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https://github.com/golang/go
synced 2024-11-13 17:30:24 -07:00
fc0dc04095
Very few of the compiler regression tests include a comment saying waht they do. Many are obvious, some are anything but. I've started with a-c in the top directory. More will follow once we agree on the approach, correctness, and thoroughness here. zerodivide.go sneaked in too. R=rsc, r CC=golang-dev https://golang.org/cl/5656100
120 lines
1.9 KiB
Go
120 lines
1.9 KiB
Go
// run
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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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// Test the internal "algorithms" for objects larger than a word: hashing, equality etc.
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package main
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type T struct {
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a float64
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b int64
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c string
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d byte
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}
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var a = []int{ 1, 2, 3 }
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var NIL []int
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func arraycmptest() {
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if NIL != nil {
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println("fail1:", NIL, "!= nil")
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}
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if nil != NIL {
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println("fail2: nil !=", NIL)
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}
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if a == nil || nil == a {
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println("fail3:", a, "== nil")
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}
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}
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func SameArray(a, b []int) bool {
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if len(a) != len(b) || cap(a) != cap(b) {
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return false
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}
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if len(a) > 0 && &a[0] != &b[0] {
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return false
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}
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return true
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}
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var t = T{1.5, 123, "hello", 255}
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var mt = make(map[int]T)
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var ma = make(map[int][]int)
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func maptest() {
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mt[0] = t
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t1 := mt[0]
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if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {
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println("fail: map val struct", t1.a, t1.b, t1.c, t1.d)
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}
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ma[1] = a
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a1 := ma[1]
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if !SameArray(a, a1) {
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println("fail: map val array", a, a1)
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}
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}
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var ct = make(chan T)
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var ca = make(chan []int)
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func send() {
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ct <- t
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ca <- a
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}
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func chantest() {
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go send()
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t1 := <-ct
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if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {
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println("fail: map val struct", t1.a, t1.b, t1.c, t1.d)
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}
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a1 := <-ca
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if !SameArray(a, a1) {
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println("fail: map val array", a, a1)
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}
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}
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type E struct { }
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var e E
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func interfacetest() {
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var i interface{}
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i = a
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a1 := i.([]int)
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if !SameArray(a, a1) {
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println("interface <-> []int", a, a1)
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}
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pa := new([]int)
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*pa = a
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i = pa
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a1 = *i.(*[]int)
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if !SameArray(a, a1) {
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println("interface <-> *[]int", a, a1)
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}
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i = t
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t1 := i.(T)
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if t1.a != t.a || t1.b != t.b || t1.c != t.c || t1.d != t.d {
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println("interface <-> struct", t1.a, t1.b, t1.c, t1.d)
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}
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i = e
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e1 := i.(E)
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// nothing to check; just verify it doesn't crash
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_ = e1
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}
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func main() {
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arraycmptest()
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maptest()
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chantest()
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interfacetest()
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}
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