pub(super) struct DebugCounters {
    some_counters: Option<FxHashMap<ExpressionOperandId, DebugCounter>>,
}
Expand description

If enabled, this struct maintains a map from CoverageKind IDs (as ExpressionOperandId) to the CoverageKind data and optional label (normally, the counter’s associated BasicCoverageBlock format string, if any).

Use format_counter to convert one of these CoverageKind counters to a debug output string, as directed by the DebugOptions. This allows the format of counter labels in logs and dump files (including the CoverageGraph graphviz file) to be changed at runtime, via environment variable.

DebugCounters supports a recursive rendering of Expression counters, so they can be presented as nested expressions such as (bcb3 - (bcb0 + bcb1)).

Fields

some_counters: Option<FxHashMap<ExpressionOperandId, DebugCounter>>

Implementations

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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: 32 bytes