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go/test/append1.go
Robert Griesemer 7997e5f254 cmd/compile: use "cannot use %s as %s value in %s: %s" error message
This is close to what the compiler used to say, except now we say
"as T value" rather than "as type T" which is closer to the truth
(we cannot use a value as a type, after all). Also, place the primary
error and the explanation (cause) on a single line.

Make respective (single line) adjustment to the matching "cannot
convert" error.

Adjust various tests.

For #55326.

Change-Id: Ib646cf906b11f4129b7ed0c38cf16471f9266b88
Reviewed-on: https://go-review.googlesource.com/c/go/+/436176
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-09-28 22:28:39 +00:00

23 lines
856 B
Go

// errorcheck
// Copyright 2017 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.
// Verify that append arguments requirements are enforced by the
// compiler.
package main
func main() {
s := make([]int, 8)
_ = append() // ERROR "missing arguments to append|not enough arguments for append"
_ = append(s...) // ERROR "cannot use ... on first argument|not enough arguments in call to append"
_ = append(s, 2, s...) // ERROR "too many arguments to append|too many arguments in call to append"
_ = append(s, make([]int, 0)) // ERROR "cannot use make\(\[\]int, 0\) \(value of type \[\]int\) as int value in argument to append"
_ = append(s, make([]int, -1)...) // ERROR "negative len argument in make|index -1.* must not be negative"
}