private static void WriteNestedExpression(this IndentedTextWriter writer, int parentPrecedence, BoundExpression expression)
{
if (expression is BoundUnaryExpression unary)
{
writer.WriteNestedExpression(parentPrecedence, SyntaxFacts.GetUnaryOperatorPrecedence(unary.Op.Syntaxkind), unary);
}
else if (expression is BoundBinaryExpression binary)
{
writer.WriteNestedExpression(parentPrecedence, SyntaxFacts.GetBinaryOperatorPrecedence(binary.Op.SyntaxKind), binary);
}
else
{
expression.WriteTo(writer);
}
}
private static void WriteNestedExpression(this IndentedTextWriter writer, int parentPrecedence, int currentPrecedence, BoundExpression expression)
{
var needsParenthesis = parentPrecedence >= currentPrecedence;
if (needsParenthesis)
{
writer.WritePunctuation("(");
}
expression.WriteTo(writer);
if (needsParenthesis)
{
writer.WritePunctuation(")");
}
}
public BoundUnaryExpression(BoundUnaryOperator op, BoundExpression operand)
{
this.op = op;
Operand = operand;
}