/// <summary>
/// Finds the rule instance matching the given enumeration. If no match is found, an "unfailable" rule is returned
/// always resulting in a pass.
/// </summary>
/// <param name="sourceRule">The source rule.</param>
/// <returns>ISourceRule.</returns>
public static ISourceRule FindRule(GraphQLSourceRule sourceRule)
{
switch (sourceRule)
{
case GraphQLSourceRule.IsStartOfNameGlyph:
return(IsStartOfNameGlyph.Instance);
case GraphQLSourceRule.IsControlGlyph:
return(IsControlGlyph.Instance);
case GraphQLSourceRule.IsCommentGlyph:
return(IsCommentGlyph.Instance);
case GraphQLSourceRule.IsStringDelimiterGlyph:
return(IsStringDelimiterGlyph.Instance);
case GraphQLSourceRule.IsStartOfNumberGlyph:
return(IsStartOfNumberGlyph.Instance);
default:
throw new ArgumentOutOfRangeException(nameof(sourceRule));
}
}
public void SourceText_CheckCursor(string sourceText, int offSet, GraphQLSourceRule rule, bool expectedValue)
{
var source = new SourceText(sourceText.AsMemory(), offSet);
Assert.AreEqual(expectedValue, source.CheckCursor(rule));
}