public override Symbol VisitFunctionCall([NotNull] FunctionCallContext context)
{
var identifier = context.IDENTIFIER().GetText();
var functionArguments = context.functionArguments();
var functionDefinition = callStack.ResolveFunction(identifier);
var functionBody = functionDefinition.Body.statementBlock();
seleniumLogger.Log($"Calling function {identifier}", SeleniumScriptLogLevel.InterpreterDetails);
Variable[] argumentVariables = null;
if (functionDefinition.Parameters.Count > 0 && (context.functionArguments() == null || context.functionArguments().data().Length != functionDefinition.Parameters.Count))
{
throw new SeleniumScriptVisitorException(
$"Error calling function {identifier}, argument list does not match parameter definition\n" +
$"Expecting: {string.Join(", ", functionDefinition.Parameters.Select(x => x.Value + " " + x.Key))}"
);
}
else if (functionDefinition.Parameters.Count > 0)
{
argumentVariables = functionArguments.Accept(this).AsArray.Select((x, i) => new Variable(functionDefinition.Parameters.ElementAt(i).Key, functionDefinition.Parameters.ElementAt(i).Value, x)).ToArray();
}
callStack.Push(StackFrameScope.Method);
if (argumentVariables != null)
{
foreach (var variable in argumentVariables)
{
callStack.Current.AddVariable(variable.Name, variable.ReturnType, variable.AsString);
}
}
foreach (var statement in functionBody.statement())
{
if (statement.functionReturn() != null)
{
var data = statement.functionReturn().data().Accept(this).Value;
callStack.Pop();
return(new Symbol(string.Empty, functionDefinition.ReturnType, data));
}
statement.Accept(this);
}
callStack.Pop();
return(null);
}
public void VisitFunctionExpression(FunctionCallContext context)
{
var name = context.IDENTIFIER().GetText();
if (!Enum.TryParse(name, out RemoteFunction id))
{
throw new Exception($"Could not find remote function with the name of {name}");
}
var paramcount = 0;
if (context.functionparam() != null)
{
foreach (var e in context.functionparam().expression())
{
VisitExpression(e);
builder.OutputOperation(Operation.OpPush);
paramcount++;
}
}
builder.OutputOperation(Operation.OpVal, paramcount);
builder.OutputOperation(Operation.OpFunc, (int)id);
}
