private static bool ParseUse(Parser.State state, CoreNode coreNode)
{
if (state.IsErrorOccured())
{
return(false);
}
if (state.GetToken().Type != TokenType.CompilerDirective)
{
return(false);
}
if (state.GetToken().Value != "#use")
{
return(false);
}
state.GetNextNEToken();
Console.WriteLine("[P] #use directive found");
string usePath = TypeParser.ParsePath(state);
string useAlias = null;
if (state.IsErrorOccured())
{
return(false);
}
if (state.GetToken().Is(TokenType.Identifier, "as"))
{
state.GetNextNEToken();
useAlias = TypeParser.ParsePath(state);
if (state.IsErrorOccured())
{
return(false);
}
}
coreNode.UsesNodes.Add(new UseNode(usePath, useAlias));
return(true);
}
public static BlockNode ParseBlock(Parser.State state)
{
if (!state.GetToken().Is(TokenSubType.BraceCurlyLeft, "{"))
{
return(null);
}
var block = new BlockNode();
state.GetNextNEToken();
while (!state.GetToken().Is(TokenSubType.BraceCurlyRight, "}"))
{
block.Code.Add(ExpressionParser.Parse(state));
if (state.IsErrorOccured())
{
return(block);
}
}
state.GetNextNEToken();
return(block);
}
public static CoreNode Parse(Parser.State state)
{
var coreNode = new CoreNode();
while (!state.IsErrorOccured())
{
Console.WriteLine("[P] Core parsing iteration");
if (ParseUse(state, coreNode))
{
continue;
}
// if (ParseClass(state, coreNode)) { continue; }
if (ParseFunctionDeclaration(state, coreNode))
{
continue;
}
break;
}
Console.WriteLine("[P] nothing found...");
return(coreNode);
}
private static bool ParseFunctionDeclaration(Parser.State state, CoreNode coreNode)
{
state.Save();
if (state.GetToken().Type != TokenType.Identifier)
{
state.Restore();
return(false);
}
string name = state.GetTokenAndMoveNE().Value;
if (!state.GetToken().Is(TokenSubType.Colon, ":"))
{
state.ErrorCode = (uint)ErrorCodes.P_ColonBeforeTypeSpeceficationNotFound;
state.ErrorMessage =
$"Expected <Colon>(:) before function type specification " +
$"but <{state.GetToken().SubType}>({state.GetToken().Value}) were given";
return(false);
}
state.GetNextNEToken();
TypeNode type = TypeParser.Parse(state);
if (state.IsErrorOccured())
{
return(false);
}
/*
* // Only for class methods
* bool isInstance = state.GetToken().Is(TokenSubType.Dot, ".");
* bool isStatic = state.GetToken().Is(TokenSubType.Colon, ":");
*
* if (!(isStatic || isInstance))
* {
* state.ErrorCode = (uint)ErrorCodes.P_MethodTypeExpected;
* state.ErrorMessage =
* $"Expected '.' or ':' as type modifier, but " +
* $"<{state.GetToken().SubType.ToString()}> were found";
* return false;
* }
*/
FunctionNode function = new FunctionNode
{
Parent = coreNode,
Name = name,
Type = FunctionNode.EType.Static,
ReturnType = type
};
coreNode.FunctionNodes.Add(function);
if (!state.GetToken().Is(TokenSubType.BraceRoundLeft, "("))
{
state.ErrorCode = (uint)ErrorCodes.P_OpeningBracketExpected;
state.ErrorMessage =
$"Opening round bracket is expected before parameters list " +
$"but <{state.GetToken().SubType}> were given";
return(false);
}
state.GetNextNEToken();
FunctionParser.ParseParametersList(state, function);
if (state.IsErrorOccured())
{
return(true);
}
// FunctionParser.ParseTemplateValues(state, function);
function.Code = CodeParser.Parse(state);
return(!state.IsErrorOccured());
}
