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Source file src/runtime/closure_test.go

Documentation: runtime

  // Copyright 2011 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 runtime_test
  
  import "testing"
  
  var s int
  
  func BenchmarkCallClosure(b *testing.B) {
  	for i := 0; i < b.N; i++ {
  		s += func(ii int) int { return 2 * ii }(i)
  	}
  }
  
  func BenchmarkCallClosure1(b *testing.B) {
  	for i := 0; i < b.N; i++ {
  		j := i
  		s += func(ii int) int { return 2*ii + j }(i)
  	}
  }
  
  var ss *int
  
  func BenchmarkCallClosure2(b *testing.B) {
  	for i := 0; i < b.N; i++ {
  		j := i
  		s += func() int {
  			ss = &j
  			return 2
  		}()
  	}
  }
  
  func addr1(x int) *int {
  	return func() *int { return &x }()
  }
  
  func BenchmarkCallClosure3(b *testing.B) {
  	for i := 0; i < b.N; i++ {
  		ss = addr1(i)
  	}
  }
  
  func addr2() (x int, p *int) {
  	return 0, func() *int { return &x }()
  }
  
  func BenchmarkCallClosure4(b *testing.B) {
  	for i := 0; i < b.N; i++ {
  		_, ss = addr2()
  	}
  }
  

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