void ParseStream(TokenStream reader)
{
while (true)
{
var exp = reader.MoveNextToken();
switch (exp.Type)
{
case TokenType.EndOfStream:
case TokenType.ArgumentSeparator:
case TokenType.ArgumentEnd:
return;
case TokenType.Operator:
PushOperator(exp.ToOperator());
break;
case TokenType.Identifier:
//Get variable/unit/constant
var id = exp.ToIdentifier();
var def = block.GetDefinition(id);
if (def == null)
throw new SemanticError(id, "Undefined variable: " + id.Name);
if (def is FuncDefinition)
{
FunctionCall func = ParseFunctionCall(reader);
PushImplicitMultiplication(func);
}
else if (def is VarDefinition)
PushImplicitMultiplication(id);
else if (def is ConstDefinition)
{
//Preserve position of identifier
var c = ((ConstDefinition)def).Value;
var val = c.WithRangeOf(id);
PushImplicitMultiplication(val);
}
else if (def is UnitDefinition)
PushImplicitMultiplication(((UnitDefinition)def).GetLiteral(exp.CodeRange));
else
throw new NotImplementedException();
break;
case TokenType.Int:
case TokenType.Double:
case TokenType.Boolean:
case TokenType.String:
PushLiteral(exp.ToLiteral());
break;
default:
throw new NotImplementedException();
}
}
}