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/*
* Copyright 2016 Google Inc. All rights reserved.
*
* 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.
*/
#include "flatbuffers/code_generators.h"
#include <assert.h>
#include "flatbuffers/util.h"
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable: 4127) // C4127: conditional expression is constant
#endif
namespace flatbuffers {
void CodeWriter::operator+=(std::string text) {
while (true) {
auto begin = text.find("{{");
if (begin == std::string::npos) {
break;
}
auto end = text.find("}}");
if (end == std::string::npos || end < begin) {
break;
}
// Write all the text before the first {{ into the stream.
stream_.write(text.c_str(), begin);
// The key is between the {{ and }}.
const std::string key = text.substr(begin + 2, end - begin - 2);
// Find the value associated with the key. If it exists, write the
// value into the stream, otherwise write the key itself into the stream.
auto iter = value_map_.find(key);
if (iter != value_map_.end()) {
const std::string &value = iter->second;
stream_ << value;
} else {
assert(false && "could not find key");
stream_ << key;
}
// Update the text to everything after the }}.
text = text.substr(end + 2);
}
if (!text.empty() && text.back() == '\\') {
text.pop_back();
stream_ << text;
} else {
stream_ << text << std::endl;
}
}
const char *BaseGenerator::FlatBuffersGeneratedWarning() {
return "automatically generated by the FlatBuffers compiler,"
" do not modify\n\n";
}
std::string BaseGenerator::NamespaceDir(const Parser &parser,
const std::string &path,
const Namespace &ns) {
EnsureDirExists(path.c_str());
if (parser.opts.one_file) return path;
std::string namespace_dir = path; // Either empty or ends in separator.
auto &namespaces = ns.components;
for (auto it = namespaces.begin(); it != namespaces.end(); ++it) {
namespace_dir += *it + kPathSeparator;
EnsureDirExists(namespace_dir.c_str());
}
return namespace_dir;
}
std::string BaseGenerator::NamespaceDir(const Namespace &ns) const {
return BaseGenerator::NamespaceDir(parser_, path_, ns);
}
std::string BaseGenerator::FullNamespace(const char *separator,
const Namespace &ns) {
std::string namespace_name;
auto &namespaces = ns.components;
for (auto it = namespaces.begin(); it != namespaces.end(); ++it) {
if (namespace_name.length()) namespace_name += separator;
namespace_name += *it;
}
return namespace_name;
}
std::string BaseGenerator::LastNamespacePart(const Namespace &ns) {
if (!ns.components.empty())
return ns.components.back();
else
return std::string("");
}
// Ensure that a type is prefixed with its namespace whenever it is used
// outside of its namespace.
std::string BaseGenerator::WrapInNameSpace(const Namespace *ns,
const std::string &name) const {
if (CurrentNameSpace() == ns) return name;
std::string qualified_name = qualifying_start_;
for (auto it = ns->components.begin(); it != ns->components.end(); ++it)
qualified_name += *it + qualifying_separator_;
return qualified_name + name;
}
std::string BaseGenerator::WrapInNameSpace(const Definition &def) const {
return WrapInNameSpace(def.defined_namespace, def.name);
}
std::string BaseGenerator::GetNameSpace(const Definition &def) const {
const Namespace *ns = def.defined_namespace;
if (CurrentNameSpace() == ns) return "";
std::string qualified_name = qualifying_start_;
for (auto it = ns->components.begin(); it != ns->components.end(); ++it) {
qualified_name += *it;
if (std::next(it) != ns->components.end()) {
qualified_name += qualifying_separator_;
}
}
return qualified_name;
}
// Generate a documentation comment, if available.
void GenComment(const std::vector<std::string> &dc, std::string *code_ptr,
const CommentConfig *config, const char *prefix) {
if (dc.begin() == dc.end()) {
// Don't output empty comment blocks with 0 lines of comment content.
return;
}
std::string &code = *code_ptr;
if (config != nullptr && config->first_line != nullptr) {
code += std::string(prefix) + std::string(config->first_line) + "\n";
}
std::string line_prefix = std::string(prefix) +
((config != nullptr && config->content_line_prefix != nullptr) ?
config->content_line_prefix : "///");
for (auto it = dc.begin();
it != dc.end();
++it) {
code += line_prefix + *it + "\n";
}
if (config != nullptr && config->last_line != nullptr) {
code += std::string(prefix) + std::string(config->last_line) + "\n";
}
}
} // namespace flatbuffers
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
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