// 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") } }