if n.TypeWord == nil || n.TypeWord.Op() == ir.OADDR && n.TypeWord.(*ir.AddrExpr).X.Op() == ir.OLINKSYMOFFSET {
		// Fixed (not loaded from a dictionary) type.
		ta := ir.NewTypeAssertExpr(base.Pos, c, toType)
		ta.SetOp(ir.ODOTTYPE2)
		// Allocate a descriptor for this conversion to pass to the runtime.
		ta.Descriptor = makeTypeAssertDescriptor(toType, true)
		rhs = ta
	} else {

	// because walkExpr will lower the string
	// conversion into a runtime call.
	// See issue 24937 for more discussion.
	if cond.Op() == ir.OBYTES2STR && allCaseExprsAreSideEffectFree(sw) {
		cond := cond.(*ir.ConvExpr)
		cond.SetOp(ir.OBYTES2STRTMP)
	}

	cond = walkExpr(cond, sw.PtrInit())
	if cond.Op() != ir.OLITERAL && cond.Op() != ir.ONIL {
		cond = copyExpr(cond, cond.Type(), &sw.Compiled)
	}

	base.Pos = lno

	s := exprSwitch{

	if n.RType != nil && n.RType.Op() == ir.OADDR {
		addr := n.RType.(*ir.AddrExpr)
		if addr.X.Op() == ir.OLINKSYMOFFSET {
			r := ir.NewTypeAssertExpr(n.Pos(), n.X, n.Type())
			if n.Op() == ir.ODYNAMICDOTTYPE2 {
				r.SetOp(ir.ODOTTYPE2)
			}
			r.SetType(n.Type())
			r.SetTypecheck(1)
			return walkExpr(r, init)
		}
	}
	return n
}

// walkIndex walks an OINDEX node.

//   - cleanup...
//   - b/to_a/from_cluster-1
//     ...
func (t *T) Setup(setupFn srcSetupFn) *T {
	t.sourceDeploymentSetup = append(t.sourceDeploymentSetup, setupFn)
	return t
}

func (t *T) setup(ctx framework.TestContext, from echo.Callers) {
	if !t.hasSourceSetup() {
		ctx.SkipDumping()
		scopes.Framework.Debugf("No echotest setup; skipping test dump at this scope.")
	}
	for _, setupFn := range t.sourceDeploymentSetup {

package resource

// SetupFn is a function used for performing setup actions.
type SetupFn func(ctx Context) error

// TeardownFn is a function used for performing tear-down actions.
type TeardownFn func(ctx Context)

// ShouldSkipFn is a function used for performing skip actions; if it returns true a job is skipped
// Note: function may be called multiple times during the setup process.

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
#
# Common setup for all TF scripts.
#
# Make as FEW changes to this file as possible. It should not contain utility
# functions (except for tfrun); use dedicated scripts instead and reference them

package cmd

// SetupType - enum for setup type.
type SetupType int

const (
	// UnknownSetupType - starts with unknown setup type.
	UnknownSetupType SetupType = iota

	// FSSetupType - FS setup type enum.
	FSSetupType

	// ErasureSDSetupType - Erasure single drive setup enum.
	ErasureSDSetupType

	// ErasureSetupType - Erasure setup type enum.
	ErasureSetupType

# limitations under the License.
# ==============================================================================
#
# setup.packages.sh: Given a list of Ubuntu packages, install them and clean up.
# Usage: setup.packages.sh <package_list.txt>
set -e

# Prevent apt install tzinfo from asking our location (assumes UTC)
export DEBIAN_FRONTEND=noninteractive

apt-get update

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
#
# setup.python.sh: Install a specific Python version and packages for it.
# Usage: setup.python.sh <pyversion> <requirements.txt>
set -xe

source ~/.bashrc
VERSION=$1
REQUIREMENTS=$2

add-apt-repository ppa:deadsnakes/ppa

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
#
# setup.python.sh: Install a specific Python version and packages for it.
# Usage: setup.python.sh <pyversion> <requirements.txt>

# Sets up custom apt sources for our TF images.

# Prevent apt install tzinfo from asking our location (assumes UTC)