private void IdList(LexemeSet stopSet)
{
bool complete;
do
{
// we expect an identifier
if (CheckOrSkip(LexemeSet.From(LexemeType.Identifier), stopSet + LexemeType.Semicolon + LexemeType.Comma))
{
// we got an identifier add it to the symbol table
// adding a duplicate symbol outputs a warning, this is really semantic analysis
// but we do that in this phase for convinience
symbolTable.Declare(currentLexeme.Value.ToString());
NextLexeme();
}
// move past the training comma or the terminating semi colon
CheckOrSkip(LexemeSet.From(LexemeType.Semicolon, LexemeType.Comma), stopSet + LexemeType.Identifier + LexemeType.Comma);
// were are complete if the next token _isn't_ a comma or another identifier
complete = currentLexeme.Type is not(LexemeType.Comma or LexemeType.Identifier);
// if we are on a comma step over it
StepOverCurrentLexemeIfItsA(LexemeType.Comma);
} while (!complete);
StepOverCurrentLexemeIfItsA(LexemeType.Semicolon);
}
