tiny.arrange.Measurer

1pub const Measurer = struct {2    measure: Measure,3    memos: []MeasureMemo = &.{},4    used: usize = 0,5    calls: usize = 0,6    probes: usize = 0,78    pub fn reset(self: *Measurer) void {9        for (self.memos) |*memo| memo.* = .{};10        self.used = 0;11        self.calls = 0;12        self.probes = 0;13    }1415    pub fn size(self: *Measurer, token: u32, available: Available) Size {16        if (self.memos.len == 0) {17            self.calls += 1;18            return self.measure.size(token, available);19        }20        const index = measureHash(token, available) % self.memos.len;21        const memo = &self.memos[index];22        self.probes += 1;23        if (memo.valid and memo.token == token and sameAvailable(memo.available, available)) {24            return memo.size;25        }2627        const measured = self.measure.size(token, available);28        self.calls += 1;29        if (!memo.valid) {30            self.used += 1;31        }32        memo.* = .{33            .valid = true,34            .token = token,35            .available = available,36            .size = measured,37        };38        return measured;39    }40};

1pub const Measurer = types.Measurer;