func (t *Type) MapType() *Map {
	t.wantEtype(TMAP)
	return t.extra.(*Map)
}

// Forward contains Type fields specific to forward types.
type Forward struct {
	Copyto      []*Type  // where to copy the eventual value to
	Embedlineno src.XPos // first use of this type as an embedded type
}

// forwardType returns t's extra forward-type-specific fields.
func (t *Type) forwardType() *Forward {
	t.wantEtype(TFORW)

	// (shouldn't happen but easy to handle).
	if len(subs) == 0 {
		return p.push(p.newRegexp(OpNoMatch))
	}

	return p.push(p.collapse(subs, OpAlternate))
}

// cleanAlt cleans re for eventual inclusion in an alternation.
func cleanAlt(re *Regexp) {
	switch re.Op {
	case OpCharClass:
		re.Rune = cleanClass(&re.Rune)
		if len(re.Rune) == 2 && re.Rune[0] == 0 && re.Rune[1] == unicode.MaxRune {

	tg.run("tool", "buildid", tg.path("bin/m"+exeSuffix))

	// The link action ID did not include the full main build ID,
	// even though the full main build ID is written into the
	// eventual binary. That caused the following install to
	// be a no-op, thinking the gofmt binary was up-to-date,
	// even though .Stale could see it was not.
	tg.tempFile("src/m/main.go", "package main /* c2 */; func main() {}\n")

		//
		// To ensure that this process of promoting, adding, and upgrading roots
		// eventually terminates, during iteration we only ever add modules to the
		// root set — we only remove irrelevant roots at the very end of
		// iteration, after we have already added every root that we plan to need
		// in the (eventual) tidy root set.
		//
		// Since we do not remove any roots during iteration, even if they no

)

const (
	// Encoding for VEX prefix in tables.
	// The P, L, and W fields are chosen to match
	// their eventual locations in the VEX prefix bytes.

	// Encoding for VEX prefix in tables.
	// The P, L, and W fields are chosen to match
	// their eventual locations in the VEX prefix bytes.

	// Using spare bit to make leading [E]VEX encoding byte different from

	//
	// doAllThreadsSyscall requires that every M in allm will eventually
	// start and be signal-able, even with a STW.
	//
	// Disable preemption here until we start the thread to ensure that
	// newm is not preempted between allocm and starting the new thread,
	// ensuring that anything added to allm is guaranteed to eventually
	// start.
	acquirem()

	mp := allocm(pp, fn, id)
	mp.nextp.set(pp)

		}
	}()
	sh := b.Shell(a)

	a1 := a.Deps[0]
	a.buildID = a1.buildID
	if a.json != nil {
		a.json.BuildID = a.buildID
	}

	// If we are using the eventual install target as an up-to-date
	// cached copy of the thing we built, then there's no need to
	// copy it into itself (and that would probably fail anyway).
	// In this case a1.built == a.Target because a1.built == p.Target,

// the source file, but most processing should be over the vendor-resolved
// import paths. We do this resolution lazily both to avoid file system work
// and because the eventual real load of the test imports (during 'go test')
// can produce better error messages if it starts with the original paths.
// The initial load of p loads all the non-test imports and rewrites

        when:
        def runningBuild = startBuild()

        then:
        conditions.eventually {
            waitingForChangesMessageAppears()
        }

        when:
        changeListeners.broadcastChange(FileWatcherRegistry.Type.MODIFIED, file.toPath())

        then:
        conditions.eventually {
            rebuiltBecauseOfChange()
        }

        cleanup:

				g.Expect(cms.Delete(context.TODO(), step.deleted.Name, metav1.DeleteOptions{})).
					Should(Succeed())
			}

			g.Eventually(func() *Config {
				mu.Lock()
				defer mu.Unlock()
				return newConfig
			}, time.Second).Should(Equal(&c))
			g.Eventually(func() string {
				mu.Lock()
				defer mu.Unlock()
				return newValues
			}, time.Second).Should(Equal(valuesConfig))
		})
	}