| // 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 arguments to return\n\thave \(number\)\n\twant \(int, int\)|not enough arguments to return" |
| } |
| |
| func foo2() { |
| return int(2), 2 // ERROR "too many arguments to return\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 arguments to return\n\thave \(number\)\n\twant \(int, int, int, int\)|not enough arguments to return" |
| } |
| return 2, 3 // ERROR "not enough arguments to return\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 arguments to return\n\thave \(string\)\n\twant \(string, int\)|not enough arguments to return" |
| case "dog": |
| return "dog", 10, true // ERROR "too many arguments to return\n\thave \(string, number, bool\)\n\twant \(string, int\)|too many values in return statement" |
| case "fish": |
| return "" // ERROR "not enough arguments to return\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 arguments to return\n\thave \(string\)\n\twant \(S, T, U\)|not enough arguments to return" |
| } else { |
| ptr := new(T) |
| return ptr // ERROR "not enough arguments to return\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 arguments to return\n\thave \(\*S, number, number, number, bool\)\n\twant \(S, T, U\)|too many values in return statement" |
| } |
| |
| func foo6() (T, string) { |
| return "T", true, true // ERROR "too many arguments to return\n\thave \(string, bool, bool\)\n\twant \(T, string\)|too many values in return statement" |
| } |