"os"
	"sync/atomic"
)

// CoverBlock records the coverage data for a single basic block.
// The fields are 1-indexed, as in an editor: The opening line of
// the file is number 1, for example. Columns are measured
// in bytes.
// NOTE: This struct is internal to the testing infrastructure and may change.
// It is not covered (yet) by the Go 1 compatibility guidelines.
type CoverBlock struct {

	}
	if coverCounters[fileName] != nil {
		// Already registered.
		return
	}
	coverCounters[fileName] = counter
	block := make([]testing.CoverBlock, len(counter))
	for i := range counter {
		block[i] = testing.CoverBlock{
			Line0: pos[3*i+0],
			Col0: uint16(pos[3*i+2]),
			Line1: pos[3*i+1],
			Col1: uint16(pos[3*i+2]>>16),
			Stmts: numStmts[i],
		}
	}

		{"Cover.Counters", Field, 2},
		{"Cover.CoveredPackages", Field, 2},
		{"Cover.Mode", Field, 2},
		{"CoverBlock", Type, 2},
		{"CoverBlock.Col0", Field, 2},
		{"CoverBlock.Col1", Field, 2},
		{"CoverBlock.Line0", Field, 2},
		{"CoverBlock.Line1", Field, 2},
		{"CoverBlock.Stmts", Field, 2},
		{"CoverMode", Func, 8},
		{"Coverage", Func, 4},
		{"F", Type, 18},
		{"Init", Func, 13},