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// Copyright 2015 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.
// chan_ssa.go tests chan operations.
package main
import "fmt"
var failed = false
//go:noinline
func lenChan_ssa(v chan int) int {
return len(v)
}
//go:noinline
func capChan_ssa(v chan int) int {
return cap(v)
}
func testLenChan() {
v := make(chan int, 10)
v <- 1
v <- 1
v <- 1
if want, got := 3, lenChan_ssa(v); got != want {
fmt.Printf("expected len(chan) = %d, got %d", want, got)
failed = true
}
}
func testLenNilChan() {
var v chan int
if want, got := 0, lenChan_ssa(v); got != want {
fmt.Printf("expected len(nil) = %d, got %d", want, got)
failed = true
}
}
func testCapChan() {
v := make(chan int, 25)
if want, got := 25, capChan_ssa(v); got != want {
fmt.Printf("expected cap(chan) = %d, got %d", want, got)
failed = true
}
}
func testCapNilChan() {
var v chan int
if want, got := 0, capChan_ssa(v); got != want {
fmt.Printf("expected cap(nil) = %d, got %d", want, got)
failed = true
}
}
func main() {
testLenChan()
testLenNilChan()
testCapChan()
testCapNilChan()
if failed {
panic("failed")
}
}
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