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read_const

Function read_const 

Source
pub fn read_const<'tcx, S: UnderOwnerState<'tcx>>(
    s: &S,
    span: Span,
    src: ConstSource<'tcx>,
    mode: ReadMode,
) -> Option<ConstantExpr<'tcx>>
Expand description

Evaluate src and read it back as a ConstantExpr.