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a360eeb528
Disabled test/typeparam/fact.go for now as there's an issue with stenciling. Change-Id: Ie328a217de6d7b6695737f08ef5c944bcdaabd39 Reviewed-on: https://go-review.googlesource.com/c/go/+/290471 Trust: Robert Griesemer <gri@golang.org> Trust: Dan Scales <danscales@google.com> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
38 lines
884 B
Go
38 lines
884 B
Go
// run -gcflags=-G=3
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// Copyright 2021 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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import "fmt"
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// TODO Stenciling doesn't do the right thing for T(1) at the moment.
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func fact[T interface { type int, int64, float64 }](n T) T {
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// TODO remove this return in favor of the correct computation below
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return n
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// if n == T(1) {
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// return T(1)
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// }
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// return n * fact(n - T(1))
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}
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func main() {
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// TODO change this to 120 once we can compile the function body above
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const want = 5 // 120
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if got := fact(5); got != want {
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panic(fmt.Sprintf("got %d, want %d", got, want))
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}
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if got := fact[int64](5); got != want {
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panic(fmt.Sprintf("got %d, want %d", got, want))
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}
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if got := fact(5.0); got != want {
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panic(fmt.Sprintf("got %f, want %f", got, want))
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}
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}
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