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use new BuiltStyledStreamWriter in operator<<()

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This commit is contained in:
Christopher Dunn 2015-01-22 16:10:10 -06:00
parent 4d649402b0
commit d49ab5aee1
1 changed files with 32 additions and 7 deletions
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39
src/lib_json/json_writer.cpp
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@ -665,12 +665,29 @@ bool StyledStreamWriter::hasCommentForValue(const Value& value) {
value.hasComment(commentAfter); value.hasComment(commentAfter);
} }
std::ostream& operator<<(std::ostream& sout, const Value& root) { struct BuiltStyledStreamWriter : public StreamWriter
Json::StyledStreamWriter writer; {
writer.write(sout, root); mutable StyledStreamWriter old_;
return sout;
}
BuiltStyledStreamWriter(
std::ostream* sout,
std::string const& indentation,
StreamWriter::CommentStyle cs);
virtual int write(Value const& root) const;
};
BuiltStyledStreamWriter::BuiltStyledStreamWriter(
std::ostream* sout,
std::string const& indentation,
StreamWriter::CommentStyle cs)
: StreamWriter(sout)
, old_(indentation)
{
}
int BuiltStyledStreamWriter::write(Value const& root) const
{
old_.write(sout_, root);
return 0;
}
StreamWriter::StreamWriter(std::ostream* sout) StreamWriter::StreamWriter(std::ostream* sout)
: sout_(*sout) : sout_(*sout)
{ {
@ -720,8 +737,7 @@ void StreamWriterBuilder::setIndentation(std::string v)
} }
StreamWriter* StreamWriterBuilder::newStreamWriter(std::ostream* stream) const StreamWriter* StreamWriterBuilder::newStreamWriter(std::ostream* stream) const
{ {
// return new StyledStreamWriter(stream); return new BuiltStyledStreamWriter(stream, indentation_, cs_);
return nullptr;
} }
StreamWriterBuilderFactory::~StreamWriterBuilderFactory() StreamWriterBuilderFactory::~StreamWriterBuilderFactory()
{ {
@ -761,4 +777,13 @@ std::string writeString(Value const& root, StreamWriterBuilder const& builder) {
return sout.str(); return sout.str();
} }
std::ostream& operator<<(std::ostream& sout, const Value& root) {
StreamWriterBuilderFactory f;
StreamWriter::Builder builder(&f);
builder.setCommentStyle(StreamWriter::CommentStyle::Some);
std::shared_ptr<StreamWriter> writer(builder.newStreamWriter(&sout));
writer->write(root);
return sout;
}
} // namespace Json } // namespace Json