/// <summary>
/// Formats <see cref="SyntaxTreeNode"/> into string representation.
/// </summary>
/// <param name="syntaxTree">An valid syntax tree.</param>
/// <param name="checkedScope">True to assume all arithmetic and conversion operation is checked for overflows.</param>
/// <returns>C# formatted expression.</returns>
public static string Format(this SyntaxTreeNode syntaxTree, bool checkedScope = DEFAULT_CHECKED_SCOPE)
{
return(CSharpSyntaxTreeFormatter.Format(syntaxTree, checkedScope));
}
private static void RenderConstant(ConstantExpression expression, StringBuilder builder)
{
if (expression == null)
{
throw new ArgumentException("expression");
}
if (builder == null)
{
throw new ArgumentException("builder");
}
if (expression.Value == null)
{
if (expression.Type == typeof(object))
{
builder.Append("null");
return;
}
else
{
builder.Append("default(");
RenderType(expression.Type, builder);
builder.Append(")");
return;
}
}
var strValue = Convert.ToString(expression.Value, Constants.DefaultFormatProvider) ?? string.Empty;
if (expression.Type == typeof(string))
{
CSharpSyntaxTreeFormatter.RenderTextLiteral(strValue, builder, isChar: false);
}
else if (expression.Type == typeof(char))
{
CSharpSyntaxTreeFormatter.RenderTextLiteral(strValue, builder, isChar: true);
}
else if (expression.Type == typeof(Type))
{
builder.Append("typeof(");
RenderType((Type)expression.Value, builder);
builder.Append(")");
}
else if (expression.Type == typeof(ushort) || expression.Type == typeof(uint))
{
builder.Append(strValue).Append("u");
}
else if (expression.Type == typeof(ulong))
{
builder.Append(strValue).Append("ul");
}
else if (expression.Type == typeof(long))
{
builder.Append(strValue).Append("l");
}
else if (expression.Type == typeof(float) || expression.Type == typeof(double))
{
var is32Bit = expression.Type == typeof(float);
var doubleValue = Convert.ToDouble(expression.Value, Constants.DefaultFormatProvider);
if (double.IsPositiveInfinity(doubleValue))
{
builder.Append(is32Bit ? "System.Single.PositiveInfinity" : "System.Double.PositiveInfinity");
}
if (double.IsNegativeInfinity(doubleValue))
{
builder.Append(is32Bit ? "System.Single.NegativeInfinity" : "System.Double.NegativeInfinity");
}
if (double.IsNaN(doubleValue))
{
builder.Append(is32Bit ? "System.Single.NaN" : "System.Double.NaN");
}
else
{
builder.Append(doubleValue.ToString("R", Constants.DefaultFormatProvider));
}
builder.Append(is32Bit ? "f" : "d");
}
else if (expression.Type == typeof(decimal))
{
builder.Append(strValue).Append("m");
}
else if (expression.Type == typeof(bool))
{
builder.Append(strValue.ToLowerInvariant());
}
else if (expression.Type == typeof(byte) || expression.Type == typeof(sbyte) || expression.Type == typeof(short) || expression.Type == typeof(int))
{
builder.Append(strValue);
}
else
{
throw new InvalidOperationException(string.Format(Properties.Resources.EXCEPTION_BIND_INVALIDCONSTANTEXPRESSION, expression.Type));
}
}
