public void AddCode(Expression expression)
{
expression.OperatorsHint.Clear();
int startIndex = Operations.Count;
_sources.Push(expression);
switch (expression)
{
case Command x: Commands.GenerateCode(x, this); break;
case FunctionCall x: Creation.Functions.GenerateCode(x, this); break;
case FunctionHeader x: Creation.Functions.GenerateCode(x, this); break;
case IfHeader x: Conditional.GenerateCode(x, this); break;
case LiteralArrayGet x: Literals.GenerateCode(x, this); break;
case LiteralGet x: Literals.GenerateCode(x, this); break;
case LoopHeader x: Conditional.GenerateCode(x, this); break;
case OperatorCall x: Creation.Functions.GenerateCode(x, this); break;
case ReturnE x: Commands.GenerateCode(x, this); break;
case VariableAssignment x: Variables.GenerateCode(x, this); break;
case VariableReference x: Variables.GenerateCode(x, this); break;
case Block block: Blocks.GenerateCode(block, this); break;
case Indexer indexer: Variables.GenerateCode(indexer, this); break;
case ElseHeader elseHeader: Conditional.GenerateCode(elseHeader, this); break;
case ElseIfHeader elseIfHeader: Conditional.GenerateCode(elseIfHeader, this); break;
case Group group: Literals.GenerateCode(group, this); break;
case MainHeader _: break;
case null: throw new ArgumentNullException(nameof(expression));
default:
throw new NotSupportedException(
$"Unsupported expression type: {expression.GetType()}");
}
_sources.Pop();
if (startIndex == Operations.Count)
{
// No operations have been added, there is no point
// trying to link test commands
return;
}
int endIndex = Operations.Count - 1;
OpDebugInfo firstOp = DebugInfo[startIndex];
OpDebugInfo lastOp = DebugInfo[endIndex];
if (expression.TestsHint != null)
{
foreach (TestCommand command in expression.TestsHint)
{
if (command.IsPreOp && firstOp != null)
{
firstOp.AddTest(command);
}
else if (!command.IsPreOp && lastOp != null)
{
lastOp.AddTest(command);
}
}
}
}