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cmd/compile: allow print/println(f()) where f() is multi-value

Fixes #35576

Change-Id: Ia128f412120069e9f8813e9e910e62644f950bfb
Reviewed-on: https://go-review.googlesource.com/c/go/+/207118
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Cuong Manh Le 2019-11-14 10:00:33 +07:00 committed by Ian Lance Taylor
parent d67d044310
commit af686da46f
3 changed files with 18 additions and 1 deletions

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@ -1805,7 +1805,7 @@ func typecheck1(n *Node, top int) (res *Node) {
case OPRINT, OPRINTN:
ok |= ctxStmt
typecheckslice(n.List.Slice(), ctxExpr)
typecheckargs(n)
ls := n.List.Slice()
for i1, n1 := range ls {
// Special case for print: int constant is int64, not int.

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@ -0,0 +1,16 @@
// run
// Copyright 2019 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.
// Check print/println(f()) is allowed where f() is multi-value.
package main
func f() (int16, float64, string) { return -42, 42.0, "x" }
func main() {
print(f())
println(f())
}

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@ -0,0 +1 @@
-42+4.200000e+001x-42 +4.200000e+001 x