1 // errorcheck 2 3 // Copyright 2016 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 package main 8 9 func foo() (int, int) { 10 return 2.3 // ERROR "not enough arguments to return\n\thave \(number\)\n\twant \(int, int\)" 11 } 12 13 func foo2() { 14 return int(2), 2 // ERROR "too many arguments to return\n\thave \(int, number\)\n\twant \(\)" 15 } 16 17 func foo3(v int) (a, b, c, d int) { 18 if v >= 0 { 19 return 1 // ERROR "not enough arguments to return\n\thave \(number\)\n\twant \(int, int, int, int\)" 20 } 21 return 2, 3 // ERROR "not enough arguments to return\n\thave \(number, number\)\n\twant \(int, int, int, int\)" 22 } 23 24 func foo4(name string) (string, int) { 25 switch name { 26 case "cow": 27 return "moo" // ERROR "not enough arguments to return\n\thave \(string\)\n\twant \(string, int\)" 28 case "dog": 29 return "dog", 10, true // ERROR "too many arguments to return\n\thave \(string, number, bool\)\n\twant \(string, int\)" 30 case "fish": 31 return "" // ERROR "not enough arguments to return\n\thave \(string\)\n\twant \(string, int\)" 32 default: 33 return "lizard", 10 34 } 35 } 36 37 type S int 38 type T string 39 type U float64 40 41 func foo5() (S, T, U) { 42 if false { 43 return "" // ERROR "not enough arguments to return\n\thave \(string\)\n\twant \(S, T, U\)" 44 } else { 45 ptr := new(T) 46 return ptr // ERROR "not enough arguments to return\n\thave \(\*T\)\n\twant \(S, T, U\)" 47 } 48 return new(S), 12.34, 1 + 0i, 'r', true // ERROR "too many arguments to return\n\thave \(\*S, number, number, number, bool\)\n\twant \(S, T, U\)" 49 } 50 51 func foo6() (T, string) { 52 return "T", true, true // ERROR "too many arguments to return\n\thave \(string, bool, bool\)\n\twant \(T, string\)" 53 } 54
