static void DefineFunctionInput(UndefinedFunctionTreeNode fDefinition, string expressionInput, CalculationContext context)
{
string[] parameterNames = new string[fDefinition.Parameters.Length];
for (int i = 0; i < parameterNames.Length; ++i)
{
if (fDefinition.Parameters[i] is UndefinedVariableTreeNode vTreeNode)
{
parameterNames[i] = vTreeNode.Name;
}
else
{
throw new Exception("Invalid function definition");
}
}
Token[] tokens = lexer.Tokenize(expressionInput);
TreeNode tree = parser.Construct(tokens);
FinishedFunction function = linker.BuildFunction(tree, context, parameterNames);
context.FunctionTable.AssignItem(fDefinition.Name, function);
}