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go/types, types2: better error message for some invalid integer array lengths

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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>
This commit is contained in:
Robert Griesemer 2023-03-23 13:57:47 -07:00 • committed by Gopher Robot
parent d49b11be1d
commit bf9d9b7dba
7 changed files with 30 additions and 11 deletions
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2
test/fixedbugs/bug255.go
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@ -13,7 +13,7 @@ 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|must be integer"
var g [1 << 65]int // ERROR "array bound is too large|overflows|invalid array length"
var h [len(a)]int // ok
func ff() string