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go/test/fixedbugs/bug255.go
Robert Griesemer bf9d9b7dba go/types, types2: better error message for some invalid integer array lengths
Don't say "array length must be integer" if it is in fact an integer.

Fixes #59209

Change-Id: If60b93a0418f5837ac334412d3838eec25eeb855
Reviewed-on: https://go-review.googlesource.com/c/go/+/479115
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-03-27 18:59:51 +00:00

22 lines
852 B
Go

// errorcheck
// Copyright 2010 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
var a [10]int // ok
var b [1e1]int // ok
var c [1.5]int // ERROR "truncated|must be integer"
var d ["abc"]int // ERROR "invalid array bound|not numeric|must be integer"
var e [nil]int // ERROR "use of untyped nil|invalid array (bound|length)|not numeric|must be constant"
// var f [e]int // ok with Go 1.17 because an error was reported for e; leads to an error for Go 1.18
var f [ee]int // ERROR "undefined|undeclared"
var g [1 << 65]int // ERROR "array bound is too large|overflows|invalid array length"
var h [len(a)]int // ok
func ff() string
var i [len([1]string{ff()})]int // ERROR "non-constant array bound|not constant|must be constant"