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[dev.typeparams] cmd/compile: fix bug with types2.Instantiate with interface type param
types2.subst has an assertion that check is non-nil, but which breaks Instantiate() with an interface type param (used when re-importing instatiated type to types2). But this check was added when Instantiate() was added, and things seem to work fine when the assertion is removed. Fixes test/typeparam/mdempsky/7.go. Change-Id: I4980f0b202a0b310a3c91a7a87f97576f54911de Reviewed-on: https://go-review.googlesource.com/c/go/+/333155 Run-TryBot: Dan Scales <danscales@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Trust: Dan Scales <danscales@google.com>
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@ -313,9 +313,6 @@ func (subst *subster) typ(typ Type) Type {
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embeddeds, ecopied := subst.typeList(t.embeddeds)
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if mcopied || ecopied {
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iface := &Interface{methods: methods, embeddeds: embeddeds, complete: t.complete}
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if subst.check == nil {
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panic("internal error: cannot instantiate interfaces yet")
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}
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return iface
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}
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@ -2209,7 +2209,6 @@ var g3Failures = setOf(
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"typeparam/mdempsky/3.go",
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"typeparam/mdempsky/4.go",
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"typeparam/mdempsky/5.go",
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"typeparam/mdempsky/7.go",
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"typeparam/mdempsky/9.go",
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"typeparam/mdempsky/11.go",
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"typeparam/mdempsky/12.go",
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