328cf76e35
Review URL: https://codereview.chromium.org/882973002 Cr-Commit-Position: refs/heads/master@{#26323}
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_OSTREAMS_H_
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#define V8_OSTREAMS_H_
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#include <cstddef>
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#include <cstdio>
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#include <cstring>
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#include <ostream> // NOLINT
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#include <streambuf>
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#include "include/v8config.h"
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#include "src/base/macros.h"
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namespace v8 {
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namespace internal {
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class OFStreamBase : public std::streambuf {
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public:
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explicit OFStreamBase(FILE* f);
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virtual ~OFStreamBase();
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protected:
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FILE* const f_;
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virtual int sync();
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virtual int_type overflow(int_type c);
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virtual std::streamsize xsputn(const char* s, std::streamsize n);
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};
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// An output stream writing to a file.
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class OFStream : public std::ostream {
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public:
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explicit OFStream(FILE* f);
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~OFStream();
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private:
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OFStreamBase buf_;
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};
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// Wrappers to disambiguate uint16_t and uc16.
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struct AsUC16 {
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explicit AsUC16(uint16_t v) : value(v) {}
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uint16_t value;
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};
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struct AsReversiblyEscapedUC16 {
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explicit AsReversiblyEscapedUC16(uint16_t v) : value(v) {}
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uint16_t value;
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};
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struct AsEscapedUC16ForJSON {
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explicit AsEscapedUC16ForJSON(uint16_t v) : value(v) {}
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uint16_t value;
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};
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// Writes the given character to the output escaping everything outside of
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// printable/space ASCII range. Additionally escapes '\' making escaping
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// reversible.
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std::ostream& operator<<(std::ostream& os, const AsReversiblyEscapedUC16& c);
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// Same as AsReversiblyEscapedUC16 with additional escaping of \n, \r, " and '.
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std::ostream& operator<<(std::ostream& os, const AsEscapedUC16ForJSON& c);
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// Writes the given character to the output escaping everything outside
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// of printable ASCII range.
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std::ostream& operator<<(std::ostream& os, const AsUC16& c);
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} // namespace internal
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} // namespace v8
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#endif // V8_OSTREAMS_H_
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