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Update to current Go library. 

From-SVN: r171732
This commit is contained in:
Ian Lance Taylor 2011-03-30 15:33:16 +00:00
parent f2034d064c
commit f72f416913
114 changed files with 1924 additions and 676 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
gcc/testsuite/go.test/test/fixedbugs/bug243.go
View File

@ -6,12 +6,14 @@
package main
import (
"net"
)
import "os"
// Issue 481: closures and var declarations
// with multiple variables assigned from one
// function call.
func main() {
var listen, _ = net.Listen("tcp", "127.0.0.1:0")
var listen, _ = Listen("tcp", "127.0.0.1:0")
go func() {
for {
@ -20,6 +22,31 @@ func main() {
}
}()
var conn, _ = net.Dial("tcp", "", listen.Addr().String())
var conn, _ = Dial("tcp", "", listen.Addr().String())
_ = conn
}
// Simulated net interface to exercise bug
// without involving a real network.
type T chan int
var global T
func Listen(x, y string) (T, string) {
global = make(chan int)
return global, y
}
func (t T) Addr() os.Error {
return os.ErrorString("stringer")
}
func (t T) Accept() (int, string) {
return <-t, ""
}
func Dial(x, y, z string) (int, string) {
global <- 1
return 0, ""
}

2
libgo/MERGE
View File

@ -1,4 +1,4 @@
31d7feb9281b
342e3b11f21a
The first line of this file holds the Mercurial revision number of the
last merge done from the master library sources.

8
libgo/Makefile.am
View File

@ -657,6 +657,7 @@ endif # !LIBGO_IS_LINUX
endif # !LIBGO_IS_RTEMS
go_net_files = \
go/net/cgo_stub.go \
go/net/dial.go \
go/net/dnsclient.go \
go/net/dnsconfig.go \
@ -664,10 +665,12 @@ go_net_files = \
$(go_net_newpollserver_file) \
go/net/fd.go \
$(go_net_fd_os_file) \
go/net/file.go \
go/net/hosts.go \
go/net/ip.go \
go/net/iprawsock.go \
go/net/ipsock.go \
go/net/lookup.go \
go/net/net.go \
go/net/parse.go \
go/net/pipe.go \
@ -1095,6 +1098,7 @@ go_go_ast_files = \
go/go/ast/ast.go \
go/go/ast/filter.go \
go/go/ast/print.go \
go/go/ast/resolve.go \
go/go/ast/scope.go \
go/go/ast/walk.go
go_go_doc_files = \
@ -2327,8 +2331,8 @@ exp/eval/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: exp/eval/check
go/ast.lo: $(go_go_ast_files) bytes.gox fmt.gox go/token.gox io.gox os.gox \
reflect.gox unicode.gox utf8.gox
go/ast.lo: $(go_go_ast_files) bytes.gox fmt.gox go/scanner.gox go/token.gox \
io.gox os.gox reflect.gox unicode.gox utf8.gox
$(BUILDPACKAGE)
go/ast/check: $(CHECK_DEPS)
@$(MKDIR_P) go/ast

8
libgo/Makefile.in
View File

@ -1039,6 +1039,7 @@ go_mime_files = \
@LIBGO_IS_LINUX_TRUE@@LIBGO_IS_RTEMS_FALSE@go_net_newpollserver_file = go/net/newpollserver.go
@LIBGO_IS_RTEMS_TRUE@go_net_newpollserver_file = go/net/newpollserver_rtems.go
go_net_files = \
go/net/cgo_stub.go \
go/net/dial.go \
go/net/dnsclient.go \
go/net/dnsconfig.go \
@ -1046,10 +1047,12 @@ go_net_files = \
$(go_net_newpollserver_file) \
go/net/fd.go \
$(go_net_fd_os_file) \
go/net/file.go \
go/net/hosts.go \
go/net/ip.go \
go/net/iprawsock.go \
go/net/ipsock.go \
go/net/lookup.go \
go/net/net.go \
go/net/parse.go \
go/net/pipe.go \
@ -1483,6 +1486,7 @@ go_go_ast_files = \
go/go/ast/ast.go \
go/go/ast/filter.go \
go/go/ast/print.go \
go/go/ast/resolve.go \
go/go/ast/scope.go \
go/go/ast/walk.go
@ -4747,8 +4751,8 @@ exp/eval/check: $(CHECK_DEPS)
$(CHECK)
.PHONY: exp/eval/check
go/ast.lo: $(go_go_ast_files) bytes.gox fmt.gox go/token.gox io.gox os.gox \
reflect.gox unicode.gox utf8.gox
go/ast.lo: $(go_go_ast_files) bytes.gox fmt.gox go/scanner.gox go/token.gox \
io.gox os.gox reflect.gox unicode.gox utf8.gox
$(BUILDPACKAGE)
go/ast/check: $(CHECK_DEPS)
@$(MKDIR_P) go/ast

3
libgo/go/archive/tar/writer_test.go
View File

@ -150,5 +150,8 @@ testLoop:
t.Errorf("test %d: Incorrect result: (-=expected, +=actual)\n%v",
i, bytediff(expected, actual))
}
if testing.Short() { // The second test is expensive.
break
}
}
}

34
libgo/go/asn1/asn1.go
View File

@ -389,6 +389,11 @@ func parseSequenceOf(bytes []byte, sliceType *reflect.SliceType, elemType reflec
if err != nil {
return
}
// We pretend that GENERAL STRINGs are PRINTABLE STRINGs so
// that a sequence of them can be parsed into a []string.
if t.tag == tagGeneralString {
t.tag = tagPrintableString
}
if t.class != classUniversal || t.isCompound != compoundType || t.tag != expectedTag {
err = StructuralError{"sequence tag mismatch"}
return
@ -516,7 +521,11 @@ func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParam
return
}
if params.explicit {
if t.class == classContextSpecific && t.tag == *params.tag && (t.length == 0 || t.isCompound) {
expectedClass := classContextSpecific
if params.application {
expectedClass = classApplication
}
if t.class == expectedClass && t.tag == *params.tag && (t.length == 0 || t.isCompound) {
if t.length > 0 {
t, offset, err = parseTagAndLength(bytes, offset)
if err != nil {
@ -551,6 +560,10 @@ func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParam
if universalTag == tagPrintableString && t.tag == tagIA5String {
universalTag = tagIA5String
}
// Likewise for GeneralString
if universalTag == tagPrintableString && t.tag == tagGeneralString {
universalTag = tagGeneralString
}
// Special case for time: UTCTime and GeneralizedTime both map to the
// Go type time.Time.
@ -566,6 +579,11 @@ func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParam
expectedTag = *params.tag
}
if !params.explicit && params.application && params.tag != nil {
expectedClass = classApplication
expectedTag = *params.tag
}
// We have unwrapped any explicit tagging at this point.
if t.class != expectedClass || t.tag != expectedTag || t.isCompound != compoundType {
// Tags don't match. Again, it could be an optional element.
@ -701,6 +719,12 @@ func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParam
v, err = parseIA5String(innerBytes)
case tagT61String:
v, err = parseT61String(innerBytes)
case tagGeneralString:
// GeneralString is specified in ISO-2022/ECMA-35,
// A brief review suggests that it includes structures
// that allow the encoding to change midstring and
// such. We give up and pass it as an 8-bit string.
v, err = parseT61String(innerBytes)
default:
err = SyntaxError{fmt.Sprintf("internal error: unknown string type %d", universalTag)}
}
@ -776,8 +800,14 @@ func setDefaultValue(v reflect.Value, params fieldParameters) (ok bool) {
// Other ASN.1 types are not supported; if it encounters them,
// Unmarshal returns a parse error.
func Unmarshal(b []byte, val interface{}) (rest []byte, err os.Error) {
return UnmarshalWithParams(b, val, "")
}
// UnmarshalWithParams allows field parameters to be specified for the
// top-level element. The form of the params is the same as the field tags.
func UnmarshalWithParams(b []byte, val interface{}, params string) (rest []byte, err os.Error) {
v := reflect.NewValue(val).(*reflect.PtrValue).Elem()
offset, err := parseField(v, b, 0, fieldParameters{})
offset, err := parseField(v, b, 0, parseFieldParameters(params))
if err != nil {
return nil, err
}

3
libgo/go/asn1/asn1_test.go
View File

@ -249,11 +249,12 @@ var parseFieldParametersTestData []parseFieldParametersTest = []parseFieldParame
{"printable", fieldParameters{stringType: tagPrintableString}},
{"optional", fieldParameters{optional: true}},
{"explicit", fieldParameters{explicit: true, tag: new(int)}},
{"application", fieldParameters{application: true, tag: new(int)}},
{"optional,explicit", fieldParameters{optional: true, explicit: true, tag: new(int)}},
{"default:42", fieldParameters{defaultValue: newInt64(42)}},
{"tag:17", fieldParameters{tag: newInt(17)}},
{"optional,explicit,default:42,tag:17", fieldParameters{optional: true, explicit: true, defaultValue: newInt64(42), tag: newInt(17)}},
{"optional,explicit,default:42,tag:17,rubbish1", fieldParameters{true, true, newInt64(42), newInt(17), 0, false}},
{"optional,explicit,default:42,tag:17,rubbish1", fieldParameters{true, true, false, newInt64(42), newInt(17), 0, false}},
{"set", fieldParameters{set: true}},
}

10
libgo/go/asn1/common.go
View File

@ -32,6 +32,7 @@ const (
tagIA5String = 22
tagUTCTime = 23
tagGeneralizedTime = 24
tagGeneralString = 27
)
const (
@ -67,7 +68,8 @@ type tagAndLength struct {
// fieldParameters is the parsed representation of tag string from a structure field.
type fieldParameters struct {
optional bool // true iff the field is OPTIONAL
explicit bool // true iff and EXPLICIT tag is in use.
explicit bool // true iff an EXPLICIT tag is in use.
application bool // true iff an APPLICATION tag is in use.
defaultValue *int64 // a default value for INTEGER typed fields (maybe nil).
tag *int // the EXPLICIT or IMPLICIT tag (maybe nil).
stringType int // the string tag to use when marshaling.
@ -89,7 +91,6 @@ func parseFieldParameters(str string) (ret fieldParameters) {
ret.explicit = true
if ret.tag == nil {
ret.tag = new(int)
*ret.tag = 0
}
case part == "ia5":
ret.stringType = tagIA5String
@ -109,6 +110,11 @@ func parseFieldParameters(str string) (ret fieldParameters) {
}
case part == "set":
ret.set = true
case part == "application":
ret.application = true
if ret.tag == nil {
ret.tag = new(int)
}
}
}
return

11
libgo/go/big/int_test.go
View File

@ -716,18 +716,25 @@ var composites = []string{
func TestProbablyPrime(t *testing.T) {
nreps := 20
if testing.Short() {
nreps = 1
}
for i, s := range primes {
p, _ := new(Int).SetString(s, 10)
if !ProbablyPrime(p, 20) {
if !ProbablyPrime(p, nreps) {
t.Errorf("#%d prime found to be non-prime (%s)", i, s)
}
}
for i, s := range composites {
c, _ := new(Int).SetString(s, 10)
if ProbablyPrime(c, 20) {
if ProbablyPrime(c, nreps) {
t.Errorf("#%d composite found to be prime (%s)", i, s)
}
if testing.Short() {
break
}
}
}

12
libgo/go/bytes/buffer_test.go
View File

@ -178,7 +178,11 @@ func TestBasicOperations(t *testing.T) {
func TestLargeStringWrites(t *testing.T) {
var buf Buffer
for i := 3; i < 30; i += 3 {
limit := 30
if testing.Short() {
limit = 9
}
for i := 3; i < limit; i += 3 {
s := fillString(t, "TestLargeWrites (1)", &buf, "", 5, data)
empty(t, "TestLargeStringWrites (2)", &buf, s, make([]byte, len(data)/i))
}
@ -188,7 +192,11 @@ func TestLargeStringWrites(t *testing.T) {
func TestLargeByteWrites(t *testing.T) {
var buf Buffer
for i := 3; i < 30; i += 3 {
limit := 30
if testing.Short() {
limit = 9
}
for i := 3; i < limit; i += 3 {
s := fillBytes(t, "TestLargeWrites (1)", &buf, "", 5, bytes)
empty(t, "TestLargeByteWrites (2)", &buf, s, make([]byte, len(data)/i))
}

18
libgo/go/bytes/bytes.go
View File

@ -293,20 +293,10 @@ func Join(a [][]byte, sep []byte) []byte {
}
b := make([]byte, n)
bp := 0
for i := 0; i < len(a); i++ {
s := a[i]
for j := 0; j < len(s); j++ {
b[bp] = s[j]
bp++
}
if i+1 < len(a) {
s = sep
for j := 0; j < len(s); j++ {
b[bp] = s[j]
bp++
}
}
bp := copy(b, a[0])
for _, s := range a[1:] {
bp += copy(b[bp:], sep)
bp += copy(b[bp:], s)
}
return b
}

5
libgo/go/bytes/bytes_test.go
View File

@ -201,7 +201,10 @@ func TestIndexByte(t *testing.T) {
// test a larger buffer with different sizes and alignments
func TestIndexByteBig(t *testing.T) {
const n = 1024
var n = 1024
if testing.Short() {
n = 128
}
b := make([]byte, n)
for i := 0; i < n; i++ {
// different start alignments

9
libgo/go/container/vector/numbers_test.go
View File

@ -33,6 +33,9 @@ func s(n uint64) string {
func TestVectorNums(t *testing.T) {
if testing.Short() {
return
}
var v Vector
c := int(0)
runtime.GC()
@ -51,6 +54,9 @@ func TestVectorNums(t *testing.T) {
func TestIntVectorNums(t *testing.T) {
if testing.Short() {
return
}
var v IntVector
c := int(0)
runtime.GC()
@ -69,6 +75,9 @@ func TestIntVectorNums(t *testing.T) {
func TestStringVectorNums(t *testing.T) {
if testing.Short() {
return
}
var v StringVector
c := ""
runtime.GC()

4
libgo/go/crypto/cipher/ctr.go
View File

@ -22,6 +22,10 @@ type ctr struct {
// NewCTR returns a Stream which encrypts/decrypts using the given Block in
// counter mode. The length of iv must be the same as the Block's block size.
func NewCTR(block Block, iv []byte) Stream {
if len(iv) != block.BlockSize() {
panic("cipher.NewCTR: iv length must equal block size")
}
return &ctr{
b: block,
ctr: dup(iv),

11
libgo/go/crypto/ecdsa/ecdsa_test.go
View File

@ -20,12 +20,15 @@ func testKeyGeneration(t *testing.T, c *elliptic.Curve, tag string) {
return
}
if !c.IsOnCurve(priv.PublicKey.X, priv.PublicKey.Y) {
t.Errorf("%s: public key invalid", tag, err)
t.Errorf("%s: public key invalid: %s", tag, err)
}
}
func TestKeyGeneration(t *testing.T) {
testKeyGeneration(t, elliptic.P224(), "p224")
if testing.Short() {
return
}
testKeyGeneration(t, elliptic.P256(), "p256")
testKeyGeneration(t, elliptic.P384(), "p384")
testKeyGeneration(t, elliptic.P521(), "p521")
@ -53,6 +56,9 @@ func testSignAndVerify(t *testing.T, c *elliptic.Curve, tag string) {
func TestSignAndVerify(t *testing.T) {
testSignAndVerify(t, elliptic.P224(), "p224")
if testing.Short() {
return
}
testSignAndVerify(t, elliptic.P256(), "p256")
testSignAndVerify(t, elliptic.P384(), "p384")
testSignAndVerify(t, elliptic.P521(), "p521")
@ -214,5 +220,8 @@ func TestVectors(t *testing.T) {
if Verify(&pub, hashed, r, s) != test.ok {
t.Errorf("%d: bad result", i)
}
if testing.Short() {
break
}
}
}

3
libgo/go/crypto/elliptic/elliptic_test.go
View File

@ -297,6 +297,9 @@ func TestBaseMult(t *testing.T) {
if fmt.Sprintf("%x", x) != e.x || fmt.Sprintf("%x", y) != e.y {
t.Errorf("%d: bad output for k=%s: got (%x, %s), want (%s, %s)", i, e.k, x, y, e.x, e.y)
}
if testing.Short() && i > 5 {
break
}
}
}

3
libgo/go/crypto/openpgp/s2k/s2k_test.go
View File

@ -90,5 +90,8 @@ func TestParse(t *testing.T) {
if !bytes.Equal(out, expected) {
t.Errorf("%d: output got: %x want: %x", i, out, expected)
}
if testing.Short() {
break
}
}
}

6
libgo/go/crypto/rand/rand_test.go
View File

@ -11,7 +11,11 @@ import (
)
func TestRead(t *testing.T) {
b := make([]byte, 4e6)
var n int = 4e6
if testing.Short() {
n = 1e5
}
b := make([]byte, n)
n, err := Read(b)
if n != len(b) || err != nil {
t.Fatalf("Read(buf) = %d, %s", n, err)

6
libgo/go/crypto/rsa/pkcs1v15_test.go
View File

@ -97,7 +97,11 @@ func TestEncryptPKCS1v15(t *testing.T) {
return true
}
quick.Check(tryEncryptDecrypt, nil)
config := new(quick.Config)
if testing.Short() {
config.MaxCount = 10
}
quick.Check(tryEncryptDecrypt, config)
}
// These test vectors were generated with `openssl rsautl -pkcs -encrypt`

9
libgo/go/crypto/rsa/rsa_test.go
View File

@ -15,7 +15,11 @@ import (
func TestKeyGeneration(t *testing.T) {
random := rand.Reader
priv, err := GenerateKey(random, 1024)
size := 1024
if testing.Short() {
size = 128
}
priv, err := GenerateKey(random, size)
if err != nil {
t.Errorf("failed to generate key")
}
@ -99,6 +103,9 @@ func TestDecryptOAEP(t *testing.T) {
t.Errorf("#%d,%d (blind) bad result: %#v (want %#v)", i, j, out, message.in)
}
}
if testing.Short() {
break
}
}
}

8
libgo/go/crypto/tls/common.go
View File

@ -93,9 +93,10 @@ const (
// ConnectionState records basic TLS details about the connection.
type ConnectionState struct {
HandshakeComplete bool
CipherSuite uint16
NegotiatedProtocol string
HandshakeComplete bool
CipherSuite uint16
NegotiatedProtocol string
NegotiatedProtocolIsMutual bool
// the certificate chain that was presented by the other side
PeerCertificates []*x509.Certificate
@ -124,7 +125,6 @@ type Config struct {
RootCAs *CASet
// NextProtos is a list of supported, application level protocols.
// Currently only server-side handling is supported.
NextProtos []string
// ServerName is included in the client's handshake to support virtual

4
libgo/go/crypto/tls/conn.go
View File

@ -35,7 +35,8 @@ type Conn struct {
ocspResponse []byte // stapled OCSP response
peerCertificates []*x509.Certificate
clientProtocol string
clientProtocol string
clientProtocolFallback bool
// first permanent error
errMutex sync.Mutex
@ -761,6 +762,7 @@ func (c *Conn) ConnectionState() ConnectionState {
state.HandshakeComplete = c.handshakeComplete
if c.handshakeComplete {
state.NegotiatedProtocol = c.clientProtocol
state.NegotiatedProtocolIsMutual = !c.clientProtocolFallback
state.CipherSuite = c.cipherSuite
state.PeerCertificates = c.peerCertificates
}

33
libgo/go/crypto/tls/handshake_client.go
View File

@ -29,6 +29,7 @@ func (c *Conn) clientHandshake() os.Error {
serverName: c.config.ServerName,
supportedCurves: []uint16{curveP256, curveP384, curveP521},
supportedPoints: []uint8{pointFormatUncompressed},
nextProtoNeg: len(c.config.NextProtos) > 0,
}
t := uint32(c.config.time())
@ -66,6 +67,11 @@ func (c *Conn) clientHandshake() os.Error {
return c.sendAlert(alertUnexpectedMessage)
}
if !hello.nextProtoNeg && serverHello.nextProtoNeg {
c.sendAlert(alertHandshakeFailure)
return os.ErrorString("server advertised unrequested NPN")
}
suite, suiteId := mutualCipherSuite(c.config.cipherSuites(), serverHello.cipherSuite)
if suite == nil {
return c.sendAlert(alertHandshakeFailure)
@ -267,6 +273,17 @@ func (c *Conn) clientHandshake() os.Error {
c.out.prepareCipherSpec(clientCipher, clientHash)
c.writeRecord(recordTypeChangeCipherSpec, []byte{1})
if serverHello.nextProtoNeg {
nextProto := new(nextProtoMsg)
proto, fallback := mutualProtocol(c.config.NextProtos, serverHello.nextProtos)
nextProto.proto = proto
c.clientProtocol = proto
c.clientProtocolFallback = fallback
finishedHash.Write(nextProto.marshal())
c.writeRecord(recordTypeHandshake, nextProto.marshal())
}
finished := new(finishedMsg)
finished.verifyData = finishedHash.clientSum(masterSecret)
finishedHash.Write(finished.marshal())
@ -299,3 +316,19 @@ func (c *Conn) clientHandshake() os.Error {
c.cipherSuite = suiteId
return nil
}
// mutualProtocol finds the mutual Next Protocol Negotiation protocol given the
// set of client and server supported protocols. The set of client supported
// protocols must not be empty. It returns the resulting protocol and flag
// indicating if the fallback case was reached.
func mutualProtocol(clientProtos, serverProtos []string) (string, bool) {
for _, s := range serverProtos {
for _, c := range clientProtos {
if s == c {
return s, false
}
}
}
return clientProtos[0], true
}

2
libgo/go/crypto/tls/handshake_client_test.go
View File

@ -50,7 +50,7 @@ func TestRunClient(t *testing.T) {
testConfig.CipherSuites = []uint16{TLS_ECDHE_RSA_WITH_RC4_128_SHA}
conn, err := Dial("tcp", "", "127.0.0.1:10443", testConfig)
conn, err := Dial("tcp", "127.0.0.1:10443", testConfig)
if err != nil {
t.Fatal(err)
}

6
libgo/go/crypto/tls/handshake_messages_test.go
View File

@ -34,7 +34,11 @@ func TestMarshalUnmarshal(t *testing.T) {
for i, iface := range tests {
ty := reflect.NewValue(iface).Type()
for j := 0; j < 100; j++ {
n := 100
if testing.Short() {
n = 5
}
for j := 0; j < n; j++ {
v, ok := quick.Value(ty, rand)
if !ok {
t.Errorf("#%d: failed to create value", i)

5
libgo/go/crypto/tls/tls.go
View File

@ -87,8 +87,9 @@ func Listen(network, laddr string, config *Config) (*Listener, os.Error) {
// Dial interprets a nil configuration as equivalent to
// the zero configuration; see the documentation of Config
// for the defaults.
func Dial(network, laddr, raddr string, config *Config) (*Conn, os.Error) {
c, err := net.Dial(network, laddr, raddr)
func Dial(network, addr string, config *Config) (*Conn, os.Error) {
raddr := addr
c, err := net.Dial(network, raddr)
if err != nil {
return nil, err
}

77
libgo/go/crypto/x509/x509.go
View File

@ -304,6 +304,42 @@ const (
KeyUsageDecipherOnly
)
// RFC 5280, 4.2.1.12 Extended Key Usage
//
// anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 }
//
// id-kp OBJECT IDENTIFIER ::= { id-pkix 3 }
//
// id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 }
// id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 }
// id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 }
// id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 }
// id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 }
// id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 }
var (
oidExtKeyUsageAny = asn1.ObjectIdentifier{2, 5, 29, 37, 0}
oidExtKeyUsageServerAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 1}
oidExtKeyUsageClientAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 2}
oidExtKeyUsageCodeSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 3}
oidExtKeyUsageEmailProtection = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 4}
oidExtKeyUsageTimeStamping = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 8}
oidExtKeyUsageOCSPSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 9}
)
// ExtKeyUsage represents an extended set of actions that are valid for a given key.
// Each of the ExtKeyUsage* constants define a unique action.
type ExtKeyUsage int
const (
ExtKeyUsageAny ExtKeyUsage = iota
ExtKeyUsageServerAuth
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
ExtKeyUsageEmailProtection
ExtKeyUsageTimeStamping
ExtKeyUsageOCSPSigning
)
// A Certificate represents an X.509 certificate.
type Certificate struct {
Raw []byte // Raw ASN.1 DER contents.
@ -320,6 +356,9 @@ type Certificate struct {
NotBefore, NotAfter *time.Time // Validity bounds.
KeyUsage KeyUsage
ExtKeyUsage []ExtKeyUsage // Sequence of extended key usages.
UnknownExtKeyUsage []asn1.ObjectIdentifier // Encountered extended key usages unknown to this package.
BasicConstraintsValid bool // if true then the next two fields are valid.
IsCA bool
MaxPathLen int
@ -666,6 +705,44 @@ func parseCertificate(in *certificate) (*Certificate, os.Error) {
out.AuthorityKeyId = a.Id
continue
case 37:
// RFC 5280, 4.2.1.12. Extended Key Usage
// id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 }
//
// ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
//
// KeyPurposeId ::= OBJECT IDENTIFIER
var keyUsage []asn1.ObjectIdentifier
_, err = asn1.Unmarshal(e.Value, &keyUsage)
if err != nil {
return nil, err
}
for _, u := range keyUsage {
switch {
case u.Equal(oidExtKeyUsageAny):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageAny)
case u.Equal(oidExtKeyUsageServerAuth):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageServerAuth)
case u.Equal(oidExtKeyUsageClientAuth):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageClientAuth)
case u.Equal(oidExtKeyUsageCodeSigning):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageCodeSigning)
case u.Equal(oidExtKeyUsageEmailProtection):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageEmailProtection)
case u.Equal(oidExtKeyUsageTimeStamping):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageTimeStamping)
case u.Equal(oidExtKeyUsageOCSPSigning):
out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageOCSPSigning)
default:
out.UnknownExtKeyUsage = append(out.UnknownExtKeyUsage, u)
}
}
continue
case 14:
// RFC 5280, 4.2.1.2
var keyid []byte

3
libgo/go/debug/gosym/pclntab_test.go
View File

@ -143,9 +143,6 @@ func TestLineAline(t *testing.T) {
}
}
// gotest: if [ "$(uname)-$(uname -m)" = Linux-x86_64 -a "$GOARCH" = amd64 ]; then
// gotest: mkdir -p _test && $AS pclinetest.s && $LD -E main -o _test/pclinetest pclinetest.$O
// gotest: fi
func TestPCLine(t *testing.T) {
if !dotest() {
return

37
libgo/go/ebnf/ebnf_test.go
View File

@ -15,31 +15,26 @@ var fset = token.NewFileSet()
var grammars = []string{
`Program = .
`,
`Program = .`,
`Program = foo .
foo = "foo" .
`,
`Program = foo .
foo = "foo" .`,
`Program = "a" | "b" "c" .
`,
`Program = "a" | "b" "c" .`,
`Program = "a" ... "z" .
`,
`Program = "a" ... "z" .`,
`Program = Song .
Song = { Note } .
Note = Do | (Re | Mi | Fa | So | La) | Ti .
Do = "c" .
Re = "d" .
Mi = "e" .
Fa = "f" .
So = "g" .
La = "a" .
Ti = ti .
ti = "b" .
`,
`Program = Song .
Song = { Note } .
Note = Do | (Re | Mi | Fa | So | La) | Ti .
Do = "c" .
Re = "d" .
Mi = "e" .
Fa = "f" .
So = "g" .
La = "a" .
Ti = ti .
ti = "b" .`,
}

8
libgo/go/ebnf/parser.go
View File

@ -18,7 +18,7 @@ type parser struct {
scanner scanner.Scanner
pos token.Pos // token position
tok token.Token // one token look-ahead
lit []byte // token literal
lit string // token literal
}
@ -44,7 +44,7 @@ func (p *parser) errorExpected(pos token.Pos, msg string) {
// make the error message more specific
msg += ", found '" + p.tok.String() + "'"
if p.tok.IsLiteral() {
msg += " " + string(p.lit)
msg += " " + p.lit
}
}
p.error(pos, msg)
@ -63,7 +63,7 @@ func (p *parser) expect(tok token.Token) token.Pos {
func (p *parser) parseIdentifier() *Name {
pos := p.pos
name := string(p.lit)
name := p.lit
p.expect(token.IDENT)
return &Name{pos, name}
}
@ -73,7 +73,7 @@ func (p *parser) parseToken() *Token {
pos := p.pos
value := ""
if p.tok == token.STRING {
value, _ = strconv.Unquote(string(p.lit))
value, _ = strconv.Unquote(p.lit)
// Unquote may fail with an error, but only if the scanner found
// an illegal string in the first place. In this case the error
// has already been reported.

10
libgo/go/exp/datafmt/parser.go
View File

@ -22,7 +22,7 @@ type parser struct {
file *token.File
pos token.Pos // token position
tok token.Token // one token look-ahead
lit []byte // token literal
lit string // token literal
packs map[string]string // PackageName -> ImportPath
rules map[string]expr // RuleName -> Expression
@ -62,7 +62,7 @@ func (p *parser) errorExpected(pos token.Pos, msg string) {
// make the error message more specific
msg += ", found '" + p.tok.String() + "'"
if p.tok.IsLiteral() {
msg += " " + string(p.lit)
msg += " " + p.lit
}
}
p.error(pos, msg)
@ -80,7 +80,7 @@ func (p *parser) expect(tok token.Token) token.Pos {
func (p *parser) parseIdentifier() string {
name := string(p.lit)
name := p.lit
p.expect(token.IDENT)
return name
}
@ -130,7 +130,7 @@ func (p *parser) parseRuleName() (string, bool) {
func (p *parser) parseString() string {
s := ""
if p.tok == token.STRING {
s, _ = strconv.Unquote(string(p.lit))
s, _ = strconv.Unquote(p.lit)
// Unquote may fail with an error, but only if the scanner found
// an illegal string in the first place. In this case the error
// has already been reported.
@ -181,7 +181,7 @@ func (p *parser) parseField() expr {
var fname string
switch p.tok {
case token.ILLEGAL:
if string(p.lit) != "@" {
if p.lit != "@" {
return nil
}
fname = "@"

6
libgo/go/exp/draw/x11/conn.go
View File

@ -286,11 +286,11 @@ func connect(display string) (conn net.Conn, displayStr string, err os.Error) {
}
// Make the connection.
if socket != "" {
conn, err = net.Dial("unix", "", socket+":"+displayStr)
conn, err = net.Dial("unix", socket+":"+displayStr)
} else if host != "" {
conn, err = net.Dial(protocol, "", host+":"+strconv.Itoa(6000+displayInt))
conn, err = net.Dial(protocol, host+":"+strconv.Itoa(6000+displayInt))
} else {
conn, err = net.Dial("unix", "", "/tmp/.X11-unix/X"+displayStr)
conn, err = net.Dial("unix", "/tmp/.X11-unix/X"+displayStr)
}
if err != nil {
return nil, "", os.NewError("cannot connect to " + display + ": " + err.String())

8
libgo/go/exp/eval/eval_test.go
View File

@ -39,9 +39,13 @@ type job struct {
}
func runTests(t *testing.T, baseName string, tests []test) {
for i, test := range tests {
delta := 1
if testing.Short() {
delta = 16
}
for i := 0; i < len(tests); i += delta {
name := fmt.Sprintf("%s[%d]", baseName, i)
test.run(t, name)
tests[i].run(t, name)
}
}

2
libgo/go/exp/ogle/cmd.go
View File

@ -205,7 +205,7 @@ func parseLoad(args []byte) (ident string, path string, err os.Error) {
sc, ev := newScanner(args)
var toks [4]token.Token
var lits [4][]byte
var lits [4]string
for i := range toks {
_, toks[i], lits[i] = sc.Scan()
}

2
libgo/go/flag/flag.go
View File

@ -56,7 +56,7 @@
flag.Bool(...) // global options
flag.Parse() // parse leading command
subcmd := flag.Arg[0]
subcmd := flag.Arg(0)
switch subcmd {
// add per-subcommand options
}

3
libgo/go/fmt/fmt_test.go
View File

@ -442,6 +442,9 @@ func BenchmarkSprintfPrefixedInt(b *testing.B) {
}
func TestCountMallocs(t *testing.T) {
if testing.Short() {
return
}
mallocs := 0 - runtime.MemStats.Mallocs
for i := 0; i < 100; i++ {
Sprintf("")

18
libgo/go/go/ast/ast.go
View File

@ -66,7 +66,7 @@ type Decl interface {
// A Comment node represents a single //-style or /*-style comment.
type Comment struct {
Slash token.Pos // position of "/" starting the comment
Text []byte // comment text (excluding '\n' for //-style comments)
Text string // comment text (excluding '\n' for //-style comments)
}
@ -199,7 +199,7 @@ type (
BasicLit struct {
ValuePos token.Pos // literal position
Kind token.Token // token.INT, token.FLOAT, token.IMAG, token.CHAR, or token.STRING
Value []byte // literal string; e.g. 42, 0x7f, 3.14, 1e-9, 2.4i, 'a', '\x7f', "foo" or `\m\n\o`
Value string // literal string; e.g. 42, 0x7f, 3.14, 1e-9, 2.4i, 'a', '\x7f', "foo" or `\m\n\o`
}
// A FuncLit node represents a function literal.
@ -781,7 +781,7 @@ type (
ImportSpec struct {
Doc *CommentGroup // associated documentation; or nil
Name *Ident // local package name (including "."); or nil
Path *BasicLit // package path
Path *BasicLit // import path
Comment *CommentGroup // line comments; or nil
}
@ -925,8 +925,9 @@ type File struct {
Package token.Pos // position of "package" keyword
Name *Ident // package name
Decls []Decl // top-level declarations; or nil
Scope *Scope // package scope
Unresolved []*Ident // unresolved global identifiers
Scope *Scope // package scope (this file only)
Imports []*ImportSpec // imports in this file
Unresolved []*Ident // unresolved identifiers in this file
Comments []*CommentGroup // list of all comments in the source file
}
@ -944,9 +945,10 @@ func (f *File) End() token.Pos {
// collectively building a Go package.
//
type Package struct {
Name string // package name
Scope *Scope // package scope
Files map[string]*File // Go source files by filename
Name string // package name
Scope *Scope // package scope
Imports map[string]*Scope // map of import path -> package scope across all files
Files map[string]*File // Go source files by filename
}

5
libgo/go/go/ast/filter.go
View File

@ -304,7 +304,7 @@ const (
// separator is an empty //-style comment that is interspersed between
// different comment groups when they are concatenated into a single group
//
var separator = &Comment{noPos, []byte("//")}
var separator = &Comment{noPos, "//"}
// MergePackageFiles creates a file AST by merging the ASTs of the
@ -426,5 +426,6 @@ func MergePackageFiles(pkg *Package, mode MergeMode) *File {
}
// TODO(gri) need to compute pkgScope and unresolved identifiers!
return &File{doc, pos, NewIdent(pkg.Name), decls, nil, nil, comments}
// TODO(gri) need to compute imports!
return &File{doc, pos, NewIdent(pkg.Name), decls, nil, nil, nil, comments}
}

188
libgo/go/go/ast/resolve.go Normal file
View File

@ -0,0 +1,188 @@
// Copyright 2011 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.
// This file implements NewPackage.
package ast
import (
"fmt"
"go/scanner"
"go/token"
"os"
)
type pkgBuilder struct {
scanner.ErrorVector
fset *token.FileSet
}
func (p *pkgBuilder) error(pos token.Pos, msg string) {
p.Error(p.fset.Position(pos), msg)
}
func (p *pkgBuilder) errorf(pos token.Pos, format string, args ...interface{}) {
p.error(pos, fmt.Sprintf(format, args...))
}
func (p *pkgBuilder) declare(scope, altScope *Scope, obj *Object) {
alt := scope.Insert(obj)
if alt == nil && altScope != nil {
// see if there is a conflicting declaration in altScope
alt = altScope.Lookup(obj.Name)
}
if alt != nil {
prevDecl := ""
if pos := alt.Pos(); pos.IsValid() {
prevDecl = fmt.Sprintf("\n\tprevious declaration at %s", p.fset.Position(pos))
}
p.error(obj.Pos(), fmt.Sprintf("%s redeclared in this block%s", obj.Name, prevDecl))
}
}
func resolve(scope *Scope, ident *Ident) bool {
for ; scope != nil; scope = scope.Outer {
if obj := scope.Lookup(ident.Name); obj != nil {
ident.Obj = obj
return true
}
}
return false
}
// NewPackage uses an Importer to resolve imports. Given an importPath,
// an importer returns the imported package's name, its scope of exported
// objects, and an error, if any.
//
type Importer func(path string) (name string, scope *Scope, err os.Error)
// NewPackage creates a new Package node from a set of File nodes. It resolves
// unresolved identifiers across files and updates each file's Unresolved list
// accordingly. If a non-nil importer and universe scope are provided, they are
// used to resolve identifiers not declared in any of the package files. Any
// remaining unresolved identifiers are reported as undeclared. If the files
// belong to different packages, one package name is selected and files with
// different package name are reported and then ignored.
// The result is a package node and a scanner.ErrorList if there were errors.
//
func NewPackage(fset *token.FileSet, files map[string]*File, importer Importer, universe *Scope) (*Package, os.Error) {
var p pkgBuilder
p.fset = fset
// complete package scope
pkgName := ""
pkgScope := NewScope(universe)
for _, file := range files {
// package names must match
switch name := file.Name.Name; {
case pkgName == "":
pkgName = name
case name != pkgName:
p.errorf(file.Package, "package %s; expected %s", name, pkgName)
continue // ignore this file
}
// collect top-level file objects in package scope
for _, obj := range file.Scope.Objects {
p.declare(pkgScope, nil, obj)
}
}
// imports maps import paths to package names and scopes
// TODO(gri): Eventually we like to get to the import scope from
// a package object. Then we can have a map path -> Obj.
type importedPkg struct {
name string
scope *Scope
}
imports := make(map[string]*importedPkg)
// complete file scopes with imports and resolve identifiers
for _, file := range files {
// ignore file if it belongs to a different package
// (error has already been reported)
if file.Name.Name != pkgName {
continue
}
// build file scope by processing all imports
importErrors := false
fileScope := NewScope(pkgScope)
for _, spec := range file.Imports {
// add import to global map of imports
path := string(spec.Path.Value)
path = path[1 : len(path)-1] // strip ""'s
pkg := imports[path]
if pkg == nil {
if importer == nil {
importErrors = true
continue
}
name, scope, err := importer(path)
if err != nil {
p.errorf(spec.Path.Pos(), "could not import %s (%s)", path, err)
importErrors = true
continue
}
pkg = &importedPkg{name, scope}
imports[path] = pkg
// TODO(gri) If a local package name != "." is provided,
// global identifier resolution could proceed even if the
// import failed. Consider adjusting the logic here a bit.
}
// local name overrides imported package name
name := pkg.name
if spec.Name != nil {
name = spec.Name.Name
}
// add import to file scope
if name == "." {
// merge imported scope with file scope
for _, obj := range pkg.scope.Objects {
p.declare(fileScope, pkgScope, obj)
}
} else {
// declare imported package object in file scope
obj := NewObj(Pkg, name)
obj.Decl = spec
p.declare(fileScope, pkgScope, obj)
}
}
// resolve identifiers
if importErrors {
// don't use the universe scope without correct imports
// (objects in the universe may be shadowed by imports;
// with missing imports identifiers might get resolved
// wrongly)
pkgScope.Outer = nil
}
i := 0
for _, ident := range file.Unresolved {
if !resolve(fileScope, ident) {
p.errorf(ident.Pos(), "undeclared name: %s", ident.Name)
file.Unresolved[i] = ident
i++
}
}
file.Unresolved = file.Unresolved[0:i]
pkgScope.Outer = universe // reset universe scope
}
// collect all import paths and respective package scopes
importedScopes := make(map[string]*Scope)
for path, pkg := range imports {
importedScopes[path] = pkg.scope
}
return &Package{pkgName, pkgScope, importedScopes, files}, p.GetError(scanner.Sorted)
}

15
libgo/go/go/ast/scope.go
View File

@ -39,16 +39,14 @@ func (s *Scope) Lookup(name string) *Object {
}
// Insert attempts to insert a named object into the scope s.
// If the scope does not contain an object with that name yet,
// Insert inserts the object and returns it. Otherwise, Insert
// leaves the scope unchanged and returns the object found in
// the scope instead.
// Insert attempts to insert a named object obj into the scope s.
// If the scope already contains an object alt with the same name,
// Insert leaves the scope unchanged and returns alt. Otherwise
// it inserts obj and returns nil."
//
func (s *Scope) Insert(obj *Object) (alt *Object) {
if alt = s.Objects[obj.Name]; alt == nil {
s.Objects[obj.Name] = obj
alt = obj
}
return
}
@ -101,6 +99,11 @@ func (obj *Object) Pos() token.Pos {
return n.Pos()
}
}
case *ImportSpec:
if d.Name != nil && d.Name.Name == name {
return d.Name.Pos()
}
return d.Path.Pos()
case *ValueSpec:
for _, n := range d.Names {
if n.Name == name {

2
libgo/go/go/doc/comment.go
View File

@ -286,7 +286,7 @@ func unindent(block [][]byte) {
// nor to have trailing spaces at the end of lines.
// The comment markers have already been removed.
//
// Turn each run of multiple \n into </p><p>
// Turn each run of multiple \n into </p><p>.
// Turn each run of indented lines into a <pre> block without indent.
//
// URLs in the comment text are converted into links; if the URL also appears

8
libgo/go/go/doc/doc.go
View File

@ -66,7 +66,7 @@ func (doc *docReader) addDoc(comments *ast.CommentGroup) {
n2 := len(comments.List)
list := make([]*ast.Comment, n1+1+n2) // + 1 for separator line
copy(list, doc.doc.List)
list[n1] = &ast.Comment{token.NoPos, []byte("//")} // separator line
list[n1] = &ast.Comment{token.NoPos, "//"} // separator line
copy(list[n1+1:], comments.List)
doc.doc = &ast.CommentGroup{list}
}
@ -105,7 +105,7 @@ func baseTypeName(typ ast.Expr) string {
// if the type is not exported, the effect to
// a client is as if there were no type name
if t.IsExported() {
return string(t.Name)
return t.Name
}
case *ast.StarExpr:
return baseTypeName(t.X)
@ -300,9 +300,9 @@ func (doc *docReader) addFile(src *ast.File) {
// collect BUG(...) comments
for _, c := range src.Comments {
text := c.List[0].Text
if m := bug_markers.FindIndex(text); m != nil {
if m := bug_markers.FindStringIndex(text); m != nil {
// found a BUG comment; maybe empty
if btxt := text[m[1]:]; bug_content.Match(btxt) {
if btxt := text[m[1]:]; bug_content.MatchString(btxt) {
// non-empty BUG comment; collect comment without BUG prefix
list := copyCommentList(c.List)
list[0].Text = text[m[1]:]

5
libgo/go/go/parser/interface.go
View File

@ -69,7 +69,7 @@ func ParseExpr(fset *token.FileSet, filename string, src interface{}) (ast.Expr,
var p parser
p.init(fset, filename, data, 0)
x := p.parseExpr()
x := p.parseRhs()
if p.tok == token.SEMICOLON {
p.next() // consume automatically inserted semicolon, if any
}
@ -159,7 +159,8 @@ func ParseFiles(fset *token.FileSet, filenames []string, mode uint) (pkgs map[st
name := src.Name.Name
pkg, found := pkgs[name]
if !found {
pkg = &ast.Package{name, nil, make(map[string]*ast.File)}
// TODO(gri) Use NewPackage here; reconsider ParseFiles API.
pkg = &ast.Package{name, nil, nil, make(map[string]*ast.File)}
pkgs[name] = pkg
}
pkg.Files[filename] = src

372
libgo/go/go/parser/parser.go
View File

@ -47,17 +47,18 @@ type parser struct {
lineComment *ast.CommentGroup // last line comment
// Next token
pos token.Pos // token position
tok token.Token // one token look-ahead
lit_ []byte // token literal (slice into original source, don't hold on to it)
pos token.Pos // token position
tok token.Token // one token look-ahead
lit string // token literal
// Non-syntactic parser control
exprLev int // < 0: in control clause, >= 0: in expression
// Ordinary identifer scopes
pkgScope *ast.Scope // pkgScope.Outer == nil
topScope *ast.Scope // top-most scope; may be pkgScope
unresolved []*ast.Ident // unresolved global identifiers
pkgScope *ast.Scope // pkgScope.Outer == nil
topScope *ast.Scope // top-most scope; may be pkgScope
unresolved []*ast.Ident // unresolved identifiers
imports []*ast.ImportSpec // list of imports
// Label scope
// (maintained by open/close LabelScope)
@ -95,15 +96,6 @@ func (p *parser) init(fset *token.FileSet, filename string, src []byte, mode uin
}
func (p *parser) lit() []byte {
// make a copy of p.lit_ so that we don't hold on to
// a copy of the entire source indirectly in the AST
t := make([]byte, len(p.lit_))
copy(t, p.lit_)
return t
}
// ----------------------------------------------------------------------------
// Scoping support
@ -141,13 +133,13 @@ func (p *parser) closeLabelScope() {
func (p *parser) declare(decl interface{}, scope *ast.Scope, kind ast.ObjKind, idents ...*ast.Ident) {
for _, ident := range idents {
assert(ident.Obj == nil, "identifier already declared or resolved")
if ident.Name != "_" {
obj := ast.NewObj(kind, ident.Name)
// remember the corresponding declaration for redeclaration
// errors and global variable resolution/typechecking phase
obj.Decl = decl
alt := scope.Insert(obj)
if alt != obj && p.mode&DeclarationErrors != 0 {
if alt := scope.Insert(obj); alt != nil && p.mode&DeclarationErrors != 0 {
prevDecl := ""
if pos := alt.Pos(); pos.IsValid() {
prevDecl = fmt.Sprintf("\n\tprevious declaration at %s", p.file.Position(pos))
@ -166,14 +158,16 @@ func (p *parser) shortVarDecl(idents []*ast.Ident) {
// the same type, and at least one of the non-blank variables is new.
n := 0 // number of new variables
for _, ident := range idents {
assert(ident.Obj == nil, "identifier already declared or resolved")
if ident.Name != "_" {
obj := ast.NewObj(ast.Var, ident.Name)
// short var declarations cannot have redeclaration errors
// and are not global => no need to remember the respective
// declaration
alt := p.topScope.Insert(obj)
if alt == obj {
if alt == nil {
n++ // new declaration
alt = obj
}
ident.Obj = alt
}
@ -184,7 +178,19 @@ func (p *parser) shortVarDecl(idents []*ast.Ident) {
}
func (p *parser) resolve(ident *ast.Ident) {
// The unresolved object is a sentinel to mark identifiers that have been added
// to the list of unresolved identifiers. The sentinel is only used for verifying
// internal consistency.
var unresolved = new(ast.Object)
func (p *parser) resolve(x ast.Expr) {
// nothing to do if x is not an identifier or the blank identifier
ident, _ := x.(*ast.Ident)
if ident == nil {
return
}
assert(ident.Obj == nil, "identifier already declared or resolved")
if ident.Name == "_" {
return
}
@ -195,10 +201,12 @@ func (p *parser) resolve(ident *ast.Ident) {
return
}
}
// collect unresolved global identifiers; ignore the others
if p.topScope == p.pkgScope {
p.unresolved = append(p.unresolved, ident)
}
// all local scopes are known, so any unresolved identifier
// must be found either in the file scope, package scope
// (perhaps in another file), or universe scope --- collect
// them so that they can be resolved later
ident.Obj = unresolved
p.unresolved = append(p.unresolved, ident)
}
@ -244,7 +252,7 @@ func (p *parser) next0() {
s := p.tok.String()
switch {
case p.tok.IsLiteral():
p.printTrace(s, string(p.lit_))
p.printTrace(s, p.lit)
case p.tok.IsOperator(), p.tok.IsKeyword():
p.printTrace("\"" + s + "\"")
default:
@ -252,7 +260,7 @@ func (p *parser) next0() {
}
}
p.pos, p.tok, p.lit_ = p.scanner.Scan()
p.pos, p.tok, p.lit = p.scanner.Scan()
}
// Consume a comment and return it and the line on which it ends.
@ -260,15 +268,16 @@ func (p *parser) consumeComment() (comment *ast.Comment, endline int) {
// /*-style comments may end on a different line than where they start.
// Scan the comment for '\n' chars and adjust endline accordingly.
endline = p.file.Line(p.pos)
if p.lit_[1] == '*' {
for _, b := range p.lit_ {
if b == '\n' {
if p.lit[1] == '*' {
// don't use range here - no need to decode Unicode code points
for i := 0; i < len(p.lit); i++ {
if p.lit[i] == '\n' {
endline++
}
}
}
comment = &ast.Comment{p.pos, p.lit()}
comment = &ast.Comment{p.pos, p.lit}
p.next0()
return
@ -358,12 +367,12 @@ func (p *parser) errorExpected(pos token.Pos, msg string) {
if pos == p.pos {
// the error happened at the current position;
// make the error message more specific
if p.tok == token.SEMICOLON && p.lit_[0] == '\n' {
if p.tok == token.SEMICOLON && p.lit[0] == '\n' {
msg += ", found newline"
} else {
msg += ", found '" + p.tok.String() + "'"
if p.tok.IsLiteral() {
msg += " " + string(p.lit_)
msg += " " + p.lit
}
}
}
@ -388,6 +397,13 @@ func (p *parser) expectSemi() {
}
func assert(cond bool, msg string) {
if !cond {
panic("go/parser internal error: " + msg)
}
}
// ----------------------------------------------------------------------------
// Identifiers
@ -395,7 +411,7 @@ func (p *parser) parseIdent() *ast.Ident {
pos := p.pos
name := "_"
if p.tok == token.IDENT {
name = string(p.lit_)
name = p.lit
p.next()
} else {
p.expect(token.IDENT) // use expect() error handling
@ -422,21 +438,51 @@ func (p *parser) parseIdentList() (list []*ast.Ident) {
// ----------------------------------------------------------------------------
// Common productions
func (p *parser) parseExprList() (list []ast.Expr) {
// If lhs is set, result list elements which are identifiers are not resolved.
func (p *parser) parseExprList(lhs bool) (list []ast.Expr) {
if p.trace {
defer un(trace(p, "ExpressionList"))
}
list = append(list, p.parseExpr())
list = append(list, p.parseExpr(lhs))
for p.tok == token.COMMA {
p.next()
list = append(list, p.parseExpr())
list = append(list, p.parseExpr(lhs))
}
return
}
func (p *parser) parseLhsList() []ast.Expr {
list := p.parseExprList(true)
switch p.tok {
case token.DEFINE:
// lhs of a short variable declaration
p.shortVarDecl(p.makeIdentList(list))
case token.COLON:
// lhs of a label declaration or a communication clause of a select
// statement (parseLhsList is not called when parsing the case clause
// of a switch statement):
// - labels are declared by the caller of parseLhsList
// - for communication clauses, if there is a stand-alone identifier
// followed by a colon, we have a syntax error; there is no need
// to resolve the identifier in that case
default:
// identifiers must be declared elsewhere
for _, x := range list {
p.resolve(x)
}
}
return list
}
func (p *parser) parseRhsList() []ast.Expr {
return p.parseExprList(false)
}
// ----------------------------------------------------------------------------
// Types
@ -458,31 +504,24 @@ func (p *parser) parseType() ast.Expr {
}
func (p *parser) parseQualifiedIdent() ast.Expr {
if p.trace {
defer un(trace(p, "QualifiedIdent"))
}
ident := p.parseIdent()
p.resolve(ident)
var x ast.Expr = ident
if p.tok == token.PERIOD {
// first identifier is a package identifier
p.next()
sel := p.parseIdent()
x = &ast.SelectorExpr{x, sel}
}
return x
}
// If the result is an identifier, it is not resolved.
func (p *parser) parseTypeName() ast.Expr {
if p.trace {
defer un(trace(p, "TypeName"))
}
return p.parseQualifiedIdent()
ident := p.parseIdent()
// don't resolve ident yet - it may be a parameter or field name
if p.tok == token.PERIOD {
// ident is a package name
p.next()
p.resolve(ident)
sel := p.parseIdent()
return &ast.SelectorExpr{ident, sel}
}
return ident
}
@ -497,7 +536,7 @@ func (p *parser) parseArrayType(ellipsisOk bool) ast.Expr {
len = &ast.Ellipsis{p.pos, nil}
p.next()
} else if p.tok != token.RBRACK {
len = p.parseExpr()
len = p.parseRhs()
}
p.expect(token.RBRACK)
elt := p.parseType()
@ -521,7 +560,7 @@ func (p *parser) makeIdentList(list []ast.Expr) []*ast.Ident {
}
func (p *parser) parseFieldDecl() *ast.Field {
func (p *parser) parseFieldDecl(scope *ast.Scope) *ast.Field {
if p.trace {
defer un(trace(p, "FieldDecl"))
}
@ -534,7 +573,7 @@ func (p *parser) parseFieldDecl() *ast.Field {
// optional tag
var tag *ast.BasicLit
if p.tok == token.STRING {
tag = &ast.BasicLit{p.pos, p.tok, p.lit()}
tag = &ast.BasicLit{p.pos, p.tok, p.lit}
p.next()
}
@ -546,6 +585,7 @@ func (p *parser) parseFieldDecl() *ast.Field {
} else {
// ["*"] TypeName (AnonymousField)
typ = list[0] // we always have at least one element
p.resolve(typ)
if n := len(list); n > 1 || !isTypeName(deref(typ)) {
pos := typ.Pos()
p.errorExpected(pos, "anonymous field")
@ -555,7 +595,10 @@ func (p *parser) parseFieldDecl() *ast.Field {
p.expectSemi() // call before accessing p.linecomment
return &ast.Field{doc, idents, typ, tag, p.lineComment}
field := &ast.Field{doc, idents, typ, tag, p.lineComment}
p.declare(field, scope, ast.Var, idents...)
return field
}
@ -566,15 +609,17 @@ func (p *parser) parseStructType() *ast.StructType {
pos := p.expect(token.STRUCT)
lbrace := p.expect(token.LBRACE)
scope := ast.NewScope(nil) // struct scope
var list []*ast.Field
for p.tok == token.IDENT || p.tok == token.MUL || p.tok == token.LPAREN {
// a field declaration cannot start with a '(' but we accept
// it here for more robust parsing and better error messages
// (parseFieldDecl will check and complain if necessary)
list = append(list, p.parseFieldDecl())
list = append(list, p.parseFieldDecl(scope))
}
rbrace := p.expect(token.RBRACE)
// TODO(gri): store struct scope in AST
return &ast.StructType{pos, &ast.FieldList{lbrace, list, rbrace}, false}
}
@ -595,7 +640,7 @@ func (p *parser) tryVarType(isParam bool) ast.Expr {
if isParam && p.tok == token.ELLIPSIS {
pos := p.pos
p.next()
typ := p.tryType() // don't use parseType so we can provide better error message
typ := p.tryIdentOrType(isParam) // don't use parseType so we can provide better error message
if typ == nil {
p.error(pos, "'...' parameter is missing type")
typ = &ast.BadExpr{pos, p.pos}
@ -605,7 +650,7 @@ func (p *parser) tryVarType(isParam bool) ast.Expr {
}
return &ast.Ellipsis{pos, typ}
}
return p.tryType()
return p.tryIdentOrType(false)
}
@ -641,6 +686,9 @@ func (p *parser) parseVarList(isParam bool) (list []ast.Expr, typ ast.Expr) {
// if we had a list of identifiers, it must be followed by a type
typ = p.tryVarType(isParam)
if typ != nil {
p.resolve(typ)
}
return
}
@ -682,6 +730,7 @@ func (p *parser) parseParameterList(scope *ast.Scope, ellipsisOk bool) (params [
// Type { "," Type } (anonymous parameters)
params = make([]*ast.Field, len(list))
for i, x := range list {
p.resolve(x)
params[i] = &ast.Field{Type: x}
}
}
@ -751,7 +800,7 @@ func (p *parser) parseFuncType() (*ast.FuncType, *ast.Scope) {
}
func (p *parser) parseMethodSpec() *ast.Field {
func (p *parser) parseMethodSpec(scope *ast.Scope) *ast.Field {
if p.trace {
defer un(trace(p, "MethodSpec"))
}
@ -759,7 +808,7 @@ func (p *parser) parseMethodSpec() *ast.Field {
doc := p.leadComment
var idents []*ast.Ident
var typ ast.Expr
x := p.parseQualifiedIdent()
x := p.parseTypeName()
if ident, isIdent := x.(*ast.Ident); isIdent && p.tok == token.LPAREN {
// method
idents = []*ast.Ident{ident}
@ -772,7 +821,10 @@ func (p *parser) parseMethodSpec() *ast.Field {
}
p.expectSemi() // call before accessing p.linecomment
return &ast.Field{doc, idents, typ, nil, p.lineComment}
spec := &ast.Field{doc, idents, typ, nil, p.lineComment}
p.declare(spec, scope, ast.Fun, idents...)
return spec
}
@ -783,12 +835,14 @@ func (p *parser) parseInterfaceType() *ast.InterfaceType {
pos := p.expect(token.INTERFACE)
lbrace := p.expect(token.LBRACE)
scope := ast.NewScope(nil) // interface scope
var list []*ast.Field
for p.tok == token.IDENT {
list = append(list, p.parseMethodSpec())
list = append(list, p.parseMethodSpec(scope))
}
rbrace := p.expect(token.RBRACE)
// TODO(gri): store interface scope in AST
return &ast.InterfaceType{pos, &ast.FieldList{lbrace, list, rbrace}, false}
}
@ -832,7 +886,8 @@ func (p *parser) parseChanType() *ast.ChanType {
}
func (p *parser) tryRawType(ellipsisOk bool) ast.Expr {
// If the result is an identifier, it is not resolved.
func (p *parser) tryIdentOrType(ellipsisOk bool) ast.Expr {
switch p.tok {
case token.IDENT:
return p.parseTypeName()
@ -864,7 +919,13 @@ func (p *parser) tryRawType(ellipsisOk bool) ast.Expr {
}
func (p *parser) tryType() ast.Expr { return p.tryRawType(false) }
func (p *parser) tryType() ast.Expr {
typ := p.tryIdentOrType(false)
if typ != nil {
p.resolve(typ)
}
return typ
}
// ----------------------------------------------------------------------------
@ -939,20 +1000,23 @@ func (p *parser) parseFuncTypeOrLit() ast.Expr {
// parseOperand may return an expression or a raw type (incl. array
// types of the form [...]T. Callers must verify the result.
// If lhs is set and the result is an identifier, it is not resolved.
//
func (p *parser) parseOperand() ast.Expr {
func (p *parser) parseOperand(lhs bool) ast.Expr {
if p.trace {
defer un(trace(p, "Operand"))
}
switch p.tok {
case token.IDENT:
ident := p.parseIdent()
p.resolve(ident)
return ident
x := p.parseIdent()
if !lhs {
p.resolve(x)
}
return x
case token.INT, token.FLOAT, token.IMAG, token.CHAR, token.STRING:
x := &ast.BasicLit{p.pos, p.tok, p.lit()}
x := &ast.BasicLit{p.pos, p.tok, p.lit}
p.next()
return x
@ -960,7 +1024,7 @@ func (p *parser) parseOperand() ast.Expr {
lparen := p.pos
p.next()
p.exprLev++
x := p.parseExpr()
x := p.parseRhs()
p.exprLev--
rparen := p.expect(token.RPAREN)
return &ast.ParenExpr{lparen, x, rparen}
@ -969,9 +1033,11 @@ func (p *parser) parseOperand() ast.Expr {
return p.parseFuncTypeOrLit()
default:
t := p.tryRawType(true) // could be type for composite literal or conversion
if t != nil {
return t
if typ := p.tryIdentOrType(true); typ != nil {
// could be type for composite literal or conversion
_, isIdent := typ.(*ast.Ident)
assert(!isIdent, "type cannot be identifier")
return typ
}
}
@ -982,19 +1048,22 @@ func (p *parser) parseOperand() ast.Expr {
}
func (p *parser) parseSelectorOrTypeAssertion(x ast.Expr) ast.Expr {
func (p *parser) parseSelector(x ast.Expr) ast.Expr {
if p.trace {
defer un(trace(p, "SelectorOrTypeAssertion"))
defer un(trace(p, "Selector"))
}
p.expect(token.PERIOD)
if p.tok == token.IDENT {
// selector
sel := p.parseIdent()
return &ast.SelectorExpr{x, sel}
sel := p.parseIdent()
return &ast.SelectorExpr{x, sel}
}
func (p *parser) parseTypeAssertion(x ast.Expr) ast.Expr {
if p.trace {
defer un(trace(p, "TypeAssertion"))
}
// type assertion
p.expect(token.LPAREN)
var typ ast.Expr
if p.tok == token.TYPE {
@ -1019,13 +1088,13 @@ func (p *parser) parseIndexOrSlice(x ast.Expr) ast.Expr {
var low, high ast.Expr
isSlice := false
if p.tok != token.COLON {
low = p.parseExpr()
low = p.parseRhs()
}
if p.tok == token.COLON {
isSlice = true
p.next()
if p.tok != token.RBRACK {
high = p.parseExpr()
high = p.parseRhs()
}
}
p.exprLev--
@ -1048,7 +1117,7 @@ func (p *parser) parseCallOrConversion(fun ast.Expr) *ast.CallExpr {
var list []ast.Expr
var ellipsis token.Pos
for p.tok != token.RPAREN && p.tok != token.EOF && !ellipsis.IsValid() {
list = append(list, p.parseExpr())
list = append(list, p.parseRhs())
if p.tok == token.ELLIPSIS {
ellipsis = p.pos
p.next()
@ -1074,12 +1143,16 @@ func (p *parser) parseElement(keyOk bool) ast.Expr {
return p.parseLiteralValue(nil)
}
x := p.parseExpr()
if keyOk && p.tok == token.COLON {
colon := p.pos
p.next()
x = &ast.KeyValueExpr{x, colon, p.parseElement(false)}
x := p.parseExpr(keyOk) // don't resolve if map key
if keyOk {
if p.tok == token.COLON {
colon := p.pos
p.next()
return &ast.KeyValueExpr{x, colon, p.parseElement(false)}
}
p.resolve(x) // not a map key
}
return x
}
@ -1231,23 +1304,47 @@ func (p *parser) checkExprOrType(x ast.Expr) ast.Expr {
}
func (p *parser) parsePrimaryExpr() ast.Expr {
// If lhs is set and the result is an identifier, it is not resolved.
func (p *parser) parsePrimaryExpr(lhs bool) ast.Expr {
if p.trace {
defer un(trace(p, "PrimaryExpr"))
}
x := p.parseOperand()
x := p.parseOperand(lhs)
L:
for {
switch p.tok {
case token.PERIOD:
x = p.parseSelectorOrTypeAssertion(p.checkExpr(x))
p.next()
if lhs {
p.resolve(x)
}
switch p.tok {
case token.IDENT:
x = p.parseSelector(p.checkExpr(x))
case token.LPAREN:
x = p.parseTypeAssertion(p.checkExpr(x))
default:
pos := p.pos
p.next() // make progress
p.errorExpected(pos, "selector or type assertion")
x = &ast.BadExpr{pos, p.pos}
}
case token.LBRACK:
if lhs {
p.resolve(x)
}
x = p.parseIndexOrSlice(p.checkExpr(x))
case token.LPAREN:
if lhs {
p.resolve(x)
}
x = p.parseCallOrConversion(p.checkExprOrType(x))
case token.LBRACE:
if isLiteralType(x) && (p.exprLev >= 0 || !isTypeName(x)) {
if lhs {
p.resolve(x)
}
x = p.parseLiteralValue(x)
} else {
break L
@ -1255,13 +1352,15 @@ L:
default:
break L
}
lhs = false // no need to try to resolve again
}
return x
}
func (p *parser) parseUnaryExpr() ast.Expr {
// If lhs is set and the result is an identifier, it is not resolved.
func (p *parser) parseUnaryExpr(lhs bool) ast.Expr {
if p.trace {
defer un(trace(p, "UnaryExpr"))
}
@ -1270,7 +1369,7 @@ func (p *parser) parseUnaryExpr() ast.Expr {
case token.ADD, token.SUB, token.NOT, token.XOR, token.AND, token.RANGE:
pos, op := p.pos, p.tok
p.next()
x := p.parseUnaryExpr()
x := p.parseUnaryExpr(false)
return &ast.UnaryExpr{pos, op, p.checkExpr(x)}
case token.ARROW:
@ -1283,32 +1382,37 @@ func (p *parser) parseUnaryExpr() ast.Expr {
return &ast.ChanType{pos, ast.RECV, value}
}
x := p.parseUnaryExpr()
x := p.parseUnaryExpr(false)
return &ast.UnaryExpr{pos, token.ARROW, p.checkExpr(x)}
case token.MUL:
// pointer type or unary "*" expression
pos := p.pos
p.next()
x := p.parseUnaryExpr()
x := p.parseUnaryExpr(false)
return &ast.StarExpr{pos, p.checkExprOrType(x)}
}
return p.parsePrimaryExpr()
return p.parsePrimaryExpr(lhs)
}
func (p *parser) parseBinaryExpr(prec1 int) ast.Expr {
// If lhs is set and the result is an identifier, it is not resolved.
func (p *parser) parseBinaryExpr(lhs bool, prec1 int) ast.Expr {
if p.trace {
defer un(trace(p, "BinaryExpr"))
}
x := p.parseUnaryExpr()
x := p.parseUnaryExpr(lhs)
for prec := p.tok.Precedence(); prec >= prec1; prec-- {
for p.tok.Precedence() == prec {
pos, op := p.pos, p.tok
p.next()
y := p.parseBinaryExpr(prec + 1)
if lhs {
p.resolve(x)
lhs = false
}
y := p.parseBinaryExpr(false, prec+1)
x = &ast.BinaryExpr{p.checkExpr(x), pos, op, p.checkExpr(y)}
}
}
@ -1317,14 +1421,20 @@ func (p *parser) parseBinaryExpr(prec1 int) ast.Expr {
}
// If lhs is set and the result is an identifier, it is not resolved.
// TODO(gri): parseExpr may return a type or even a raw type ([..]int) -
// should reject when a type/raw type is obviously not allowed
func (p *parser) parseExpr() ast.Expr {
func (p *parser) parseExpr(lhs bool) ast.Expr {
if p.trace {
defer un(trace(p, "Expression"))
}
return p.parseBinaryExpr(token.LowestPrec + 1)
return p.parseBinaryExpr(lhs, token.LowestPrec+1)
}
func (p *parser) parseRhs() ast.Expr {
return p.parseExpr(false)
}
@ -1336,7 +1446,7 @@ func (p *parser) parseSimpleStmt(labelOk bool) ast.Stmt {
defer un(trace(p, "SimpleStmt"))
}
x := p.parseExprList()
x := p.parseLhsList()
switch p.tok {
case
@ -1347,10 +1457,7 @@ func (p *parser) parseSimpleStmt(labelOk bool) ast.Stmt {
// assignment statement
pos, tok := p.pos, p.tok
p.next()
y := p.parseExprList()
if tok == token.DEFINE {
p.shortVarDecl(p.makeIdentList(x))
}
y := p.parseRhsList()
return &ast.AssignStmt{x, pos, tok, y}
}
@ -1379,7 +1486,7 @@ func (p *parser) parseSimpleStmt(labelOk bool) ast.Stmt {
// send statement
arrow := p.pos
p.next() // consume "<-"
y := p.parseExpr()
y := p.parseRhs()
return &ast.SendStmt{x[0], arrow, y}
case token.INC, token.DEC:
@ -1395,7 +1502,7 @@ func (p *parser) parseSimpleStmt(labelOk bool) ast.Stmt {
func (p *parser) parseCallExpr() *ast.CallExpr {
x := p.parseExpr()
x := p.parseRhs()
if call, isCall := x.(*ast.CallExpr); isCall {
return call
}
@ -1445,7 +1552,7 @@ func (p *parser) parseReturnStmt() *ast.ReturnStmt {
p.expect(token.RETURN)
var x []ast.Expr
if p.tok != token.SEMICOLON && p.tok != token.RBRACE {
x = p.parseExprList()
x = p.parseRhsList()
}
p.expectSemi()
@ -1500,12 +1607,12 @@ func (p *parser) parseIfStmt() *ast.IfStmt {
p.exprLev = -1
if p.tok == token.SEMICOLON {
p.next()
x = p.parseExpr()
x = p.parseRhs()
} else {
s = p.parseSimpleStmt(false)
if p.tok == token.SEMICOLON {
p.next()
x = p.parseExpr()
x = p.parseRhs()
} else {
x = p.makeExpr(s)
s = nil
@ -1552,7 +1659,7 @@ func (p *parser) parseCaseClause(exprSwitch bool) *ast.CaseClause {
if p.tok == token.CASE {
p.next()
if exprSwitch {
list = p.parseExprList()
list = p.parseRhsList()
} else {
list = p.parseTypeList()
}
@ -1639,7 +1746,7 @@ func (p *parser) parseCommClause() *ast.CommClause {
var comm ast.Stmt
if p.tok == token.CASE {
p.next()
lhs := p.parseExprList()
lhs := p.parseLhsList()
if p.tok == token.ARROW {
// SendStmt
if len(lhs) > 1 {
@ -1648,7 +1755,7 @@ func (p *parser) parseCommClause() *ast.CommClause {
}
arrow := p.pos
p.next()
rhs := p.parseExpr()
rhs := p.parseRhs()
comm = &ast.SendStmt{lhs[0], arrow, rhs}
} else {
// RecvStmt
@ -1663,10 +1770,7 @@ func (p *parser) parseCommClause() *ast.CommClause {
lhs = lhs[0:2]
}
p.next()
rhs = p.parseExpr()
if tok == token.DEFINE {
p.shortVarDecl(p.makeIdentList(lhs))
}
rhs = p.parseRhs()
} else {
// rhs must be single receive operation
if len(lhs) > 1 {
@ -1866,14 +1970,18 @@ func parseImportSpec(p *parser, doc *ast.CommentGroup, _ int) ast.Spec {
var path *ast.BasicLit
if p.tok == token.STRING {
path = &ast.BasicLit{p.pos, p.tok, p.lit()}
path = &ast.BasicLit{p.pos, p.tok, p.lit}
p.next()
} else {
p.expect(token.STRING) // use expect() error handling
}
p.expectSemi() // call before accessing p.linecomment
return &ast.ImportSpec{doc, ident, path, p.lineComment}
// collect imports
spec := &ast.ImportSpec{doc, ident, path, p.lineComment}
p.imports = append(p.imports, spec)
return spec
}
@ -1887,7 +1995,7 @@ func parseConstSpec(p *parser, doc *ast.CommentGroup, iota int) ast.Spec {
var values []ast.Expr
if typ != nil || p.tok == token.ASSIGN || iota == 0 {
p.expect(token.ASSIGN)
values = p.parseExprList()
values = p.parseRhsList()
}
p.expectSemi() // call before accessing p.linecomment
@ -1932,7 +2040,7 @@ func parseVarSpec(p *parser, doc *ast.CommentGroup, _ int) ast.Spec {
var values []ast.Expr
if typ == nil || p.tok == token.ASSIGN {
p.expect(token.ASSIGN)
values = p.parseExprList()
values = p.parseRhsList()
}
p.expectSemi() // call before accessing p.linecomment
@ -2120,20 +2228,20 @@ func (p *parser) parseFile() *ast.File {
}
}
if p.topScope != p.pkgScope {
panic("internal error: imbalanced scopes")
}
assert(p.topScope == p.pkgScope, "imbalanced scopes")
// resolve global identifiers within the same file
i := 0
for _, ident := range p.unresolved {
// i <= index for current ident
ident.Obj = p.pkgScope.Lookup(ident.Name)
assert(ident.Obj == unresolved, "object already resolved")
ident.Obj = p.pkgScope.Lookup(ident.Name) // also removes unresolved sentinel
if ident.Obj == nil {
p.unresolved[i] = ident
i++
}
}
return &ast.File{doc, pos, ident, decls, p.pkgScope, p.unresolved[0:i], p.comments}
// TODO(gri): store p.imports in AST
return &ast.File{doc, pos, ident, decls, p.pkgScope, p.imports, p.unresolved[0:i], p.comments}
}

20
libgo/go/go/printer/nodes.go
View File

@ -160,19 +160,7 @@ func (p *printer) exprList(prev0 token.Pos, list []ast.Expr, depth int, mode exp
// the first linebreak is always a formfeed since this section must not
// depend on any previous formatting
prevBreak := -1 // index of last expression that was followed by a linebreak
linebreakMin := 1
if mode&periodSep != 0 {
// Make fragments like
//
// a.Bar(1,
// 2).Foo
//
// format correctly (a linebreak shouldn't be added before Foo) when
// doing period-separated expr lists by setting minimum linebreak to 0
// lines for them.
linebreakMin = 0
}
if prev.IsValid() && prev.Line < line && p.linebreak(line, linebreakMin, ws, true) {
if prev.IsValid() && prev.Line < line && p.linebreak(line, 0, ws, true) {
ws = ignore
*multiLine = true
prevBreak = 0
@ -237,7 +225,7 @@ func (p *printer) exprList(prev0 token.Pos, list []ast.Expr, depth int, mode exp
// lines are broken using newlines so comments remain aligned
// unless forceFF is set or there are multiple expressions on
// the same line in which case formfeed is used
if p.linebreak(line, linebreakMin, ws, useFF || prevBreak+1 < i) {
if p.linebreak(line, 0, ws, useFF || prevBreak+1 < i) {
ws = ignore
*multiLine = true
prevBreak = i
@ -363,7 +351,7 @@ func (p *printer) isOneLineFieldList(list []*ast.Field) bool {
func (p *printer) setLineComment(text string) {
p.setComment(&ast.CommentGroup{[]*ast.Comment{&ast.Comment{token.NoPos, []byte(text)}}})
p.setComment(&ast.CommentGroup{[]*ast.Comment{&ast.Comment{token.NoPos, text}}})
}
@ -527,7 +515,7 @@ func walkBinary(e *ast.BinaryExpr) (has4, has5 bool, maxProblem int) {
}
case *ast.StarExpr:
if e.Op.String() == "/" {
if e.Op == token.QUO { // `*/`
maxProblem = 5
}

165
libgo/go/go/printer/printer.go
View File

@ -34,12 +34,6 @@ const (
)
const (
esc2 = '\xfe' // an escape byte that cannot occur in regular UTF-8
_ = 1 / (esc2 - tabwriter.Escape) // cause compiler error if esc2 == tabwriter.Escape
)
var (
esc = []byte{tabwriter.Escape}
htab = []byte{'\t'}
@ -81,8 +75,9 @@ type printer struct {
mode pmode // current printer mode
lastTok token.Token // the last token printed (token.ILLEGAL if it's whitespace)
// Buffered whitespace
buffer []whiteSpace
// Reused buffers
wsbuf []whiteSpace // delayed white space
litbuf bytes.Buffer // for creation of escaped literals and comments
// The (possibly estimated) position in the generated output;
// in AST space (i.e., pos is set whenever a token position is
@ -109,7 +104,7 @@ func (p *printer) init(output io.Writer, cfg *Config, fset *token.FileSet, nodeS
p.Config = *cfg
p.fset = fset
p.errors = make(chan os.Error)
p.buffer = make([]whiteSpace, 0, 16) // whitespace sequences are short
p.wsbuf = make([]whiteSpace, 0, 16) // whitespace sequences are short
p.nodeSizes = nodeSizes
}
@ -123,6 +118,20 @@ func (p *printer) internalError(msg ...interface{}) {
}
// escape escapes string s by bracketing it with tabwriter.Escape.
// Escaped strings pass through tabwriter unchanged. (Note that
// valid Go programs cannot contain tabwriter.Escape bytes since
// they do not appear in legal UTF-8 sequences).
//
func (p *printer) escape(s string) string {
p.litbuf.Reset()
p.litbuf.WriteByte(tabwriter.Escape)
p.litbuf.WriteString(s)
p.litbuf.WriteByte(tabwriter.Escape)
return p.litbuf.String()
}
// nlines returns the adjusted number of linebreaks given the desired number
// of breaks n such that min <= result <= max where max depends on the current
// nesting level.
@ -230,7 +239,7 @@ func (p *printer) writeNewlines(n int, useFF bool) {
// source text. writeItem updates p.last to the position immediately following
// the data.
//
func (p *printer) writeItem(pos token.Position, data []byte) {
func (p *printer) writeItem(pos token.Position, data string) {
if pos.IsValid() {
// continue with previous position if we don't have a valid pos
if p.last.IsValid() && p.last.Filename != pos.Filename {
@ -239,7 +248,7 @@ func (p *printer) writeItem(pos token.Position, data []byte) {
// e.g., the result of ast.MergePackageFiles)
p.indent = 0
p.mode = 0
p.buffer = p.buffer[0:0]
p.wsbuf = p.wsbuf[0:0]
}
p.pos = pos
}
@ -248,7 +257,7 @@ func (p *printer) writeItem(pos token.Position, data []byte) {
_, filename := filepath.Split(pos.Filename)
p.write0([]byte(fmt.Sprintf("[%s:%d:%d]", filename, pos.Line, pos.Column)))
}
p.write(data)
p.write([]byte(data))
p.last = p.pos
}
@ -280,11 +289,11 @@ func (p *printer) writeCommentPrefix(pos, next token.Position, prev *ast.Comment
if prev == nil {
// first comment of a comment group
j := 0
for i, ch := range p.buffer {
for i, ch := range p.wsbuf {
switch ch {
case blank:
// ignore any blanks before a comment
p.buffer[i] = ignore
p.wsbuf[i] = ignore
continue
case vtab:
// respect existing tabs - important
@ -318,11 +327,11 @@ func (p *printer) writeCommentPrefix(pos, next token.Position, prev *ast.Comment
if prev == nil {
// first comment of a comment group
j := 0
for i, ch := range p.buffer {
for i, ch := range p.wsbuf {
switch ch {
case blank, vtab:
// ignore any horizontal whitespace before line breaks
p.buffer[i] = ignore
p.wsbuf[i] = ignore
continue
case indent:
// apply pending indentation
@ -339,7 +348,7 @@ func (p *printer) writeCommentPrefix(pos, next token.Position, prev *ast.Comment
}
case newline, formfeed:
// TODO(gri): may want to keep formfeed info in some cases
p.buffer[i] = ignore
p.wsbuf[i] = ignore
}
j = i
break
@ -360,12 +369,8 @@ func (p *printer) writeCommentPrefix(pos, next token.Position, prev *ast.Comment
}
func (p *printer) writeCommentLine(comment *ast.Comment, pos token.Position, line []byte) {
// line must pass through unchanged, bracket it with tabwriter.Escape
line = bytes.Join([][]byte{esc, line, esc}, nil)
p.writeItem(pos, line)
}
// TODO(gri): It should be possible to convert the code below from using
// []byte to string and in the process eliminate some conversions.
// Split comment text into lines
func split(text []byte) [][]byte {
@ -546,13 +551,13 @@ func (p *printer) writeComment(comment *ast.Comment) {
// shortcut common case of //-style comments
if text[1] == '/' {
p.writeCommentLine(comment, p.fset.Position(comment.Pos()), text)
p.writeItem(p.fset.Position(comment.Pos()), p.escape(text))
return
}
// for /*-style comments, print line by line and let the
// write function take care of the proper indentation
lines := split(text)
lines := split([]byte(text))
stripCommonPrefix(lines)
// write comment lines, separated by formfeed,
@ -565,7 +570,7 @@ func (p *printer) writeComment(comment *ast.Comment) {
pos = p.pos
}
if len(line) > 0 {
p.writeCommentLine(comment, pos, line)
p.writeItem(pos, p.escape(string(line)))
}
}
}
@ -578,11 +583,11 @@ func (p *printer) writeComment(comment *ast.Comment) {
// formfeed was dropped from the whitespace buffer.
//
func (p *printer) writeCommentSuffix(needsLinebreak bool) (droppedFF bool) {
for i, ch := range p.buffer {
for i, ch := range p.wsbuf {
switch ch {
case blank, vtab:
// ignore trailing whitespace
p.buffer[i] = ignore
p.wsbuf[i] = ignore
case indent, unindent:
// don't loose indentation information
case newline, formfeed:
@ -594,11 +599,11 @@ func (p *printer) writeCommentSuffix(needsLinebreak bool) (droppedFF bool) {
if ch == formfeed {
droppedFF = true
}
p.buffer[i] = ignore
p.wsbuf[i] = ignore
}
}
}
p.writeWhitespace(len(p.buffer))
p.writeWhitespace(len(p.wsbuf))
// make sure we have a line break
if needsLinebreak {
@ -652,7 +657,7 @@ func (p *printer) writeWhitespace(n int) {
// write entries
var data [1]byte
for i := 0; i < n; i++ {
switch ch := p.buffer[i]; ch {
switch ch := p.wsbuf[i]; ch {
case ignore:
// ignore!
case indent:
@ -670,13 +675,13 @@ func (p *printer) writeWhitespace(n int) {
// the line break and the label, the unindent is not
// part of the comment whitespace prefix and the comment
// will be positioned correctly indented.
if i+1 < n && p.buffer[i+1] == unindent {
if i+1 < n && p.wsbuf[i+1] == unindent {
// Use a formfeed to terminate the current section.
// Otherwise, a long label name on the next line leading
// to a wide column may increase the indentation column
// of lines before the label; effectively leading to wrong
// indentation.
p.buffer[i], p.buffer[i+1] = unindent, formfeed
p.wsbuf[i], p.wsbuf[i+1] = unindent, formfeed
i-- // do it again
continue
}
@ -689,11 +694,11 @@ func (p *printer) writeWhitespace(n int) {
// shift remaining entries down
i := 0
for ; n < len(p.buffer); n++ {
p.buffer[i] = p.buffer[n]
for ; n < len(p.wsbuf); n++ {
p.wsbuf[i] = p.wsbuf[n]
i++
}
p.buffer = p.buffer[0:i]
p.wsbuf = p.wsbuf[0:i]
}
@ -734,7 +739,7 @@ func mayCombine(prev token.Token, next byte) (b bool) {
func (p *printer) print(args ...interface{}) {
for _, f := range args {
next := p.pos // estimated position of next item
var data []byte
var data string
var tok token.Token
switch x := f.(type) {
@ -748,42 +753,22 @@ func (p *printer) print(args ...interface{}) {
// LabeledStmt)
break
}
i := len(p.buffer)
if i == cap(p.buffer) {
i := len(p.wsbuf)
if i == cap(p.wsbuf) {
// Whitespace sequences are very short so this should
// never happen. Handle gracefully (but possibly with
// bad comment placement) if it does happen.
p.writeWhitespace(i)
i = 0
}
p.buffer = p.buffer[0 : i+1]
p.buffer[i] = x
p.wsbuf = p.wsbuf[0 : i+1]
p.wsbuf[i] = x
case *ast.Ident:
data = []byte(x.Name)
data = x.Name
tok = token.IDENT
case *ast.BasicLit:
// escape all literals so they pass through unchanged
// (note that valid Go programs cannot contain
// tabwriter.Escape bytes since they do not appear in
// legal UTF-8 sequences)
data = make([]byte, 0, len(x.Value)+2)
data = append(data, tabwriter.Escape)
data = append(data, x.Value...)
data = append(data, tabwriter.Escape)
data = p.escape(x.Value)
tok = x.Kind
// If we have a raw string that spans multiple lines and
// the opening quote (`) is on a line preceded only by
// indentation, we don't want to write that indentation
// because the following lines of the raw string are not
// indented. It's easiest to correct the output at the end
// via the trimmer (because of the complex handling of
// white space).
// Mark multi-line raw strings by replacing the opening
// quote with esc2 and have the trimmer take care of fixing
// it up. (Do this _after_ making a copy of data!)
if data[1] == '`' && bytes.IndexByte(data, '\n') > 0 {
data[1] = esc2
}
case token.Token:
s := x.String()
if mayCombine(p.lastTok, s[0]) {
@ -793,13 +778,13 @@ func (p *printer) print(args ...interface{}) {
// (except for token.INT followed by a '.' this
// should never happen because it is taken care
// of via binary expression formatting)
if len(p.buffer) != 0 {
if len(p.wsbuf) != 0 {
p.internalError("whitespace buffer not empty")
}
p.buffer = p.buffer[0:1]
p.buffer[0] = ' '
p.wsbuf = p.wsbuf[0:1]
p.wsbuf[0] = ' '
}
data = []byte(s)
data = s
tok = x
case token.Pos:
if x.IsValid() {
@ -813,7 +798,7 @@ func (p *printer) print(args ...interface{}) {
p.lastTok = tok
p.pos = next
if data != nil {
if data != "" {
droppedFF := p.flush(next, tok)
// intersperse extra newlines if present in the source
@ -848,7 +833,7 @@ func (p *printer) flush(next token.Position, tok token.Token) (droppedFF bool) {
droppedFF = p.intersperseComments(next, tok)
} else {
// otherwise, write any leftover whitespace
p.writeWhitespace(len(p.buffer))
p.writeWhitespace(len(p.wsbuf))
}
return
}
@ -864,10 +849,9 @@ func (p *printer) flush(next token.Position, tok token.Token) (droppedFF bool) {
// through unchanged.
//
type trimmer struct {
output io.Writer
state int
space bytes.Buffer
hasText bool
output io.Writer
state int
space bytes.Buffer
}
@ -875,15 +859,11 @@ type trimmer struct {
// It can be in one of the following states:
const (
inSpace = iota // inside space
atEscape // inside space and the last char was an opening tabwriter.Escape
inEscape // inside text bracketed by tabwriter.Escapes
inText // inside text
)
var backquote = []byte{'`'}
// Design note: It is tempting to eliminate extra blanks occurring in
// whitespace in this function as it could simplify some
// of the blanks logic in the node printing functions.
@ -892,9 +872,8 @@ var backquote = []byte{'`'}
func (p *trimmer) Write(data []byte) (n int, err os.Error) {
// invariants:
// p.state == inSpace, atEscape:
// p.state == inSpace:
// p.space is unwritten
// p.hasText indicates if there is any text on this line
// p.state == inEscape, inText:
// data[m:n] is unwritten
m := 0
@ -911,32 +890,20 @@ func (p *trimmer) Write(data []byte) (n int, err os.Error) {
case '\n', '\f':
p.space.Reset() // discard trailing space
_, err = p.output.Write(newlines[0:1]) // write newline
p.hasText = false
case tabwriter.Escape:
p.state = atEscape
_, err = p.output.Write(p.space.Bytes())
p.state = inEscape
m = n + 1 // +1: skip tabwriter.Escape
default:
_, err = p.output.Write(p.space.Bytes())
p.state = inText
m = n
}
case atEscape:
// discard indentation if we have a multi-line raw string
// (see printer.print for details)
if b != esc2 || p.hasText {
_, err = p.output.Write(p.space.Bytes())
}
p.state = inEscape
m = n
if b == esc2 {
_, err = p.output.Write(backquote) // convert back
m++
}
case inEscape:
if b == tabwriter.Escape {
_, err = p.output.Write(data[m:n])
p.state = inSpace
p.space.Reset()
p.hasText = true
}
case inText:
switch b {
@ -945,19 +912,18 @@ func (p *trimmer) Write(data []byte) (n int, err os.Error) {
p.state = inSpace
p.space.Reset()
p.space.WriteByte(b) // WriteByte returns no errors
p.hasText = true
case '\n', '\f':
_, err = p.output.Write(data[m:n])
p.state = inSpace
p.space.Reset()
_, err = p.output.Write(newlines[0:1]) // write newline
p.hasText = false
case tabwriter.Escape:
_, err = p.output.Write(data[m:n])
p.state = atEscape
p.space.Reset()
p.hasText = true
p.state = inEscape
m = n + 1 // +1: skip tabwriter.Escape
}
default:
panic("unreachable")
}
if err != nil {
return
@ -970,7 +936,6 @@ func (p *trimmer) Write(data []byte) (n int, err os.Error) {
_, err = p.output.Write(data[m:n])
p.state = inSpace
p.space.Reset()
p.hasText = true
}
return

9
libgo/go/go/printer/printer_test.go
View File

@ -114,7 +114,7 @@ func check(t *testing.T, source, golden string, mode checkMode) {
// start a timer to produce a time-out signal
tc := make(chan int)
go func() {
time.Sleep(20e9) // plenty of a safety margin, even for very slow machines
time.Sleep(10e9) // plenty of a safety margin, even for very slow machines
tc <- 0
}()
@ -156,12 +156,15 @@ var data = []entry{
func TestFiles(t *testing.T) {
for _, e := range data {
for i, e := range data {
source := filepath.Join(dataDir, e.source)
golden := filepath.Join(dataDir, e.golden)
check(t, source, golden, e.mode)
// TODO(gri) check that golden is idempotent
//check(t, golden, golden, e.mode);
//check(t, golden, golden, e.mode)
if testing.Short() && i >= 3 {
break
}
}
}

28
libgo/go/go/printer/testdata/expressions.golden vendored
View File

@ -253,8 +253,8 @@ bar`
var _ = ``
var _ = `foo`
var _ =
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var _ = // comment
@ -262,8 +262,8 @@ bar`
var _ = // comment
`foo`
var _ = // comment
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var _ = /* comment */ ``
@ -276,12 +276,12 @@ bar`
var _ = /* comment */
`foo`
var _ = /* comment */
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var board = []int(
`...........
`...........
...........
....●●●....
....●●●....
@ -296,8 +296,8 @@ bar`
var state = S{
"foo",
// the next line should not be indented
`...........
// the next line should remain indented
`...........
...........
....●●●....
....●●●....
@ -619,3 +619,13 @@ func _() {
b.(T).
c
}
// Don't introduce extra newlines in strangely formatted expression lists.
func f() {
// os.Open parameters should remain on two lines
if writer, err = os.Open(outfile, s.O_WRONLY|os.O_CREATE|
os.O_TRUNC,0666); err != nil {
log.Fatal(err)
}
}

18
libgo/go/go/printer/testdata/expressions.input vendored
View File

@ -256,7 +256,7 @@ var _ =
var _ =
`foo`
var _ =
// the next line should not be indented
// the next line should remain indented
`foo
bar`
@ -266,7 +266,7 @@ bar`
var _ = // comment
`foo`
var _ = // comment
// the next line should not be indented
// the next line should remain indented
`foo
bar`
@ -282,7 +282,7 @@ bar`
var _ = /* comment */
`foo`
var _ = /* comment */
// the next line should not be indented
// the next line should remain indented
`foo
bar`
@ -304,7 +304,7 @@ var board = []int(
var state = S{
"foo",
// the next line should not be indented
// the next line should remain indented
`...........
...........
....●●●....
@ -625,3 +625,13 @@ baz()
(T).
c
}
// Don't introduce extra newlines in strangely formatted expression lists.
func f() {
// os.Open parameters should remain on two lines
if writer, err = os.Open(outfile, s.O_WRONLY|os.O_CREATE|
os.O_TRUNC, 0666); err != nil {
log.Fatal(err)
}
}

31
libgo/go/go/printer/testdata/expressions.raw vendored
View File

@ -239,7 +239,8 @@ func _() {
_ = `foo
bar`
_ = `three spaces before the end of the line starting here:
they must not be removed` }
they must not be removed`
}
func _() {
@ -252,8 +253,8 @@ bar`
var _ = ``
var _ = `foo`
var _ =
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var _ = // comment
@ -261,8 +262,8 @@ bar`
var _ = // comment
`foo`
var _ = // comment
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var _ = /* comment */ ``
@ -275,12 +276,12 @@ bar`
var _ = /* comment */
`foo`
var _ = /* comment */
// the next line should not be indented
`foo
// the next line should remain indented
`foo
bar`
var board = []int(
`...........
`...........
...........
....●●●....
....●●●....
@ -295,8 +296,8 @@ bar`
var state = S{
"foo",
// the next line should not be indented
`...........
// the next line should remain indented
`...........
...........
....●●●....
....●●●....
@ -618,3 +619,13 @@ func _() {
b.(T).
c
}
// Don't introduce extra newlines in strangely formatted expression lists.
func f() {
// os.Open parameters should remain on two lines
if writer, err = os.Open(outfile, s.O_WRONLY|os.O_CREATE|
os.O_TRUNC,0666); err != nil {
log.Fatal(err)
}
}

22
libgo/go/go/scanner/scanner.go
View File

@ -538,14 +538,12 @@ func (S *Scanner) switch4(tok0, tok1 token.Token, ch2 int, tok2, tok3 token.Toke
}
var newline = []byte{'\n'}
// Scan scans the next token and returns the token position pos,
// the token tok, and the literal text lit corresponding to the
// Scan scans the next token and returns the token position,
// the token, and the literal string corresponding to the
// token. The source end is indicated by token.EOF.
//
// If the returned token is token.SEMICOLON, the corresponding
// literal value is ";" if the semicolon was present in the source,
// literal string is ";" if the semicolon was present in the source,
// and "\n" if the semicolon was inserted because of a newline or
// at EOF.
//
@ -560,7 +558,7 @@ var newline = []byte{'\n'}
// set with Init. Token positions are relative to that file
// and thus relative to the file set.
//
func (S *Scanner) Scan() (token.Pos, token.Token, []byte) {
func (S *Scanner) Scan() (token.Pos, token.Token, string) {
scanAgain:
S.skipWhitespace()
@ -586,7 +584,7 @@ scanAgain:
case -1:
if S.insertSemi {
S.insertSemi = false // EOF consumed
return S.file.Pos(offs), token.SEMICOLON, newline
return S.file.Pos(offs), token.SEMICOLON, "\n"
}
tok = token.EOF
case '\n':
@ -594,7 +592,7 @@ scanAgain:
// set in the first place and exited early
// from S.skipWhitespace()
S.insertSemi = false // newline consumed
return S.file.Pos(offs), token.SEMICOLON, newline
return S.file.Pos(offs), token.SEMICOLON, "\n"
case '"':
insertSemi = true
tok = token.STRING
@ -662,7 +660,7 @@ scanAgain:
S.offset = offs
S.rdOffset = offs + 1
S.insertSemi = false // newline consumed
return S.file.Pos(offs), token.SEMICOLON, newline
return S.file.Pos(offs), token.SEMICOLON, "\n"
}
S.scanComment()
if S.mode&ScanComments == 0 {
@ -711,5 +709,9 @@ scanAgain:
if S.mode&InsertSemis != 0 {
S.insertSemi = insertSemi
}
return S.file.Pos(offs), tok, S.src[offs:S.offset]
// TODO(gri): The scanner API should change such that the literal string
// is only valid if an actual literal was scanned. This will
// permit a more efficient implementation.
return S.file.Pos(offs), tok, string(S.src[offs:S.offset])
}

15
libgo/go/go/scanner/scanner_test.go
View File

@ -234,12 +234,11 @@ func TestScan(t *testing.T) {
index := 0
epos := token.Position{"", 0, 1, 1} // expected position
for {
pos, tok, litb := s.Scan()
pos, tok, lit := s.Scan()
e := elt{token.EOF, "", special}
if index < len(tokens) {
e = tokens[index]
}
lit := string(litb)
if tok == token.EOF {
lit = "<EOF>"
epos.Line = src_linecount
@ -257,7 +256,7 @@ func TestScan(t *testing.T) {
}
epos.Offset += len(lit) + len(whitespace)
epos.Line += newlineCount(lit) + whitespace_linecount
if tok == token.COMMENT && litb[1] == '/' {
if tok == token.COMMENT && lit[1] == '/' {
// correct for unaccounted '/n' in //-style comment
epos.Offset++
epos.Line++
@ -292,7 +291,7 @@ func checkSemi(t *testing.T, line string, mode uint) {
semiPos.Column++
pos, tok, lit = S.Scan()
if tok == token.SEMICOLON {
if string(lit) != semiLit {
if lit != semiLit {
t.Errorf(`bad literal for %q: got %q, expected %q`, line, lit, semiLit)
}
checkPos(t, line, pos, semiPos)
@ -493,7 +492,7 @@ func TestLineComments(t *testing.T) {
for _, s := range segments {
p, _, lit := S.Scan()
pos := file.Position(p)
checkPos(t, string(lit), p, token.Position{s.filename, pos.Offset, s.line, pos.Column})
checkPos(t, lit, p, token.Position{s.filename, pos.Offset, s.line, pos.Column})
}
if S.ErrorCount != 0 {
@ -547,10 +546,10 @@ func TestIllegalChars(t *testing.T) {
for offs, ch := range src {
pos, tok, lit := s.Scan()
if poffs := file.Offset(pos); poffs != offs {
t.Errorf("bad position for %s: got %d, expected %d", string(lit), poffs, offs)
t.Errorf("bad position for %s: got %d, expected %d", lit, poffs, offs)
}
if tok == token.ILLEGAL && string(lit) != string(ch) {
t.Errorf("bad token: got %s, expected %s", string(lit), string(ch))
if tok == token.ILLEGAL && lit != string(ch) {
t.Errorf("bad token: got %s, expected %s", lit, string(ch))
}
}

15
libgo/go/go/token/token.go
View File

@ -126,10 +126,7 @@ const (
)
// At the moment we have no array literal syntax that lets us describe
// the index for each element - use a map for now to make sure they are
// in sync.
var tokens = map[Token]string{
var tokens = [...]string{
ILLEGAL: "ILLEGAL",
EOF: "EOF",
@ -237,10 +234,14 @@ var tokens = map[Token]string{
// constant name (e.g. for the token IDENT, the string is "IDENT").
//
func (tok Token) String() string {
if str, exists := tokens[tok]; exists {
return str
s := ""
if 0 <= tok && tok < Token(len(tokens)) {
s = tokens[tok]
}
return "token(" + strconv.Itoa(int(tok)) + ")"
if s == "" {
s = "token(" + strconv.Itoa(int(tok)) + ")"
}
return s
}

2
libgo/go/go/typechecker/scope.go
View File

@ -33,7 +33,7 @@ func (tc *typechecker) declInScope(scope *ast.Scope, kind ast.ObjKind, name *ast
//obj.N = n
name.Obj = obj
if name.Name != "_" {
if alt := scope.Insert(obj); alt != obj {
if alt := scope.Insert(obj); alt != nil {
tc.Errorf(name.Pos(), "%s already declared at %s", name.Name, tc.fset.Position(alt.Pos()).String())
}
}

6
libgo/go/go/typechecker/typechecker.go
View File

@ -53,7 +53,7 @@ func CheckPackage(fset *token.FileSet, pkg *ast.Package, importer Importer) os.E
//
func CheckFile(fset *token.FileSet, file *ast.File, importer Importer) os.Error {
// create a single-file dummy package
pkg := &ast.Package{file.Name.Name, nil, map[string]*ast.File{fset.Position(file.Name.NamePos).Filename: file}}
pkg := &ast.Package{file.Name.Name, nil, nil, map[string]*ast.File{fset.Position(file.Name.NamePos).Filename: file}}
return CheckPackage(fset, pkg, importer)
}
@ -327,8 +327,8 @@ func (tc *typechecker) checkBlock(body []ast.Stmt, ftype *Type) {
if ftype != nil {
for _, par := range ftype.Params.Objects {
if par.Name != "_" {
obj := tc.topScope.Insert(par)
assert(obj == par) // ftype has no double declarations
alt := tc.topScope.Insert(par)
assert(alt == nil) // ftype has no double declarations
}
}
}

2
libgo/go/go/typechecker/typechecker_test.go
View File

@ -78,7 +78,7 @@ func expectedErrors(t *testing.T, pkg *ast.Package) (list scanner.ErrorList) {
case token.EOF:
break loop
case token.COMMENT:
s := errRx.FindSubmatch(lit)
s := errRx.FindStringSubmatch(lit)
if len(s) == 2 {
list = append(list, &scanner.Error{fset.Position(prev), string(s[1])})
}

2
libgo/go/go/typechecker/universe.go
View File

@ -14,7 +14,7 @@ var Universe *ast.Scope
func def(obj *ast.Object) {
alt := Universe.Insert(obj)
if alt != obj {
if alt != nil {
panic("object declared twice")
}
}

6
libgo/go/gob/type.go
View File

@ -407,7 +407,7 @@ func (s *structType) string() string { return s.safeString(make(map[typeId]bool)
func newStructType(name string) *structType {
s := &structType{CommonType{Name: name}, nil}
// For historical reasons we set the id here rather than init.
// Se the comment in newTypeObject for details.
// See the comment in newTypeObject for details.
setTypeId(s)
return s
}
@ -545,7 +545,7 @@ func getBaseType(name string, rt reflect.Type) (gobType, os.Error) {
// getType returns the Gob type describing the given reflect.Type.
// Should be called only when handling GobEncoders/Decoders,
// which may be pointers. All other types are handled through the
// base type, never a pointer.
// base type, never a pointer.
// typeLock must be held.
func getType(name string, ut *userTypeInfo, rt reflect.Type) (gobType, os.Error) {
typ, present := types[rt]
@ -561,7 +561,7 @@ func getType(name string, ut *userTypeInfo, rt reflect.Type) (gobType, os.Error)
func checkId(want, got typeId) {
if want != got {
fmt.Fprintf(os.Stderr, "checkId: %d should be %d\n", int(want), int(got))
fmt.Fprintf(os.Stderr, "checkId: %d should be %d\n", int(got), int(want))
panic("bootstrap type wrong id: " + got.name() + " " + got.string() + " not " + want.string())
}
}

5
libgo/go/http/fs.go
View File

@ -154,7 +154,10 @@ func serveFile(w ResponseWriter, r *Request, name string, redirect bool) {
// handle Content-Range header.
// TODO(adg): handle multiple ranges
ranges, err := parseRange(r.Header.Get("Range"), size)
if err != nil || len(ranges) > 1 {
if err == nil && len(ranges) > 1 {
err = os.ErrorString("multiple ranges not supported")
}
if err != nil {
Error(w, err.String(), StatusRequestedRangeNotSatisfiable)
return
}

36
libgo/go/http/pprof/pprof.go
View File

@ -18,6 +18,10 @@
//
// pprof http://localhost:6060/debug/pprof/heap
//
// Or to look at a 30-second CPU profile:
//
// pprof http://localhost:6060/debug/pprof/profile
//
package pprof
import (
@ -29,10 +33,12 @@ import (
"runtime/pprof"
"strconv"
"strings"
"time"
)
func init() {
http.Handle("/debug/pprof/cmdline", http.HandlerFunc(Cmdline))
http.Handle("/debug/pprof/profile", http.HandlerFunc(Profile))
http.Handle("/debug/pprof/heap", http.HandlerFunc(Heap))
http.Handle("/debug/pprof/symbol", http.HandlerFunc(Symbol))
}
@ -41,22 +47,46 @@ func init() {
// command line, with arguments separated by NUL bytes.
// The package initialization registers it as /debug/pprof/cmdline.
func Cmdline(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "text/plain; charset=utf-8")
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, strings.Join(os.Args, "\x00"))
}
// Heap responds with the pprof-formatted heap profile.
// The package initialization registers it as /debug/pprof/heap.
func Heap(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "text/plain; charset=utf-8")
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
pprof.WriteHeapProfile(w)
}
// Profile responds with the pprof-formatted cpu profile.
// The package initialization registers it as /debug/pprof/profile.
func Profile(w http.ResponseWriter, r *http.Request) {
sec, _ := strconv.Atoi64(r.FormValue("seconds"))
if sec == 0 {
sec = 30
}
// Set Content Type assuming StartCPUProfile will work,
// because if it does it starts writing.
w.Header().Set("Content-Type", "application/octet-stream")
if err := pprof.StartCPUProfile(w); err != nil {
// StartCPUProfile failed, so no writes yet.
// Can change header back to text content
// and send error code.
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, "Could not enable CPU profiling: %s\n", err)
return
}
time.Sleep(sec * 1e9)
pprof.StopCPUProfile()
}
// Symbol looks up the program counters listed in the request,
// responding with a table mapping program counters to function names.
// The package initialization registers it as /debug/pprof/symbol.
func Symbol(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "text/plain; charset=utf-8")
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
// We don't know how many symbols we have, but we
// do have symbol information. Pprof only cares whether

8
libgo/go/http/serve_test.go
View File

@ -175,7 +175,7 @@ func TestHostHandlers(t *testing.T) {
ts := httptest.NewServer(nil)
defer ts.Close()
conn, err := net.Dial("tcp", "", ts.Listener.Addr().String())
conn, err := net.Dial("tcp", ts.Listener.Addr().String())
if err != nil {
t.Fatal(err)
}
@ -265,7 +265,7 @@ func TestServerTimeouts(t *testing.T) {
// Slow client that should timeout.
t1 := time.Nanoseconds()
conn, err := net.Dial("tcp", "", fmt.Sprintf("localhost:%d", addr.Port))
conn, err := net.Dial("tcp", fmt.Sprintf("localhost:%d", addr.Port))
if err != nil {
t.Fatalf("Dial: %v", err)
}
@ -348,7 +348,7 @@ func TestIdentityResponse(t *testing.T) {
}
// Verify that the connection is closed when the declared Content-Length
// is larger than what the handler wrote.
conn, err := net.Dial("tcp", "", ts.Listener.Addr().String())
conn, err := net.Dial("tcp", ts.Listener.Addr().String())
if err != nil {
t.Fatalf("error dialing: %v", err)
}
@ -377,7 +377,7 @@ func TestServeHTTP10Close(t *testing.T) {
}))
defer s.Close()
conn, err := net.Dial("tcp", "", s.Listener.Addr().String())
conn, err := net.Dial("tcp", s.Listener.Addr().String())
if err != nil {
t.Fatal("dial error:", err)
}

2
libgo/go/http/transport.go
View File

@ -195,7 +195,7 @@ func (t *Transport) getConn(cm *connectMethod) (*persistConn, os.Error) {
return pc, nil
}
conn, err := net.Dial("tcp", "", cm.addr())
conn, err := net.Dial("tcp", cm.addr())
if err != nil {
return nil, err
}

12
libgo/go/image/png/reader_test.go
View File

@ -34,6 +34,12 @@ var filenames = []string{
"basn6a16",
}
var filenamesShort = []string{
"basn0g01",
"basn0g04-31",
"basn6a16",
}
func readPng(filename string) (image.Image, os.Error) {
f, err := os.Open(filename, os.O_RDONLY, 0444)
if err != nil {
@ -157,7 +163,11 @@ func sng(w io.WriteCloser, filename string, png image.Image) {
}
func TestReader(t *testing.T) {
for _, fn := range filenames {
names := filenames
if testing.Short() {
names = filenamesShort
}
for _, fn := range names {
// Read the .png file.
img, err := readPng("testdata/pngsuite/" + fn + ".png")
if err != nil {

6
libgo/go/image/png/writer_test.go
View File

@ -32,7 +32,11 @@ func diff(m0, m1 image.Image) os.Error {
func TestWriter(t *testing.T) {
// The filenames variable is declared in reader_test.go.
for _, fn := range filenames {
names := filenames
if testing.Short() {
names = filenamesShort
}
for _, fn := range names {
qfn := "testdata/pngsuite/" + fn + ".png"
// Read the image.
m0, err := readPng(qfn)

1
libgo/go/json/decode_test.go
View File

@ -157,6 +157,7 @@ func TestUnmarshal(t *testing.T) {
}
func TestUnmarshalMarshal(t *testing.T) {
initBig()
var v interface{}
if err := Unmarshal(jsonBig, &v); err != nil {
t.Fatalf("Unmarshal: %v", err)

25
libgo/go/json/scanner_test.go
View File

@ -85,6 +85,7 @@ func TestIndent(t *testing.T) {
// Tests of a large random structure.
func TestCompactBig(t *testing.T) {
initBig()
var buf bytes.Buffer
if err := Compact(&buf, jsonBig); err != nil {
t.Fatalf("Compact: %v", err)
@ -98,6 +99,7 @@ func TestCompactBig(t *testing.T) {
}
func TestIndentBig(t *testing.T) {
initBig()
var buf bytes.Buffer
if err := Indent(&buf, jsonBig, "", "\t"); err != nil {
t.Fatalf("Indent1: %v", err)
@ -135,6 +137,7 @@ func TestIndentBig(t *testing.T) {
}
func TestNextValueBig(t *testing.T) {
initBig()
var scan scanner
item, rest, err := nextValue(jsonBig, &scan)
if err != nil {
@ -160,6 +163,7 @@ func TestNextValueBig(t *testing.T) {
}
func BenchmarkSkipValue(b *testing.B) {
initBig()
var scan scanner
for i := 0; i < b.N; i++ {
nextValue(jsonBig, &scan)
@ -191,12 +195,23 @@ func trim(b []byte) []byte {
var jsonBig []byte
func init() {
b, err := Marshal(genValue(10000))
if err != nil {
panic(err)
const (
big = 10000
small = 100
)
func initBig() {
n := big
if testing.Short() {
n = small
}
if len(jsonBig) != n {
b, err := Marshal(genValue(n))
if err != nil {
panic(err)
}
jsonBig = b
}
jsonBig = b
}
func genValue(n int) interface{} {

21
libgo/go/net/cgo_stub.go Normal file
View File

@ -0,0 +1,21 @@
// Copyright 2011 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.
// Stub cgo routines for systems that do not use cgo to do network lookups.
package net
import "os"
func cgoLookupHost(name string) (addrs []string, err os.Error, completed bool) {
return nil, nil, false
}
func cgoLookupPort(network, service string) (port int, err os.Error, completed bool) {
return 0, nil, false
}
func cgoLookupIP(name string) (addrs []IP, err os.Error, completed bool) {
return nil, nil, false
}

79
libgo/go/net/dial.go
View File

@ -6,9 +6,7 @@ package net
import "os"
// Dial connects to the remote address raddr on the network net.
// If the string laddr is not empty, it is used as the local address
// for the connection.
// Dial connects to the address addr on the network net.
//
// Known networks are "tcp", "tcp4" (IPv4-only), "tcp6" (IPv6-only),
// "udp", "udp4" (IPv4-only), "udp6" (IPv6-only), "ip", "ip4"
@ -16,79 +14,56 @@ import "os"
//
// For IP networks, addresses have the form host:port. If host is
// a literal IPv6 address, it must be enclosed in square brackets.
// The functions JoinHostPort and SplitHostPort manipulate
// addresses in this form.
//
// Examples:
// Dial("tcp", "", "12.34.56.78:80")
// Dial("tcp", "", "google.com:80")
// Dial("tcp", "", "[de:ad:be:ef::ca:fe]:80")
// Dial("tcp", "127.0.0.1:123", "127.0.0.1:88")
// Dial("tcp", "12.34.56.78:80")
// Dial("tcp", "google.com:80")
// Dial("tcp", "[de:ad:be:ef::ca:fe]:80")
//
func Dial(net, laddr, raddr string) (c Conn, err os.Error) {
func Dial(net, addr string) (c Conn, err os.Error) {
raddr := addr
if raddr == "" {
return nil, &OpError{"dial", net, nil, errMissingAddress}
}
switch net {
case "tcp", "tcp4", "tcp6":
var la, ra *TCPAddr
if laddr != "" {
if la, err = ResolveTCPAddr(laddr); err != nil {
goto Error
}
var ra *TCPAddr
if ra, err = ResolveTCPAddr(raddr); err != nil {
goto Error
}
if raddr != "" {
if ra, err = ResolveTCPAddr(raddr); err != nil {
goto Error
}
}
c, err := DialTCP(net, la, ra)
c, err := DialTCP(net, nil, ra)
if err != nil {
return nil, err
}
return c, nil
case "udp", "udp4", "udp6":
var la, ra *UDPAddr
if laddr != "" {
if la, err = ResolveUDPAddr(laddr); err != nil {
goto Error
}
var ra *UDPAddr
if ra, err = ResolveUDPAddr(raddr); err != nil {
goto Error
}
if raddr != "" {
if ra, err = ResolveUDPAddr(raddr); err != nil {
goto Error
}
}
c, err := DialUDP(net, la, ra)
c, err := DialUDP(net, nil, ra)
if err != nil {
return nil, err
}
return c, nil
case "unix", "unixgram", "unixpacket":
var la, ra *UnixAddr
if raddr != "" {
if ra, err = ResolveUnixAddr(net, raddr); err != nil {
goto Error
}
var ra *UnixAddr
if ra, err = ResolveUnixAddr(net, raddr); err != nil {
goto Error
}
if laddr != "" {
if la, err = ResolveUnixAddr(net, laddr); err != nil {
goto Error
}
}
c, err = DialUnix(net, la, ra)
c, err = DialUnix(net, nil, ra)
if err != nil {
return nil, err
}
return c, nil
case "ip", "ip4", "ip6":
var la, ra *IPAddr
if laddr != "" {
if la, err = ResolveIPAddr(laddr); err != nil {
goto Error
}
var ra *IPAddr
if ra, err = ResolveIPAddr(raddr); err != nil {
goto Error
}
if raddr != "" {
if ra, err = ResolveIPAddr(raddr); err != nil {
goto Error
}
}
c, err := DialIP(net, la, ra)
c, err := DialIP(net, nil, ra)
if err != nil {
return nil, err
}

13
libgo/go/net/dialgoogle_test.go
View File

@ -32,7 +32,7 @@ func fetchGoogle(t *testing.T, fd Conn, network, addr string) {
}
func doDial(t *testing.T, network, addr string) {
fd, err := Dial(network, "", addr)
fd, err := Dial(network, addr)
if err != nil {
t.Errorf("Dial(%q, %q, %q) = _, %v", network, "", addr, err)
return
@ -55,6 +55,13 @@ var googleaddrs = []string{
"[2001:4860:0:2001::68]:80", // ipv6.google.com; removed if ipv6 flag not set
}
func TestLookupCNAME(t *testing.T) {
cname, err := LookupCNAME("www.google.com")
if cname != "www.l.google.com." || err != nil {
t.Errorf(`LookupCNAME("www.google.com.") = %q, %v, want "www.l.google.com.", nil`, cname, err)
}
}
func TestDialGoogle(t *testing.T) {
// If no ipv6 tunnel, don't try the last address.
if !*ipv6 {
@ -64,14 +71,14 @@ func TestDialGoogle(t *testing.T) {
// Insert an actual IP address for google.com
// into the table.
_, addrs, err := LookupHost("www.google.com")
addrs, err := LookupIP("www.google.com")
if err != nil {
t.Fatalf("lookup www.google.com: %v", err)
}
if len(addrs) == 0 {
t.Fatalf("no addresses for www.google.com")
}
ip := ParseIP(addrs[0]).To4()
ip := addrs[0].To4()
for i, s := range googleaddrs {
if strings.Contains(s, "%") {

80
libgo/go/net/dnsclient.go
View File

@ -159,7 +159,7 @@ func tryOneName(cfg *dnsConfig, name string, qtype uint16) (cname string, addrs
// all the cfg.servers[i] are IP addresses, which
// Dial will use without a DNS lookup.
server := cfg.servers[i] + ":53"
c, cerr := Dial("udp", "", server)
c, cerr := Dial("udp", server)
if cerr != nil {
err = cerr
continue
@ -178,12 +178,23 @@ func tryOneName(cfg *dnsConfig, name string, qtype uint16) (cname string, addrs
return
}
func convertRR_A(records []dnsRR) []string {
addrs := make([]string, len(records))
func convertRR_A(records []dnsRR) []IP {
addrs := make([]IP, len(records))
for i := 0; i < len(records); i++ {
rr := records[i]
a := rr.(*dnsRR_A).A
addrs[i] = IPv4(byte(a>>24), byte(a>>16), byte(a>>8), byte(a)).String()
addrs[i] = IPv4(byte(a>>24), byte(a>>16), byte(a>>8), byte(a))
}
return addrs
}
func convertRR_AAAA(records []dnsRR) []IP {
addrs := make([]IP, len(records))
for i := 0; i < len(records); i++ {
rr := records[i]
a := make(IP, 16)
copy(a, rr.(*dnsRR_AAAA).AAAA[:])
addrs[i] = a
}
return addrs
}
@ -294,10 +305,8 @@ func lookup(name string, qtype uint16) (cname string, addrs []dnsRR, err os.Erro
return
}
// LookupHost looks for name using the local hosts file and DNS resolver.
// It returns the canonical name for the host and an array of that
// host's addresses.
func LookupHost(name string) (cname string, addrs []string, err os.Error) {
// goLookupHost is the native Go implementation of LookupHost.
func goLookupHost(name string) (addrs []string, err os.Error) {
onceLoadConfig.Do(loadConfig)
if dnserr != nil || cfg == nil {
err = dnserr
@ -306,18 +315,69 @@ func LookupHost(name string) (cname string, addrs []string, err os.Error) {
// Use entries from /etc/hosts if they match.
addrs = lookupStaticHost(name)
if len(addrs) > 0 {
cname = name
return
}
ips, err := goLookupIP(name)
if err != nil {
return
}
addrs = make([]string, 0, len(ips))
for _, ip := range ips {
addrs = append(addrs, ip.String())
}
return
}
// goLookupIP is the native Go implementation of LookupIP.
func goLookupIP(name string) (addrs []IP, err os.Error) {
onceLoadConfig.Do(loadConfig)
if dnserr != nil || cfg == nil {
err = dnserr
return
}
var records []dnsRR
var cname string
cname, records, err = lookup(name, dnsTypeA)
if err != nil {
return
}
addrs = convertRR_A(records)
if cname != "" {
name = cname
}
_, records, err = lookup(name, dnsTypeAAAA)
if err != nil && len(addrs) > 0 {
// Ignore error because A lookup succeeded.
err = nil
}
if err != nil {
return
}
addrs = append(addrs, convertRR_AAAA(records)...)
return
}
// LookupCNAME returns the canonical DNS host for the given name.
// Callers that do not care about the canonical name can call
// LookupHost or LookupIP directly; both take care of resolving
// the canonical name as part of the lookup.
func LookupCNAME(name string) (cname string, err os.Error) {
onceLoadConfig.Do(loadConfig)
if dnserr != nil || cfg == nil {
err = dnserr
return
}
_, rr, err := lookup(name, dnsTypeCNAME)
if err != nil {
return
}
if len(rr) >= 0 {
cname = rr[0].(*dnsRR_CNAME).Cname
}
return
}
// An SRV represents a single DNS SRV record.
type SRV struct {
Target string
Port uint16
@ -344,11 +404,13 @@ func LookupSRV(service, proto, name string) (cname string, addrs []*SRV, err os.
return
}
// An MX represents a single DNS MX record.
type MX struct {
Host string
Pref uint16
}
// LookupMX returns the DNS MX records associated with name.
func LookupMX(name string) (entries []*MX, err os.Error) {
var records []dnsRR
_, records, err = lookup(name, dnsTypeMX)

42
libgo/go/net/dnsmsg.go
View File

@ -50,6 +50,7 @@ const (
dnsTypeMINFO = 14
dnsTypeMX = 15
dnsTypeTXT = 16
dnsTypeAAAA = 28
dnsTypeSRV = 33
// valid dnsQuestion.qtype only
@ -244,8 +245,18 @@ type dnsRR_A struct {
A uint32 "ipv4"
}
func (rr *dnsRR_A) Header() *dnsRR_Header { return &rr.Hdr }
func (rr *dnsRR_A) Header() *dnsRR_Header {
return &rr.Hdr
}
type dnsRR_AAAA struct {
Hdr dnsRR_Header
AAAA [16]byte "ipv6"
}
func (rr *dnsRR_AAAA) Header() *dnsRR_Header {
return &rr.Hdr
}
// Packing and unpacking.
//
@ -270,6 +281,7 @@ var rr_mk = map[int]func() dnsRR{
dnsTypeTXT: func() dnsRR { return new(dnsRR_TXT) },
dnsTypeSRV: func() dnsRR { return new(dnsRR_SRV) },
dnsTypeA: func() dnsRR { return new(dnsRR_A) },
dnsTypeAAAA: func() dnsRR { return new(dnsRR_AAAA) },
}
// Pack a domain name s into msg[off:].
@ -377,7 +389,7 @@ Loop:
// TODO(rsc): Move into generic library?
// Pack a reflect.StructValue into msg. Struct members can only be uint16, uint32, string,
// and other (often anonymous) structs.
// [n]byte, and other (often anonymous) structs.
func packStructValue(val *reflect.StructValue, msg []byte, off int) (off1 int, ok bool) {
for i := 0; i < val.NumField(); i++ {
f := val.Type().(*reflect.StructType).Field(i)
@ -410,6 +422,16 @@ func packStructValue(val *reflect.StructValue, msg []byte, off int) (off1 int, o
msg[off+3] = byte(i)
off += 4
}
case *reflect.ArrayValue:
if fv.Type().(*reflect.ArrayType).Elem().Kind() != reflect.Uint8 {
goto BadType
}
n := fv.Len()
if off+n > len(msg) {
return len(msg), false
}
reflect.Copy(reflect.NewValue(msg[off:off+n]).(*reflect.SliceValue), fv)
off += n
case *reflect.StringValue:
// There are multiple string encodings.
// The tag distinguishes ordinary strings from domain names.
@ -478,6 +500,16 @@ func unpackStructValue(val *reflect.StructValue, msg []byte, off int) (off1 int,
fv.Set(uint64(i))
off += 4
}
case *reflect.ArrayValue:
if fv.Type().(*reflect.ArrayType).Elem().Kind() != reflect.Uint8 {
goto BadType
}
n := fv.Len()
if off+n > len(msg) {
return len(msg), false
}
reflect.Copy(fv, reflect.NewValue(msg[off:off+n]).(*reflect.SliceValue))
off += n
case *reflect.StringValue:
var s string
switch f.Tag {
@ -515,7 +547,8 @@ func unpackStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
// Generic struct printer.
// Doesn't care about the string tag "domain-name",
// but does look for an "ipv4" tag on uint32 variables,
// but does look for an "ipv4" tag on uint32 variables
// and the "ipv6" tag on array variables,
// printing them as IP addresses.
func printStructValue(val *reflect.StructValue) string {
s := "{"
@ -533,6 +566,9 @@ func printStructValue(val *reflect.StructValue) string {
} else if fv, ok := fval.(*reflect.UintValue); ok && f.Tag == "ipv4" {
i := fv.Get()
s += IPv4(byte(i>>24), byte(i>>16), byte(i>>8), byte(i)).String()
} else if fv, ok := fval.(*reflect.ArrayValue); ok && f.Tag == "ipv6" {
i := fv.Interface().([]byte)
s += IP(i).String()
} else {
s += fmt.Sprint(fval.Interface())
}

38
libgo/go/net/fd.go
View File

@ -274,19 +274,25 @@ func startServer() {
pollserver = p
}
func newFD(fd, family, proto int, net string, laddr, raddr Addr) (f *netFD, err os.Error) {
func newFD(fd, family, proto int, net string) (f *netFD, err os.Error) {
onceStartServer.Do(startServer)
if e := syscall.SetNonblock(fd, true); e != 0 {
return nil, &OpError{"setnonblock", net, laddr, os.Errno(e)}
return nil, os.Errno(e)
}
f = &netFD{
sysfd: fd,
family: family,
proto: proto,
net: net,
laddr: laddr,
raddr: raddr,
}
f.cr = make(chan bool, 1)
f.cw = make(chan bool, 1)
return f, nil
}
func (fd *netFD) setAddr(laddr, raddr Addr) {
fd.laddr = laddr
fd.raddr = raddr
var ls, rs string
if laddr != nil {
ls = laddr.String()
@ -294,10 +300,23 @@ func newFD(fd, family, proto int, net string, laddr, raddr Addr) (f *netFD, err
if raddr != nil {
rs = raddr.String()
}
f.sysfile = os.NewFile(fd, net+":"+ls+"->"+rs)
f.cr = make(chan bool, 1)
f.cw = make(chan bool, 1)
return f, nil
fd.sysfile = os.NewFile(fd.sysfd, fd.net+":"+ls+"->"+rs)
}
func (fd *netFD) connect(ra syscall.Sockaddr) (err os.Error) {
e := syscall.Connect(fd.sysfd, ra)
if e == syscall.EINPROGRESS {
var errno int
pollserver.WaitWrite(fd)
e, errno = syscall.GetsockoptInt(fd.sysfd, syscall.SOL_SOCKET, syscall.SO_ERROR)
if errno != 0 {
return os.NewSyscallError("getsockopt", errno)
}
}
if e != 0 {
return os.Errno(e)
}
return nil
}
// Add a reference to this fd.
@ -593,10 +612,11 @@ func (fd *netFD) accept(toAddr func(syscall.Sockaddr) Addr) (nfd *netFD, err os.
syscall.CloseOnExec(s)
syscall.ForkLock.RUnlock()
if nfd, err = newFD(s, fd.family, fd.proto, fd.net, fd.laddr, toAddr(sa)); err != nil {
if nfd, err = newFD(s, fd.family, fd.proto, fd.net); err != nil {
syscall.Close(s)
return nil, err
}
nfd.setAddr(fd.laddr, toAddr(sa))
return nfd, nil
}

27
libgo/go/net/fd_windows.go
View File

@ -225,29 +225,40 @@ type netFD struct {
wio sync.Mutex
}
func allocFD(fd, family, proto int, net string, laddr, raddr Addr) (f *netFD) {
func allocFD(fd, family, proto int, net string) (f *netFD) {
f = &netFD{
sysfd: fd,
family: family,
proto: proto,
net: net,
laddr: laddr,
raddr: raddr,
}
runtime.SetFinalizer(f, (*netFD).Close)
return f
}
func newFD(fd, family, proto int, net string, laddr, raddr Addr) (f *netFD, err os.Error) {
func newFD(fd, family, proto int, net string) (f *netFD, err os.Error) {
if initErr != nil {
return nil, initErr
}
onceStartServer.Do(startServer)
// Associate our socket with resultsrv.iocp.
if _, e := syscall.CreateIoCompletionPort(int32(fd), resultsrv.iocp, 0, 0); e != 0 {
return nil, &OpError{"CreateIoCompletionPort", net, laddr, os.Errno(e)}
return nil, os.Errno(e)
}
return allocFD(fd, family, proto, net, laddr, raddr), nil
return allocFD(fd, family, proto, net), nil
}
func (fd *netFD) setAddr(laddr, raddr Addr) {
fd.laddr = laddr
fd.raddr = raddr
}
func (fd *netFD) connect(ra syscall.Sockaddr) (err os.Error) {
e := syscall.Connect(fd.sysfd, ra)
if e != 0 {
return os.Errno(e)
}
return nil
}
// Add a reference to this fd.
@ -497,7 +508,9 @@ func (fd *netFD) accept(toAddr func(syscall.Sockaddr) Addr) (nfd *netFD, err os.
lsa, _ := lrsa.Sockaddr()
rsa, _ := rrsa.Sockaddr()
return allocFD(s, fd.family, fd.proto, fd.net, toAddr(lsa), toAddr(rsa)), nil
nfd = allocFD(s, fd.family, fd.proto, fd.net)
nfd.setAddr(toAddr(lsa), toAddr(rsa))
return nfd, nil
}
// Not implemeted functions.

119
libgo/go/net/file.go Normal file
View File

@ -0,0 +1,119 @@
// Copyright 2011 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 net
import (
"os"
"syscall"
)
func newFileFD(f *os.File) (nfd *netFD, err os.Error) {
fd, errno := syscall.Dup(f.Fd())
if errno != 0 {
return nil, os.NewSyscallError("dup", errno)
}
proto, errno := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_TYPE)
if errno != 0 {
return nil, os.NewSyscallError("getsockopt", errno)
}
toAddr := sockaddrToTCP
sa, _ := syscall.Getsockname(fd)
switch sa.(type) {
default:
closesocket(fd)
return nil, os.EINVAL
case *syscall.SockaddrInet4:
if proto == syscall.SOCK_DGRAM {
toAddr = sockaddrToUDP
} else if proto == syscall.SOCK_RAW {
toAddr = sockaddrToIP
}
case *syscall.SockaddrInet6:
if proto == syscall.SOCK_DGRAM {
toAddr = sockaddrToUDP
} else if proto == syscall.SOCK_RAW {
toAddr = sockaddrToIP
}
case *syscall.SockaddrUnix:
toAddr = sockaddrToUnix
if proto == syscall.SOCK_DGRAM {
toAddr = sockaddrToUnixgram
} else if proto == syscall.SOCK_SEQPACKET {
toAddr = sockaddrToUnixpacket
}
}
laddr := toAddr(sa)
sa, _ = syscall.Getpeername(fd)
raddr := toAddr(sa)
if nfd, err = newFD(fd, 0, proto, laddr.Network()); err != nil {
return nil, err
}
nfd.setAddr(laddr, raddr)
return nfd, nil
}
// FileConn returns a copy of the network connection corresponding to
// the open file f. It is the caller's responsibility to close f when
// finished. Closing c does not affect f, and closing f does not
// affect c.
func FileConn(f *os.File) (c Conn, err os.Error) {
fd, err := newFileFD(f)
if err != nil {
return nil, err
}
switch fd.laddr.(type) {
case *TCPAddr:
return newTCPConn(fd), nil
case *UDPAddr:
return newUDPConn(fd), nil
case *UnixAddr:
return newUnixConn(fd), nil
case *IPAddr:
return newIPConn(fd), nil
}
fd.Close()
return nil, os.EINVAL
}
// FileListener returns a copy of the network listener corresponding
// to the open file f. It is the caller's responsibility to close l
// when finished. Closing c does not affect l, and closing l does not
// affect c.
func FileListener(f *os.File) (l Listener, err os.Error) {
fd, err := newFileFD(f)
if err != nil {
return nil, err
}
switch laddr := fd.laddr.(type) {
case *TCPAddr:
return &TCPListener{fd}, nil
case *UnixAddr:
return &UnixListener{fd, laddr.Name}, nil
}
fd.Close()
return nil, os.EINVAL
}
// FilePacketConn returns a copy of the packet network connection
// corresponding to the open file f. It is the caller's
// responsibility to close f when finished. Closing c does not affect
// f, and closing f does not affect c.
func FilePacketConn(f *os.File) (c PacketConn, err os.Error) {
fd, err := newFileFD(f)
if err != nil {
return nil, err
}
switch fd.laddr.(type) {
case *UDPAddr:
return newUDPConn(fd), nil
case *UnixAddr:
return newUnixConn(fd), nil
}
fd.Close()
return nil, os.EINVAL
}

131
libgo/go/net/file_test.go Normal file
View File

@ -0,0 +1,131 @@
// Copyright 2011 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 net
import (
"os"
"reflect"
"runtime"
"syscall"
"testing"
)
type listenerFile interface {
Listener
File() (f *os.File, err os.Error)
}
type packetConnFile interface {
PacketConn
File() (f *os.File, err os.Error)
}
type connFile interface {
Conn
File() (f *os.File, err os.Error)
}
func testFileListener(t *testing.T, net, laddr string) {
if net == "tcp" {
laddr += ":0" // any available port
}
l, err := Listen(net, laddr)
if err != nil {
t.Fatalf("Listen failed: %v", err)
}
defer l.Close()
lf := l.(listenerFile)
f, err := lf.File()
if err != nil {
t.Fatalf("File failed: %v", err)
}
c, err := FileListener(f)
if err != nil {
t.Fatalf("FileListener failed: %v", err)
}
if !reflect.DeepEqual(l.Addr(), c.Addr()) {
t.Fatalf("Addrs not equal: %#v != %#v", l.Addr(), c.Addr())
}
if err := c.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
if err := f.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
}
func TestFileListener(t *testing.T) {
if runtime.GOOS == "windows" {
return
}
testFileListener(t, "tcp", "127.0.0.1")
testFileListener(t, "tcp", "127.0.0.1")
if kernelSupportsIPv6() {
testFileListener(t, "tcp", "[::ffff:127.0.0.1]")
testFileListener(t, "tcp", "127.0.0.1")
testFileListener(t, "tcp", "[::ffff:127.0.0.1]")
}
if syscall.OS == "linux" {
testFileListener(t, "unix", "@gotest/net")
testFileListener(t, "unixpacket", "@gotest/net")
}
}
func testFilePacketConn(t *testing.T, pcf packetConnFile) {
f, err := pcf.File()
if err != nil {
t.Fatalf("File failed: %v", err)
}
c, err := FilePacketConn(f)
if err != nil {
t.Fatalf("FilePacketConn failed: %v", err)
}
if !reflect.DeepEqual(pcf.LocalAddr(), c.LocalAddr()) {
t.Fatalf("LocalAddrs not equal: %#v != %#v", pcf.LocalAddr(), c.LocalAddr())
}
if err := c.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
if err := f.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
}
func testFilePacketConnListen(t *testing.T, net, laddr string) {
l, err := ListenPacket(net, laddr)
if err != nil {
t.Fatalf("Listen failed: %v", err)
}
testFilePacketConn(t, l.(packetConnFile))
if err := l.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
}
func testFilePacketConnDial(t *testing.T, net, raddr string) {
c, err := Dial(net, raddr)
if err != nil {
t.Fatalf("Dial failed: %v", err)
}
testFilePacketConn(t, c.(packetConnFile))
if err := c.Close(); err != nil {
t.Fatalf("Close failed: %v", err)
}
}
func TestFilePacketConn(t *testing.T) {
if runtime.GOOS == "windows" {
return
}
testFilePacketConnListen(t, "udp", "127.0.0.1:0")
testFilePacketConnDial(t, "udp", "127.0.0.1:12345")
if kernelSupportsIPv6() {
testFilePacketConnListen(t, "udp", "[::1]:0")
testFilePacketConnDial(t, "udp", "[::ffff:127.0.0.1]:12345")
}
if syscall.OS == "linux" {
testFilePacketConnListen(t, "unixgram", "@gotest1/net")
}
}

25
libgo/go/net/file_windows.go Normal file
View File

@ -0,0 +1,25 @@
// Copyright 2011 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 net
import (
"os"
"syscall"
)
func FileConn(f *os.File) (c Conn, err os.Error) {
// TODO: Implement this
return nil, os.NewSyscallError("FileConn", syscall.EWINDOWS)
}
func FileListener(f *os.File) (l Listener, err os.Error) {
// TODO: Implement this
return nil, os.NewSyscallError("FileListener", syscall.EWINDOWS)
}
func FilePacketConn(f *os.File) (c PacketConn, err os.Error) {
// TODO: Implement this
return nil, os.NewSyscallError("FilePacketConn", syscall.EWINDOWS)
}

1
libgo/go/net/hosts_test.go
View File

@ -13,7 +13,6 @@ type hostTest struct {
ips []IP
}
var hosttests = []hostTest{
{"odin", []IP{
IPv4(127, 0, 0, 2),

53
libgo/go/net/ip.go
View File

@ -474,13 +474,13 @@ func parseIPv6(s string) IP {
return p
}
// A SyntaxError represents a malformed text string and the type of string that was expected.
type SyntaxError struct {
// A ParseError represents a malformed text string and the type of string that was expected.
type ParseError struct {
Type string
Text string
}
func (e *SyntaxError) String() string {
func (e *ParseError) String() string {
return "invalid " + e.Type + ": " + e.Text
}
@ -507,33 +507,46 @@ func ParseIP(s string) IP {
}
// ParseCIDR parses s as a CIDR notation IP address and mask,
// like "192.168.100.1/24" or "2001:DB8::/48".
// like "192.168.100.1/24", "2001:DB8::/48", as defined in
// RFC 4632 and RFC 4291.
func ParseCIDR(s string) (ip IP, mask IPMask, err os.Error) {
i := byteIndex(s, '/')
if i < 0 {
return nil, nil, &SyntaxError{"CIDR address", s}
return nil, nil, &ParseError{"CIDR address", s}
}
ipstr, maskstr := s[:i], s[i+1:]
ip = ParseIP(ipstr)
iplen := 4
ip = parseIPv4(ipstr)
if ip == nil {
iplen = 16
ip = parseIPv6(ipstr)
}
nn, i, ok := dtoi(maskstr, 0)
if ip == nil || !ok || i != len(maskstr) || nn < 0 || nn > 8*len(ip) {
return nil, nil, &SyntaxError{"CIDR address", s}
if ip == nil || !ok || i != len(maskstr) || nn < 0 || nn > 8*iplen {
return nil, nil, &ParseError{"CIDR address", s}
}
n := uint(nn)
if len(ip) == 4 {
if iplen == 4 {
v4mask := ^uint32(0xffffffff >> n)
mask = IPMask(IPv4(byte(v4mask>>24), byte(v4mask>>16), byte(v4mask>>8), byte(v4mask)))
return ip, mask, nil
}
mask = make(IPMask, 16)
for i := 0; i < 16; i++ {
if n >= 8 {
mask[i] = 0xff
n -= 8
continue
mask = IPv4Mask(byte(v4mask>>24), byte(v4mask>>16), byte(v4mask>>8), byte(v4mask))
} else {
mask = make(IPMask, 16)
for i := 0; i < 16; i++ {
if n >= 8 {
mask[i] = 0xff
n -= 8
continue
}
mask[i] = ^byte(0xff >> n)
n = 0
}
}
// address must not have any bits not in mask
for i := range ip {
if ip[i]&^mask[i] != 0 {
return nil, nil, &ParseError{"CIDR address", s}
}
mask[i] = ^byte(0xff >> n)
n = 0
}
return ip, mask, nil
}

90
libgo/go/net/ip_test.go
View File

@ -5,30 +5,26 @@
package net
import (
"bytes"
"reflect"
"testing"
"os"
)
func isEqual(a, b IP) bool {
func isEqual(a, b []byte) bool {
if a == nil && b == nil {
return true
}
if a == nil || b == nil || len(a) != len(b) {
if a == nil || b == nil {
return false
}
for i := 0; i < len(a); i++ {
if a[i] != b[i] {
return false
}
}
return true
return bytes.Equal(a, b)
}
type parseIPTest struct {
var parseiptests = []struct {
in string
out IP
}
var parseiptests = []parseIPTest{
}{
{"127.0.1.2", IPv4(127, 0, 1, 2)},
{"127.0.0.1", IPv4(127, 0, 0, 1)},
{"127.0.0.256", nil},
@ -43,20 +39,17 @@ var parseiptests = []parseIPTest{
}
func TestParseIP(t *testing.T) {
for i := 0; i < len(parseiptests); i++ {
tt := parseiptests[i]
for _, tt := range parseiptests {
if out := ParseIP(tt.in); !isEqual(out, tt.out) {
t.Errorf("ParseIP(%#q) = %v, want %v", tt.in, out, tt.out)
}
}
}
type ipStringTest struct {
var ipstringtests = []struct {
in IP
out string
}
var ipstringtests = []ipStringTest{
}{
// cf. RFC 5952 (A Recommendation for IPv6 Address Text Representation)
{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0,
0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1},
@ -85,10 +78,67 @@ var ipstringtests = []ipStringTest{
}
func TestIPString(t *testing.T) {
for i := 0; i < len(ipstringtests); i++ {
tt := ipstringtests[i]
for _, tt := range ipstringtests {
if out := tt.in.String(); out != tt.out {
t.Errorf("IP.String(%v) = %#q, want %#q", tt.in, out, tt.out)
}
}
}
var parsecidrtests = []struct {
in string
ip IP
mask IPMask
err os.Error
}{
{"135.104.0.0/32", IPv4(135, 104, 0, 0), IPv4Mask(255, 255, 255, 255), nil},
{"0.0.0.0/24", IPv4(0, 0, 0, 0), IPv4Mask(255, 255, 255, 0), nil},
{"135.104.0.0/24", IPv4(135, 104, 0, 0), IPv4Mask(255, 255, 255, 0), nil},
{"135.104.0.1/32", IPv4(135, 104, 0, 1), IPv4Mask(255, 255, 255, 255), nil},
{"135.104.0.1/24", nil, nil, &ParseError{"CIDR address", "135.104.0.1/24"}},
{"::1/128", ParseIP("::1"), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")), nil},
{"abcd:2345::/127", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe")), nil},
{"abcd:2345::/65", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff:8000::")), nil},
{"abcd:2345::/64", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff::")), nil},
{"abcd:2345::/63", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:fffe::")), nil},
{"abcd:2345::/33", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:8000::")), nil},
{"abcd:2345::/32", ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff::")), nil},
{"abcd:2344::/31", ParseIP("abcd:2344::"), IPMask(ParseIP("ffff:fffe::")), nil},
{"abcd:2300::/24", ParseIP("abcd:2300::"), IPMask(ParseIP("ffff:ff00::")), nil},
{"abcd:2345::/24", nil, nil, &ParseError{"CIDR address", "abcd:2345::/24"}},
{"2001:DB8::/48", ParseIP("2001:DB8::"), IPMask(ParseIP("ffff:ffff:ffff::")), nil},
}
func TestParseCIDR(t *testing.T) {
for _, tt := range parsecidrtests {
if ip, mask, err := ParseCIDR(tt.in); !isEqual(ip, tt.ip) || !isEqual(mask, tt.mask) || !reflect.DeepEqual(err, tt.err) {
t.Errorf("ParseCIDR(%q) = %v, %v, %v; want %v, %v, %v", tt.in, ip, mask, err, tt.ip, tt.mask, tt.err)
}
}
}
var splitjointests = []struct {
Host string
Port string
Join string
}{
{"www.google.com", "80", "www.google.com:80"},
{"127.0.0.1", "1234", "127.0.0.1:1234"},
{"::1", "80", "[::1]:80"},
}
func TestSplitHostPort(t *testing.T) {
for _, tt := range splitjointests {
if host, port, err := SplitHostPort(tt.Join); host != tt.Host || port != tt.Port || err != nil {
t.Errorf("SplitHostPort(%q) = %q, %q, %v; want %q, %q, nil", tt.Join, host, port, err, tt.Host, tt.Port)
}
}
}
func TestJoinHostPort(t *testing.T) {
for _, tt := range splitjointests {
if join := JoinHostPort(tt.Host, tt.Port); join != tt.Join {
t.Errorf("JoinHostPort(%q, %q) = %q; want %q", tt.Host, tt.Port, join, tt.Join)
}
}
}

2
libgo/go/net/iprawsock.go
View File

@ -240,7 +240,7 @@ func hostToIP(host string) (ip IP, err os.Error) {
addr = ParseIP(host)
if addr == nil {
// Not an IP address. Try as a DNS name.
_, addrs, err1 := LookupHost(host)
addrs, err1 := LookupHost(host)
if err1 != nil {
err = err1
goto Error

17
libgo/go/net/ipsock.go
View File

@ -170,9 +170,10 @@ func ipToSockaddr(family int, ip IP, port int) (syscall.Sockaddr, os.Error) {
return nil, InvalidAddrError("unexpected socket family")
}
// Split "host:port" into "host" and "port".
// Host cannot contain colons unless it is bracketed.
func splitHostPort(hostport string) (host, port string, err os.Error) {
// SplitHostPort splits a network address of the form
// "host:port" or "[host]:port" into host and port.
// The latter form must be used when host contains a colon.
func SplitHostPort(hostport string) (host, port string, err os.Error) {
// The port starts after the last colon.
i := last(hostport, ':')
if i < 0 {
@ -195,9 +196,9 @@ func splitHostPort(hostport string) (host, port string, err os.Error) {
return
}
// Join "host" and "port" into "host:port".
// If host contains colons, will join into "[host]:port".
func joinHostPort(host, port string) string {
// JoinHostPort combines host and port into a network address
// of the form "host:port" or, if host contains a colon, "[host]:port".
func JoinHostPort(host, port string) string {
// If host has colons, have to bracket it.
if byteIndex(host, ':') >= 0 {
return "[" + host + "]:" + port
@ -207,7 +208,7 @@ func joinHostPort(host, port string) string {
// Convert "host:port" into IP address and port.
func hostPortToIP(net, hostport string) (ip IP, iport int, err os.Error) {
host, port, err := splitHostPort(hostport)
host, port, err := SplitHostPort(hostport)
if err != nil {
goto Error
}
@ -218,7 +219,7 @@ func hostPortToIP(net, hostport string) (ip IP, iport int, err os.Error) {
addr = ParseIP(host)
if addr == nil {
// Not an IP address. Try as a DNS name.
_, addrs, err1 := LookupHost(host)
addrs, err1 := LookupHost(host)
if err1 != nil {
err = err1
goto Error

38
libgo/go/net/lookup.go Normal file
View File

@ -0,0 +1,38 @@
// Copyright 2011 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 net
import (
"os"
)
// LookupHost looks up the given host using the local resolver.
// It returns an array of that host's addresses.
func LookupHost(host string) (addrs []string, err os.Error) {
addrs, err, ok := cgoLookupHost(host)
if !ok {
addrs, err = goLookupHost(host)
}
return
}
// LookupIP looks up host using the local resolver.
// It returns an array of that host's IPv4 and IPv6 addresses.
func LookupIP(host string) (addrs []IP, err os.Error) {
addrs, err, ok := cgoLookupIP(host)
if !ok {
addrs, err = goLookupIP(host)
}
return
}
// LookupPort looks up the port for the given network and service.
func LookupPort(network, service string) (port int, err os.Error) {
port, err, ok := cgoLookupPort(network, service)
if !ok {
port, err = goLookupPort(network, service)
}
return
}

25
libgo/go/net/net_test.go
View File

@ -15,50 +15,49 @@ var runErrorTest = flag.Bool("run_error_test", false, "let TestDialError check f
type DialErrorTest struct {
Net string
Laddr string
Raddr string
Pattern string
}
var dialErrorTests = []DialErrorTest{
{
"datakit", "", "mh/astro/r70",
"datakit", "mh/astro/r70",
"dial datakit mh/astro/r70: unknown network datakit",
},
{
"tcp", "", "127.0.0.1:☺",
"tcp", "127.0.0.1:☺",
"dial tcp 127.0.0.1:☺: unknown port tcp/☺",
},
{
"tcp", "", "no-such-name.google.com.:80",
"tcp", "no-such-name.google.com.:80",
"dial tcp no-such-name.google.com.:80: lookup no-such-name.google.com.( on .*)?: no (.*)",
},
{
"tcp", "", "no-such-name.no-such-top-level-domain.:80",
"tcp", "no-such-name.no-such-top-level-domain.:80",
"dial tcp no-such-name.no-such-top-level-domain.:80: lookup no-such-name.no-such-top-level-domain.( on .*)?: no (.*)",
},
{
"tcp", "", "no-such-name:80",
"tcp", "no-such-name:80",
`dial tcp no-such-name:80: lookup no-such-name\.(.*\.)?( on .*)?: no (.*)`,
},
{
"tcp", "", "mh/astro/r70:http",
"tcp", "mh/astro/r70:http",
"dial tcp mh/astro/r70:http: lookup mh/astro/r70: invalid domain name",
},
{
"unix", "", "/etc/file-not-found",
"unix", "/etc/file-not-found",
"dial unix /etc/file-not-found: [nN]o such file or directory",
},
{
"unix", "", "/etc/",
"dial unix /etc/: ([pP]ermission denied|[sS]ocket operation on non-socket|[cC]onnection refused)",
"unix", "/etc/",
"dial unix /etc/: ([pP]ermission denied|socket operation on non-socket|connection refused)",
},
{
"unixpacket", "", "/etc/file-not-found",
"unixpacket", "/etc/file-not-found",
"dial unixpacket /etc/file-not-found: no such file or directory",
},
{
"unixpacket", "", "/etc/",
"unixpacket", "/etc/",
"dial unixpacket /etc/: (permission denied|socket operation on non-socket|connection refused)",
},
}
@ -69,7 +68,7 @@ func TestDialError(t *testing.T) {
return
}
for i, tt := range dialErrorTests {
c, e := Dial(tt.Net, tt.Laddr, tt.Raddr)
c, e := Dial(tt.Net, tt.Raddr)
if c != nil {
c.Close()
}

4
libgo/go/net/port.go
View File

@ -50,8 +50,8 @@ func readServices() {
file.close()
}
// LookupPort looks up the port for the given network and service.
func LookupPort(network, service string) (port int, err os.Error) {
// goLookupPort is the native Go implementation of LookupPort.
func goLookupPort(network, service string) (port int, err os.Error) {
onceReadServices.Do(readServices)
switch network {

10
libgo/go/net/server_test.go
View File

@ -54,13 +54,15 @@ func runServe(t *testing.T, network, addr string, listening chan<- string, done
}
func connect(t *testing.T, network, addr string, isEmpty bool) {
var laddr string
var fd Conn
var err os.Error
if network == "unixgram" {
laddr = addr + ".local"
fd, err = DialUnix(network, &UnixAddr{addr + ".local", network}, &UnixAddr{addr, network})
} else {
fd, err = Dial(network, addr)
}
fd, err := Dial(network, laddr, addr)
if err != nil {
t.Fatalf("net.Dial(%q, %q, %q) = _, %v", network, laddr, addr, err)
t.Fatalf("net.Dial(%q, %q) = _, %v", network, addr, err)
}
fd.SetReadTimeout(1e9) // 1s

25
libgo/go/net/sock.go
View File

@ -52,14 +52,16 @@ func socket(net string, f, p, t int, la, ra syscall.Sockaddr, toAddr func(syscal
}
}
if fd, err = newFD(s, f, p, net); err != nil {
closesocket(s)
return nil, err
}
if ra != nil {
e = syscall.Connect(s, ra)
for e == syscall.EINTR {
e = syscall.Connect(s, ra)
}
if e != 0 {
if err = fd.connect(ra); err != nil {
fd.sysfd = -1
closesocket(s)
return nil, os.Errno(e)
return nil, err
}
}
@ -68,12 +70,7 @@ func socket(net string, f, p, t int, la, ra syscall.Sockaddr, toAddr func(syscal
sa, _ = syscall.Getpeername(s)
raddr := toAddr(sa)
fd, err = newFD(s, f, p, net, laddr, raddr)
if err != nil {
closesocket(s)
return nil, err
}
fd.setAddr(laddr, raddr)
return fd, nil
}
@ -170,9 +167,9 @@ func (e *UnknownSocketError) String() string {
func sockaddrToString(sa syscall.Sockaddr) (name string, err os.Error) {
switch a := sa.(type) {
case *syscall.SockaddrInet4:
return joinHostPort(IP(a.Addr[0:]).String(), itoa(a.Port)), nil
return JoinHostPort(IP(a.Addr[0:]).String(), itoa(a.Port)), nil
case *syscall.SockaddrInet6:
return joinHostPort(IP(a.Addr[0:]).String(), itoa(a.Port)), nil
return JoinHostPort(IP(a.Addr[0:]).String(), itoa(a.Port)), nil
case *syscall.SockaddrUnix:
return a.Name, nil
}

7
libgo/go/net/tcpsock.go
View File

@ -34,7 +34,7 @@ func (a *TCPAddr) String() string {
if a == nil {
return "<nil>"
}
return joinHostPort(a.IP.String(), itoa(a.Port))
return JoinHostPort(a.IP.String(), itoa(a.Port))
}
func (a *TCPAddr) family() int {
@ -213,8 +213,9 @@ func (c *TCPConn) SetNoDelay(noDelay bool) os.Error {
// Closing c does not affect f, and closing f does not affect c.
func (c *TCPConn) File() (f *os.File, err os.Error) { return c.fd.dup() }
// DialTCP is like Dial but can only connect to TCP networks
// and returns a TCPConn structure.
// DialTCP connects to the remote address raddr on the network net,
// which must be "tcp", "tcp4", or "tcp6". If laddr is not nil, it is used
// as the local address for the connection.
func DialTCP(net string, laddr, raddr *TCPAddr) (c *TCPConn, err os.Error) {
if raddr == nil {
return nil, &OpError{"dial", "tcp", nil, errMissingAddress}

2
libgo/go/net/textproto/textproto.go
View File

@ -78,7 +78,7 @@ func (c *Conn) Close() os.Error {
// Dial connects to the given address on the given network using net.Dial
// and then returns a new Conn for the connection.
func Dial(network, addr string) (*Conn, os.Error) {
c, err := net.Dial(network, "", addr)
c, err := net.Dial(network, addr)
if err != nil {
return nil, err
}

2
libgo/go/net/timeout_test.go
View File

@ -11,7 +11,7 @@ import (
)
func testTimeout(t *testing.T, network, addr string, readFrom bool) {
fd, err := Dial(network, "", addr)
fd, err := Dial(network, addr)
if err != nil {
t.Errorf("dial %s %s failed: %v", network, addr, err)
return

2
libgo/go/net/udpsock.go
View File

@ -34,7 +34,7 @@ func (a *UDPAddr) String() string {
if a == nil {
return "<nil>"
}
return joinHostPort(a.IP.String(), itoa(a.Port))
return JoinHostPort(a.IP.String(), itoa(a.Port))
}
func (a *UDPAddr) family() int {

2
libgo/go/netchan/import.go
View File

@ -48,7 +48,7 @@ func NewImporter(conn io.ReadWriter) *Importer {
// Import imports a set of channels from the given network and address.
func Import(network, remoteaddr string) (*Importer, os.Error) {
conn, err := net.Dial(network, "", remoteaddr)
conn, err := net.Dial(network, remoteaddr)
if err != nil {
return nil, err
}

2
libgo/go/netchan/netchan_test.go
View File

@ -399,7 +399,7 @@ func TestImportFlowControl(t *testing.T) {
func testFlow(sendDone chan bool, ch <-chan int, N int, t *testing.T) {
go func() {
time.Sleep(1e9)
time.Sleep(0.5e9)
sendDone <- false
}()

18
libgo/go/os/file_unix.go
View File

@ -108,3 +108,21 @@ func Truncate(name string, size int64) Error {
}
return nil
}
// basename removes trailing slashes and the leading directory name from path name
func basename(name string) string {
i := len(name) - 1
// Remove trailing slashes
for ; i > 0 && name[i] == '/'; i-- {
name = name[:i]
}
// Remove leading directory name
for i--; i >= 0; i-- {
if name[i] == '/' {
name = name[i+1:]
break
}
}
return name
}

4
libgo/go/rpc/client.go
View File

@ -208,7 +208,7 @@ func DialHTTP(network, address string) (*Client, os.Error) {
// at the specified network address and path.
func DialHTTPPath(network, address, path string) (*Client, os.Error) {
var err os.Error
conn, err := net.Dial(network, "", address)
conn, err := net.Dial(network, address)
if err != nil {
return nil, err
}
@ -229,7 +229,7 @@ func DialHTTPPath(network, address, path string) (*Client, os.Error) {
// Dial connects to an RPC server at the specified network address.
func Dial(network, address string) (*Client, os.Error) {
conn, err := net.Dial(network, "", address)
conn, err := net.Dial(network, address)
if err != nil {
return nil, err
}

2
libgo/go/rpc/jsonrpc/client.go
View File

@ -116,7 +116,7 @@ func NewClient(conn io.ReadWriteCloser) *rpc.Client {
// Dial connects to a JSON-RPC server at the specified network address.
func Dial(network, address string) (*rpc.Client, os.Error) {
conn, err := net.Dial(network, "", address)
conn, err := net.Dial(network, address)
if err != nil {
return nil, err
}

10
libgo/go/runtime/pprof/pprof_test.go
View File

@ -15,7 +15,15 @@ import (
)
func TestCPUProfile(t *testing.T) {
if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
switch runtime.GOOS {
case "darwin":
// see Apple Bug Report #9177434 (copied into change description)
return
case "plan9":
// unimplemented
return
case "windows":
// unimplemented
return
}

2
libgo/go/smtp/smtp.go
View File

@ -39,7 +39,7 @@ type Client struct {
// Dial returns a new Client connected to an SMTP server at addr.
func Dial(addr string) (*Client, os.Error) {
conn, err := net.Dial("tcp", "", addr)
conn, err := net.Dial("tcp", addr)
if err != nil {
return nil, err
}

9
libgo/go/sort/sort_test.go
View File

@ -74,7 +74,11 @@ func TestSortStrings(t *testing.T) {
}
func TestSortLarge_Random(t *testing.T) {
data := make([]int, 1000000)
n := 1000000
if testing.Short() {
n /= 100
}
data := make([]int, n)
for i := 0; i < len(data); i++ {
data[i] = rand.Intn(100)
}
@ -174,6 +178,9 @@ func lg(n int) int {
func TestBentleyMcIlroy(t *testing.T) {
sizes := []int{100, 1023, 1024, 1025}
if testing.Short() {
sizes = []int{100, 127, 128, 129}
}
dists := []string{"sawtooth", "rand", "stagger", "plateau", "shuffle"}
modes := []string{"copy", "reverse", "reverse1", "reverse2", "sort", "dither"}
var tmp1, tmp2 [1025]int

35
libgo/go/strings/strings.go
View File

@ -275,20 +275,10 @@ func Join(a []string, sep string) string {
}
b := make([]byte, n)
bp := 0
for i := 0; i < len(a); i++ {
s := a[i]
for j := 0; j < len(s); j++ {
b[bp] = s[j]
bp++
}
if i+1 < len(a) {
s = sep
for j := 0; j < len(s); j++ {
b[bp] = s[j]
bp++
}
}
bp := copy(b, a[0])
for _, s := range a[1:] {
bp += copy(b[bp:], sep)
bp += copy(b[bp:], s)
}
return string(b)
}
@ -312,9 +302,19 @@ func Map(mapping func(rune int) int, s string) string {
// fine. It could also shrink but that falls out naturally.
maxbytes := len(s) // length of b
nbytes := 0 // number of bytes encoded in b
b := make([]byte, maxbytes)
for _, c := range s {
// The output buffer b is initialized on demand, the first
// time a character differs.
var b []byte
for i, c := range s {
rune := mapping(c)
if b == nil {
if rune == c {
continue
}
b = make([]byte, maxbytes)
nbytes = copy(b, s[:i])
}
if rune >= 0 {
wid := 1
if rune >= utf8.RuneSelf {
@ -330,6 +330,9 @@ func Map(mapping func(rune int) int, s string) string {
nbytes += utf8.EncodeRune(b[nbytes:maxbytes], rune)
}
}
if b == nil {
return s
}
return string(b[0:nbytes])
}

32
libgo/go/strings/strings_test.go
View File

@ -6,10 +6,12 @@ package strings_test
import (
"os"
"reflect"
"strconv"
. "strings"
"testing"
"unicode"
"unsafe"
"utf8"
)
@ -429,12 +431,32 @@ func TestMap(t *testing.T) {
if m != expect {
t.Errorf("drop: expected %q got %q", expect, m)
}
// 6. Identity
identity := func(rune int) int {
return rune
}
orig := "Input string that we expect not to be copied."
m = Map(identity, orig)
if (*reflect.StringHeader)(unsafe.Pointer(&orig)).Data !=
(*reflect.StringHeader)(unsafe.Pointer(&m)).Data {
t.Error("unexpected copy during identity map")
}
}
func TestToUpper(t *testing.T) { runStringTests(t, ToUpper, "ToUpper", upperTests) }
func TestToLower(t *testing.T) { runStringTests(t, ToLower, "ToLower", lowerTests) }
func BenchmarkMapNoChanges(b *testing.B) {
identity := func(rune int) int {
return rune
}
for i := 0; i < b.N; i++ {
Map(identity, "Some string that won't be modified.")
}
}
func TestSpecialCase(t *testing.T) {
lower := "abcçdefgğhıijklmnoöprsştuüvyz"
upper := "ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZ"
@ -617,7 +639,11 @@ func equal(m string, s1, s2 string, t *testing.T) bool {
func TestCaseConsistency(t *testing.T) {
// Make a string of all the runes.
a := make([]int, unicode.MaxRune+1)
numRunes := unicode.MaxRune + 1
if testing.Short() {
numRunes = 1000
}
a := make([]int, numRunes)
for i := range a {
a[i] = i
}
@ -627,10 +653,10 @@ func TestCaseConsistency(t *testing.T) {
lower := ToLower(s)
// Consistency checks
if n := utf8.RuneCountInString(upper); n != unicode.MaxRune+1 {
if n := utf8.RuneCountInString(upper); n != numRunes {
t.Error("rune count wrong in upper:", n)
}
if n := utf8.RuneCountInString(lower); n != unicode.MaxRune+1 {
if n := utf8.RuneCountInString(lower); n != numRunes {
t.Error("rune count wrong in lower:", n)
}
if !equal("ToUpper(upper)", ToUpper(upper), upper, t) {

Some files were not shown because too many files have changed in this diff Show More