mirror of
https://github.com/golang/go
synced 2024-11-24 01:00:15 -07:00
c25bf0d959
Thanks to emmanuel@orijtech.com who wrote the initial version of this change (CL 354490). This change is following CL 354490 in idea but also contains various simplifications, slightly improved printing of signature/type patterns, adjustments for types2, and some fine-tuning of error positions. Also adjusted several ERROR regexp patterns. Fixes #48834. Fixes #48835. Change-Id: I31cf20c81753b1dc84836dbe83a39030ceb9db23 Reviewed-on: https://go-review.googlesource.com/c/go/+/364874 Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com> Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
54 lines
2.0 KiB
Go
54 lines
2.0 KiB
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\n\thave \(int, number\)\n\twant \(\)|return with value in function with no return type|no result values expected"
|
|
}
|
|
|
|
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"
|
|
}
|