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riscv-gcc-1
Commit 94bf1a5f by Ian Lance Taylor
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Update Go library to r60.3 release. 

From-SVN: r180327
parent 89b925a6
Showing with 156 additions and 823 deletions
gcc/testsuite/go.test/test/interface/fake.go
......@@ -12,20 +12,20 @@ package main
import "reflect"
type T struct {
f float32
g float32
F float32
G float32
s string
t string
S string
T string
u uint32
v uint32
U uint32
V uint32
w uint32
x uint32
W uint32
X uint32
y uint32
z uint32
Y uint32
Z uint32
}
func add(s, t string) string {
......@@ -40,16 +40,16 @@ func assert(b bool) {
func main() {
var x T
x.f = 1.0
x.g = x.f
x.s = add("abc", "def")
x.t = add("abc", "def")
x.u = 1
x.v = 2
x.w = 1 << 28
x.x = 2 << 28
x.y = 0x12345678
x.z = x.y
x.F = 1.0
x.G = x.F
x.S = add("abc", "def")
x.T = add("abc", "def")
x.U = 1
x.V = 2
x.W = 1 << 28
x.X = 2 << 28
x.Y = 0x12345678
x.Z = x.Y
// check mem and string
v := reflect.ValueOf(x)
......
libgo/MERGE
fd30c132d1bd
c1702f36df03
The first line of this file holds the Mercurial revision number of the
last merge done from the master library sources.
libgo/Makefile.am
......@@ -242,7 +242,6 @@ toolexeclibgoencoding_DATA = \
toolexeclibgoexpdir = $(toolexeclibgodir)/exp
toolexeclibgoexp_DATA = \
exp/datafmt.gox \
exp/gui.gox \
exp/norm.gox \
exp/regexp.gox
......@@ -1196,9 +1195,6 @@ go_encoding_hex_files = \
go_encoding_pem_files = \
go/encoding/pem/pem.go
go_exp_datafmt_files = \
go/exp/datafmt/datafmt.go \
go/exp/datafmt/parser.go
go_exp_gui_files = \
go/exp/gui/gui.go
go_exp_norm_files = \
......@@ -1666,7 +1662,6 @@ libgo_go_objs = \
encoding/git85.lo \
encoding/hex.lo \
encoding/pem.lo \
exp/datafmt.lo \
exp/gui.lo \
exp/norm.lo \
exp/regexp.lo \
......@@ -2592,15 +2587,6 @@ encoding/pem/check: $(CHECK_DEPS)
@$(CHECK)
.PHONY: encoding/pem/check
exp/datafmt.lo: $(go_exp_datafmt_files) bytes.gox fmt.gox go/scanner.gox \
go/token.gox io.gox os.gox reflect.gox runtime.gox \
strconv.gox strings.gox
$(BUILDPACKAGE)
exp/datafmt/check: $(CHECK_DEPS)
@$(MKDIR_P) exp/datafmt
@$(CHECK)
.PHONY: exp/datafmt/check
exp/gui.lo: $(go_exp_gui_files) image.gox image/draw.gox os.gox
$(BUILDPACKAGE)
exp/gui/check: $(CHECK_DEPS)
......@@ -3234,8 +3220,6 @@ encoding/hex.gox: encoding/hex.lo
encoding/pem.gox: encoding/pem.lo
$(BUILDGOX)
exp/datafmt.gox: exp/datafmt.lo
$(BUILDGOX)
exp/gui.gox: exp/gui.lo
$(BUILDGOX)
exp/norm.gox: exp/norm.lo
......@@ -3461,7 +3445,6 @@ TEST_PACKAGES = \
encoding/git85/check \
encoding/hex/check \
encoding/pem/check \
exp/datafmt/check \
exp/norm/check \
exp/regexp/check \
exp/regexp/syntax/check \
......
libgo/Makefile.in
......@@ -159,17 +159,16 @@ am__DEPENDENCIES_2 = asn1/asn1.lo big/big.lo bufio/bufio.lo \
crypto/x509/pkix.lo debug/dwarf.lo debug/elf.lo debug/gosym.lo \
debug/macho.lo debug/pe.lo encoding/ascii85.lo \
encoding/base32.lo encoding/base64.lo encoding/binary.lo \
encoding/git85.lo encoding/hex.lo encoding/pem.lo \
exp/datafmt.lo exp/gui.lo exp/norm.lo exp/regexp.lo \
exp/gui/x11.lo exp/regexp/syntax.lo exp/template/html.lo \
go/ast.lo go/build.lo go/doc.lo go/parser.lo go/printer.lo \
go/scanner.lo go/token.lo go/typechecker.lo go/types.lo \
hash/adler32.lo hash/crc32.lo hash/crc64.lo hash/fnv.lo \
http/cgi.lo http/fcgi.lo http/httptest.lo http/pprof.lo \
http/spdy.lo image/bmp.lo image/draw.lo image/gif.lo \
image/jpeg.lo image/png.lo image/tiff.lo image/ycbcr.lo \
index/suffixarray.lo io/ioutil.lo mime/multipart.lo \
net/dict.lo net/textproto.lo old/template.lo \
encoding/git85.lo encoding/hex.lo encoding/pem.lo exp/gui.lo \
exp/norm.lo exp/regexp.lo exp/gui/x11.lo exp/regexp/syntax.lo \
exp/template/html.lo go/ast.lo go/build.lo go/doc.lo \
go/parser.lo go/printer.lo go/scanner.lo go/token.lo \
go/typechecker.lo go/types.lo hash/adler32.lo hash/crc32.lo \
hash/crc64.lo hash/fnv.lo http/cgi.lo http/fcgi.lo \
http/httptest.lo http/pprof.lo http/spdy.lo image/bmp.lo \
image/draw.lo image/gif.lo image/jpeg.lo image/png.lo \
image/tiff.lo image/ycbcr.lo index/suffixarray.lo io/ioutil.lo \
mime/multipart.lo net/dict.lo net/textproto.lo old/template.lo \
$(am__DEPENDENCIES_1) os/user.lo os/signal.lo path/filepath.lo \
rpc/jsonrpc.lo runtime/debug.lo runtime/pprof.lo \
sync/atomic.lo sync/atomic_c.lo syscalls/syscall.lo \
......@@ -698,7 +697,6 @@ toolexeclibgoencoding_DATA = \
toolexeclibgoexpdir = $(toolexeclibgodir)/exp
toolexeclibgoexp_DATA = \
exp/datafmt.gox \
exp/gui.gox \
exp/norm.gox \
exp/regexp.gox
......@@ -1567,10 +1565,6 @@ go_encoding_hex_files = \
go_encoding_pem_files = \
go/encoding/pem/pem.go
go_exp_datafmt_files = \
go/exp/datafmt/datafmt.go \
go/exp/datafmt/parser.go
go_exp_gui_files = \
go/exp/gui/gui.go
......@@ -1990,7 +1984,6 @@ libgo_go_objs = \
encoding/git85.lo \
encoding/hex.lo \
encoding/pem.lo \
exp/datafmt.lo \
exp/gui.lo \
exp/norm.lo \
exp/regexp.lo \
......@@ -2242,7 +2235,6 @@ TEST_PACKAGES = \
encoding/git85/check \
encoding/hex/check \
encoding/pem/check \
exp/datafmt/check \
exp/norm/check \
exp/regexp/check \
exp/regexp/syntax/check \
......@@ -5171,15 +5163,6 @@ encoding/pem/check: $(CHECK_DEPS)
@$(CHECK)
.PHONY: encoding/pem/check
exp/datafmt.lo: $(go_exp_datafmt_files) bytes.gox fmt.gox go/scanner.gox \
go/token.gox io.gox os.gox reflect.gox runtime.gox \
strconv.gox strings.gox
$(BUILDPACKAGE)
exp/datafmt/check: $(CHECK_DEPS)
@$(MKDIR_P) exp/datafmt
@$(CHECK)
.PHONY: exp/datafmt/check
exp/gui.lo: $(go_exp_gui_files) image.gox image/draw.gox os.gox
$(BUILDPACKAGE)
exp/gui/check: $(CHECK_DEPS)
......@@ -5808,8 +5791,6 @@ encoding/hex.gox: encoding/hex.lo
encoding/pem.gox: encoding/pem.lo
$(BUILDGOX)
exp/datafmt.gox: exp/datafmt.lo
$(BUILDGOX)
exp/gui.gox: exp/gui.lo
$(BUILDGOX)
exp/norm.gox: exp/norm.lo
......
libgo/go/exp/datafmt/datafmt_test.go deleted 100644 → 0
// Copyright 2009 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 datafmt
import (
"fmt"
"testing"
"go/token"
)
var fset = token.NewFileSet()
func parse(t *testing.T, form string, fmap FormatterMap) Format {
f, err := Parse(fset, "", []byte(form), fmap)
if err != nil {
t.Errorf("Parse(%s): %v", form, err)
return nil
}
return f
}
func verify(t *testing.T, f Format, expected string, args ...interface{}) {
if f == nil {
return // allow other tests to run
}
result := f.Sprint(args...)
if result != expected {
t.Errorf(
"result : `%s`\nexpected: `%s`\n\n",
result, expected)
}
}
func formatter(s *State, value interface{}, rule_name string) bool {
switch rule_name {
case "/":
fmt.Fprintf(s, "%d %d %d", s.Pos().Line, s.LinePos().Column, s.Pos().Column)
return true
case "blank":
s.Write([]byte{' '})
return true
case "int":
if value.(int)&1 == 0 {
fmt.Fprint(s, "even ")
} else {
fmt.Fprint(s, "odd ")
}
return true
case "nil":
return false
case "testing.T":
s.Write([]byte("testing.T"))
return true
}
panic("unreachable")
return false
}
func TestCustomFormatters(t *testing.T) {
fmap0 := FormatterMap{"/": formatter}
fmap1 := FormatterMap{"int": formatter, "blank": formatter, "nil": formatter}
fmap2 := FormatterMap{"testing.T": formatter}
f := parse(t, `int=`, fmap0)
verify(t, f, ``, 1, 2, 3)
f = parse(t, `int="#"`, nil)
verify(t, f, `###`, 1, 2, 3)
f = parse(t, `int="#";string="%s"`, fmap0)
verify(t, f, "#1 0 1#1 0 7#1 0 13\n2 0 0foo2 0 8\n", 1, 2, 3, "\n", "foo", "\n")
f = parse(t, ``, fmap1)
verify(t, f, `even odd even odd `, 0, 1, 2, 3)
f = parse(t, `/ =@:blank; float64="#"`, fmap1)
verify(t, f, `# # #`, 0.0, 1.0, 2.0)
f = parse(t, `float64=@:nil`, fmap1)
verify(t, f, ``, 0.0, 1.0, 2.0)
f = parse(t, `testing "testing"; ptr=*`, fmap2)
verify(t, f, `testing.T`, t)
// TODO needs more tests
}
// ----------------------------------------------------------------------------
// Formatting of basic and simple composite types
func check(t *testing.T, form, expected string, args ...interface{}) {
f := parse(t, form, nil)
if f == nil {
return // allow other tests to run
}
result := f.Sprint(args...)
if result != expected {
t.Errorf(
"format : %s\nresult : `%s`\nexpected: `%s`\n\n",
form, result, expected)
}
}
func TestBasicTypes(t *testing.T) {
check(t, ``, ``)
check(t, `bool=":%v"`, `:true:false`, true, false)
check(t, `int="%b %d %o 0x%x"`, `101010 42 52 0x2a`, 42)
check(t, `int="%"`, `%`, 42)
check(t, `int="%%"`, `%`, 42)
check(t, `int="**%%**"`, `**%**`, 42)
check(t, `int="%%%%%%"`, `%%%`, 42)
check(t, `int="%%%d%%"`, `%42%`, 42)
const i = -42
const is = `-42`
check(t, `int ="%d"`, is, i)
check(t, `int8 ="%d"`, is, int8(i))
check(t, `int16="%d"`, is, int16(i))
check(t, `int32="%d"`, is, int32(i))
check(t, `int64="%d"`, is, int64(i))
const u = 42
const us = `42`
check(t, `uint ="%d"`, us, uint(u))
check(t, `uint8 ="%d"`, us, uint8(u))
check(t, `uint16="%d"`, us, uint16(u))
check(t, `uint32="%d"`, us, uint32(u))
check(t, `uint64="%d"`, us, uint64(u))
const f = 3.141592
const fs = `3.141592`
check(t, `float64="%g"`, fs, f)
check(t, `float32="%g"`, fs, float32(f))
check(t, `float64="%g"`, fs, float64(f))
}
func TestArrayTypes(t *testing.T) {
var a0 [10]int
check(t, `array="array";`, `array`, a0)
a1 := [...]int{1, 2, 3}
check(t, `array="array";`, `array`, a1)
check(t, `array={*}; int="%d";`, `123`, a1)
check(t, `array={* / ", "}; int="%d";`, `1, 2, 3`, a1)
check(t, `array={* / *}; int="%d";`, `12233`, a1)
a2 := []interface{}{42, "foo", 3.14}
check(t, `array={* / ", "}; interface=*; string="bar"; default="%v";`, `42, bar, 3.14`, a2)
}
func TestChanTypes(t *testing.T) {
var c0 chan int
check(t, `chan="chan"`, `chan`, c0)
c1 := make(chan int)
go func() { c1 <- 42 }()
check(t, `chan="chan"`, `chan`, c1)
// check(t, `chan=*`, `42`, c1); // reflection support for chans incomplete
}
func TestFuncTypes(t *testing.T) {
var f0 func() int
check(t, `func="func"`, `func`, f0)
f1 := func() int { return 42 }
check(t, `func="func"`, `func`, f1)
// check(t, `func=*`, `42`, f1); // reflection support for funcs incomplete
}
func TestMapTypes(t *testing.T) {
var m0 map[string]int
check(t, `map="map"`, `map`, m0)
m1 := map[string]int{}
check(t, `map="map"`, `map`, m1)
// check(t, `map=*`, ``, m1); // reflection support for maps incomplete
}
func TestPointerTypes(t *testing.T) {
var p0 *int
check(t, `ptr="ptr"`, `ptr`, p0)
check(t, `ptr=*`, ``, p0)
check(t, `ptr=*|"nil"`, `nil`, p0)
x := 99991
p1 := &x
check(t, `ptr="ptr"`, `ptr`, p1)
check(t, `ptr=*; int="%d"`, `99991`, p1)
}
func TestDefaultRule(t *testing.T) {
check(t, `default="%v"`, `42foo3.14`, 42, "foo", 3.14)
check(t, `default="%v"; int="%x"`, `abcdef`, 10, 11, 12, 13, 14, 15)
check(t, `default="%v"; int="%x"`, `ab**ef`, 10, 11, "**", 14, 15)
check(t, `default="%x"; int=@:default`, `abcdef`, 10, 11, 12, 13, 14, 15)
}
func TestGlobalSeparatorRule(t *testing.T) {
check(t, `int="%d"; / ="-"`, `1-2-3-4`, 1, 2, 3, 4)
check(t, `int="%x%x"; / ="*"`, `aa*aa`, 10, 10)
}
// ----------------------------------------------------------------------------
// Formatting of a struct
type T1 struct {
a int
}
const F1 = `datafmt "datafmt";` +
`int = "%d";` +
`datafmt.T1 = "<" a ">";`
func TestStruct1(t *testing.T) { check(t, F1, "<42>", T1{42}) }
// ----------------------------------------------------------------------------
// Formatting of a struct with an optional field (ptr)
type T2 struct {
s string
p *T1
}
const F2a = F1 +
`string = "%s";` +
`ptr = *;` +
`datafmt.T2 = s ["-" p "-"];`
const F2b = F1 +
`string = "%s";` +
`ptr = *;` +
`datafmt.T2 = s ("-" p "-" | "empty");`
func TestStruct2(t *testing.T) {
check(t, F2a, "foo", T2{"foo", nil})
check(t, F2a, "bar-<17>-", T2{"bar", &T1{17}})
check(t, F2b, "fooempty", T2{"foo", nil})
}
// ----------------------------------------------------------------------------
// Formatting of a struct with a repetitive field (slice)
type T3 struct {
s string
a []int
}
const F3a = `datafmt "datafmt";` +
`default = "%v";` +
`array = *;` +
`datafmt.T3 = s {" " a a / ","};`
const F3b = `datafmt "datafmt";` +
`int = "%d";` +
`string = "%s";` +
`array = *;` +
`nil = ;` +
`empty = *:nil;` +
`datafmt.T3 = s [a:empty ": " {a / "-"}]`
func TestStruct3(t *testing.T) {
check(t, F3a, "foo", T3{"foo", nil})
check(t, F3a, "foo 00, 11, 22", T3{"foo", []int{0, 1, 2}})
check(t, F3b, "bar", T3{"bar", nil})
check(t, F3b, "bal: 2-3-5", T3{"bal", []int{2, 3, 5}})
}
// ----------------------------------------------------------------------------
// Formatting of a struct with alternative field
type T4 struct {
x *int
a []int
}
const F4a = `datafmt "datafmt";` +
`int = "%d";` +
`ptr = *;` +
`array = *;` +
`nil = ;` +
`empty = *:nil;` +
`datafmt.T4 = "<" (x:empty x | "-") ">" `
const F4b = `datafmt "datafmt";` +
`int = "%d";` +
`ptr = *;` +
`array = *;` +
`nil = ;` +
`empty = *:nil;` +
`datafmt.T4 = "<" (a:empty {a / ", "} | "-") ">" `
func TestStruct4(t *testing.T) {
x := 7
check(t, F4a, "<->", T4{nil, nil})
check(t, F4a, "<7>", T4{&x, nil})
check(t, F4b, "<->", T4{nil, nil})
check(t, F4b, "<2, 3, 7>", T4{nil, []int{2, 3, 7}})
}
// ----------------------------------------------------------------------------
// Formatting a struct (documentation example)
type Point struct {
name string
x, y int
}
const FPoint = `datafmt "datafmt";` +
`int = "%d";` +
`hexInt = "0x%x";` +
`string = "---%s---";` +
`datafmt.Point = name "{" x ", " y:hexInt "}";`
func TestStructPoint(t *testing.T) {
p := Point{"foo", 3, 15}
check(t, FPoint, "---foo---{3, 0xf}", p)
}
// ----------------------------------------------------------------------------
// Formatting a slice (documentation example)
const FSlice = `int = "%b";` +
`array = { * / ", " }`
func TestSlice(t *testing.T) { check(t, FSlice, "10, 11, 101, 111", []int{2, 3, 5, 7}) }
// TODO add more tests
libgo/go/exp/datafmt/parser.go deleted 100644 → 0
// Copyright 2009 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 datafmt
import (
"go/scanner"
"go/token"
"os"
"strconv"
"strings"
)
// ----------------------------------------------------------------------------
// Parsing
type parser struct {
scanner.ErrorVector
scanner scanner.Scanner
file *token.File
pos token.Pos // token position
tok token.Token // one token look-ahead
lit string // token literal
packs map[string]string // PackageName -> ImportPath
rules map[string]expr // RuleName -> Expression
}
func (p *parser) next() {
p.pos, p.tok, p.lit = p.scanner.Scan()
switch p.tok {
case token.CHAN, token.FUNC, token.INTERFACE, token.MAP, token.STRUCT:
// Go keywords for composite types are type names
// returned by reflect. Accept them as identifiers.
p.tok = token.IDENT // p.lit is already set correctly
}
}
func (p *parser) init(fset *token.FileSet, filename string, src []byte) {
p.ErrorVector.Reset()
p.file = fset.AddFile(filename, fset.Base(), len(src))
p.scanner.Init(p.file, src, p, scanner.AllowIllegalChars) // return '@' as token.ILLEGAL w/o error message
p.next() // initializes pos, tok, lit
p.packs = make(map[string]string)
p.rules = make(map[string]expr)
}
func (p *parser) error(pos token.Pos, msg string) {
p.Error(p.file.Position(pos), msg)
}
func (p *parser) errorExpected(pos token.Pos, msg string) {
msg = "expected " + msg
if pos == p.pos {
// the error happened at the current position;
// make the error message more specific
msg += ", found '" + p.tok.String() + "'"
if p.tok.IsLiteral() {
msg += " " + p.lit
}
}
p.error(pos, msg)
}
func (p *parser) expect(tok token.Token) token.Pos {
pos := p.pos
if p.tok != tok {
p.errorExpected(pos, "'"+tok.String()+"'")
}
p.next() // make progress in any case
return pos
}
func (p *parser) parseIdentifier() string {
name := p.lit
p.expect(token.IDENT)
return name
}
func (p *parser) parseTypeName() (string, bool) {
pos := p.pos
name, isIdent := p.parseIdentifier(), true
if p.tok == token.PERIOD {
// got a package name, lookup package
if importPath, found := p.packs[name]; found {
name = importPath
} else {
p.error(pos, "package not declared: "+name)
}
p.next()
name, isIdent = name+"."+p.parseIdentifier(), false
}
return name, isIdent
}
// Parses a rule name and returns it. If the rule name is
// a package-qualified type name, the package name is resolved.
// The 2nd result value is true iff the rule name consists of a
// single identifier only (and thus could be a package name).
//
func (p *parser) parseRuleName() (string, bool) {
name, isIdent := "", false
switch p.tok {
case token.IDENT:
name, isIdent = p.parseTypeName()
case token.DEFAULT:
name = "default"
p.next()
case token.QUO:
name = "/"
p.next()
default:
p.errorExpected(p.pos, "rule name")
p.next() // make progress in any case
}
return name, isIdent
}
func (p *parser) parseString() string {
s := ""
if p.tok == token.STRING {
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.
p.next()
return s
} else {
p.expect(token.STRING)
}
return s
}
func (p *parser) parseLiteral() literal {
s := []byte(p.parseString())
// A string literal may contain %-format specifiers. To simplify
// and speed up printing of the literal, split it into segments
// that start with "%" possibly followed by a last segment that
// starts with some other character.
var list []interface{}
i0 := 0
for i := 0; i < len(s); i++ {
if s[i] == '%' && i+1 < len(s) {
// the next segment starts with a % format
if i0 < i {
// the current segment is not empty, split it off
list = append(list, s[i0:i])
i0 = i
}
i++ // skip %; let loop skip over char after %
}
}
// the final segment may start with any character
// (it is empty iff the string is empty)
list = append(list, s[i0:])
// convert list into a literal
lit := make(literal, len(list))
for i := 0; i < len(list); i++ {
lit[i] = list[i].([]byte)
}
return lit
}
func (p *parser) parseField() expr {
var fname string
switch p.tok {
case token.ILLEGAL:
if p.lit != "@" {
return nil
}
fname = "@"
p.next()
case token.MUL:
fname = "*"
p.next()
case token.IDENT:
fname = p.parseIdentifier()
default:
return nil
}
var ruleName string
if p.tok == token.COLON {
p.next()
ruleName, _ = p.parseRuleName()
}
return &field{fname, ruleName}
}
func (p *parser) parseOperand() (x expr) {
switch p.tok {
case token.STRING:
x = p.parseLiteral()
case token.LPAREN:
p.next()
x = p.parseExpression()
if p.tok == token.SHR {
p.next()
x = &group{x, p.parseExpression()}
}
p.expect(token.RPAREN)
case token.LBRACK:
p.next()
x = &option{p.parseExpression()}
p.expect(token.RBRACK)
case token.LBRACE:
p.next()
x = p.parseExpression()
var div expr
if p.tok == token.QUO {
p.next()
div = p.parseExpression()
}
x = &repetition{x, div}
p.expect(token.RBRACE)
default:
x = p.parseField() // may be nil
}
return x
}
func (p *parser) parseSequence() expr {
var list []interface{}
for x := p.parseOperand(); x != nil; x = p.parseOperand() {
list = append(list, x)
}
// no need for a sequence if list.Len() < 2
switch len(list) {
case 0:
return nil
case 1:
return list[0].(expr)
}
// convert list into a sequence
seq := make(sequence, len(list))
for i := 0; i < len(list); i++ {
seq[i] = list[i].(expr)
}
return seq
}
func (p *parser) parseExpression() expr {
var list []interface{}
for {
x := p.parseSequence()
if x != nil {
list = append(list, x)
}
if p.tok != token.OR {
break
}
p.next()
}
// no need for an alternatives if list.Len() < 2
switch len(list) {
case 0:
return nil
case 1:
return list[0].(expr)
}
// convert list into a alternatives
alt := make(alternatives, len(list))
for i := 0; i < len(list); i++ {
alt[i] = list[i].(expr)
}
return alt
}
func (p *parser) parseFormat() {
for p.tok != token.EOF {
pos := p.pos
name, isIdent := p.parseRuleName()
switch p.tok {
case token.STRING:
// package declaration
importPath := p.parseString()
// add package declaration
if !isIdent {
p.error(pos, "illegal package name: "+name)
} else if _, found := p.packs[name]; !found {
p.packs[name] = importPath
} else {
p.error(pos, "package already declared: "+name)
}
case token.ASSIGN:
// format rule
p.next()
x := p.parseExpression()
// add rule
if _, found := p.rules[name]; !found {
p.rules[name] = x
} else {
p.error(pos, "format rule already declared: "+name)
}
default:
p.errorExpected(p.pos, "package declaration or format rule")
p.next() // make progress in any case
}
if p.tok == token.SEMICOLON {
p.next()
} else {
break
}
}
p.expect(token.EOF)
}
func remap(p *parser, name string) string {
i := strings.Index(name, ".")
if i >= 0 {
packageName, suffix := name[0:i], name[i:]
// lookup package
if importPath, found := p.packs[packageName]; found {
name = importPath + suffix
} else {
var invalidPos token.Position
p.Error(invalidPos, "package not declared: "+packageName)
}
}
return name
}
// Parse parses a set of format productions from source src. Custom
// formatters may be provided via a map of formatter functions. If
// there are no errors, the result is a Format and the error is nil.
// Otherwise the format is nil and a non-empty ErrorList is returned.
//
func Parse(fset *token.FileSet, filename string, src []byte, fmap FormatterMap) (Format, os.Error) {
// parse source
var p parser
p.init(fset, filename, src)
p.parseFormat()
// add custom formatters, if any
for name, form := range fmap {
name = remap(&p, name)
if _, found := p.rules[name]; !found {
p.rules[name] = &custom{name, form}
} else {
var invalidPos token.Position
p.Error(invalidPos, "formatter already declared: "+name)
}
}
return p.rules, p.GetError(scanner.NoMultiples)
}
libgo/go/fmt/fmt_test.go
......@@ -61,7 +61,7 @@ type I int
func (i I) String() string { return Sprintf("<%d>", int(i)) }
type B struct {
i I
I I
j int
}
......@@ -83,8 +83,8 @@ func (g G) GoString() string {
}
type S struct {
f F // a struct field that Formats
g G // a struct field that GoStrings
F F // a struct field that Formats
G G // a struct field that GoStrings
}
// A type with a String method with pointer receiver for testing %p
......@@ -332,8 +332,8 @@ var fmttests = []struct {
{"%+v", A{1, 2, "a", []int{1, 2}}, `{i:1 j:2 s:a x:[1 2]}`},
// +v on structs with Stringable items
{"%+v", B{1, 2}, `{i:<1> j:2}`},
{"%+v", C{1, B{2, 3}}, `{i:1 B:{i:<2> j:3}}`},
{"%+v", B{1, 2}, `{I:<1> j:2}`},
{"%+v", C{1, B{2, 3}}, `{i:1 B:{I:<2> j:3}}`},
// q on Stringable items
{"%s", I(23), `<23>`},
......@@ -349,7 +349,7 @@ var fmttests = []struct {
{"%#v", uint64(1<<64 - 1), "0xffffffffffffffff"},
{"%#v", 1000000000, "1000000000"},
{"%#v", map[string]int{"a": 1, "b": 2}, `map[string] int{"a":1, "b":2}`},
{"%#v", map[string]B{"a": {1, 2}, "b": {3, 4}}, `map[string] fmt_test.B{"a":fmt_test.B{i:1, j:2}, "b":fmt_test.B{i:3, j:4}}`},
{"%#v", map[string]B{"a": {1, 2}, "b": {3, 4}}, `map[string] fmt_test.B{"a":fmt_test.B{I:1, j:2}, "b":fmt_test.B{I:3, j:4}}`},
{"%#v", []string{"a", "b"}, `[]string{"a", "b"}`},
// slices with other formats
......@@ -384,11 +384,11 @@ var fmttests = []struct {
// Formatter
{"%x", F(1), "<x=F(1)>"},
{"%x", G(2), "2"},
{"%+v", S{F(4), G(5)}, "{f:<v=F(4)> g:5}"},
{"%+v", S{F(4), G(5)}, "{F:<v=F(4)> G:5}"},
// GoStringer
{"%#v", G(6), "GoString(6)"},
{"%#v", S{F(7), G(8)}, "fmt_test.S{f:<v=F(7)>, g:GoString(8)}"},
{"%#v", S{F(7), G(8)}, "fmt_test.S{F:<v=F(7)>, G:GoString(8)}"},
// %T
{"%T", (4 - 3i), "complex128"},
......
libgo/go/go/ast/print_test.go
......@@ -41,10 +41,10 @@ var tests = []struct {
4 }`},
// structs
{struct{ x, y int }{42, 991},
`0 struct { x int; y int } {
1 . x: 42
2 . y: 991
{struct{ X, Y int }{42, 991},
`0 struct { X int; Y int } {
1 . X: 42
2 . Y: 991
3 }`},
}
......
libgo/go/image/draw/draw.go
......@@ -2,10 +2,10 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package draw provides image composition functions
// in the style of the Plan 9 graphics library
// (see http://plan9.bell-labs.com/magic/man2html/2/draw)
// and the X Render extension.
// Package draw provides image composition functions.
//
// See "The Go image/draw package" for an introduction to this package:
// http://blog.golang.org/2011/09/go-imagedraw-package.html
package draw
import (
......
libgo/go/image/image.go
......@@ -3,6 +3,9 @@
// license that can be found in the LICENSE file.
// Package image implements a basic 2-D image library.
//
// See "The Go image package" for an introduction to this package:
// http://blog.golang.org/2011/09/go-image-package.html
package image
// Config holds an image's color model and dimensions.
......
libgo/go/reflect/all_test.go
......@@ -853,13 +853,13 @@ func TestIsNil(t *testing.T) {
func TestInterfaceExtraction(t *testing.T) {
var s struct {
w io.Writer
W io.Writer
}
s.w = os.Stdout
s.W = os.Stdout
v := Indirect(ValueOf(&s)).Field(0).Interface()
if v != s.w.(interface{}) {
t.Error("Interface() on interface: ", v, s.w)
if v != s.W.(interface{}) {
t.Error("Interface() on interface: ", v, s.W)
}
}
......@@ -1190,18 +1190,18 @@ type D2 struct {
}
type S0 struct {
a, b, c int
A, B, C int
D1
D2
}
type S1 struct {
b int
B int
S0
}
type S2 struct {
a int
A int
*S1
}
......@@ -1216,36 +1216,36 @@ type S1y struct {
type S3 struct {
S1x
S2
d, e int
D, E int
*S1y
}
type S4 struct {
*S4
a int
A int
}
var fieldTests = []FTest{
{struct{}{}, "", nil, 0},
{struct{}{}, "foo", nil, 0},
{S0{a: 'a'}, "a", []int{0}, 'a'},
{S0{}, "d", nil, 0},
{S1{S0: S0{a: 'a'}}, "a", []int{1, 0}, 'a'},
{S1{b: 'b'}, "b", []int{0}, 'b'},
{struct{}{}, "Foo", nil, 0},
{S0{A: 'a'}, "A", []int{0}, 'a'},
{S0{}, "D", nil, 0},
{S1{S0: S0{A: 'a'}}, "A", []int{1, 0}, 'a'},
{S1{B: 'b'}, "B", []int{0}, 'b'},
{S1{}, "S0", []int{1}, 0},
{S1{S0: S0{c: 'c'}}, "c", []int{1, 2}, 'c'},
{S2{a: 'a'}, "a", []int{0}, 'a'},
{S1{S0: S0{C: 'c'}}, "C", []int{1, 2}, 'c'},
{S2{A: 'a'}, "A", []int{0}, 'a'},
{S2{}, "S1", []int{1}, 0},
{S2{S1: &S1{b: 'b'}}, "b", []int{1, 0}, 'b'},
{S2{S1: &S1{S0: S0{c: 'c'}}}, "c", []int{1, 1, 2}, 'c'},
{S2{}, "d", nil, 0},
{S2{S1: &S1{B: 'b'}}, "B", []int{1, 0}, 'b'},
{S2{S1: &S1{S0: S0{C: 'c'}}}, "C", []int{1, 1, 2}, 'c'},
{S2{}, "D", nil, 0},
{S3{}, "S1", nil, 0},
{S3{S2: S2{a: 'a'}}, "a", []int{1, 0}, 'a'},
{S3{}, "b", nil, 0},
{S3{d: 'd'}, "d", []int{2}, 0},
{S3{e: 'e'}, "e", []int{3}, 'e'},
{S4{a: 'a'}, "a", []int{1}, 'a'},
{S4{}, "b", nil, 0},
{S3{S2: S2{A: 'a'}}, "A", []int{1, 0}, 'a'},
{S3{}, "B", nil, 0},
{S3{D: 'd'}, "D", []int{2}, 0},
{S3{E: 'e'}, "E", []int{3}, 'e'},
{S4{A: 'a'}, "A", []int{1}, 'a'},
{S4{}, "B", nil, 0},
}
func TestFieldByIndex(t *testing.T) {
......@@ -1566,3 +1566,68 @@ func TestTagGet(t *testing.T) {
}
}
}
type Private struct {
x int
y **int
}
func (p *Private) m() {
}
type Public struct {
X int
Y **int
}
func (p *Public) M() {
}
func TestUnexported(t *testing.T) {
var pub Public
v := ValueOf(&pub)
isValid(v.Elem().Field(0))
isValid(v.Elem().Field(1))
isValid(v.Elem().FieldByName("X"))
isValid(v.Elem().FieldByName("Y"))
isValid(v.Type().Method(0).Func)
isNonNil(v.Elem().Field(0).Interface())
isNonNil(v.Elem().Field(1).Interface())
isNonNil(v.Elem().FieldByName("X").Interface())
isNonNil(v.Elem().FieldByName("Y").Interface())
isNonNil(v.Type().Method(0).Func.Interface())
var priv Private
v = ValueOf(&priv)
isValid(v.Elem().Field(0))
isValid(v.Elem().Field(1))
isValid(v.Elem().FieldByName("x"))
isValid(v.Elem().FieldByName("y"))
isValid(v.Type().Method(0).Func)
shouldPanic(func() { v.Elem().Field(0).Interface() })
shouldPanic(func() { v.Elem().Field(1).Interface() })
shouldPanic(func() { v.Elem().FieldByName("x").Interface() })
shouldPanic(func() { v.Elem().FieldByName("y").Interface() })
shouldPanic(func() { v.Type().Method(0).Func.Interface() })
}
func shouldPanic(f func()) {
defer func() {
if recover() == nil {
panic("did not panic")
}
}()
f()
}
func isNonNil(x interface{}) {
if x == nil {
panic("nil interface")
}
}
func isValid(v Value) {
if !v.IsValid() {
panic("zero Value")
}
}
libgo/go/reflect/deepequal.go
......@@ -104,7 +104,7 @@ func deepValueEqual(v1, v2 Value, visited map[uintptr]*visit, depth int) (b bool
return true
default:
// Normal equality suffices
return v1.Interface() == v2.Interface()
return valueInterface(v1, false) == valueInterface(v2, false)
}
panic("Not reached")
......
libgo/go/reflect/value.go
......@@ -829,14 +829,7 @@ func (v Value) CanInterface() bool {
if iv.kind == Invalid {
panic(&ValueError{"reflect.Value.CanInterface", iv.kind})
}
// TODO(rsc): Check flagRO too. Decide what to do about asking for
// interface for a value obtained via an unexported field.
// If the field were of a known type, say chan int or *sync.Mutex,
// the caller could interfere with the data after getting the
// interface. But fmt.Print depends on being able to look.
// Now that reflect is more efficient the special cases in fmt
// might be less important.
return v.InternalMethod == 0
return v.InternalMethod == 0 && iv.flag&flagRO == 0
}
// Interface returns v's value as an interface{}.
......@@ -844,22 +837,28 @@ func (v Value) CanInterface() bool {
// (as opposed to Type.Method), Interface cannot return an
// interface value, so it panics.
func (v Value) Interface() interface{} {
return v.internal().Interface()
return valueInterface(v, true)
}
func (iv internalValue) Interface() interface{} {
func valueInterface(v Value, safe bool) interface{} {
iv := v.internal()
return iv.valueInterface(safe)
}
func (iv internalValue) valueInterface(safe bool) interface{} {
if iv.kind == 0 {
panic(&ValueError{"reflect.Value.Interface", iv.kind})
}
if iv.method {
panic("reflect.Value.Interface: cannot create interface value for method with bound receiver")
}
/*
if v.flag()&noExport != 0 {
panic("reflect.Value.Interface: cannot return value obtained from unexported struct field")
}
*/
if safe && iv.flag&flagRO != 0 {
// Do not allow access to unexported values via Interface,
// because they might be pointers that should not be
// writable or methods or function that should not be callable.
panic("reflect.Value.Interface: cannot return value obtained from unexported field or method")
}
if iv.kind == Interface {
// Special case: return the element inside the interface.
// Won't recurse further because an interface cannot contain an interface.
......@@ -1695,7 +1694,7 @@ func convertForAssignment(what string, addr unsafe.Pointer, dst Type, iv interna
if addr == nil {
addr = unsafe.Pointer(new(interface{}))
}
x := iv.Interface()
x := iv.valueInterface(false)
if dst.NumMethod() == 0 {
*(*interface{})(addr) = x
} else {
......
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