src/pkg/go/printer/testdata/declarations.input

// 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 imports

import "io"

import (
	_ "io"
)

import _ "io"

import (
	"io"
	"io"
	"io"
)

import (
	"io"
	aLongRename "io"

	b "io"
)

// no newlines between consecutive single imports, but
// respect extra line breaks in the source (at most one empty line)
import _ "io"
import _ "io"
import _ "io"

import _ "os"
import _ "os"
import _ "os"


import _ "fmt"
import _ "fmt"
import _ "fmt"

import "foo"  // a comment
import "bar"  // a comment

import (
	_ "foo"
	// a comment
	"bar"
	"foo"  // 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"
)


// at least one empty line between declarations of different kind
import _ "io"
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

	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{}
	type _ *struct{}
	type _ []struct{}
	type _ map[string]struct{}
	type _ chan struct{}
	type _ func() struct{}

	type _ interface{}
	type _ *interface{}
	type _ []interface{}
	type _ map[string]interface{}
	type _ chan interface{}
	type _ func() interface{}

	var _ struct{}
	var _ *struct{}
	var _ []struct{}
	var _ map[string]struct{}
	var _ chan struct{}
	var _ func() struct{}

	var _ interface{}
	var _ *interface{}
	var _ []interface{}
	var _ map[string]interface{}
	var _ chan interface{}
	var _ func() interface{}
}


// don't lose blank lines in grouped declarations
const (
	_ int = 0
	_ float = 1

	_ string = "foo"

	_ = iota
	_
	
	// a comment
	_

	_
)


type (
	_ int
	_ struct {}
	
	_ interface{}
	
	// a comment
	_ map[string]int
)


var (
	_ int = 0
	_ float = 1

	_ string = "foo"

	_ bool
	
	// a comment
	_ bool
)


// don't lose blank lines in this struct
type _ struct {
	String struct {
		Str, Len int
	}
	Slice struct {
		Array, Len, Cap int
	}
	Eface struct {
		Typ, Ptr int
	}

	UncommonType struct {
		Name, PkgPath int
	}
	CommonType struct {
		Size, Hash, Alg, Align, FieldAlign, String, UncommonType int
	}
	Type struct {
		Typ, Ptr int
	}
	StructField struct {
		Name, PkgPath, Typ, Tag, Offset int
	}
	StructType struct {
		Fields int
	}
	PtrType struct {
		Elem int
	}
	SliceType struct {
		Elem int
	}
	ArrayType struct {
		Elem, Len int
	}

	Stktop struct {
		Stackguard, Stackbase, Gobuf int
	}
	Gobuf struct {
		Sp, Pc, G int
	}
	G struct {
		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"
	)
}

// tabs for multiple or grouped decls
func _() {
	// no entry has a type
	const (
		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
	)
}

func _() {
	// no entry has a type
	var (
		zzzzzz = 1
		z = 2
		zzz = 3
	)
	// no entry has a value
	var (
		_ int
		_ float
		_ string

		_ 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"
	)
	// 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
	)
	// 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{}
		xxxxxxx struct {
			_, _ int
			_ float
		}
		xxxx chan<- string
	)
}


// formatting of structs
type _ struct{}

type _ struct{ /* this comment should be visible */ }

type _ struct{
	// this comment should be visible and properly indented
}

type _ struct {  // this comment must not change indentation
	f int
	f, ff, fff, ffff int
}

type _ struct {
	string
}

type _ struct {
	string  // comment
}

type _ struct {
	string "tag"
}

type _ struct {
	string "tag"  // comment
}

type _ struct {
	f int
}

type _ struct {
	f int  // comment
}

type _ struct {
	f int "tag"
}

type _ struct {
	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
}


// difficult cases
type _ struct {
	bool  // comment
	text []byte  // comment
}



// formatting of interfaces
type EI interface{}

type _ interface {
	EI
}

type _ interface {
	f()
	fffff()
}

type _ interface {
	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
}

// formatting of variable declarations
func _() {
	type day struct { 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" }
	)
}


func _() {
	var Universe = Scope {
		Names: map[string]*Ident {
			// basic types
			"bool": nil,
			"byte": nil,
			"int8": nil,
			"int16": nil,
			"int32": nil,
			"int64": nil,
			"uint8": nil,
			"uint16": nil,
			"uint32": nil,
			"uint64": nil,
			"float32": nil,
			"float64": nil,
			"string": nil,

			// convenience types
			"int": nil,
			"uint": nil,
			"uintptr": nil,
			"float": nil,

			// constants
			"false": nil,
			"true": nil,
			"iota": nil,
			"nil": nil,

			// functions
			"cap": nil,
			"len": nil,
			"new": nil,
			"make": nil,
			"panic": nil,
			"panicln": nil,
			"print": nil,
			"println": nil,
		},
	}
}


func _() {
	var _ = T{
		a,	// must introduce trailing comma
	}
}


// formatting of consecutive single-line functions
func _() {}
func _() {}
func _() {}

func _() {}  // an empty line before this function
func _() {}
func _() {}

func _() {
	f(1, 2, 3)
}
func _(x int) int {
	return x+1
}
func _() int {
	type T struct{}
}


// making function declarations safe for new semicolon rules
func _() { /* one-line func */ }

func _() {
/* one-line func */ }


// ellipsis parameters
func _(...)
func _(...int)
func _(...*int)
func _(...[]int)
func _(...struct{})
func _(bool, ...interface{})
func _(bool, ...func())
func _(bool, ...func(...))
func _(bool, ...map[string]int)
func _(bool, ...chan int)

func _(b bool, x ...)
func _(b bool, x ...int)
func _(b bool, x ...*int)
func _(b bool, x ...[]int)
func _(b bool, x ...struct{})
func _(x ...interface{})
func _(x ...func())
func _(x ...func(...))
func _(x ...map[string]int)
func _(x ...chan int)