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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
*
* Copyright 2015 gRPC 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
*
* http://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 GRPC_INTERNAL_COMPILER_RUBY_GENERATOR_STRING_INL_H
#define GRPC_INTERNAL_COMPILER_RUBY_GENERATOR_STRING_INL_H
#include <algorithm>
#include <sstream>
#include <vector>
#include "src/compiler/config.h"
using std::getline;
using std::transform;
namespace grpc_ruby_generator {
// Split splits a string using char into elems.
inline std::vector<TString>& Split(const TString& s, char delim,
std::vector<TString>* elems) {
std::stringstream ss(s);
std::string item;
while (getline(ss, item, delim)) {
elems->emplace_back(item);
}
return *elems;
}
// Split splits a string using char, returning the result in a vector.
inline std::vector<TString> Split(const TString& s, char delim) {
std::vector<TString> elems;
Split(s, delim, &elems);
return elems;
}
// Replace replaces from with to in s.
inline TString Replace(TString s, const TString& from,
const TString& to) {
size_t start_pos = s.find(from);
if (start_pos == TString::npos) {
return s;
}
s.replace(start_pos, from.length(), to);
return s;
}
// ReplaceAll replaces all instances of search with replace in s.
inline TString ReplaceAll(TString s, const TString& search,
const TString& replace) {
size_t pos = 0;
while ((pos = s.find(search, pos)) != TString::npos) {
s.replace(pos, search.length(), replace);
pos += replace.length();
}
return s;
}
// ReplacePrefix replaces from with to in s if search is a prefix of s.
inline bool ReplacePrefix(TString* s, const TString& from,
const TString& to) {
size_t start_pos = s->find(from);
if (start_pos == TString::npos || start_pos != 0) {
return false;
}
s->replace(start_pos, from.length(), to);
return true;
}
// Modularize converts a string into a ruby module compatible name
inline TString Modularize(TString s) {
if (s.empty()) {
return s;
}
TString new_string = "";
bool was_last_underscore = false;
new_string.append(1, ::toupper(s[0]));
for (TString::size_type i = 1; i < s.size(); ++i) {
if (was_last_underscore && s[i] != '_') {
new_string.append(1, ::toupper(s[i]));
} else if (s[i] != '_') {
new_string.append(1, s[i]);
}
was_last_underscore = s[i] == '_';
}
return new_string;
}
// RubyPackage gets the ruby package in either proto or ruby_package format
inline TString RubyPackage(const grpc::protobuf::FileDescriptor* file) {
TString package_name = file->package();
if (file->options().has_ruby_package()) {
package_name = file->options().ruby_package();
// If :: is in the package convert the Ruby formatted name
// -> A::B::C
// to use the dot seperator notation
// -> A.B.C
package_name = ReplaceAll(package_name, "::", ".");
}
return package_name;
}
// RubyTypeOf updates a proto type to the required ruby equivalent.
inline TString RubyTypeOf(const grpc::protobuf::Descriptor* descriptor) {
TString proto_type = descriptor->full_name();
if (descriptor->file()->options().has_ruby_package()) {
// remove the leading package if present
ReplacePrefix(&proto_type, descriptor->file()->package(), "");
ReplacePrefix(&proto_type, ".", ""); // remove the leading . (no package)
proto_type = RubyPackage(descriptor->file()) + "." + proto_type;
}
TString res("." + proto_type);
if (res.find('.') == TString::npos) {
return res;
} else {
std::vector<TString> prefixes_and_type = Split(res, '.');
res.clear();
for (unsigned int i = 0; i < prefixes_and_type.size(); ++i) {
if (i != 0) {
res += "::"; // switch '.' to the ruby module delim
}
if (i < prefixes_and_type.size() - 1) {
res += Modularize(prefixes_and_type[i]); // capitalize pkgs
} else {
res += prefixes_and_type[i];
}
}
return res;
}
}
} // namespace grpc_ruby_generator
#endif // GRPC_INTERNAL_COMPILER_RUBY_GENERATOR_STRING_INL_H
|
