mirror of
https://github.com/golang/go
synced 2024-11-22 18:14:42 -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
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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var c = make(chan int);
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func check(a []int) {
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for i := 0; i < len(a); i++ {
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n := <-c;
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if n != a[i] {
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panicln("want", a[i], "got", n, "at", i);
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}
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}
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}
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func f() {
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var i, j int;
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i = 1;
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j = 2;
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f := func() {
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c <- i;
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i = 4;
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g := func() {
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c <- i;
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c <- j;
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};
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g();
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c <- i;
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};
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j = 5;
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f();
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}
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// Accumulator generator
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func accum(n int) (func(int) int) {
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return func(i int) int {
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n += i;
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return n;
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}
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}
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func g(a, b func(int) int) {
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c <- a(2);
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c <- b(3);
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c <- a(4);
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c <- b(5);
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}
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func h() {
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var x8 byte = 100;
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var x64 int64 = 200;
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c <- int(x8);
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c <- int(x64);
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f := func(z int) {
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g := func() {
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c <- int(x8);
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c <- int(x64);
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c <- z;
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};
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g();
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c <- int(x8);
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c <- int(x64);
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c <- int(z);
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};
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x8 = 101;
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x64 = 201;
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f(500);
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}
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func newfunc() (func(int) int) {
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return func(x int) int { return x }
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}
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func main() {
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go f();
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check([]int{1,4,5,4});
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a := accum(0);
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b := accum(1);
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go g(a, b);
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check([]int{2,4,6,9});
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go h();
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check([]int{100,200,101,201,500,101,201,500});
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x, y := newfunc(), newfunc();
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if x == y {
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panicln("newfunc returned same func");
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}
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if x(1) != 1 || y(2) != 2 {
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panicln("newfunc returned broken funcs");
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}
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}
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