cmd/compile: handle ODDD in exprformat

Fixes #41247 Change-Id: Iaa9502cc610e2cc64be5dfd91ba3187f86f87cbd Reviewed-on: https://go-review.googlesource.com/c/go/+/252942 Run-TryBot: Cuong Manh Le <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Rob Pike <[email protected]>
cloudflare · Sep 7, 2020 · dc025c0 · dc025c0
1 parent 0e19aaa
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diff --git a/src/cmd/compile/internal/gc/fmt.go b/src/cmd/compile/internal/gc/fmt.go
@@ -1616,7 +1616,8 @@ func (n *Node) exprfmt(s fmt.State, prec int, mode fmtMode) {
  }
  n1.exprfmt(s, nprec, mode)
  }
-
+ case ODDD:
+ mode.Fprintf(s, "...")
  default:
  mode.Fprintf(s, "<node %v>", n.Op)
  }

diff --git a/test/fixedbugs/issue41247.go b/test/fixedbugs/issue41247.go
@@ -0,0 +1,11 @@
+// errorcheck
+
+// Copyright 2020 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 p
+
+func f() [2]int {
+ return [...]int{2: 0} // ERROR "cannot use \[\.\.\.\]int literal \(type \[3\]int\)"
+}