Struct rustc_session::code_stats::VTableSizeInfo

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pub struct VTableSizeInfo {
    pub trait_name: String,
    pub entries: usize,
    pub entries_ignoring_upcasting: usize,
    pub entries_for_upcasting: usize,
    pub upcasting_cost_percent: f64,
}

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§trait_name: String§entries: usize

Number of entries in a vtable with the current algorithm (i.e. with upcasting).

§entries_ignoring_upcasting: usize

Number of entries in a vtable, as-if we did not have trait upcasting.

§entries_for_upcasting: usize

Number of entries in a vtable needed solely for upcasting (i.e. entries - entries_ignoring_upcasting).

§upcasting_cost_percent: f64

Cost of having upcasting in % relative to the number of entries without upcasting (i.e. entries_for_upcasting / entries_ignoring_upcasting * 100%).

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Size: 56 bytes