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cmd/compile: fix assert condition in generic method call
Fixes #53406. Change-Id: If7ae39ec1042a792d82a0a2de96d168c22d8ab71 Reviewed-on: https://go-review.googlesource.com/c/go/+/412614 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Alex Rakoczy <alex@golang.org> Auto-Submit: Alex Rakoczy <alex@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
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@ -208,9 +208,15 @@ func (g *genInst) scanForGenCalls(decl ir.Node) {
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st := g.getInstantiation(gf, targs, true).fun
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dictValue, usingSubdict := g.getDictOrSubdict(declInfo, n, gf, targs, true)
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// We have to be using a subdictionary, since this is
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// a generic method call.
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assert(usingSubdict)
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if hasShapeTypes(targs) {
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// We have to be using a subdictionary, since this is
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// a generic method call.
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assert(usingSubdict)
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} else {
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// We should use main dictionary, because the receiver is
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// an instantiation already, see issue #53406.
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assert(!usingSubdict)
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}
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// Transform to a function call, by appending the
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// dictionary and the receiver to the args.
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22
test/typeparam/issue53406.go
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22
test/typeparam/issue53406.go
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@ -0,0 +1,22 @@
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// compile
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// Copyright 2022 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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func main() {
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f[int]()
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}
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func f[T1 any]() {
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var x Outer[T1, int]
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x.M()
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}
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type Outer[T1, T2 any] struct{ Inner[T2] }
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type Inner[_ any] int
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func (Inner[_]) M() {}
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