public static void ParseParametersList(Parser.State state, FunctionNode function)
{
while (!state.GetToken().Is(TokenSubType.BraceRoundRight, ")"))
{
if (state.GetToken().Type != TokenType.Identifier)
{
state.ErrorCode = (uint)ErrorCodes.P_IdentifierExpected;
state.ErrorMessage =
$"Expected parameter name(<identifier>) " +
$"but <{state.GetToken().SubType}>({state.GetToken().Value}) " +
$"were given";
return;
}
var parameterName = state.GetTokenAndMoveNE().Value;
if (!state.GetToken().Is(TokenSubType.Colon, ":"))
{
state.ErrorCode = (uint)ErrorCodes.P_ColonBeforeTypeSpeceficationNotFound;
state.ErrorMessage =
$"Expected <Colon>(:) before parameter type specification " +
$"but <{state.GetToken().SubType}>({state.GetToken().Value}) were given";
return;
}
state.GetNextNEToken();
var parameterType = TypeParser.Parse(state);
function.Parameters.Add(new VariableNode
{
Name = parameterName,
Type = parameterType
});
if (state.GetToken().SubType == TokenSubType.Comma)
{
state.GetNextNEToken();
}
}
state.GetNextNEToken();
}
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());
}