return MakePos(n.Pos().Base(), 1, 1)

		// declarations
		// case *ImportDecl:
		// case *ConstDecl:
		// case *TypeDecl:
		// case *VarDecl:
		// case *FuncDecl:

		// expressions
		// case *BadExpr:
		// case *Name:
		// case *BasicLit:
		case *CompositeLit:
			if n.Type != nil {
				m = n.Type
				continue
			}
			return n.Pos()
		case *KeyValueExpr:
			m = n.Key
		// case *FuncLit:

};

void FlushAllListeners();

XlaActivityListenerList* GetXlaActivityListenerList() {
  static XlaActivityListenerList* listener_list = new XlaActivityListenerList;
  static int unused = std::atexit(FlushAllListeners);
  (void)unused;
  return listener_list;
}

template <typename FnTy>
Status ForEachListener(FnTy fn) {
  XlaActivityListenerList* listener_list = GetXlaActivityListenerList();

! go env -w GOMODCACHE=./test
stderr 'go: GOMODCACHE entry is relative; must be absolute path: "./test"'

# go env -w checks validity of GOEXPERIMENT
env GOEXPERIMENT=
! go env -w GOEXPERIMENT=badexp
stderr 'unknown GOEXPERIMENT badexp'
go env -w GOEXPERIMENT=fieldtrack

# go env -w and go env -u work on unknown fields already in the go/env file
cp bad.env $GOENV
go env GOENV
cat $GOENV
go env
! stdout UNKNOWN

	switch n.(type) {
	case *ast.ArrayType:
		return 1 << nArrayType
	case *ast.AssignStmt:
		return 1 << nAssignStmt
	case *ast.BadDecl:
		return 1 << nBadDecl
	case *ast.BadExpr:
		return 1 << nBadExpr
	case *ast.BadStmt:
		return 1 << nBadStmt
	case *ast.BasicLit:
		return 1 << nBasicLit
	case *ast.BinaryExpr:
		return 1 << nBinaryExpr
	case *ast.BlockStmt:

		generatorSyms: make(map[loader.Sym]generatorFunc),
	}

	if buildcfg.GOARCH != arch.Name {
		log.Fatalf("invalid buildcfg.GOARCH %s (want %s)", buildcfg.GOARCH, arch.Name)
	}

	AtExit(func() {
		if nerrors > 0 {
			ctxt.Out.ErrorClose()
			mayberemoveoutfile()
		}
	})

	return ctxt
}

// computeTLSOffset records the thread-local storage offset.

	// operator precedences. (This assumes that the AST was
	// generated by a Go parser.)

	switch x := x.(type) {
	default:
		fmt.Fprintf(buf, "(ast: %T)", x) // nil, ast.BadExpr, ast.KeyValueExpr

	case *ast.Ident:
		buf.WriteString(x.Name)

	case *ast.Ellipsis:
		buf.WriteString("...")
		if x.Elt != nil {
			WriteExpr(buf, x.Elt)
		}

	case *ast.BasicLit:

			Walk(v, n.Type)
		}
		if n.Tag != nil {
			Walk(v, n.Tag)
		}
		if n.Comment != nil {
			Walk(v, n.Comment)
		}

	case *FieldList:
		walkList(v, n.List)

	// Expressions
	case *BadExpr, *Ident, *BasicLit:
		// nothing to do

	case *Ellipsis:
		if n.Elt != nil {
			Walk(v, n.Elt)
		}

	case *FuncLit:
		Walk(v, n.Type)
		Walk(v, n.Body)

	case *CompositeLit:

// it is a documentation pseudo-command such as importpath.
func (c *Command) Runnable() bool {
	return c.Run != nil
}

var atExitFuncs []func()

func AtExit(f func()) {
	atExitFuncs = append(atExitFuncs, f)
}

func Exit() {
	for _, f := range atExitFuncs {
		f()
	}
	os.Exit(exitStatus)
}

func Fatalf(format string, args ...any) {

		if n.Recv != nil {
			w.node(n.Recv)
		}
		w.node(n.Name)
		w.fieldList(n.TParamList)
		w.node(n.Type)
		if n.Body != nil {
			w.node(n.Body)
		}

	// expressions
	case *BadExpr: // nothing to do
	case *Name: // nothing to do
	case *BasicLit: // nothing to do

	case *CompositeLit:
		if n.Type != nil {
			w.node(n.Type)
		}
		w.exprList(n.ElemList)

	case *KeyValueExpr:

	return n
}

type (
	Expr interface {
		Node
		typeInfo
		aExpr()
	}

	// Placeholder for an expression that failed to parse
	// correctly and where we can't provide a better node.
	BadExpr struct {
		expr
	}

	// Value
	Name struct {
		Value string
		expr
	}

	// Value
	BasicLit struct {
		Value string
		Kind  LitKind