public void TheConstructorShouldSetValue()
{
// Arrange
var token = new Token("foo", TokenType.Identifier, 0);
// Act
var error = new UnexpectedTokenError(token);
// Assert
Assert.Equal(token.Value, error.Value);
}
/// <summary>
/// Raises an error on an unexepcted token
/// </summary>
/// <param name="stem">The size of the generation's stem</param>
private void OnUnexpectedToken(int stem)
{
// build the list of expected terminals
List <Symbol> expected = new List <Symbol>();
GSSGeneration genData = gss.GetGeneration();
for (int i = 0; i != genData.Count; i++)
{
LRExpected expectedOnHead = parserAutomaton.GetExpected(gss.GetRepresentedState(i + genData.Start), lexer.Terminals);
// register the terminals for shift actions
foreach (Symbol terminal in expectedOnHead.Shifts)
{
if (!expected.Contains(terminal))
{
expected.Add(terminal);
}
}
if (i < stem)
{
// the state was in the stem, also look for reductions
foreach (Symbol terminal in expectedOnHead.Reductions)
{
if (!expected.Contains(terminal) && CheckIsExpected(i + genData.Start, terminal))
{
expected.Add(terminal);
}
}
}
}
// register the error
UnexpectedTokenError error = new UnexpectedTokenError(lexer.tokens[nextToken.Index], new ROList <Symbol>(expected));
allErrors.Add(error);
#if !NETSTANDARD1_0
if (ModeDebug)
{
Console.WriteLine("==== RNGLR parsing error:");
Console.Write("\t");
Console.WriteLine(error);
TextContext context = lexer.Input.GetContext(error.Position);
Console.Write("\t");
Console.WriteLine(context.Content);
Console.Write("\t");
Console.WriteLine(context.Pointer);
gss.Print();
}
#endif
}
