mirror of
https://github.com/golang/go
synced 2024-11-21 20:34:40 -07:00
9346c6d901
so that == on func means that the
functions originated in the same
execution of a func literal or definition.
before, there was an inconsistency:
func() {x++} != func() {x++}
but
func() {} == func() {}
this CL makes the second case != too,
just like
make(map[int]int) != make(map[int]int)
R=r
DELTA=202 (71 added, 62 deleted, 69 changed)
OCL=32393
CL=32398
101 lines
1.4 KiB
Go
101 lines
1.4 KiB
Go
// $G $D/$F.go && $L $F.$A && ./$A.out
|
|
|
|
// 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 main
|
|
|
|
var c = make(chan int);
|
|
|
|
func check(a []int) {
|
|
for i := 0; i < len(a); i++ {
|
|
n := <-c;
|
|
if n != a[i] {
|
|
panicln("want", a[i], "got", n, "at", i);
|
|
}
|
|
}
|
|
}
|
|
|
|
func f() {
|
|
var i, j int;
|
|
|
|
i = 1;
|
|
j = 2;
|
|
f := func() {
|
|
c <- i;
|
|
i = 4;
|
|
g := func() {
|
|
c <- i;
|
|
c <- j;
|
|
};
|
|
g();
|
|
c <- i;
|
|
};
|
|
j = 5;
|
|
f();
|
|
}
|
|
|
|
// Accumulator generator
|
|
func accum(n int) (func(int) int) {
|
|
return func(i int) int {
|
|
n += i;
|
|
return n;
|
|
}
|
|
}
|
|
|
|
func g(a, b func(int) int) {
|
|
c <- a(2);
|
|
c <- b(3);
|
|
c <- a(4);
|
|
c <- b(5);
|
|
}
|
|
|
|
func h() {
|
|
var x8 byte = 100;
|
|
var x64 int64 = 200;
|
|
|
|
c <- int(x8);
|
|
c <- int(x64);
|
|
f := func(z int) {
|
|
g := func() {
|
|
c <- int(x8);
|
|
c <- int(x64);
|
|
c <- z;
|
|
};
|
|
g();
|
|
c <- int(x8);
|
|
c <- int(x64);
|
|
c <- int(z);
|
|
};
|
|
x8 = 101;
|
|
x64 = 201;
|
|
f(500);
|
|
}
|
|
|
|
func newfunc() (func(int) int) {
|
|
return func(x int) int { return x }
|
|
}
|
|
|
|
|
|
func main() {
|
|
go f();
|
|
check([]int{1,4,5,4});
|
|
|
|
a := accum(0);
|
|
b := accum(1);
|
|
go g(a, b);
|
|
check([]int{2,4,6,9});
|
|
|
|
go h();
|
|
check([]int{100,200,101,201,500,101,201,500});
|
|
|
|
x, y := newfunc(), newfunc();
|
|
if x == y {
|
|
panicln("newfunc returned same func");
|
|
}
|
|
if x(1) != 1 || y(2) != 2 {
|
|
panicln("newfunc returned broken funcs");
|
|
}
|
|
}
|