public FactorNode Factor()
{
var factor = new FactorNode();
if (token.value == "not")
{
factor.not = true;
Match(TokenTypes.ID, "not");
}
if (token.type == TokenTypes.ID)
{
factor.value = token.value;
factor.type = TokenTypes.ID;
Match(TokenTypes.ID);
if (token.type == TokenTypes.LPAR)
{
Match(TokenTypes.LPAR);
bool end;
do
{
factor.expressionList.Add(Expression());
end = token.value == ")";
if (!end)
{
Match(TokenTypes.COMMA);
}
} while (!end);
}
else if (token.type == TokenTypes.LBRACKET)
{
Match(TokenTypes.LBRACKET);
factor.arrayExpression = Expression();
Match(TokenTypes.RBRACKET);
}
}
else if (token.type == TokenTypes.NUM)
{
factor.value = token.value;
Match(TokenTypes.NUM);
factor.type = TokenTypes.NUM;
}
else if (token.type == TokenTypes.LPAR)
{
Match(TokenTypes.LPAR);
factor.parExpression = Expression();
Match(TokenTypes.RPAR);
}
return(factor);
}
private string Factor(FactorNode node)
{
string output = "";
//needs to address various froms of NUM
if (node.type == TokenTypes.ID)
{
output += "ldloc." + program.Declarations.variableList.FindIndex(x => node.value == x.variableName) + "\n";
}
if (node.type == TokenTypes.NUM)
{
output += "ldc.i4." + node.value + "\n";
}
if (node.not)
{
output += "not\n";
}
return(output);
}