go issue4215 源码
golang issue4215 代码
文件路径：/test/fixedbugs/issue4215.go
// errorcheck
// Copyright 2016 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
func foo() (int, int) {
return 2.3 // ERROR "not enough return values\n\thave \(number\)\n\twant \(int, int\)|not enough arguments to return"
}
func foo2() {
return int(2), 2 // ERROR "too many (arguments to return|return values)\n\thave \(int, number\)\n\twant \(\)|return with value in function with no return type"
}
func foo3(v int) (a, b, c, d int) {
if v >= 0 {
return 1 // ERROR "not enough return values\n\thave \(number\)\n\twant \(int, int, int, int\)|not enough arguments to return"
}
return 2, 3 // ERROR "not enough return values\n\thave \(number, number\)\n\twant \(int, int, int, int\)|not enough arguments to return"
}
func foo4(name string) (string, int) {
switch name {
case "cow":
return "moo" // ERROR "not enough return values\n\thave \(string\)\n\twant \(string, int\)|not enough arguments to return"
case "dog":
return "dog", 10, true // ERROR "too many return values\n\thave \(string, number, bool\)\n\twant \(string, int\)|too many arguments to return"
case "fish":
return "" // ERROR "not enough return values\n\thave \(string\)\n\twant \(string, int\)|not enough arguments to return"
default:
return "lizard", 10
}
}
type S int
type T string
type U float64
func foo5() (S, T, U) {
if false {
return "" // ERROR "not enough return values\n\thave \(string\)\n\twant \(S, T, U\)|not enough arguments to return"
} else {
ptr := new(T)
return ptr // ERROR "not enough return values\n\thave \(\*T\)\n\twant \(S, T, U\)|not enough arguments to return"
}
return new(S), 12.34, 1 + 0i, 'r', true // ERROR "too many return values\n\thave \(\*S, number, number, number, bool\)\n\twant \(S, T, U\)|too many arguments to return"
}
func foo6() (T, string) {
return "T", true, true // ERROR "too many return values\n\thave \(string, bool, bool\)\n\twant \(T, string\)|too many arguments to return"
}
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