/// <summary>
/// Writes the value expression to the buffer.
/// </summary>
/// <param name="buffer">The buffer</param>
/// <param name="valueExpression">The value expression</param>
private static void WriteValueExpressionToBuffer(StringBuilder buffer, JTokenExpression valueExpression)
{
ExpressionSerializer.ValidateValueExpression(valueExpression: valueExpression);
var value = ExpressionSerializer.GetValueFromValueExpression(valueExpression: valueExpression);
switch (value.Type)
{
case JTokenType.Integer:
// Note(majastrz): Integers are serialized as-is
buffer.Append(value: value);
return;
case JTokenType.String:
WriteEscapedStringLiteral(buffer, value.ToString());
return;
default:
// Note(majastrz): JTokenValue can only be created with string or int value.
throw new InvalidOperationException($"JTokenExpression has a value of unexpected type '{value.Type}'.");
}
}
/// <summary>
/// Validates the specified value expression. Does not perform recursive validation.
/// </summary>
/// <param name="valueExpression">The value expression</param>
private static void ValidateValueExpression(JTokenExpression valueExpression)
{
ExpressionSerializer.ValidateExpression(expression: valueExpression);
}
/// <summary>
/// Gets a value from the value expression.
/// </summary>
/// <param name="valueExpression">The value expression</param>
private static JToken GetValueFromValueExpression(JTokenExpression valueExpression)
{
// Note(majastrz): EvaluateExpression on JTokenExpression just returns the value and does not use the context at all.
// The constructor of JTokenExpression does not allow you to create one with a null value, so we don't really need to check
return(valueExpression.Value);
}
