public FunctionDeclarationNode IsFunctionDeclaration(GeneralDeclarationNode generalDecla)
{
StackContext.Context.CanDeclareReturn = true;
var position = new Token {
Row = _parser.CurrentToken.Row, Column = _parser.CurrentToken.Column
};
var functionNode = new FunctionDeclarationNode {
Identifier = generalDecla, Position = position
};
if (!_parser.Utilities.CompareTokenType(TokenType.OpenParenthesis))
{
throw new Exception("Open parenthesis expected at row: " + _parser.CurrentToken.Row + " , column: " + _parser.CurrentToken.Column);
}
_parser.Utilities.NextToken();
List <GeneralDeclarationNode> parameters = new List <GeneralDeclarationNode>();
ParameterList(parameters);
functionNode.Parameters = parameters;
if (!_parser.Utilities.CompareTokenType(TokenType.CloseParenthesis))
{
throw new Exception("Close parenthesis expected at row: " + _parser.CurrentToken.Row + " , column: " + _parser.CurrentToken.Column);
}
_parser.Utilities.NextToken();
if (_parser.Utilities.CompareTokenType(TokenType.OpenCurlyBracket))
{
_parser.Utilities.NextToken();
var sentences = _parser.ListOfSpecialSentences();
functionNode.Sentences = sentences;
}
if (_parser.Utilities.CompareTokenType(TokenType.CloseCurlyBracket))
{
_parser.Utilities.NextToken();
}
else
{
throw new Exception("Close function body symbol expected at row: " + _parser.CurrentToken.Row + " , column: " + _parser.CurrentToken.Column);
}
functionNode.Position = _parser.CurrentToken;
StackContext.Context.CanDeclareReturn = false;
return(functionNode);
}
