)

	vectors := []struct {
		maker fileMaker
		tests []testFnc
	}{{
		maker: makeReg{"", 0},
		tests: []testFnc{
			testRemaining{0, 0},
			testRead{0, "", io.EOF},
			testRead{1, "", io.EOF},
			testWriteTo{nil, 0, nil},
			testRemaining{0, 0},
		},
	}, {
		maker: makeReg{"", 1},
		tests: []testFnc{
			testRemaining{1, 1},
			testRead{5, "", io.ErrUnexpectedEOF},

			runOnce(&buf)
		}
	})
}

func writeTestsToFS(tests []WriteTest) fs.FS {
	fsys := fstest.MapFS{}
	for _, wt := range tests {
		fsys[wt.Name] = &fstest.MapFile{
			Data: wt.Data,
			Mode: wt.Mode,
		}
	}
	return fsys
}

func TestWriterAddFS(t *testing.T) {
	buf := new(bytes.Buffer)
	w := NewWriter(buf)
	tests := []WriteTest{
		{
			Name: "file.go",
			Data: []byte("hello"),

pkg strconv, func QuoteRuneToGraphic(int32) string
pkg strconv, func QuoteToGraphic(string) string
pkg text/template, func IsTrue(interface{}) (bool, bool)
pkg text/template, method (ExecError) Error() string
pkg text/template, type ExecError struct
pkg text/template, type ExecError struct, Err error

// by a subsequent call to Scan. It does no allocation.
func (s *Scanner) Bytes() []byte {
	return s.token
}

// Text returns the most recent token generated by a call to [Scanner.Scan]
// as a newly allocated string holding its bytes.
func (s *Scanner) Text() string {
	return string(s.token)
}

// ErrFinalToken is a special sentinel error value. It is intended to be

const (
	// Mode constants from the USTAR spec:
	// See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	c_ISUID = 04000 // Set uid
	c_ISGID = 02000 // Set gid
	c_ISVTX = 01000 // Save text (sticky bit)

	// Common Unix mode constants; these are not defined in any common tar standard.
	// Header.FileInfo understands these, but FileInfoHeader will never produce these.
	c_ISDIR  = 040000  // Directory

// The uncommented cases means they can be handled by assembler
// and they are consistent with disassembler decoding.
// TODO means they cannot be handled by current assembler.

#include "../../../../../runtime/textflag.h"

TEXT asmtest(SB),DUPOK|NOSPLIT,$-8

	AND $(1<<63), R1                           // AND $-9223372036854775808, R1     // 21004192
	ADCW ZR, R8, R10                           // 0a011f1a

// Code generated by avx512test. DO NOT EDIT.

#include "../../../../../../runtime/textflag.h"

TEXT asmtest_avx512_ifma(SB), NOSPLIT, $0
	VPMADD52HUQ X7, X11, K1, X18                       // 62e2a509b5d7
	VPMADD52HUQ X0, X11, K1, X18                       // 62e2a509b5d0
	VPMADD52HUQ 17(SP)(BP*2), X11, K1, X18             // 62e2a509b5946c11000000
	VPMADD52HUQ -7(DI)(R8*4), X11, K1, X18             // 62a2a509b59487f9ffffff

// Code generated by avx512test. DO NOT EDIT.

#include "../../../../../../runtime/textflag.h"

TEXT asmtest_avx512_vbmi(SB), NOSPLIT, $0
	VPERMB X26, X20, K1, X23                           // 62825d018dfa
	VPERMB X19, X20, K1, X23                           // 62a25d018dfb
	VPERMB X0, X20, K1, X23                            // 62e25d018df8
	VPERMB 7(SI)(DI*4), X20, K1, X23                   // 62e25d018dbcbe07000000

			}
			in.beginningOfLine = tok == '\n'
			if in.enabled() {
				in.text = in.Stack.Text()
				return tok
			}
		}
	}
	in.Error("recursive macro invocation")
	return 0
}

func (in *Input) Text() string {
	return in.text
}

// hash processes a # preprocessor directive. It reports whether it completes.
func (in *Input) hash() bool {

	switch word {
	case "TEXT":
		// Defines text symbol in operands[0].
		if len(operands) > 0 {
			p.start(operands[0])
			if name, abi, ok := p.funcAddress(); ok {
				fmt.Fprintf(w, "def %s %s\n", name, abi)
			}
		}
		return
	case "GLOBL", "PCDATA":
		// No text definitions or symbol references.
	case "DATA", "FUNCDATA":