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#include <Parsers/ASTExpressionList.h>
#include <IO/Operators.h>
namespace DB
{
ASTPtr ASTExpressionList::clone() const
{
auto clone = std::make_shared<ASTExpressionList>(*this);
clone->cloneChildren();
return clone;
}
void ASTExpressionList::formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
if (frame.expression_list_prepend_whitespace)
settings.ostr << ' ';
for (ASTs::const_iterator it = children.begin(); it != children.end(); ++it)
{
if (it != children.begin())
{
if (separator)
settings.ostr << separator;
settings.ostr << ' ';
}
if (frame.surround_each_list_element_with_parens)
settings.ostr << "(";
FormatStateStacked frame_nested = frame;
frame_nested.surround_each_list_element_with_parens = false;
(*it)->formatImpl(settings, state, frame_nested);
if (frame.surround_each_list_element_with_parens)
settings.ostr << ")";
}
}
void ASTExpressionList::formatImplMultiline(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
std::string indent_str = "\n" + std::string(4 * (frame.indent + 1), ' ');
if (frame.expression_list_prepend_whitespace)
{
if (!(children.size() > 1 || frame.expression_list_always_start_on_new_line))
settings.ostr << ' ';
}
++frame.indent;
for (ASTs::const_iterator it = children.begin(); it != children.end(); ++it)
{
if (it != children.begin())
{
if (separator)
settings.ostr << separator;
}
if (children.size() > 1 || frame.expression_list_always_start_on_new_line)
settings.ostr << indent_str;
FormatStateStacked frame_nested = frame;
frame_nested.expression_list_always_start_on_new_line = false;
frame_nested.surround_each_list_element_with_parens = false;
if (frame.surround_each_list_element_with_parens)
settings.ostr << "(";
(*it)->formatImpl(settings, state, frame_nested);
if (frame.surround_each_list_element_with_parens)
settings.ostr << ")";
}
}
}
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