public void Sequence3TokenReportsCorrectErrorPosition()
{
var p = Parse.Sequence(Token.EqualTo('1'), Token.EqualTo('w'), Token.EqualTo('U'))
.Select(t => new [] { t.Item1, t.Item2, t.Item3 });
AssertParser.FailsAt(p, "1w1g", 2);
}
public void TokenChainFailWithMultiTokenOperator()
{
// Addition is represented with operator '++'
// If we only have one '+', ensure we get error
var nPlusPlusN = Parse.Chain(
Token.EqualTo('+').IgnoreThen(Token.EqualTo('+')),
Token.EqualTo('1').Value(1),
(opr, val1, val2) => val1 + val2);
AssertParser.FailsAt(nPlusPlusN, "1+1", 2);
}
public void ChainFailWithMultiTokenOperator()
{
// Addition is represented with operator '++'
// If we only have one '+', ensure we get error
var nPlusPlusN = Parse.Chain(
Character.EqualTo('+').IgnoreThen(Character.EqualTo('+')),
Numerics.IntegerInt32,
(opr, val1, val2) => val1 + val2);
AssertParser.FailsAt(nPlusPlusN, "1+1", 2);
}
public void Sequence3ReportsCorrectErrorPosition()
{
var p = Parse.Sequence(Character.Digit, Character.AnyChar, Character.Upper);
AssertParser.FailsAt(Span.MatchedBy(p), "1w1g", 2);
}