public ScriptParserRuntimeException(SourceSpan span, string message, List<LogMessage> parserMessages, Exception innerException) : base(span, message, innerException)
{
if (parserMessages == null) throw new ArgumentNullException(nameof(parserMessages));
ParserMessages = parserMessages;
}
public SourceSpan(ScribanSourceSpan span)
{
FileName = span.FileName;
Start = new TextPosition(span.Start);
End = new TextPosition(span.End);
}
public ScriptRuntimeException(SourceSpan span, string message, Exception innerException) : base(message, innerException)
{
Span = span;
}
public ScriptParserRuntimeException(SourceSpan span, string message, List<LogMessage> parserMessages) : this(span, message, parserMessages, null)
{
}
public static object ToObject(SourceSpan span, object value, Type destinationType)
{
if (destinationType == null) throw new ArgumentNullException(nameof(destinationType));
if (value == null)
{
if (destinationType == typeof (bool))
{
return false;
}
if (destinationType == typeof (string))
{
return string.Empty;
}
// TODO: Couldn't we get a converter method that support null to -> 0?
if (destinationType == typeof(int))
{
return (int)0;
}
else if (destinationType == typeof(double))
{
return (double)0.0;
}
else if (destinationType == typeof(float))
{
return (float)0.0f;
}
else if (destinationType == typeof(long))
{
return (long)0L;
}
return null;
}
var type = value.GetType();
var typeInfo = type.GetTypeInfo();
var destTypeInfo = destinationType.GetTypeInfo();
if (destTypeInfo.IsAssignableFrom(typeInfo))
{
return value;
}
if (destinationType == typeof (string))
{
return ToString(span, value);
}
if (typeInfo.IsPrimitive && destTypeInfo.IsPrimitive)
{
try
{
return Convert.ChangeType(value, destinationType, CultureInfo.InvariantCulture);
}
catch (FormatException ex)
{
throw new ScriptRuntimeException(span, $"Unable to convert type [{value.GetType()}] to [{destinationType}]", ex);
}
}
var customType = value as IScriptCustomType;
if (customType != null)
{
object result;
if (customType.TryConvertTo(destinationType, out result))
{
return result;
}
}
return value;
}
public ScriptRuntimeException(SourceSpan span, string message) : base(message)
{
Span = span;
}
public static double ToDouble(SourceSpan span, object value)
{
try
{
return Convert.ToDouble(value, CultureInfo.InvariantCulture);
}
catch (FormatException ex)
{
throw new ScriptRuntimeException(span, $"Unable to convert type [{value.GetType()}] to double", ex);
}
}
public static string ToString(SourceSpan span, object value)
{
if (value == null)
{
return string.Empty;
}
if (value is bool)
{
return ((bool) value) ? "true" : "false";
}
if (value is string)
{
return (string) value;
}
if (value is IScriptCustomFunction)
{
return "<function>";
}
// Dump a script object
var scriptObject = value as ScriptObject;
if (scriptObject != null)
{
var result = new StringBuilder();
result.Append("{");
bool isFirst = true;
foreach (var item in scriptObject)
{
if (!isFirst)
{
result.Append(", ");
}
var keyPair = (KeyValuePair<string, object>) item;
result.Append(keyPair.Key);
result.Append(": ");
result.Append(ToString(span, keyPair.Value));
isFirst = false;
}
result.Append("}");
return result.ToString();
}
var type = value.GetType();
if (type.GetTypeInfo().IsPrimitive)
{
try
{
return Convert.ToString(value, CultureInfo.InvariantCulture);
}
catch (FormatException ex)
{
throw new ScriptRuntimeException(span, $"Unable to convert value of type [{value.GetType()}] to string", ex);
}
}
// Dump an enumeration
var enumerable = value as IEnumerable;
if (enumerable != null)
{
var result = new StringBuilder();
result.Append("[");
bool isFirst = true;
foreach (var item in enumerable)
{
if (!isFirst)
{
result.Append(", ");
}
result.Append(ToString(span, item));
isFirst = false;
}
result.Append("]");
return result.ToString();
}
return value.ToString();
}
public LogMessage(ParserMessageType type, SourceSpan span, string message)
{
Type = type;
Span = span;
Message = message;
}
private void LogError(SourceSpan span, string text)
{
Log(new LogMessage(ParserMessageType.Error, span, text));
}
/// <summary>
/// Writes an object value to the current <see cref="Output"/>.
/// </summary>
/// <param name="span">The span of the object to render.</param>
/// <param name="textAsObject">The text as object.</param>
public void Write(SourceSpan span, object textAsObject)
{
if (textAsObject == null)
{
return;
}
var text = ScriptValueConverter.ToString(span, textAsObject);
Write(text);
}