/// Author: Max Hamulyak
/// Date: 29-06-2015
/// <summary>
/// Parses the declaration of an function, so it can be reused througout the program.
/// </summary>
/// <returns>The function declaration.</returns>
/// <param name="tokensToParse">Tokens to parse.</param>
/// <param name="currentLine">Current line.</param>
protected virtual FunctionBlock ParseFunctionDeclaration(List<Token> tokensToParse, int currentLine)
{
List<Token> tokensAtCurrentLine = tokensToParse.Where (x => x.Position.Line == currentLine).ToList();
tokensToParse.RemoveAll (x => x.Position.Line == currentLine);
string functionName = ParseFunctionHeader(tokensAtCurrentLine,currentLine);
FunctionBlock functionBlock = new FunctionBlock (functionName);
List<Token> childTokens = BuildCodeBlock (tokensToParse, currentLine);
if (childTokens.Count > 0) {
int last = childTokens.Last ().Position.Line;
Token lastToken = tokensToParse.First (x => x.Position.Line == last + incrementIndex);
EndOfBlockTokenCorrect (lastToken, "end;", ETokenType.FUNCTIONDeclaration);
RemoveTokensAtLine (tokensToParse, last + incrementIndex);
List<ICodeBlock> childeren = BuildCommandBlok (childTokens, currentLine + 1, last + 1);
if (childeren.Count > 0) {
foreach (var item in childeren) {
functionBlock.addChild (item);
}
functionBlock.LineNumber = currentLine;
return functionBlock;
} else {
throw EmptyCodeBlock (currentLine, ETokenType.FUNCTIONDeclaration);
}
} else {
throw EmptyCodeBlock (currentLine, ETokenType.FUNCTIONDeclaration);
}
}
/// Author: Bert van Montfort
/// <summary>
/// Adds a FunctionBlock with key name to the FunctionBlockList
/// </summary>
/// <param name="name">Key used to later retrieve the added FunctionBlock</param>
/// <param name="function">The FunctionBlock to be added.</param>
public static void addFunction(string name, FunctionBlock function)
{
functions.Add (name, function);
}
