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[dev.typeparams] cmd/compile/internal/types: format union types
Previously it was just printing <S>. Now it prints things like int32|~int64. Change-Id: I960b011ce8ed360020a49ae7809d85d1d1fdbfb2 Reviewed-on: https://go-review.googlesource.com/c/go/+/336692 Trust: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
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@ -590,6 +590,18 @@ func tconv2(b *bytes.Buffer, t *Type, verb rune, mode fmtMode, visited map[*Type
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b.WriteString(fmt.Sprintf("%p", t))
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}
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case TUNION:
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for i := 0; i < t.NumTerms(); i++ {
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if i > 0 {
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b.WriteString("|")
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}
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elem, tilde := t.Term(i)
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if tilde {
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b.WriteString("~")
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}
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tconv2(b, elem, 0, mode, visited)
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}
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case Txxx:
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b.WriteString("Txxx")
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