public void printOn(TextWriter stream)
{
stream.WriteLine("");
stream.Write(Environment.QualifiedName);
stream.Write(": ");
switch (Severity)
{
case Severity.Ignore:
stream.Write("Note: [");
break;
case Severity.Warning:
stream.Write("Warning: [");
break;
case Severity.Error:
stream.Write("Error: [");
break;
case Severity.FatalError:
stream.Write("Fatal error: [");
break;
}
stream.Write(ErrorSpan.ToString());
stream.Write("] ");
stream.Write(ErrorDescription);
if (errorCode > 0)
{
stream.Write(" (error code = " + ErrorCode);
stream.Write(")");
}
stream.WriteLine();
}
private static string FormatErrors(string message, ErrorSpan span, ReadOnlyMemory <char> resource, string?newLine)
{
var sb = new StringBuilder();
var errContext = resource.Slice(span.StartSpan, span.EndSpan - span.StartSpan).ToString();
var lines = new List <ReadOnlyMemory <char> >(5);
var currLineOffset = 0;
var lastStart = 0;
for (var i = 0; i < span.StartMark - span.StartSpan; i++)
{
switch (errContext[i])
{
// Reset current line so that mark aligns with the reported error
// We cheat here a bit, since we both `\r\n` and `\n` end with '\n'
case '\n':
if (i > 0 && errContext[i - 1] == '\r')
{
lines.Add(resource.Slice(lastStart, currLineOffset - 1));
}
else
{
lines.Add(resource.Slice(lastStart, currLineOffset));
}
lastStart = currLineOffset + 1;
currLineOffset = 0;
break;
default:
currLineOffset++;
break;
}
}
lines.Add(resource.Slice(lastStart, resource.Length - lastStart));
var lastLine = $"{span.Row + lines.Count - 1}".Length;
for (var index = 0; index < lines.Count; index++)
{
var line = lines[index];
sb.Append(newLine ?? Environment.NewLine).Append(' ').Append($"{span.Row + index}".PadLeft(lastLine))
.Append(" |").Append(line);
}
sb.Append(newLine ?? Environment.NewLine)
.Append(' ', currLineOffset + lastLine + 3)
.Append('^', span.EndMark - span.StartMark)
.Append($" {message}");
return(sb.ToString());
}
private static string FormatErrors(string message, ErrorSpan span, ReadOnlyMemory <char> resource)
{
var sb = new StringBuilder();
var row = $" {span.Row} ";
var errContext = resource.Slice(span.StartSpan, span.EndSpan - span.StartSpan).ToString();
sb.Append(row).Append('|')
.AppendLine(errContext);
sb.Append(' ', row.Length).Append('|')
.Append(' ', span.StartMark - span.StartSpan - 1).Append('^', span.EndMark - span.StartMark)
.AppendLine($" {message}");
return(sb.ToString());
}