/// <summary>
/// Parser for FunctionDefinition
/// </summary>
/// <returns>Parsed FunctionDefinition</returns>
public FunctionDefinition ParseFunctionDefinition()
{
FunctionDefinition functionDefinition = new FunctionDefinition();
//Parse FunctionId
CurrentToken = TokenStream.NextToken();
functionDefinition.SetIdentifier(CurrentToken.GetValue().ToString());
//Parse Formals
ParseFormals(functionDefinition);
//Parse Statements
while (TokenStream.HasNext() && TokenStream.Peek(1).GetValue().ToString() != "end")
{
functionDefinition.AddStatement(statementParser.ParseStatement());
}
//Skip end token
NextToken("end", "def function() statements end", "end");
return functionDefinition;
}
/// <summary>
/// Visit FuncBindAssignment
/// </summary>
/// <param name="assignment">FuncBindAssignment to check</param>
public override void Visit(FuncBindAssignment assignment)
{
//FuncBind is a function, so let checking do by FunctionDefinition visitor
FunctionDefinition function = new FunctionDefinition();
function.SetIdentifier(assignment.GetIdentifier());
foreach (String identifier in assignment.GetIdentifiers())
{
Formal formal = new Formal();
formal.SetIdentifier(identifier);
function.AddFormal(formal);
}
function.AddStatement(assignment.GetStatement());
//Check this new function
function.AcceptVisitor(this);
//Add to SymbolTable
SymbolTable.AddFunctionDefinition(function);
}