first commit

2025-07-05 15:42:33 +00:00 · 2022-05-23 00:16:32 +04:00
commit d660f2a4ca
24786 changed files with 4428337 additions and 0 deletions
--- a/.venv/Lib/site-packages/pyarrow/include/arrow/util/string_builder.h
+++ b/.venv/Lib/site-packages/pyarrow/include/arrow/util/string_builder.h
@ -0,0 +1,84 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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. template <typename T>
+
+#pragma once
+
+#include <memory>
+#include <ostream>
+#include <string>
+#include <utility>
+
+#include "arrow/util/visibility.h"
+
+namespace arrow {
+namespace util {
+
+namespace detail {
+
+class ARROW_EXPORT StringStreamWrapper {
+ public:
+  StringStreamWrapper();
+  ~StringStreamWrapper();
+
+  std::ostream& stream() { return ostream_; }
+  std::string str();
+
+ protected:
+  std::unique_ptr<std::ostringstream> sstream_;
+  std::ostream& ostream_;
+};
+
+}  // namespace detail
+
+template <typename Head>
+void StringBuilderRecursive(std::ostream& stream, Head&& head) {
+  stream << head;
+}
+
+template <typename Head, typename... Tail>
+void StringBuilderRecursive(std::ostream& stream, Head&& head, Tail&&... tail) {
+  StringBuilderRecursive(stream, std::forward<Head>(head));
+  StringBuilderRecursive(stream, std::forward<Tail>(tail)...);
+}
+
+template <typename... Args>
+std::string StringBuilder(Args&&... args) {
+  detail::StringStreamWrapper ss;
+  StringBuilderRecursive(ss.stream(), std::forward<Args>(args)...);
+  return ss.str();
+}
+
+/// CRTP helper for declaring string representation. Defines operator<<
+template <typename T>
+class ToStringOstreamable {
+ public:
+  ~ToStringOstreamable() {
+    static_assert(
+        std::is_same<decltype(std::declval<const T>().ToString()), std::string>::value,
+        "ToStringOstreamable depends on the method T::ToString() const");
+  }
+
+ private:
+  const T& cast() const { return static_cast<const T&>(*this); }
+
+  friend inline std::ostream& operator<<(std::ostream& os, const ToStringOstreamable& t) {
+    return os << t.cast().ToString();
+  }
+};
+
+}  // namespace util
+}  // namespace arrow