MacCall,
span: Span
)
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.
fn expand_invoc( &mut self, invoc: Invocation, ext: &SyntaxExtensionKind ) -> ExpandResult<AstFragment, Invocation>
fn gate_proc_macro_attr_item(&self, span: Span, item: &Annotatable)
fn gate_proc_macro_input(&self, annotatable: &Annotatable)
fn parse_ast_fragment( &mut self, toks: TokenStream, kind: AstFragmentKind, path: &Path, span: Span ) -> AstFragment
Auto Trait Implementations§
impl<'a, 'b> !RefUnwindSafe for MacroExpander<'a, 'b>
impl<'a, 'b> !Send for MacroExpander<'a, 'b>
impl<'a, 'b> !Sync for MacroExpander<'a, 'b>
impl<'a, 'b> Unpin for MacroExpander<'a, 'b>
impl<'a, 'b> !UnwindSafe for MacroExpander<'a, 'b>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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