protected internal static Token NextTokenAssert(Lexer lexer, HappyTokenKind expectedHappyTokenKind, string expectedText)
{
Token t = lexer.NextToken();
Assert.AreEqual(expectedHappyTokenKind, t.HappyTokenKind, "Token Text: {0}", t.Text);
Assert.AreEqual(expectedText, t.Text);
return t;
}
internal Token(HappySourceLocation loc, HappyTokenKind happyTokenKind, string text)
{
this.HappyTokenKind = happyTokenKind;
this.Location = loc;
this.Text = text;
}
protected internal static void NextTokenAssert(Lexer lexer, HappyTokenKind expectedHappyTokenKind)
{
Token t = lexer.NextToken();
Assert.AreEqual(expectedHappyTokenKind, t.HappyTokenKind, "Token Text: {0}", t.Text);
}
Token Expect(HappyTokenKind tokenKind, string whatWasExpected)
{
Token next = _lexer.NextToken();
if(next.HappyTokenKind == tokenKind)
return next;
_errorCollector.Expected(whatWasExpected, next);
throw new AbortParseException(next.Location);
}
bool EatNextTokenIf(HappyTokenKind tokenKind, out HappySourceLocation location)
{
if (_lexer.PeekToken().HappyTokenKind == tokenKind)
{
location = _lexer.NextToken().Location;
return true;
}
location = HappySourceLocation.None;
return false;
}
bool EatNextTokenIf(HappyTokenKind tokenKind)
{
if (_lexer.PeekToken().HappyTokenKind == tokenKind)
{
_lexer.NextToken();
return true;
}
return false;
}
Token AssertExpect(HappyTokenKind tokenKind)
{
Token next = _lexer.NextToken();
if (next.HappyTokenKind != tokenKind)
throw new InternalSourceException(next.Location, "Assertion Failed: expected HappyTokenKind." + tokenKind + " but found HappyTokenKind." + next.HappyTokenKind);
return next;
}
