//	  bench.Start("foo")
//	  // etc.
//	}
func New(gc Flags, filebase string) *Metrics {
	if gc == GC {
		runtime.GC()
	}
	return &Metrics{gc: gc, filebase: filebase}
}

// Report reports the metrics.
// Closes the currently Start(ed) range, and writes the report to the given io.Writer.
func (m *Metrics) Report(w io.Writer) {
	if m == nil {
		return
	}

	m.closeMark()

	gcString := ""
	if m.gc == GC {

		// Common case
		return nil
	}
	if len(cmdOut) == 0 && cmdErr != nil {
		// Just return the error.
		//
		// TODO: This is what we've done for a long time, but it may be a
		// mistake because it loses all of the extra context and results in
		// ultimately less descriptive output. We should probably just take the
		// text of cmdErr as the output in this case and do everything we

			p.StaleReason = "build -a flag in use"
		}
		// Begin saving output for later writing to cache.
		a.output = []byte{}
		return false
	}

	defer func() {
		// Increment counters for cache hits and misses based on the return value
		// of this function. Don't increment counters if we return early because of
		// cfg.BuildA above because we don't even look at the cache in that case.
		if ok {
			counterCacheHit.Inc()

			return err
		}
	}
	if err := out.f.Close(); err != nil {
		return err
	}
	out.f = nil
	return nil
}

// ErrorClose closes the output file (if any).
// It is supposed to be called only at exit on error, so it doesn't do
// any clean up or buffer flushing, just closes the file.
func (out *OutBuf) ErrorClose() {
	if out.isView {
		panic(viewCloseError)
	}
	if out.f == nil {
		return
	}

	if tw.err != nil {
		return 0, tw.err
	}
	n, err := tw.curr.ReadFrom(r)
	if err != nil && err != ErrWriteTooLong {
		tw.err = err
	}
	return n, err
}

// Close closes the tar archive by flushing the padding, and writing the footer.
// If the current file (from a prior call to [Writer.WriteHeader]) is not fully written,
// then this returns an error.
func (tw *Writer) Close() error {

lizard up Holborn Hill. Smoke lowering down from chimney-pots, making a soft black drizzle, with flakes of soot in it as big as full-grown snowflakes—gone into mourning, one might imagine, for the death of the sun. Dogs, undistinguishable in mire. Horses, scarcely better; splashed to their very blinkers. Foot passengers, jostling one another’s umbrellas in a general infection of ill temper, and losing their foot-hold at street-corners, where tens of thousands of other foot passengers have been slipping...

	// patterns that did not match any packages.
	SilenceUnmatchedWarnings bool

	// Resolve the query against this module.
	MainModule module.Version

	// If Switcher is non-nil, then LoadPackages passes all encountered errors
	// to Switcher.Error and tries Switcher.Switch before base.ExitIfErrors.
	Switcher gover.Switcher
}

// LoadPackages identifies the set of packages matching the given patterns and

// the low byte is for type info, and the rest of a pointer
// (32 or 64-bit) is for payload, whatever the tagged class.
//
// Note that the specific integers used to identify the
// specific tagged classes can and will change from release
// to release (that's why this stuff is in CF*Internal*.h),
// as can the definition of type info vs payload above.
//
#if __LP64__

// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bio

import (
	"io"
	"log"
)

// MustClose closes Closer c and calls log.Fatal if it returns a non-nil error.
func MustClose(c io.Closer) {
	if err := c.Close(); err != nil {
		log.Fatal(err)
	}
}

// MustWriter returns a Writer that wraps the provided Writer,

	"io"
	"os"
	"testing"

	"golang.org/x/term"
)

func TestTerminalPassthrough(t *testing.T) {
	// Check that if 'go test' is run with a terminal connected to stdin/stdout,
	// then the go command passes that terminal down to the test binary
	// invocation (rather than, e.g., putting a pipe in the way).
	//
	// See issue 18153.
	testenv.MustHaveGoBuild(t)