void UnaryDispatch(string op, Expression e)
{
var ue = (UnaryExpression)e;
bool needsSpace = ExpressionPrecedence.TokenizerConfusable(ue.NodeType, ue.Operand.NodeType);
Sink(op + (needsSpace ? " " : ""), e);
NestExpression(ue.NodeType, ue.Operand);
}
void NestExpression(ExpressionType?parentType, Expression child, bool parensIfEqualRank = false)
{
int parentRank = parentType == null ? 0 : ExpressionPrecedence.Rank(parentType.Value);
bool needsParens = parentRank > 0 &&
(parensIfEqualRank ? parentRank - 1 : parentRank) < ExpressionPrecedence.Rank(child.NodeType);
if (needsParens)
{
sink(ExprTextPart.TextOnly("("), Depth);
}
RawChildDispatch(child);
if (needsParens)
{
sink(ExprTextPart.TextOnly(")"), Depth);
}
}
