/usr/share/go-1.7/test/ddd1.go is in golang-1.7-src 1.7.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | // errorcheck
// Copyright 2010 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.
// Verify that illegal uses of ... are detected.
// Does not compile.
package main
import "unsafe"
func sum(args ...int) int { return 0 }
var (
_ = sum(1, 2, 3)
_ = sum()
_ = sum(1.0, 2.0)
_ = sum(1.5) // ERROR "integer"
_ = sum("hello") // ERROR ".hello. .type string. as type int|incompatible"
_ = sum([]int{1}) // ERROR "\[\]int literal.*as type int|incompatible"
)
func sum3(int, int, int) int { return 0 }
func tuple() (int, int, int) { return 1, 2, 3 }
var (
_ = sum(tuple())
_ = sum(tuple()...) // ERROR "multiple-value|[.][.][.]"
_ = sum3(tuple())
_ = sum3(tuple()...) // ERROR "multiple-value|[.][.][.]" "not enough"
)
type T []T
func funny(args ...T) int { return 0 }
var (
_ = funny(nil)
_ = funny(nil, nil)
_ = funny([]T{}) // ok because []T{} is a T; passes []T{[]T{}}
)
func bad(args ...int) {
print(1, 2, args...) // ERROR "[.][.][.]"
println(args...) // ERROR "[.][.][.]"
ch := make(chan int)
close(ch...) // ERROR "[.][.][.]"
_ = len(args...) // ERROR "[.][.][.]"
_ = new(int...) // ERROR "[.][.][.]"
n := 10
_ = make([]byte, n...) // ERROR "[.][.][.]"
// TODO(rsc): enable after gofmt bug is fixed
// _ = make([]byte, 10 ...) // error "[.][.][.]"
var x int
_ = unsafe.Pointer(&x...) // ERROR "[.][.][.]"
_ = unsafe.Sizeof(x...) // ERROR "[.][.][.]"
_ = [...]byte("foo") // ERROR "[.][.][.]"
_ = [...][...]int{{1,2,3},{4,5,6}} // ERROR "[.][.][.]"
}
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