protected int RunLexerUntil(int stopAt)
{
if (_lexer.InputPosition < stopAt)
{
int startAt = _lexer.InputPosition;
_tokens.ClearSpace(startAt, stopAt - startAt);
_nestedTokens.ClearSpace(startAt, stopAt - startAt);
for (Maybe <Token> t_; _lexer.InputPosition < stopAt && (t_ = _lexer.NextToken()).HasValue;)
{
Token t = t_.Value;
if (t.EndIndex > stopAt)
{
_tokens.ClearSpace(t.StartIndex, t.Length);
_nestedTokens.ClearSpace(t.StartIndex, t.Length);
}
if (t.Children != null)
{
foreach (var ct in t.Children)
{
_nestedTokens[ct.StartIndex] = new EditorToken(ct.TypeInt, ct.Length, ct.Value);
}
}
if (!IsWhitespace(t.TypeInt))
{
var et = new EditorToken(t.TypeInt, t.Length, t.Value);
_tokens[t.StartIndex] = StoreLexerError(et);
}
}
if (_lexerError != null && _tokens.Count != 0)
{
_tokens.Last = StoreLexerError(_tokens.Last);
}
}
return(_lexer.InputPosition);
}
public void TestClearSpace()
{
for (int iter = 0; iter < 10; iter++)
{
int i1 = MathEx.Square(_r.Next(50)) + 1; // e.g. 100
int i0 = _r.Next(i1); // e.g. 50
int i2 = i1 + MathEx.Square(_r.Next(50)) + 1; // e.g. 100
int i3 = i2 + _r.Next(2500); // e.g. 1000
SparseAList <int> list = new SparseAList <int>();
list.ClearSpace(0, i1);
Assert.AreEqual(i1, list.Count);
Assert.AreEqual(0, list.GetRealItemCount());
Assert.AreEqual(0, list[i1 - 1]);
if (_testExceptions)
{
Assert.Throws <ArgumentOutOfRangeException>(() => { var _ = list[i1]; });
Assert.Throws <ArgumentOutOfRangeException>(() => { list.ClearSpace(0, -1); });
Assert.Throws <ArgumentOutOfRangeException>(() => { list.ClearSpace(-1, 10); });
}
list.ClearSpace(i0, i2 - i0);
Assert.AreEqual(i2, list.Count);
Assert.AreEqual(0, list.GetRealItemCount());
for (int i = i0; i < i2; i++)
{
list[i] = i;
}
list.ClearSpace(i1, i3 - i1);
Assert.AreEqual(i3, list.Count);
Assert.AreEqual(i1 - i0, list.GetRealItemCount());
list.ClearSpace(i0 + 1, i1 - (i0 + 1));
Assert.AreEqual(i3, list.Count);
Assert.AreEqual(1, list.GetRealItemCount());
list.ClearSpace(0, i0 + 1);
Assert.AreEqual(i3, list.Count);
Assert.AreEqual(0, list.GetRealItemCount());
}
}