qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-21 21:24:45 -07:00
Code Releases Activity

Remove -oldprinter flag from gofmt; all code is

Browse Source 
now printed using the semicolon-free style.

Removed NoSemis flag and mechanism dealing with
optional semicolons from go/printer.

Updated all go/printer output files using the
semi-colon free style.

Changes have no formatting impact on checked in
go code under src and misc.

R=rsc, r
CC=golang-dev
https://golang.org/cl/184068
This commit is contained in:
Robert Griesemer 2010-01-11 12:58:13 -08:00
parent 00e2cda624
commit 5dee91001b
11 changed files with 656 additions and 699 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/cmd/godoc/godoc.go
View File

@ -530,7 +530,7 @@ func (p *tconv) Write(data []byte) (n int, err os.Error) {
// Write an AST-node to w; optionally html-escaped.
func writeNode(w io.Writer, node interface{}, html bool, styler printer.Styler) {
mode := printer.TabIndent | printer.UseSpaces | printer.NoSemis
mode := printer.TabIndent | printer.UseSpaces
if html {
mode |= printer.GenHTML
}

4
src/cmd/gofmt/gofmt.go
View File

@ -37,7 +37,6 @@ var (
// semicolon transition
useOldParser = flag.Bool("oldparser", false, "parse old syntax (required semicolons)")
useOldPrinter = flag.Bool("oldprinter", false, "print old syntax (required semicolons)")
)
@ -81,9 +80,6 @@ func initPrinterMode() {
if *useSpaces {
printerMode |= printer.UseSpaces
}
if !*useOldPrinter {
printerMode |= printer.NoSemis
}
}

78
src/pkg/go/printer/nodes.go
View File

@ -282,9 +282,8 @@ func (p *printer) parameters(list []*ast.Field, multiLine *bool) {
}
// Returns true if a separating semicolon is optional.
// Sets multiLine to true if the signature spans multiple lines.
func (p *printer) signature(params, result []*ast.Field, multiLine *bool) (optSemi bool) {
func (p *printer) signature(params, result []*ast.Field, multiLine *bool) {
p.parameters(params, multiLine)
if result != nil {
p.print(blank)
@ -293,7 +292,7 @@ func (p *printer) signature(params, result []*ast.Field, multiLine *bool) (optSe
// single anonymous result; no ()'s unless it's a function type
f := result[0]
if _, isFtyp := f.Type.(*ast.FuncType); !isFtyp {
optSemi = p.expr(f.Type, multiLine)
p.expr(f.Type, multiLine)
return
}
}
@ -400,9 +399,6 @@ func (p *printer) fieldList(lbrace token.Position, list []*ast.Field, rbrace tok
p.expr(&ast.StringList{f.Tag}, &ml)
extraTabs = 0
}
if p.Mode&NoSemis == 0 {
p.print(token.SEMICOLON)
}
if f.Comment != nil {
for ; extraTabs > 0; extraTabs-- {
p.print(vtab)
@ -435,9 +431,6 @@ func (p *printer) fieldList(lbrace token.Position, list []*ast.Field, rbrace tok
// embedded interface
p.expr(f.Type, &ml)
}
if p.Mode&NoSemis == 0 {
p.print(token.SEMICOLON)
}
p.lineComment(f.Comment)
}
if isIncomplete {
@ -630,9 +623,8 @@ func isBinary(expr ast.Expr) bool {
}
// Returns true if a separating semicolon is optional.
// Sets multiLine to true if the expression spans multiple lines.
func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multiLine *bool) (optSemi bool) {
func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multiLine *bool) {
p.print(expr.Pos())
switch x := expr.(type) {
@ -660,12 +652,12 @@ func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multi
// parenthesis needed
p.print(token.LPAREN)
p.print(token.MUL)
optSemi = p.expr(x.X, multiLine)
p.expr(x.X, multiLine)
p.print(token.RPAREN)
} else {
// no parenthesis needed
p.print(token.MUL)
optSemi = p.expr(x.X, multiLine)
p.expr(x.X, multiLine)
}
case *ast.UnaryExpr:
@ -743,11 +735,7 @@ func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multi
}
p.expr1(x.Fun, token.HighestPrec, depth, 0, multiLine)
p.print(x.Lparen, token.LPAREN)
mode := commaSep
if p.Mode&NoSemis != 0 {
mode |= commaTerm
}
p.exprList(x.Lparen, x.Args, depth, mode, multiLine, x.Rparen)
p.exprList(x.Lparen, x.Args, depth, commaSep|commaTerm, multiLine, x.Rparen)
p.print(x.Rparen, token.RPAREN)
case *ast.CompositeLit:
@ -778,27 +766,25 @@ func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multi
p.expr(x.Len, multiLine)
}
p.print(token.RBRACK)
optSemi = p.expr(x.Elt, multiLine)
p.expr(x.Elt, multiLine)
case *ast.StructType:
p.print(token.STRUCT)
p.fieldList(x.Lbrace, x.Fields, x.Rbrace, x.Incomplete, ctxt|structType)
optSemi = true
case *ast.FuncType:
p.print(token.FUNC)
optSemi = p.signature(x.Params, x.Results, multiLine)
p.signature(x.Params, x.Results, multiLine)
case *ast.InterfaceType:
p.print(token.INTERFACE)
p.fieldList(x.Lbrace, x.Methods, x.Rbrace, x.Incomplete, ctxt)
optSemi = true
case *ast.MapType:
p.print(token.MAP, token.LBRACK)
p.expr(x.Key, multiLine)
p.print(token.RBRACK)
optSemi = p.expr(x.Value, multiLine)
p.expr(x.Value, multiLine)
case *ast.ChanType:
switch x.Dir {
@ -810,7 +796,7 @@ func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multi
p.print(token.CHAN, token.ARROW)
}
p.print(blank)
optSemi = p.expr(x.Value, multiLine)
p.expr(x.Value, multiLine)
default:
panic("unreachable")
@ -820,16 +806,15 @@ func (p *printer) expr1(expr ast.Expr, prec1, depth int, ctxt exprContext, multi
}
func (p *printer) expr0(x ast.Expr, depth int, multiLine *bool) (optSemi bool) {
return p.expr1(x, token.LowestPrec, depth, 0, multiLine)
func (p *printer) expr0(x ast.Expr, depth int, multiLine *bool) {
p.expr1(x, token.LowestPrec, depth, 0, multiLine)
}
// Returns true if a separating semicolon is optional.
// Sets multiLine to true if the expression spans multiple lines.
func (p *printer) expr(x ast.Expr, multiLine *bool) (optSemi bool) {
func (p *printer) expr(x ast.Expr, multiLine *bool) {
const depth = 1
return p.expr1(x, token.LowestPrec, depth, 0, multiLine)
p.expr1(x, token.LowestPrec, depth, 0, multiLine)
}
@ -852,9 +837,7 @@ func (p *printer) stmtList(list []ast.Stmt, _indent int) {
// in those cases each clause is a new section
p.linebreak(s.Pos().Line, 1, maxStmtNewlines, ignore, i == 0 || _indent == 0 || multiLine)
multiLine = false
if !p.stmt(s, &multiLine) && len(list) > 1 && p.Mode&NoSemis == 0 {
p.print(token.SEMICOLON)
}
p.stmt(s, &multiLine)
}
if _indent > 0 {
p.print(unindent)
@ -933,9 +916,8 @@ func (p *printer) controlClause(isForStmt bool, init ast.Stmt, expr ast.Expr, po
}
// Returns true if a separating semicolon is optional.
// Sets multiLine to true if the statements spans multiple lines.
func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) {
p.print(stmt.Pos())
switch s := stmt.(type) {
@ -944,7 +926,6 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
case *ast.DeclStmt:
p.decl(s.Decl, inStmtList, multiLine)
optSemi = true // decl prints terminating semicolon if necessary
case *ast.EmptyStmt:
// nothing to do
@ -957,7 +938,7 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
p.expr(s.Label, multiLine)
p.print(token.COLON, vtab, indent)
p.linebreak(s.Stmt.Pos().Line, 0, 1, ignore, true)
optSemi = p.stmt(s.Stmt, multiLine)
p.stmt(s.Stmt, multiLine)
case *ast.ExprStmt:
const depth = 1
@ -1001,19 +982,17 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
case *ast.BlockStmt:
p.block(s, 1, false)
*multiLine = true
optSemi = true
case *ast.IfStmt:
p.print(token.IF)
p.controlClause(false, s.Init, s.Cond, nil)
p.block(s.Body, 1, true)
*multiLine = true
optSemi = true
if s.Else != nil {
p.print(blank, token.ELSE, blank)
switch s.Else.(type) {
case *ast.BlockStmt, *ast.IfStmt:
optSemi = p.stmt(s.Else, ignoreMultiLine)
p.stmt(s.Else, ignoreMultiLine)
default:
p.print(token.LBRACE, indent, formfeed)
p.stmt(s.Else, ignoreMultiLine)
@ -1030,14 +1009,12 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
}
p.print(s.Colon, token.COLON)
p.stmtList(s.Body, 1)
optSemi = true // "block" without {}'s
case *ast.SwitchStmt:
p.print(token.SWITCH)
p.controlClause(false, s.Init, s.Tag, nil)
p.block(s.Body, 0, true)
*multiLine = true
optSemi = true
case *ast.TypeCaseClause:
if s.Types != nil {
@ -1048,7 +1025,6 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
}
p.print(s.Colon, token.COLON)
p.stmtList(s.Body, 1)
optSemi = true // "block" without {}'s
case *ast.TypeSwitchStmt:
p.print(token.SWITCH)
@ -1062,7 +1038,6 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
p.print(blank)
p.block(s.Body, 0, true)
*multiLine = true
optSemi = true
case *ast.CommClause:
if s.Rhs != nil {
@ -1077,20 +1052,17 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
}
p.print(s.Colon, token.COLON)
p.stmtList(s.Body, 1)
optSemi = true // "block" without {}'s
case *ast.SelectStmt:
p.print(token.SELECT, blank)
p.block(s.Body, 0, false)
*multiLine = true
optSemi = true
case *ast.ForStmt:
p.print(token.FOR)
p.controlClause(true, s.Init, s.Cond, s.Post)
p.block(s.Body, 1, true)
*multiLine = true
optSemi = true
case *ast.RangeStmt:
p.print(token.FOR, blank)
@ -1104,7 +1076,6 @@ func (p *printer) stmt(stmt ast.Stmt, multiLine *bool) (optSemi bool) {
p.print(blank)
p.block(s.Body, 1, true)
*multiLine = true
optSemi = true
default:
panic("unreachable")
@ -1132,7 +1103,6 @@ const (
//
func (p *printer) spec(spec ast.Spec, n int, context declContext, multiLine *bool) {
var (
optSemi bool // true if a semicolon is optional
comment *ast.CommentGroup // a line comment, if any
extraTabs int // number of extra tabs before comment, if any
)
@ -1159,12 +1129,11 @@ func (p *printer) spec(spec ast.Spec, n int, context declContext, multiLine *boo
if n == 1 {
if s.Type != nil {
p.print(blank)
optSemi = p.expr(s.Type, multiLine)
p.expr(s.Type, multiLine)
}
if s.Values != nil {
p.print(blank, token.ASSIGN)
p.exprList(noPos, s.Values, 1, blankStart|commaSep, multiLine, noPos)
optSemi = false
}
} else {
extraTabs = 2
@ -1172,14 +1141,13 @@ func (p *printer) spec(spec ast.Spec, n int, context declContext, multiLine *boo
p.print(vtab)
}
if s.Type != nil {
optSemi = p.expr(s.Type, multiLine)
p.expr(s.Type, multiLine)
extraTabs = 1
}
if s.Values != nil {
p.print(vtab)
p.print(token.ASSIGN)
p.exprList(noPos, s.Values, 1, blankStart|commaSep, multiLine, noPos)
optSemi = false
extraTabs = 0
}
}
@ -1194,17 +1162,13 @@ func (p *printer) spec(spec ast.Spec, n int, context declContext, multiLine *boo
} else {
p.print(vtab)
}
optSemi = p.expr(s.Type, multiLine)
p.expr(s.Type, multiLine)
comment = s.Comment
default:
panic("unreachable")
}
if (context == inGroup || context == inStmtList && !optSemi) && p.Mode&NoSemis == 0 {
p.print(token.SEMICOLON)
}
if comment != nil {
for ; extraTabs > 0; extraTabs-- {
p.print(vtab)

1
src/pkg/go/printer/printer.go
View File

@ -894,7 +894,6 @@ const (
RawFormat // do not use a tabwriter; if set, UseSpaces is ignored
TabIndent // use tabs for indentation independent of UseSpaces
UseSpaces // use spaces instead of tabs for alignment
NoSemis // don't print semicolons at the end of a line
)

58
src/pkg/go/printer/testdata/comments.golden vendored
View File

@ -10,8 +10,8 @@ import "fmt" // fmt
const c0 = 0 // zero
const (
c1 = iota; // c1
c2; // c2
c1 = iota // c1
c2 // c2
)
@ -20,21 +20,21 @@ type SZ struct{}
// The S0 struct; no field is exported.
type S0 struct {
int;
x, y, z int; // 3 unexported fields
int
x, y, z int // 3 unexported fields
}
// The S1 struct; some fields are not exported.
type S1 struct {
S0;
A, B, C float; // 3 exported fields
D, b, c int; // 2 unexported fields
S0
A, B, C float // 3 exported fields
D, b, c int // 2 unexported fields
}
// The S2 struct; all fields are exported.
type S2 struct {
S1;
A, B, C float; // 3 exported fields
S1
A, B, C float // 3 exported fields
}
// The IZ interface; it is empty.
@ -42,21 +42,21 @@ type SZ interface{}
// The I0 interface; no method is exported.
type I0 interface {
f(x int) int; // unexported method
f(x int) int // unexported method
}
// The I1 interface; some methods are not exported.
type I1 interface {
I0;
F(x float) float; // exported methods
g(x int) int; // unexported method
I0
F(x float) float // exported methods
g(x int) int // unexported method
}
// The I2 interface; all methods are exported.
type I2 interface {
I0;
F(x float) float; // exported method
G(x float) float; // exported method
I0
F(x float) float // exported method
G(x float) float // exported method
}
// This comment group should be separated
@ -71,23 +71,23 @@ var ()
// This comment SHOULD be associated with the next declaration.
func f0() {
const pi = 3.14; // pi
const pi = 3.14 // pi
var s1 struct{} /* an empty struct */ /* foo */
// a struct constructor
// --------------------
var s2 struct{} = struct{}{};
x := pi;
var s2 struct{} = struct{}{}
x := pi
}
//
// NO SPACE HERE
//
func f1() {
f0();
f0()
/* 1 */
// 2
/* 3 */
/* 4 */
f0();
f0()
}
@ -100,7 +100,7 @@ func abs(x int) int {
if x < 0 { // the tab printed before this comment's // must not affect the remaining lines
return -x // this statement should be properly indented
}
return x;
return x
}
@ -283,14 +283,14 @@ func _( /* this */ x /* is */ /* an */ int) {}
// Line comments with tabs
func _() {
var finput *bufio.Reader; // input file
var stderr *bufio.Writer;
var ftable *bufio.Writer; // y.go file
var foutput *bufio.Writer; // y.output file
var finput *bufio.Reader // input file
var stderr *bufio.Writer
var ftable *bufio.Writer // y.go file
var foutput *bufio.Writer // y.output file
var oflag string; // -o [y.go] - y.go file
var vflag string; // -v [y.output] - y.output file
var lflag bool; // -l - disable line directives
var oflag string // -o [y.go] - y.go file
var vflag string // -v [y.output] - y.output file
var lflag bool // -l - disable line directives
}

20
src/pkg/go/printer/testdata/comments.x vendored
View File

@ -15,17 +15,17 @@ type S0 struct {
// The S1 struct; some fields are not exported.
type S1 struct {
S0;
A, B, C float; // 3 exported fields
D int; // 2 unexported fields
S0
A, B, C float // 3 exported fields
D int // 2 unexported fields
// contains unexported fields
}
// The S2 struct; all fields are exported.
type S2 struct {
S1;
A, B, C float; // 3 exported fields
S1
A, B, C float // 3 exported fields
}
@ -41,15 +41,15 @@ type I0 interface {
// The I1 interface; some methods are not exported.
type I1 interface {
I0;
F(x float) float; // exported methods
I0
F(x float) float // exported methods
// contains unexported methods
}
// The I2 interface; all methods are exported.
type I2 interface {
I0;
F(x float) float; // exported method
G(x float) float; // exported method
I0
F(x float) float // exported method
G(x float) float // exported method
}

354
src/pkg/go/printer/testdata/declarations.golden vendored
View File

@ -7,22 +7,22 @@ package imports
import "io"
import (
_ "io";
_ "io"
)
import _ "io"
import (
"io";
"io";
"io";
"io"
"io"
"io"
)
import (
"io";
aLongRename "io";
"io"
aLongRename "io"
b "io";
b "io"
)
// no newlines between consecutive single imports, but
@ -52,17 +52,17 @@ import (
// a comment
"bar" +
"foo" + // a comment
"bar"; // a comment
"bar" // a comment
)
// a case that caused problems in the past (comment placement)
import (
. "fmt";
"io";
"malloc"; // for the malloc count test only
"math";
"strings";
"testing";
. "fmt"
"io"
"malloc" // for the malloc count test only
"math"
"strings"
"testing"
)
@ -74,19 +74,19 @@ var _ int
func _() {
// the following decls need a semicolon at the end
type _ int;
type _ *int;
type _ []int;
type _ map[string]int;
type _ chan int;
type _ func() int;
type _ int
type _ *int
type _ []int
type _ map[string]int
type _ chan int
type _ func() int
var _ int;
var _ *int;
var _ []int;
var _ map[string]int;
var _ chan int;
var _ func() int;
var _ int
var _ *int
var _ []int
var _ map[string]int
var _ chan int
var _ func() int
// the following decls don't need a semicolon at the end
type _ struct{}
@ -121,116 +121,116 @@ func _() {
// don't lose blank lines in grouped declarations
const (
_ int = 0;
_ float = 1;
_ int = 0
_ float = 1
_ string = "foo";
_ string = "foo"
_ = iota;
_;
_ = iota
_
// a comment
_;
_
_;
_
)
type (
_ int;
_ struct{};
_ int
_ struct{}
_ interface{};
_ interface{}
// a comment
_ map[string]int;
_ map[string]int
)
var (
_ int = 0;
_ float = 1;
_ int = 0
_ float = 1
_ string = "foo";
_ string = "foo"
_ bool;
_ bool
// a comment
_ bool;
_ bool
)
// don't lose blank lines in this struct
type _ struct {
String struct {
Str, Len int;
};
Str, Len int
}
Slice struct {
Array, Len, Cap int;
};
Array, Len, Cap int
}
Eface struct {
Typ, Ptr int;
};
Typ, Ptr int
}
UncommonType struct {
Name, PkgPath int;
};
Name, PkgPath int
}
CommonType struct {
Size, Hash, Alg, Align, FieldAlign, String, UncommonType int;
};
Size, Hash, Alg, Align, FieldAlign, String, UncommonType int
}
Type struct {
Typ, Ptr int;
};
Typ, Ptr int
}
StructField struct {
Name, PkgPath, Typ, Tag, Offset int;
};
Name, PkgPath, Typ, Tag, Offset int
}
StructType struct {
Fields int;
};
Fields int
}
PtrType struct {
Elem int;
};
Elem int
}
SliceType struct {
Elem int;
};
Elem int
}
ArrayType struct {
Elem, Len int;
};
Elem, Len int
}
Stktop struct {
Stackguard, Stackbase, Gobuf int;
};
Stackguard, Stackbase, Gobuf int
}
Gobuf struct {
Sp, Pc, G int;
};
Sp, Pc, G int
}
G struct {
Stackbase, Sched, Status, Alllink int;
};
Stackbase, Sched, Status, Alllink int
}
}
// no tabs for single or ungrouped decls
func _() {
const xxxxxx = 0;
type x int;
var xxx int;
var yyyy float = 3.14;
var zzzzz = "bar";
const xxxxxx = 0
type x int
var xxx int
var yyyy float = 3.14
var zzzzz = "bar"
const (
xxxxxx = 0;
xxxxxx = 0
)
type (
x int;
x int
)
var (
xxx int;
xxx int
)
var (
yyyy float = 3.14;
yyyy float = 3.14
)
var (
zzzzz = "bar";
zzzzz = "bar"
)
}
@ -238,79 +238,79 @@ func _() {
func _() {
// no entry has a type
const (
zzzzzz = 1;
z = 2;
zzz = 3;
zzzzzz = 1
z = 2
zzz = 3
)
// some entries have a type
const (
xxxxxx = 1;
x = 2;
xxx = 3;
yyyyyyyy float = iota;
yyyy = "bar";
yyy;
yy = 2;
xxxxxx = 1
x = 2
xxx = 3
yyyyyyyy float = iota
yyyy = "bar"
yyy
yy = 2
)
}
func _() {
// no entry has a type
var (
zzzzzz = 1;
z = 2;
zzz = 3;
zzzzzz = 1
z = 2
zzz = 3
)
// no entry has a value
var (
_ int;
_ float;
_ string;
_ int
_ float
_ string
_ int; // comment
_ float; // comment
_ string; // comment
_ int // comment
_ float // comment
_ string // comment
)
// some entries have a type
var (
xxxxxx int;
x float;
xxx string;
yyyyyyyy int = 1234;
y float = 3.14;
yyyy = "bar";
yyy string = "foo";
xxxxxx int
x float
xxx string
yyyyyyyy int = 1234
y float = 3.14
yyyy = "bar"
yyy string = "foo"
)
// mixed entries - all comments should be aligned
var (
a, b, c int;
x = 10;
d int; // comment
y = 20; // comment
f, ff, fff, ffff int = 0, 1, 2, 3; // comment
a, b, c int
x = 10
d int // comment
y = 20 // comment
f, ff, fff, ffff int = 0, 1, 2, 3 // comment
)
// respect original line breaks
var _ = []T{
T{0x20, "Telugu"},
};
}
var _ = []T{
// respect original line breaks
T{0x20, "Telugu"},
};
}
}
func _() {
type (
xxxxxx int;
x float;
xxx string;
xxxxx []x;
xx struct{};
xxxxxx int
x float
xxx string
xxxxx []x
xx struct{}
xxxxxxx struct {
_, _ int;
_ float;
};
xxxx chan<- string;
_, _ int
_ float
}
xxxx chan<- string
)
}
@ -325,59 +325,59 @@ type _ struct {
}
type _ struct { // this comment must not change indentation
f int;
f, ff, fff, ffff int;
f int
f, ff, fff, ffff int
}
type _ struct {
string;
string
}
type _ struct {
string; // comment
string // comment
}
type _ struct {
string "tag";
string "tag"
}
type _ struct {
string "tag"; // comment
string "tag" // comment
}
type _ struct {
f int;
f int
}
type _ struct {
f int; // comment
f int // comment
}
type _ struct {
f int "tag";
f int "tag"
}
type _ struct {
f int "tag"; // comment
f int "tag" // comment
}
type _ struct {
bool;
a, b, c int;
int "tag";
ES; // comment
float "tag"; // comment
f int; // comment
f, ff, fff, ffff int; // comment
g float "tag";
h float "tag"; // comment
bool
a, b, c int
int "tag"
ES // comment
float "tag" // comment
f int // comment
f, ff, fff, ffff int // comment
g float "tag"
h float "tag" // comment
}
// difficult cases
type _ struct {
bool; // comment
text []byte; // comment
bool // comment
text []byte // comment
}
@ -385,41 +385,41 @@ type _ struct {
type EI interface{}
type _ interface {
EI;
EI
}
type _ interface {
f();
fffff();
f()
fffff()
}
type _ interface {
EI;
f();
fffffg();
EI
f()
fffffg()
}
type _ interface { // this comment must not change indentation
EI; // here's a comment
f(); // no blank between identifier and ()
fffff(); // no blank between identifier and ()
gggggggggggg(x, y, z int); // hurray
EI // here's a comment
f() // no blank between identifier and ()
fffff() // no blank between identifier and ()
gggggggggggg(x, y, z int) // hurray
}
// formatting of variable declarations
func _() {
type day struct {
n int;
short, long string;
n int
short, long string
}
var (
Sunday = day{0, "SUN", "Sunday"};
Monday = day{1, "MON", "Monday"};
Tuesday = day{2, "TUE", "Tuesday"};
Wednesday = day{3, "WED", "Wednesday"};
Thursday = day{4, "THU", "Thursday"};
Friday = day{5, "FRI", "Friday"};
Saturday = day{6, "SAT", "Saturday"};
Sunday = day{0, "SUN", "Sunday"}
Monday = day{1, "MON", "Monday"}
Tuesday = day{2, "TUE", "Tuesday"}
Wednesday = day{3, "WED", "Wednesday"}
Thursday = day{4, "THU", "Thursday"}
Friday = day{5, "FRI", "Friday"}
Saturday = day{6, "SAT", "Saturday"}
)
}
@ -464,14 +464,14 @@ func _() {
"print": nil,
"println": nil,
},
};
}
}
func _() {
var _ = T{
a, // must introduce trailing comma
};
}
}
@ -502,12 +502,9 @@ func _() { // opening "{" must move up
// introduce a newline and thus cause a semicolon to
// be inserted
const _ T = x // comment
;
const _ = x // comment
;
type _ T // comment
;
type _ struct // comment
{
@ -517,20 +514,18 @@ func _() { // opening "{" must move up
}
type _ * // comment
T;
T
type _ [ // comment
]T;
]T
type _ [ // comment
10]T;
10]T
type _ chan // comment
T;
T
type _ map // comment
[T]T;
[T]T
var _ T // comment
;
var _ T = x // comment
;
var _ struct // comment
{
@ -540,16 +535,15 @@ func _() { // opening "{" must move up
}
var _ * // comment
T;
T
var _ [ // comment
]T;
]T
var _ [ // comment
10]T;
10]T
var _ chan // comment
T;
T
var _ map // comment
[T]T;
[T]T
var _ = x // comment
;
}

372
src/pkg/go/printer/testdata/expressions.golden vendored
View File

@ -5,233 +5,233 @@
package expressions
type T struct {
x, y, z int;
x, y, z int
}
var (
a, b, c, d, e int;
under_bar int;
longIdentifier1, longIdentifier2, longIdentifier3 int;
t0, t1, t2 T;
s string;
p *int;
a, b, c, d, e int
under_bar int
longIdentifier1, longIdentifier2, longIdentifier3 int
t0, t1, t2 T
s string
p *int
)
func _() {
// no spaces around simple or parenthesized expressions
_ = a + b;
_ = a + b + c;
_ = a + b - c;
_ = a - b - c;
_ = a + (b * c);
_ = a + (b / c);
_ = a - (b % c);
_ = 1 + a;
_ = a + 1;
_ = a + b + 1;
_ = s[1:2];
_ = s[a:b];
_ = s[0:len(s)];
_ = s[0] << 1;
_ = (s[0] << 1) & 0xf;
_ = s[0]<<2 | s[1]>>4;
_ = "foo" + s;
_ = s + "foo";
_ = 'a' + 'b';
_ = len(s) / 2;
_ = len(t0.x) / a;
_ = a + b
_ = a + b + c
_ = a + b - c
_ = a - b - c
_ = a + (b * c)
_ = a + (b / c)
_ = a - (b % c)
_ = 1 + a
_ = a + 1
_ = a + b + 1
_ = s[1:2]
_ = s[a:b]
_ = s[0:len(s)]
_ = s[0] << 1
_ = (s[0] << 1) & 0xf
_ = s[0]<<2 | s[1]>>4
_ = "foo" + s
_ = s + "foo"
_ = 'a' + 'b'
_ = len(s) / 2
_ = len(t0.x) / a
// spaces around expressions of different precedence or expressions containing spaces
_ = a + -b;
_ = a - ^b;
_ = a / *p;
_ = a + b*c;
_ = 1 + b*c;
_ = a + 2*c;
_ = a + c*2;
_ = 1 + 2*3;
_ = s[1 : 2*3];
_ = s[a : b-c];
_ = s[0:];
_ = s[a+b];
_ = s[a+b:];
_ = a[a<<b+1];
_ = a[a<<b+1:];
_ = s[a+b : len(s)];
_ = s[len(s):-a];
_ = s[a : len(s)+1];
_ = s[a:len(s)+1] + s;
_ = a + -b
_ = a - ^b
_ = a / *p
_ = a + b*c
_ = 1 + b*c
_ = a + 2*c
_ = a + c*2
_ = 1 + 2*3
_ = s[1 : 2*3]
_ = s[a : b-c]
_ = s[0:]
_ = s[a+b]
_ = s[a+b:]
_ = a[a<<b+1]
_ = a[a<<b+1:]
_ = s[a+b : len(s)]
_ = s[len(s):-a]
_ = s[a : len(s)+1]
_ = s[a:len(s)+1] + s
// spaces around operators with equal or lower precedence than comparisons
_ = a == b;
_ = a != b;
_ = a > b;
_ = a >= b;
_ = a < b;
_ = a <= b;
_ = a < b && c > d;
_ = a < b || c > d;
_ = a == b
_ = a != b
_ = a > b
_ = a >= b
_ = a < b
_ = a <= b
_ = a < b && c > d
_ = a < b || c > d
// spaces around "long" operands
_ = a + longIdentifier1;
_ = longIdentifier1 + a;
_ = longIdentifier1 + longIdentifier2*longIdentifier3;
_ = s + "a longer string";
_ = a + longIdentifier1
_ = longIdentifier1 + a
_ = longIdentifier1 + longIdentifier2*longIdentifier3
_ = s + "a longer string"
// some selected cases
_ = a + t0.x;
_ = a + t0.x + t1.x*t2.x;
_ = a + b + c + d + e + 2*3;
_ = a + b + c + 2*3 + d + e;
_ = (a + b + c) * 2;
_ = a - b + c - d + (a + b + c) + d&e;
_ = under_bar - 1;
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666);
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx);
_ = a + t0.x
_ = a + t0.x + t1.x*t2.x
_ = a + b + c + d + e + 2*3
_ = a + b + c + 2*3 + d + e
_ = (a + b + c) * 2
_ = a - b + c - d + (a + b + c) + d&e
_ = under_bar - 1
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666)
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx)
}
func _() {
a + b;
a + b + c;
a + b*c;
a + (b * c);
(a + b) * c;
a + (b * c * d);
a + (b*c + d);
a + b
a + b + c
a + b*c
a + (b * c)
(a + b) * c
a + (b * c * d)
a + (b*c + d)
1 << x;
-1 << x;
1<<x - 1;
-1<<x - 1;
1 << x
-1 << x
1<<x - 1
-1<<x - 1
f(a + b);
f(a + b + c);
f(a + b*c);
f(a + (b * c));
f(1<<x-1, 1<<x-2);
f(a + b)
f(a + b + c)
f(a + b*c)
f(a + (b * c))
f(1<<x-1, 1<<x-2)
1<<d.logWindowSize - 1;
1<<d.logWindowSize - 1
buf = make(x, 2*cap(b.buf)+n);
buf = make(x, 2*cap(b.buf)+n)
dst[i*3+2] = dbuf[0] << 2;
dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4;
dst[i*3+2] = dbuf[0] << 2
dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4
b.buf = b.buf[0 : b.off+m+n];
b.buf = b.buf[0 : b.off+m*n];
f(b.buf[0 : b.off+m+n]);
b.buf = b.buf[0 : b.off+m+n]
b.buf = b.buf[0 : b.off+m*n]
f(b.buf[0 : b.off+m+n])
signed += ' ' * 8;
tw.octal(header[148:155], chksum);
signed += ' ' * 8
tw.octal(header[148:155], chksum)
x > 0 && i >= 0;
x > 0 && i >= 0
x1, x0 := x>>w2, x&m2;
z0 = t1<<w2 + t0;
z1 = (t1 + t0>>w2) >> w2;
q1, r1 := x1/d1, x1%d1;
r1 = r1*b2 | x0>>w2;
x1 = (x1 << z) | (x0 >> (uint(w) - z));
x1 = x1<<z | x0>>(uint(w)-z);
x1, x0 := x>>w2, x&m2
z0 = t1<<w2 + t0
z1 = (t1 + t0>>w2) >> w2
q1, r1 := x1/d1, x1%d1
r1 = r1*b2 | x0>>w2
x1 = (x1 << z) | (x0 >> (uint(w) - z))
x1 = x1<<z | x0>>(uint(w)-z)
buf[0 : len(buf)+1];
buf[0 : n+1];
buf[0 : len(buf)+1]
buf[0 : n+1]
a, b = b, a;
a = b + c;
a = b*c + d;
a*b + c;
a - b - c;
a - (b - c);
a - b*c;
a - (b * c);
a * b / c;
a / *b;
x[a|^b];
x[a / *b];
a & ^b;
a + +b;
a - -b;
x[a*-b];
x[a + +b];
x ^ y ^ z;
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF];
len(longVariableName) * 2;
a, b = b, a
a = b + c
a = b*c + d
a*b + c
a - b - c
a - (b - c)
a - b*c
a - (b * c)
a * b / c
a / *b
x[a|^b]
x[a / *b]
a & ^b
a + +b
a - -b
x[a*-b]
x[a + +b]
x ^ y ^ z
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
len(longVariableName) * 2
token(matchType + xlength<<lengthShift + xoffset);
token(matchType + xlength<<lengthShift + xoffset)
}
func _() {
_ = T{};
_ = struct{}{};
_ = [10]T{};
_ = [...]T{};
_ = []T{};
_ = map[int]T{};
_ = T{}
_ = struct{}{}
_ = [10]T{}
_ = [...]T{}
_ = []T{}
_ = map[int]T{}
_ = (T){};
_ = (struct{}){};
_ = ([10]T){};
_ = ([...]T){};
_ = ([]T){};
_ = (map[int]T){};
_ = (T){}
_ = (struct{}){}
_ = ([10]T){}
_ = ([...]T){}
_ = ([]T){}
_ = (map[int]T){}
}
// one-line structs/interfaces in composite literals (up to a threshold)
func _() {
_ = struct{}{};
_ = struct{ x int }{0};
_ = struct{ x, y, z int }{0, 1, 2};
_ = struct{ int }{0};
_ = struct{}{}
_ = struct{ x int }{0}
_ = struct{ x, y, z int }{0, 1, 2}
_ = struct{ int }{0}
_ = struct {
s struct {
int;
};
}{struct{ int }{0}}; // compositeLit context not propagated => multiLine result
int
}
}{struct{ int }{0}} // compositeLit context not propagated => multiLine result
}
func _() {
// do not modify literals
_ = "tab1 tab2 tab3 end"; // string contains 3 tabs
_ = "tab1 tab2 tab3 end"; // same string with 3 blanks - may be unaligned because editors see tabs in strings
_ = ""; // this comment should be aligned with the one on the previous line
_ = ``;
_ = "tab1 tab2 tab3 end" // string contains 3 tabs
_ = "tab1 tab2 tab3 end" // same string with 3 blanks - may be unaligned because editors see tabs in strings
_ = "" // this comment should be aligned with the one on the previous line
_ = ``
_ = `
`;
`
_ = `foo
bar`;
bar`
}
func _() {
// one-line function literals
_ = func() {};
_ = func() int { return 0 };
_ = func(x, y int) bool { return x < y };
_ = func() {}
_ = func() int { return 0 }
_ = func(x, y int) bool { return x < y }
f(func() {});
f(func() int { return 0 });
f(func(x, y int) bool { return x < y });
f(func() {})
f(func() int { return 0 })
f(func(x, y int) bool { return x < y })
}
func _() {
// do not add extra indentation to multi-line string lists
_ = "foo" + "bar";
_ = "foo" + "bar"
_ = "foo" +
"bar" +
"bah";
"bah"
_ = []string{
"abc" +
"def",
"foo" +
"bar",
};
}
}
@ -257,18 +257,18 @@ func _() {
_ = F1 +
`string = "%s";` +
`ptr = *;` +
`datafmt.T2 = s ["-" p "-"];`;
`datafmt.T2 = s ["-" p "-"];`
_ =
`datafmt "datafmt";` +
`default = "%v";` +
`array = *;` +
`datafmt.T3 = s {" " a a / ","};`;
`datafmt.T3 = s {" " a a / ","};`
_ = `datafmt "datafmt";` +
`default = "%v";` +
`array = *;` +
`datafmt.T3 = s {" " a a / ","};`;
`datafmt.T3 = s {" " a a / ","};`
}
@ -276,24 +276,24 @@ func _() {
// respect source lines in multi-line expressions
_ = a +
b +
c;
c
_ = a < b ||
b < a;
b < a
_ = "933262154439441526816992388562667004907159682643816214685929" +
"638952175999932299156089414639761565182862536979208272237582" +
"51185210916864000000000000000000000000"; // 100!
_ = "170141183460469231731687303715884105727"; // prime
"51185210916864000000000000000000000000" // 100!
_ = "170141183460469231731687303715884105727" // prime
}
// Alignment after overlong lines
const (
_ = "991";
_ = "2432902008176640000"; // 20!
_ = "991"
_ = "2432902008176640000" // 20!
_ = "933262154439441526816992388562667004907159682643816214685929" +
"638952175999932299156089414639761565182862536979208272237582" +
"51185210916864000000000000000000000000"; // 100!
_ = "170141183460469231731687303715884105727"; // prime
"51185210916864000000000000000000000000" // 100!
_ = "170141183460469231731687303715884105727" // prime
)
@ -301,11 +301,11 @@ const (
func _() {
_ = a + // comment
b + // comment
c;
c
_ = "a" + // comment
"b" + // comment
"c";
_ = "ba0408" + "7265717569726564"; // field 71, encoding 2, string "required"
"c"
_ = "ba0408" + "7265717569726564" // field 71, encoding 2, string "required"
}
@ -313,25 +313,27 @@ func _() {
func _() {
f(1,
2,
3);
3)
f(1,
2,
3);
3,
)
// TODO(gri) the cases below are not correct yet
f(1,
2,
3); // comment
3) // comment
f(1,
2,
3, // comment
)
f(1,
2,
3) // comment
f(1,
2,
3 // comment
);
f(1,
2,
3); // comment
f(1,
2,
3 // comment
);
,
)
}
@ -353,8 +355,8 @@ func (p *parser) charClass() {
// respect source lines in multi-line expressions
if cc.negate && len(cc.ranges) == 2 &&
cc.ranges[0] == '\n' && cc.ranges[1] == '\n' {
nl := new(_NotNl);
p.re.add(nl);
nl := new(_NotNl)
p.re.add(nl)
}
}

372
src/pkg/go/printer/testdata/expressions.raw vendored
View File

@ -5,233 +5,233 @@
package expressions
type T struct {
x, y, z int;
x, y, z int
}
var (
a, b, c, d, e int;
under_bar int;
longIdentifier1, longIdentifier2, longIdentifier3 int;
t0, t1, t2 T;
s string;
p *int;
a, b, c, d, e int
under_bar int
longIdentifier1, longIdentifier2, longIdentifier3 int
t0, t1, t2 T
s string
p *int
)
func _() {
// no spaces around simple or parenthesized expressions
_ = a + b;
_ = a + b + c;
_ = a + b - c;
_ = a - b - c;
_ = a + (b * c);
_ = a + (b / c);
_ = a - (b % c);
_ = 1 + a;
_ = a + 1;
_ = a + b + 1;
_ = s[1:2];
_ = s[a:b];
_ = s[0:len(s)];
_ = s[0] << 1;
_ = (s[0] << 1) & 0xf;
_ = s[0]<<2 | s[1]>>4;
_ = "foo" + s;
_ = s + "foo";
_ = 'a' + 'b';
_ = len(s) / 2;
_ = len(t0.x) / a;
_ = a + b
_ = a + b + c
_ = a + b - c
_ = a - b - c
_ = a + (b * c)
_ = a + (b / c)
_ = a - (b % c)
_ = 1 + a
_ = a + 1
_ = a + b + 1
_ = s[1:2]
_ = s[a:b]
_ = s[0:len(s)]
_ = s[0] << 1
_ = (s[0] << 1) & 0xf
_ = s[0]<<2 | s[1]>>4
_ = "foo" + s
_ = s + "foo"
_ = 'a' + 'b'
_ = len(s) / 2
_ = len(t0.x) / a
// spaces around expressions of different precedence or expressions containing spaces
_ = a + -b;
_ = a - ^b;
_ = a / *p;
_ = a + b*c;
_ = 1 + b*c;
_ = a + 2*c;
_ = a + c*2;
_ = 1 + 2*3;
_ = s[1 : 2*3];
_ = s[a : b-c];
_ = s[0:];
_ = s[a+b];
_ = s[a+b:];
_ = a[a<<b+1];
_ = a[a<<b+1:];
_ = s[a+b : len(s)];
_ = s[len(s):-a];
_ = s[a : len(s)+1];
_ = s[a:len(s)+1] + s;
_ = a + -b
_ = a - ^b
_ = a / *p
_ = a + b*c
_ = 1 + b*c
_ = a + 2*c
_ = a + c*2
_ = 1 + 2*3
_ = s[1 : 2*3]
_ = s[a : b-c]
_ = s[0:]
_ = s[a+b]
_ = s[a+b:]
_ = a[a<<b+1]
_ = a[a<<b+1:]
_ = s[a+b : len(s)]
_ = s[len(s):-a]
_ = s[a : len(s)+1]
_ = s[a:len(s)+1] + s
// spaces around operators with equal or lower precedence than comparisons
_ = a == b;
_ = a != b;
_ = a > b;
_ = a >= b;
_ = a < b;
_ = a <= b;
_ = a < b && c > d;
_ = a < b || c > d;
_ = a == b
_ = a != b
_ = a > b
_ = a >= b
_ = a < b
_ = a <= b
_ = a < b && c > d
_ = a < b || c > d
// spaces around "long" operands
_ = a + longIdentifier1;
_ = longIdentifier1 + a;
_ = longIdentifier1 + longIdentifier2*longIdentifier3;
_ = s + "a longer string";
_ = a + longIdentifier1
_ = longIdentifier1 + a
_ = longIdentifier1 + longIdentifier2*longIdentifier3
_ = s + "a longer string"
// some selected cases
_ = a + t0.x;
_ = a + t0.x + t1.x*t2.x;
_ = a + b + c + d + e + 2*3;
_ = a + b + c + 2*3 + d + e;
_ = (a + b + c) * 2;
_ = a - b + c - d + (a + b + c) + d&e;
_ = under_bar - 1;
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666);
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx);
_ = a + t0.x
_ = a + t0.x + t1.x*t2.x
_ = a + b + c + d + e + 2*3
_ = a + b + c + 2*3 + d + e
_ = (a + b + c) * 2
_ = a - b + c - d + (a + b + c) + d&e
_ = under_bar - 1
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666)
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx)
}
func _() {
a + b;
a + b + c;
a + b*c;
a + (b * c);
(a + b) * c;
a + (b * c * d);
a + (b*c + d);
a + b
a + b + c
a + b*c
a + (b * c)
(a + b) * c
a + (b * c * d)
a + (b*c + d)
1 << x;
-1 << x;
1<<x - 1;
-1<<x - 1;
1 << x
-1 << x
1<<x - 1
-1<<x - 1
f(a + b);
f(a + b + c);
f(a + b*c);
f(a + (b * c));
f(1<<x-1, 1<<x-2);
f(a + b)
f(a + b + c)
f(a + b*c)
f(a + (b * c))
f(1<<x-1, 1<<x-2)
1<<d.logWindowSize - 1;
1<<d.logWindowSize - 1
buf = make(x, 2*cap(b.buf)+n);
buf = make(x, 2*cap(b.buf)+n)
dst[i*3+2] = dbuf[0] << 2;
dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4;
dst[i*3+2] = dbuf[0] << 2
dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4
b.buf = b.buf[0 : b.off+m+n];
b.buf = b.buf[0 : b.off+m*n];
f(b.buf[0 : b.off+m+n]);
b.buf = b.buf[0 : b.off+m+n]
b.buf = b.buf[0 : b.off+m*n]
f(b.buf[0 : b.off+m+n])
signed += ' ' * 8;
tw.octal(header[148:155], chksum);
signed += ' ' * 8
tw.octal(header[148:155], chksum)
x > 0 && i >= 0;
x > 0 && i >= 0
x1, x0 := x>>w2, x&m2;
z0 = t1<<w2 + t0;
z1 = (t1 + t0>>w2) >> w2;
q1, r1 := x1/d1, x1%d1;
r1 = r1*b2 | x0>>w2;
x1 = (x1 << z) | (x0 >> (uint(w) - z));
x1 = x1<<z | x0>>(uint(w)-z);
x1, x0 := x>>w2, x&m2
z0 = t1<<w2 + t0
z1 = (t1 + t0>>w2) >> w2
q1, r1 := x1/d1, x1%d1
r1 = r1*b2 | x0>>w2
x1 = (x1 << z) | (x0 >> (uint(w) - z))
x1 = x1<<z | x0>>(uint(w)-z)
buf[0 : len(buf)+1];
buf[0 : n+1];
buf[0 : len(buf)+1]
buf[0 : n+1]
a, b = b, a;
a = b + c;
a = b*c + d;
a*b + c;
a - b - c;
a - (b - c);
a - b*c;
a - (b * c);
a * b / c;
a / *b;
x[a|^b];
x[a / *b];
a & ^b;
a + +b;
a - -b;
x[a*-b];
x[a + +b];
x ^ y ^ z;
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF];
len(longVariableName) * 2;
a, b = b, a
a = b + c
a = b*c + d
a*b + c
a - b - c
a - (b - c)
a - b*c
a - (b * c)
a * b / c
a / *b
x[a|^b]
x[a / *b]
a & ^b
a + +b
a - -b
x[a*-b]
x[a + +b]
x ^ y ^ z
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
len(longVariableName) * 2
token(matchType + xlength<<lengthShift + xoffset);
token(matchType + xlength<<lengthShift + xoffset)
}
func _() {
_ = T{};
_ = struct{}{};
_ = [10]T{};
_ = [...]T{};
_ = []T{};
_ = map[int]T{};
_ = T{}
_ = struct{}{}
_ = [10]T{}
_ = [...]T{}
_ = []T{}
_ = map[int]T{}
_ = (T){};
_ = (struct{}){};
_ = ([10]T){};
_ = ([...]T){};
_ = ([]T){};
_ = (map[int]T){};
_ = (T){}
_ = (struct{}){}
_ = ([10]T){}
_ = ([...]T){}
_ = ([]T){}
_ = (map[int]T){}
}
// one-line structs/interfaces in composite literals (up to a threshold)
func _() {
_ = struct{}{};
_ = struct{ x int }{0};
_ = struct{ x, y, z int }{0, 1, 2};
_ = struct{ int }{0};
_ = struct{}{}
_ = struct{ x int }{0}
_ = struct{ x, y, z int }{0, 1, 2}
_ = struct{ int }{0}
_ = struct {
s struct {
int;
};
}{struct{ int }{0}}; // compositeLit context not propagated => multiLine result
int
}
}{struct{ int }{0}} // compositeLit context not propagated => multiLine result
}
func _() {
// do not modify literals
_ = "tab1 tab2 tab3 end"; // string contains 3 tabs
_ = "tab1 tab2 tab3 end"; // same string with 3 blanks - may be unaligned because editors see tabs in strings
_ = ""; // this comment should be aligned with the one on the previous line
_ = ``;
_ = "tab1 tab2 tab3 end" // string contains 3 tabs
_ = "tab1 tab2 tab3 end" // same string with 3 blanks - may be unaligned because editors see tabs in strings
_ = "" // this comment should be aligned with the one on the previous line
_ = ``
_ = `
`;
`
_ = `foo
bar`;
bar`
}
func _() {
// one-line function literals
_ = func() {};
_ = func() int { return 0 };
_ = func(x, y int) bool { return x < y };
_ = func() {}
_ = func() int { return 0 }
_ = func(x, y int) bool { return x < y }
f(func() {});
f(func() int { return 0 });
f(func(x, y int) bool { return x < y });
f(func() {})
f(func() int { return 0 })
f(func(x, y int) bool { return x < y })
}
func _() {
// do not add extra indentation to multi-line string lists
_ = "foo" + "bar";
_ = "foo" + "bar"
_ = "foo" +
"bar" +
"bah";
"bah"
_ = []string{
"abc" +
"def",
"foo" +
"bar",
};
}
}
@ -257,18 +257,18 @@ func _() {
_ = F1 +
`string = "%s";` +
`ptr = *;` +
`datafmt.T2 = s ["-" p "-"];`;
`datafmt.T2 = s ["-" p "-"];`
_ =
`datafmt "datafmt";` +
`default = "%v";` +
`array = *;` +
`datafmt.T3 = s {" " a a / ","};`;
`datafmt.T3 = s {" " a a / ","};`
_ = `datafmt "datafmt";` +
`default = "%v";` +
`array = *;` +
`datafmt.T3 = s {" " a a / ","};`;
`datafmt.T3 = s {" " a a / ","};`
}
@ -276,24 +276,24 @@ func _() {
// respect source lines in multi-line expressions
_ = a +
b +
c;
c
_ = a < b ||
b < a;
b < a
_ = "933262154439441526816992388562667004907159682643816214685929" +
"638952175999932299156089414639761565182862536979208272237582" +
"51185210916864000000000000000000000000"; // 100!
_ = "170141183460469231731687303715884105727"; // prime
"51185210916864000000000000000000000000" // 100!
_ = "170141183460469231731687303715884105727" // prime
}
// Alignment after overlong lines
const (
_ = "991";
_ = "2432902008176640000"; // 20!
_ = "991"
_ = "2432902008176640000" // 20!
_ = "933262154439441526816992388562667004907159682643816214685929" +
"638952175999932299156089414639761565182862536979208272237582" +
"51185210916864000000000000000000000000"; // 100!
_ = "170141183460469231731687303715884105727"; // prime
"51185210916864000000000000000000000000" // 100!
_ = "170141183460469231731687303715884105727" // prime
)
@ -301,11 +301,11 @@ const (
func _() {
_ = a + // comment
b + // comment
c;
c
_ = "a" + // comment
"b" + // comment
"c";
_ = "ba0408" + "7265717569726564"; // field 71, encoding 2, string "required"
"c"
_ = "ba0408" + "7265717569726564" // field 71, encoding 2, string "required"
}
@ -313,25 +313,27 @@ func _() {
func _() {
f(1,
2,
3);
3)
f(1,
2,
3);
3,
)
// TODO(gri) the cases below are not correct yet
f(1,
2,
3); // comment
3) // comment
f(1,
2,
3, // comment
)
f(1,
2,
3) // comment
f(1,
2,
3 // comment
);
f(1,
2,
3); // comment
f(1,
2,
3 // comment
);
,
)
}
@ -353,8 +355,8 @@ func (p *parser) charClass() {
// respect source lines in multi-line expressions
if cc.negate && len(cc.ranges) == 2 &&
cc.ranges[0] == '\n' && cc.ranges[1] == '\n' {
nl := new(_NotNl);
p.re.add(nl);
nl := new(_NotNl)
p.re.add(nl)
}
}

52
src/pkg/go/printer/testdata/linebreaks.golden vendored
View File

@ -5,23 +5,23 @@
package linebreaks
import (
"bytes";
"fmt";
"io";
"os";
"reflect";
"strings";
"testing";
"bytes"
"fmt"
"io"
"os"
"reflect"
"strings"
"testing"
)
type writerTestEntry struct {
header *Header;
contents string;
header *Header
contents string
}
type writerTest struct {
file string; // filename of expected output
entries []*writerTestEntry;
file string // filename of expected output
entries []*writerTestEntry
}
var writerTests = []*writerTest{
@ -83,8 +83,8 @@ var writerTests = []*writerTest{
}
type untarTest struct {
file string;
headers []*Header;
file string
headers []*Header
}
var untarTests = []*untarTest{
@ -186,36 +186,36 @@ func usage() {
fmt.Fprintf(os.Stderr,
// TODO(gri): the 2nd string of this string list should not be indented
"usage: godoc package [name ...]\n"+
" godoc -http=:6060\n");
flag.PrintDefaults();
os.Exit(2);
" godoc -http=:6060\n")
flag.PrintDefaults()
os.Exit(2)
}
func TestReader(t *testing.T) {
testLoop:
for i, test := range untarTests {
f, err := os.Open(test.file, os.O_RDONLY, 0444);
f, err := os.Open(test.file, os.O_RDONLY, 0444)
if err != nil {
t.Errorf("test %d: Unexpected error: %v", i, err);
continue;
t.Errorf("test %d: Unexpected error: %v", i, err)
continue
}
tr := NewReader(f);
tr := NewReader(f)
for j, header := range test.headers {
hdr, err := tr.Next();
hdr, err := tr.Next()
if err != nil || hdr == nil {
t.Errorf("test %d, entry %d: Didn't get entry: %v", i, j, err);
f.Close();
continue testLoop;
t.Errorf("test %d, entry %d: Didn't get entry: %v", i, j, err)
f.Close()
continue testLoop
}
if !reflect.DeepEqual(hdr, header) {
t.Errorf("test %d, entry %d: Incorrect header:\nhave %+v\nwant %+v",
i, j, *hdr, *header)
}
}
hdr, err := tr.Next();
hdr, err := tr.Next()
if hdr != nil || err != nil {
t.Errorf("test %d: Unexpected entry or error: hdr=%v err=%v", i, err)
}
f.Close();
f.Close()
}
}

38
src/pkg/go/printer/testdata/statements.golden vendored
View File

@ -64,16 +64,16 @@ func _() {
switch x := 0; x {
case 1:
use(x);
use(x); // followed by an empty line
use(x)
use(x) // followed by an empty line
case 2: // followed by an empty line
use(x) // followed by an empty line
case 3: // no empty lines
use(x);
use(x);
use(x)
use(x)
}
switch x {
@ -152,20 +152,20 @@ func _() {
// line at a time.
func _() {
const _ = 0;
const _ = 0
const _ = 1;
type _ int;
type _ float;
const _ = 1
type _ int
type _ float
var _ = 0;
var x = 1;
var _ = 0
var x = 1
// Each use(x) call below should have at most one empty line before and after.
use(x);
use(x)
if x < x {
@ -206,9 +206,9 @@ L: _ = 0
func _() {
for {
L1: _ = 0;
L1: _ = 0
L2:
_ = 0;
_ = 0
}
}
@ -216,9 +216,9 @@ func _() {
func _() {
// this comment should be indented
for {
L1: _ = 0;
L1: _ = 0
L2:
_ = 0;
_ = 0
}
}
@ -227,14 +227,14 @@ func _() {
if {
_ = 0
}
_ = 0; // the indentation here should not be affected by the long label name
_ = 0 // the indentation here should not be affected by the long label name
AnOverlongLabel:
_ = 0;
_ = 0
if {
_ = 0
}
_ = 0;
_ = 0
L: _ = 0;
L: _ = 0
}