func (ui *webInterface) stackView(w http.ResponseWriter, req *http.Request) {
	// Get all data in a report.
	rpt, errList := ui.makeReport(w, req, []string{"svg"}, func(cfg *config) {
		cfg.CallTree = true
		cfg.Trim = false
		cfg.Granularity = "filefunctions"
	})
	if rpt == nil {
		return // error already reported
	}

	// Make stack data and generate corresponding JSON.
	stacks := rpt.Stacks()

// a named variable.
type config struct {
	// Filename for file-based output formats, stdout by default.
	Output string `json:"-"`

	// Display options.
	CallTree            bool    `json:"call_tree,omitempty"`
	RelativePercentages bool    `json:"relative_percentages,omitempty"`
	Unit                string  `json:"unit,omitempty"`
	CompactLabels       bool    `json:"compact_labels,omitempty"`

			c, _ := measurement.Scale(out.Weight, o.SampleUnit, o.OutputUnit)
			callee := out.Dest
			fmt.Fprintln(w, "cfl="+callgrindName(files, callee.Info.File))
			fmt.Fprintln(w, "cfn="+callgrindName(names, nodeNames[callee]))
			// pprof doesn't have a flat weight for a call, leave as 0.
			fmt.Fprintf(w, "calls=0 %s %d\n", callgrindAddress(prevInfo, callee.Info.Address), callee.Info.Lineno)
			// TODO: This address may be in the middle of a call

	addFilter("tagignore", cfg.TagIgnore)
	addFilter("tagshow", cfg.TagShow)
	addFilter("taghide", cfg.TagHide)

	ropt := &report.Options{
		CumSort:      cfg.Sort == "cum",
		CallTree:     cfg.CallTree,
		DropNegative: cfg.DropNegative,

		CompactLabels: cfg.CompactLabels,
		Ratio:         1 / cfg.DivideBy,

		NodeCount:    cfg.NodeCount,
		NodeFraction: cfg.NodeFraction,

	ObjNames          bool                       // Always preserve obj filename
	OrigFnNames       bool                       // Preserve original (eg mangled) function names

	CallTree     bool // Build a tree instead of a graph
	DropNegative bool // Drop nodes with overall negative values

	KeptNodes NodeSet // If non-nil, only use nodes in this set
}

// Nodes is an ordered collection of graph nodes.

import (
	"go/ast"
	"go/types"

	"golang.org/x/tools/go/ast/astutil"
	"golang.org/x/tools/internal/typeparams"
)

// Callee returns the named target of a function call, if any:
// a function, method, builtin, or variable.
//
// Functions and methods may potentially have type parameters.
func Callee(info *types.Info, call *ast.CallExpr) types.Object {
	fun := astutil.Unparen(call.Fun)

	// Look through type instantiation if necessary.

    protected final CallType callType;

    private InterceptScope(CallType callType) {
        this.callType = callType;
    }

    /**
     * The returned scope includes calls to all constructors of class {@code constructorClass}.
     *
     * @param constructorClass the class whose constructors are to be intercepted
     * @return the scope object
     */

            throw new RuntimeException("This implementation does not know how to forcefully kill a process on os: " + OperatingSystem.current())
        }
        execute(killArgs(pid, killTree), killScript(pid, killTree))
    }

    // Only supported on *nix platforms
    String[] getChildProcesses() {
        if (pid == null) {

	callType CallType, tlsCtx TLSContext, exRsp ExpectedResponse,
) {
	doSendRequestsOrFail(ctx, ing, host, path, callType, tlsCtx, exRsp, false /* useHTTP3 */)
}

func SendQUICRequestsOrFail(ctx framework.TestContext, ing ingress.Instance, host string, path string,
	callType CallType, tlsCtx TLSContext, exRsp ExpectedResponse,
) {

		// ExerciseIface
		{
			pos:    "./devirt.go:101:20",
			callee: "mult.Mult.Multiply",
		},
		{
			pos:    "./devirt.go:101:39",
			callee: "Add.Add",
		},
		// ExerciseFuncConcrete
		{
			pos:    "./devirt.go:173:36",
			callee: "AddFn",
		},
		{
			pos:    "./devirt.go:173:15",
			callee: "mult.MultFn",
		},
		// ExerciseFuncField
		{