Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/golang.org/x/tools/go/gccgoexportdata/gccgoexportdata.go

@@ -0,0 +1,129 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package gccgoexportdata provides functions for reading export data
+// files containing type information produced by the gccgo compiler.
+//
+// This package is a stop-gap until such time as gccgo uses the same
+// export data format as gc; see Go issue 17573. Once that occurs, this
+// package will be deprecated and eventually deleted.
+package gccgoexportdata
+
+// TODO(adonovan): add Find, Write, Importer to the API,
+// for symmetry with gcexportdata.
+
+import (
+	"bytes"
+	"debug/elf"
+	"fmt"
+	"go/token"
+	"go/types"
+	"io"
+	"io/ioutil"
+	"strconv"
+	"strings"
+
+	"golang.org/x/tools/go/internal/gccgoimporter"
+)
+
+// CompilerInfo executes the specified gccgo compiler and returns
+// information about it: its version (e.g. "4.8.0"), its target triple
+// (e.g. "x86_64-unknown-linux-gnu"), and the list of directories it
+// searches to find standard packages. The given arguments are passed
+// directly to calls to the specified gccgo compiler.
+func CompilerInfo(gccgo string, args ...string) (version, triple string, dirs []string, err error) {
+	var inst gccgoimporter.GccgoInstallation
+	err = inst.InitFromDriver(gccgo, args...)
+	if err == nil {
+		version = inst.GccVersion
+		triple = inst.TargetTriple
+		dirs = inst.SearchPaths()
+	}
+	return
+}
+
+// NewReader returns a reader for the export data section of an object
+// (.o) or archive (.a) file read from r.
+func NewReader(r io.Reader) (io.Reader, error) {
+	data, err := ioutil.ReadAll(r)
+	if err != nil {
+		return nil, err
+	}
+
+	// If the file is an archive, extract the first section.
+	const archiveMagic = "!<arch>\n"
+	if bytes.HasPrefix(data, []byte(archiveMagic)) {
+		section, err := firstSection(data[len(archiveMagic):])
+		if err != nil {
+			return nil, err
+		}
+		data = section
+	}
+
+	// Data contains an ELF file with a .go_export section.
+	// ELF magic number is "\x7fELF".
+	ef, err := elf.NewFile(bytes.NewReader(data))
+	if err != nil {
+		return nil, err
+	}
+	sec := ef.Section(".go_export")
+	if sec == nil {
+		return nil, fmt.Errorf("no .go_export section")
+	}
+	return sec.Open(), nil
+}
+
+// firstSection returns the contents of the first regular file in an ELF
+// archive (http://www.sco.com/developers/devspecs/gabi41.pdf, §7.2).
+func firstSection(a []byte) ([]byte, error) {
+	for len(a) >= 60 {
+		var hdr []byte
+		hdr, a = a[:60], a[60:]
+
+		name := strings.TrimSpace(string(hdr[:16]))
+
+		sizeStr := string(hdr[48:58])
+		size, err := strconv.Atoi(strings.TrimSpace(sizeStr))
+		if err != nil {
+			return nil, fmt.Errorf("invalid size: %q", sizeStr)
+		}
+
+		if len(a) < size {
+			return nil, fmt.Errorf("invalid section size: %d", size)
+		}
+
+		// The payload is padded to an even number of bytes.
+		var payload []byte
+		payload, a = a[:size], a[size+size&1:]
+
+		// Skip special files:
+		//   "/"           archive symbol table
+		//   "/SYM64/"     archive symbol table on e.g. s390x
+		//   "//"          archive string table (if any filename is >15 bytes)
+		if name == "/" || name == "/SYM64/" || name == "//" {
+			continue
+		}
+
+		return payload, nil
+	}
+	return nil, fmt.Errorf("archive has no regular sections")
+}
+
+// Read reads export data from in, decodes it, and returns type
+// information for the package.
+// The package name is specified by path.
+//
+// The FileSet parameter is currently unused but exists for symmetry
+// with gcexportdata.
+//
+// Read may inspect and add to the imports map to ensure that references
+// within the export data to other packages are consistent.  The caller
+// must ensure that imports[path] does not exist, or exists but is
+// incomplete (see types.Package.Complete), and Read inserts the
+// resulting package into this map entry.
+//
+// On return, the state of the reader is undefined.
+func Read(in io.Reader, _ *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) {
+	return gccgoimporter.Parse(in, imports, path)
+}

vendor/golang.org/x/tools/go/gccgoexportdata/gccgoexportdata_test.go

@@ -0,0 +1,67 @@
+package gccgoexportdata_test
+
+import (
+	"go/types"
+	"os"
+	"testing"
+
+	"golang.org/x/tools/go/gccgoexportdata"
+)
+
+// Test ensures this package can read gccgo export data from the
+// .go_export from a standalone ELF file or such a file in an archive
+// library.
+//
+// The testdata/{short,long}.a ELF archive files were produced by:
+//
+//   $ echo 'package foo; func F()' > foo.go
+//   $ gccgo -c -fgo-pkgpath blah foo.go
+//   $ objcopy -j .go_export foo.o foo.gox
+//   $ ar q short.a foo.gox
+//   $ objcopy -j .go_export foo.o name-longer-than-16-bytes.gox
+//   $ ar q long.a name-longer-than-16-bytes.gox
+//
+// The file long.a contains an archive string table.
+//
+// The errors.gox file (an ELF object file) comes from the toolchain's
+// standard library.
+func Test(t *testing.T) {
+	for _, test := range []struct {
+		filename, path, member, wantType string
+	}{
+		{"testdata/errors.gox", "errors", "New", "func(text string) error"},
+		{"testdata/short.a", "short", "F", "func()"},
+		{"testdata/long.a", "long", "F", "func()"},
+	} {
+		t.Logf("filename = %s", test.filename)
+		f, err := os.Open(test.filename)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
+		defer f.Close()
+		r, err := gccgoexportdata.NewReader(f)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
+
+		imports := make(map[string]*types.Package)
+		pkg, err := gccgoexportdata.Read(r, nil, imports, test.path)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
+
+		// Check type of designated package member.
+		obj := pkg.Scope().Lookup(test.member)
+		if obj == nil {
+			t.Errorf("%s.%s not found", test.path, test.member)
+			continue
+		}
+		if obj.Type().String() != test.wantType {
+			t.Errorf("%s.%s.Type = %s, want %s",
+				test.path, test.member, obj.Type(), test.wantType)
+		}
+	}
+}