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go/test/fixedbugs/issue4215.go
Robert Griesemer edf80c4209 [dev.typeparams] cmd/compile/internal/types2: adjusted more error messages for compiler
Triaged and adjusted more test/fixedbugs/* tests.

Change-Id: I80b9ead2445bb8d126b7d79db4bea9ddcb225a84
Reviewed-on: https://go-review.googlesource.com/c/go/+/276812
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2020-12-09 23:59:57 +00:00

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 arguments to return\n\thave \(number\)\n\twant \(int, int\)|wrong number of return values"
}
func foo2() {
return int(2), 2 // ERROR "too many arguments to return\n\thave \(int, number\)\n\twant \(\)|no result values expected"
}
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 \(int, int, int, int\)|wrong number of return values"
}
return 2, 3 // ERROR "not enough arguments to return\n\thave \(number, number\)\n\twant \(int, int, int, int\)|wrong number of return values"
}
func foo4(name string) (string, int) {
switch name {
case "cow":
return "moo" // ERROR "not enough arguments to return\n\thave \(string\)\n\twant \(string, int\)|wrong number of return values"
case "dog":
return "dog", 10, true // ERROR "too many arguments to return\n\thave \(string, number, bool\)\n\twant \(string, int\)|wrong number of return values"
case "fish":
return "" // ERROR "not enough arguments to return\n\thave \(string\)\n\twant \(string, int\)|wrong number of return values"
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 \(S, T, U\)|wrong number of return values"
} else {
ptr := new(T)
return ptr // ERROR "not enough arguments to return\n\thave \(\*T\)\n\twant \(S, T, U\)|wrong number of return values"
}
return new(S), 12.34, 1 + 0i, 'r', true // ERROR "too many arguments to return\n\thave \(\*S, number, number, number, bool\)\n\twant \(S, T, U\)|wrong number of return values"
}
func foo6() (T, string) {
return "T", true, true // ERROR "too many arguments to return\n\thave \(string, bool, bool\)\n\twant \(T, string\)|wrong number of return values"
}