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go/test/fixedbugs/issue59709.dir/bresource.go
Than McIntosh ea69de9b92 cmd/compile: rework marking of dead hidden closure functions
[This is a roll-forward of CL 484859, this time including a fix for
issue #59709. The call to do dead function marking was taking place in
the wrong spot, causing it to run more than once if generics were
instantiated.]

This patch generalizes the code in the inliner that marks unreferenced
hidden closure functions as dead. Rather than doing the marking on the
fly (previous approach), this new approach does a single pass at the
end of inlining, which catches more dead functions.

Change-Id: I0e079ad755c21295477201acbd7e1a732a98fffd
Reviewed-on: https://go-review.googlesource.com/c/go/+/492016
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-05-05 21:04:28 +00:00

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Go

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bresource
type Resource[T any] struct {
name string
initializer Initializer[T]
cfg ResConfig
value T
}
func Should[T any](r *Resource[T], e error) bool {
return r.cfg.ShouldRetry(e)
}
type ResConfig struct {
ShouldRetry func(error) bool
TearDown func()
}
type Initializer[T any] func(*int) (T, error)
func New[T any](name string, f Initializer[T], cfg ResConfig) *Resource[T] {
return &Resource[T]{name: name, initializer: f, cfg: cfg}
}