/// <summary>
/// Parse an TextExpression
/// </summary>
/// <returns>Parsed TextExpression</returns>
public TextExpression ParseTextExpression()
{
TextExpression textExpression = new TextExpression();
CurrentToken = TokenStream.NextToken();
textExpression.SetText(CurrentToken.GetValue().ToString());
return textExpression;
}
public virtual void Visit(TextExpression expression)
{
VisitSubNodes(expression);
}
/// <summary>
/// Visit FunctionDefinition to check declarations
/// </summary>
/// <param name="functionDefinition">FunctionDefinition to check</param>
public override void Visit(FunctionDefinition functionDefinition)
{
CreateChildSymbolTable();
//Check Formals
foreach(Formal formal in functionDefinition.GetFormals())
{
//Add variable, but with nullvalue, because value is undefined in definition
TextExpression textExpression = new TextExpression();
SymbolTable.AddVariableDefinition(formal.GetIdentifier(), textExpression);
}
//Check Statements of function
foreach (Statement statement in functionDefinition.GetStatements())
{
statement.AcceptVisitor(this);
}
MoveToParentSymbolTable();
}
