blob: bece1874ac400c5fdeb08a45d5ac5802a28f77f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright 2021 The Abseil Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef ABSL_STRINGS_INTERNAL_CORD_REP_CONSUME_H_
#define ABSL_STRINGS_INTERNAL_CORD_REP_CONSUME_H_
#include <functional>
#include "absl/functional/function_ref.h"
#include "absl/strings/internal/cord_internal.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace cord_internal {
// Consume() and ReverseConsume() consume CONCAT based trees and invoke the
// provided functor with the contained nodes in the proper forward or reverse
// order, which is used to convert CONCAT trees into other tree or cord data.
// All CONCAT and SUBSTRING nodes are processed internally. The 'offset`
// parameter of the functor is non-zero for any nodes below SUBSTRING nodes.
// It's up to the caller to form these back into SUBSTRING nodes or otherwise
// store offset / prefix information. These functions are intended to be used
// only for migration / transitional code where due to factors such as ODR
// violations, we can not 100% guarantee that all code respects 'new format'
// settings and flags, so we need to be able to parse old data on the fly until
// all old code is deprecated / no longer the default format.
void Consume(CordRep* rep,
FunctionRef<void(CordRep*, size_t, size_t)> consume_fn);
void ReverseConsume(CordRep* rep,
FunctionRef<void(CordRep*, size_t, size_t)> consume_fn);
} // namespace cord_internal
ABSL_NAMESPACE_END
} // namespace absl
#endif // ABSL_STRINGS_INTERNAL_CORD_REP_CONSUME_H_
|
