go main 源码
golang main 代码
文件路径：/src/runtime/testdata/testprog/main.go
// 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.
package main
import "os"
var cmds = map[string]func(){}
func register(name string, f func()) {
if cmds[name] != nil {
panic("duplicate registration: " + name)
}
cmds[name] = f
}
func registerInit(name string, f func()) {
if len(os.Args) >= 2 && os.Args[1] == name {
f()
}
}
func main() {
if len(os.Args) < 2 {
println("usage: " + os.Args[0] + " name-of-test")
return
}
f := cmds[os.Args[1]]
if f == nil {
println("unknown function: " + os.Args[1])
return
}
f()
}
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