Method parse_export

package_bin.go:82–150

(callback func(string, ast.Decl))

}

func (p *gc_bin_parser) parse_export(callback func(string, ast.Decl)) {
	p.callback = callback

	// read version info
	var versionstr string
	if b := p.rawByte(); b == 'c' || b == 'd' {
		// Go1.7 encoding; first byte encodes low-level
		// encoding format (compact vs debug).
		// For backward-compatibility only (avoid problems with
		// old installed packages). Newly compiled packages use
		// the extensible format string.
		// TODO(gri) Remove this support eventually; after Go1.8.
		if b == 'd' {
			p.debugFormat = true
		}
		p.trackAllTypes = p.rawByte() == 'a'
		p.posInfoFormat = p.int() != 0
		versionstr = p.string()
		if versionstr == "v1" {
			p.version = 0
		}
	} else {
		// Go1.8 extensible encoding
		// read version string and extract version number (ignore anything after the version number)
		versionstr = p.rawStringln(b)
		if s := strings.SplitN(versionstr, " ", 3); len(s) >= 2 && s[0] == "version" {
			if v, err := strconv.Atoi(s[1]); err == nil && v > 0 {
				p.version = v
			}
		}
	}

	// read version specific flags - extend as necessary
	switch p.version {
	case 6, 5, 4, 3, 2, 1:
		p.debugFormat = p.rawStringln(p.rawByte()) == "debug"
		p.trackAllTypes = p.int() != 0
		p.posInfoFormat = p.int() != 0
	case 0:
		// Go1.7 encoding format - nothing to do here
	default:
		panic(fmt.Errorf("unknown export format version %d (%q)", p.version, versionstr))
	}

	// --- generic export data ---

	// populate typList with predeclared "known" types
	p.typList = append(p.typList, predeclared...)

	// read package data
	pkgName := p.pkg()
	p.pfc.defalias = pkgName[strings.LastIndex(pkgName, "!")+1:]

	// read objects of phase 1 only (see cmd/compiler/internal/gc/bexport.go)
	objcount := 0
	for {
		tag := p.tagOrIndex()
		if tag == endTag {