Struct OperandRefBuilder

pub(super) struct OperandRefBuilder<'tcx, V> {
    val: OperandValueBuilder<V>,
    layout: TyAndLayout<'tcx>,
}

Allows building up an OperandRef by setting fields one at a time.

Fields

val: OperandValueBuilder<V>

layout: TyAndLayout<'tcx>

Implementations

impl<'a, 'tcx, V: CodegenObject> OperandRefBuilder<'tcx, V>

pub(super) fn new(layout: TyAndLayout<'tcx>) -> Self

Creates an uninitialized builder for an instance of the layout.

ICEs for BackendRepr::Memory types (other than ZSTs), which should be built up inside a PlaceRef instead as they need an allocated place into which to write the values of the fields.

pub(super) fn insert_field<Bx: BuilderMethods<'a, 'tcx, Value = V>>( &mut self, bx: &mut Bx, variant: VariantIdx, field: FieldIdx, field_operand: OperandRef<'tcx, V>, )

pub(super) fn insert_imm(&mut self, f: FieldIdx, imm: V)

Insert the immediate value imm for field f in the type itself, rather than into one of the variants.

Most things want Self::insert_field instead, but this one is necessary for writing things like enum tags that aren’t in any variant.

pub(super) fn build( &self, cx: &impl CodegenMethods<'tcx, Value = V>, ) -> OperandRef<'tcx, V>

After having set all necessary fields, this converts the builder back to the normal OperandRef.

ICEs if any required fields were not set.

Trait Implementations

impl<'tcx, V: Clone> Clone for OperandRefBuilder<'tcx, V>

fn clone(&self) -> OperandRefBuilder<'tcx, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'tcx, V: Debug> Debug for OperandRefBuilder<'tcx, V>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'tcx, V: Copy> Copy for OperandRefBuilder<'tcx, V>

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.