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fa03ee7782
Generally, methods that take a *TextBuffer pointer do not care how the internal buffer is allocated, and so they could be used for either if both were subclasses of a base class that contained the printing methods. This CL makes that base class, and now TextBuffer and ZoneTextBuffer now share the exact same set of methods for printing to the internal buffer. Since the base class is in platform, this does mean dropping the overload of AddString for Dart String objects that was part of ZoneTextBuffer. Instead, this CL just adds an intermediate call to ToCString() for the small number of callers that used the overload, keeping the printing interface the same for both. In addition, one use of TextBuffer that then re-allocated the buffer contents into the zone manually has been replaced with a ZoneTextBuffer instead. Change-Id: I438a085e7e20d55d93987fd7f36afd636f95955f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157741 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Tess Strickland <sstrickl@google.com>
96 lines
3 KiB
C++
96 lines
3 KiB
C++
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_VM_JSON_WRITER_H_
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#define RUNTIME_VM_JSON_WRITER_H_
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#include "platform/allocation.h"
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#include "platform/text_buffer.h"
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namespace dart {
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class String;
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class JSONWriter : ValueObject {
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public:
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explicit JSONWriter(intptr_t buf_size = 256);
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TextBuffer* buffer() { return &buffer_; }
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const char* ToCString() { return buffer_.buffer(); }
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void Steal(char** buffer, intptr_t* buffer_length);
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void PrintCommaIfNeeded();
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// Append |serialized_object| to the stream.
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void AppendSerializedObject(const char* serialized_object);
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// Append |buffer| to the stream.
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void AppendSerializedObject(const uint8_t* buffer, intptr_t buffer_length);
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// Append |serialized_object| to the stream with |property_name|.
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void AppendSerializedObject(const char* property_name,
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const char* serialized_object);
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void OpenObject(const char* property_name = NULL);
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void CloseObject();
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void UncloseObject();
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void OpenArray(const char* property_name = NULL);
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void CloseArray();
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void Clear();
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void PrintValueNull();
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void PrintValueBool(bool b);
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void PrintValue(intptr_t i);
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void PrintValue64(int64_t i);
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void PrintValue(double d);
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void PrintValueBase64(const uint8_t* bytes, intptr_t length);
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void PrintValue(const char* s);
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void PrintValue(const char* s, intptr_t len);
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void PrintValueNoEscape(const char* s);
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void PrintfValue(const char* format, ...) PRINTF_ATTRIBUTE(2, 3);
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void VPrintfValue(const char* format, va_list args);
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bool PrintValueStr(const String& s, intptr_t offset, intptr_t count);
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void PrintPropertyBool(const char* name, bool b);
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void PrintProperty(const char* name, intptr_t i);
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void PrintProperty64(const char* name, int64_t i);
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void PrintProperty(const char* name, double d);
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void PrintPropertyBase64(const char* name,
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const uint8_t* bytes,
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intptr_t length);
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void PrintProperty(const char* name, const char* s);
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bool PrintPropertyStr(const char* name,
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const String& s,
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intptr_t offset = 0,
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intptr_t count = -1);
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void PrintPropertyNoEscape(const char* name, const char* s);
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void PrintfProperty(const char* name, const char* format, ...)
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PRINTF_ATTRIBUTE(3, 4);
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void VPrintfProperty(const char* name, const char* format, va_list args);
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void PrintPropertyName(const char* name);
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void PrintNewline();
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void AddEscapedUTF8String(const char* s);
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void AddEscapedUTF8String(const char* s, intptr_t len);
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private:
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bool NeedComma();
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bool AddDartString(const String& s, intptr_t offset, intptr_t count);
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// Debug only fatal assertion.
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static void EnsureIntegerIsRepresentableInJavaScript(int64_t i);
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intptr_t open_objects_;
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TextBuffer buffer_;
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};
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} // namespace dart
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#endif // RUNTIME_VM_JSON_WRITER_H_
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