Trait Metadata

pub(super) trait Metadata<'a, 'tcx>: Copy {
    // Required method
    fn blob(self) -> &'a MetadataBlob;

    // Provided methods
    fn cdata(self) -> Option<CrateMetadataRef<'a>> { ... }
    fn sess(self) -> Option<&'tcx Session> { ... }
    fn tcx(self) -> Option<TyCtxt<'tcx>> { ... }
    fn decoder(self, pos: usize) -> DecodeContext<'a, 'tcx> { ... }
}

Abstract over the various ways one can create metadata decoders.

Required Methods

fn blob(self) -> &'a MetadataBlob

Provided Methods

fn cdata(self) -> Option<CrateMetadataRef<'a>>

fn sess(self) -> Option<&'tcx Session>

fn tcx(self) -> Option<TyCtxt<'tcx>>

fn decoder(self, pos: usize) -> DecodeContext<'a, 'tcx>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'a, 'tcx> Metadata<'a, 'tcx> for (&'a MetadataBlob, &'tcx Session)

fn blob(self) -> &'a MetadataBlob

fn sess(self) -> Option<&'tcx Session>

impl<'a, 'tcx> Metadata<'a, 'tcx> for (CrateMetadataRef<'a>, &'tcx Session)

fn blob(self) -> &'a MetadataBlob

fn cdata(self) -> Option<CrateMetadataRef<'a>>

fn sess(self) -> Option<&'tcx Session>

impl<'a, 'tcx> Metadata<'a, 'tcx> for (CrateMetadataRef<'a>, TyCtxt<'tcx>)

fn blob(self) -> &'a MetadataBlob

fn cdata(self) -> Option<CrateMetadataRef<'a>>

fn tcx(self) -> Option<TyCtxt<'tcx>>

Implementors

impl<'a, 'tcx> Metadata<'a, 'tcx> for &'a MetadataBlob

impl<'a, 'tcx> Metadata<'a, 'tcx> for CrateMetadataRef<'a>