}

// A rustState holds the current state of demangling a Rust string.
type rustState struct {
	orig          string          // the original string being demangled
	str           string          // remainder of string to demangle
	off           int             // offset of str within original string
	buf           strings.Builder // demangled string being built
	skip          bool            // don't print, just skip

	astFile *ast.File
	blocks  []Block
	content []byte
	edit    *edit.Buffer
	mdb     *encodemeta.CoverageMetaDataBuilder
	fn      Func
	pkg     *Package
}

// findText finds text in the original source, starting at pos.
// It correctly skips over comments and assumes it need not
// handle quoted strings.
// It returns a byte offset within f.src.
func (f *File) findText(pos token.Pos, text string) int {

//
// Tests derived from Chromium's cookie_store_unittest.h.
//

// See http://src.chromium.org/viewvc/chrome/trunk/src/net/cookies/cookie_store_unittest.h?revision=159685&content-type=text/plain
// Some of the original tests are in a bad condition (e.g.
// DomainWithTrailingDotTest) or are not RFC 6265 conforming (e.g.
// TestNonDottedAndTLD #1 and #6) and have not been ported.

	the lock. But instead of the value corresponding to the amount of contention that call
	stack caused, it corresponds to the amount of time the caller of unlock had to wait in its
	original call to lock. A future release is expected to align those and remove this setting.

	invalidptr: invalidptr=1 (the default) causes the garbage collector and stack

// triggered this panic.
func panicCheck1(pc uintptr, msg string) {
	if goarch.IsWasm == 0 && stringslite.HasPrefix(funcname(findfunc(pc)), "runtime.") {
		// Note: wasm can't tail call, so we can't get the original caller's pc.
		throw(msg)
	}
	// TODO: is this redundant? How could we be in malloc
	// but not in the runtime? runtime/internal/*, maybe?
	gp := getg()
	if gp != nil && gp.m != nil && gp.m.mallocing != 0 {

		*errors = append(*errors, err)
		if clear {
			return nil
		}
		return err
	}
	return nil
}

// chdir changes the current working directory to the named directory,
// and then restore the original working directory at the end of the test.
func chdir(t *testing.T, dir string) {
	olddir, err := os.Getwd()
	if err != nil {
		t.Fatalf("getwd %s: %v", dir, err)
	}
	if err := os.Chdir(dir); err != nil {

		format(w, p.Filename(), p.Line(), p.Col(), showCol)
		return
	}

	// base is relative
	// Print the column only for the original position since the
	// relative position's column information may be bogus (it's
	// typically generated code and we can't say much about the
	// original source at that point but for the file:line info
	// that's provided via a line directive).

			// have no quoted representation.
			//
			// fmt with "%q" (and the corresponding functions in the strconv package)
			// would quote out-of-range values to the Unicode replacement character
			// instead of the original value (see https://go.dev/issue/51526), so
			// they must be treated as int32 instead.
			//
			// We arbitrarily draw the line at UTF-8 validity, which biases toward the

// taken from the frame structure, records the results in the frame,
// and returns to runtime.asmcgocall.
//
// After it regains control, runtime.asmcgocall switches back to the
// original g (m->curg)'s stack and returns to runtime.cgocall.
//
// After it regains control, runtime.cgocall calls exitsyscall, which blocks
// until this m can run Go code without violating the $GOMAXPROCS limit,

	// formatting differs from the source formatting (in the amount of
	// white space). If there's a difference and SourcePos is set in
	// ConfigMode, //line directives are used in the output to restore
	// original source positions for a reader.
	pos          token.Position // current position in AST (source) space
	out          token.Position // current position in output space