//Pop index operator operand
public override void ExitIndexOp([NotNull] CmanParser.IndexOpContext context)
{
ASTIndexOpNode indexOp = (ASTIndexOpNode)_nodes.ElementAt(2);
indexOp.Index = (IASTExprNode)_nodes.Pop();
indexOp.Expression = (IASTExprNode)_nodes.Pop();
}
private void CheckIndexOp(ASTIndexOpNode indexOpNode)
{
if (!(indexOpNode.Expression is ASTIndexOpNode) &&
!(indexOpNode.Expression is ASTVariableNode) &&
!(indexOpNode.Expression is ASTCallStatementNode)
)
{
_messages.Add(new MessageRecord(
MsgCode.RvalueIndexing,
indexOpNode.SourcePath,
indexOpNode.StartLine,
indexOpNode.StartPos,
null
));
}
else
{
if (indexOpNode.Expression is ASTIndexOpNode indexOp)
{
CheckIndexOp(indexOp);
}
if (indexOpNode.Expression is ASTVariableNode varNode)
{
CheckVariable(varNode);
}
if (indexOpNode.Expression is ASTCallStatementNode callNode)
{
CheckSubCall(callNode, true);
}
}
//TODO: null index check
CheckExpression(indexOpNode.Index);
}
//TODO: пересмотреть
private void BuildIndexOp(ASTIndexOpNode indexOp)
{
if (indexOp.Expression is ASTIndexOpNode subIndexOp)
{
//get sub object
BuildIndexOp(subIndexOp);
//get index
BuildExpression(subIndexOp.Index);
_emitter.Box();
//get item
_emitter.VirtualCall(typeof(Dictionary <object, object>), "get_Item", new Type[] { typeof(object) });
}
if (indexOp.Expression is ASTVariableNode varNode)
{
//get root object
BuildVariable(varNode);
}
}
