protobuf-go/internal/strs/strings_pure.go
Joe Tsai 97a87391b1 internal/strs: unify string manipulation functionality
Create a new internal/strs package that unifies common functionality:
* Since protobuf itself pseudo-specifies at least 4 different camel-case
and snake-case conversion functions, we define all variants in one place.
* We move the internal/filedesc.nameBuilder function to this package.
We simplify its implementation to not depend on a strings.Builder fork
under the hood since the semantics we desire is simpler than what
strings.Builder provides.
* We use strs.Builder in reflect/protodesc in its construction of all
the full names. This is perfect use case of strs.Builder since all
full names within a file descriptor share the same lifetime.
* Add an UnsafeString and UnsafeBytes cast function that will be useful
in the near future for optimizing encoding/prototext and encoding/protojson.

Change-Id: I2cf07cbaf6f72e5f9fd6ae3d37b0d46f6af2ad59
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/185198
Reviewed-by: Damien Neil <dneil@google.com>
2019-07-09 19:57:23 +00:00

28 lines
585 B
Go

// Copyright 2018 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.
// +build purego appengine
package strs
import pref "google.golang.org/protobuf/reflect/protoreflect"
func UnsafeString(b []byte) string {
return string(b)
}
func UnsafeBytes(s string) []byte {
return []byte(s)
}
type Builder struct{}
func (*Builder) AppendFullName(prefix pref.FullName, name pref.Name) pref.FullName {
return prefix.Append(name)
}
func (*Builder) MakeString(b []byte) string {
return string(b)
}