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cmd/compile: don't crash on complex(0())
Fixes #17038. Change-Id: Iaf6294361050040830af1d60cd48f263223d9356 Reviewed-on: https://go-review.googlesource.com/28966 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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@ -1397,6 +1397,10 @@ OpSwitch:
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}
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t := n.List.First().Left.Type
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if !t.IsKind(TFUNC) {
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// Bail. This error will be reported elsewhere.
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return n
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}
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if t.Results().NumFields() != 2 {
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Yyerror("invalid operation: complex expects two arguments, %v returns %d results", n.List.First(), t.Results().NumFields())
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n.Type = nil
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9
test/fixedbugs/issue17038.go
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9
test/fixedbugs/issue17038.go
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@ -0,0 +1,9 @@
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// errorcheck
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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const A = complex(0()) // ERROR "cannot call non-function"
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