public override bool VisitLabelStatement(LSLParser.LabelStatementContext context)
{
if (context == null || context.label_name == null)
{
throw LSLCodeValidatorInternalException.VisitContextInvalidState("VisitLabelStatement", true);
}
if (_scopingManager.LabelPreDefinedAnywhere(context.label_name.Text))
{
GenSyntaxError().RedefinedLabel(new LSLSourceCodeRange(context), context.label_name.Text);
return(false);
}
var ctx = new LSLLabelStatementNode(context);
var statementIndexInfo = _statementIndexStack.Peek();
ctx.ParentScopeId = statementIndexInfo.ScopeId;
ctx.StatementIndex = statementIndexInfo.Index;
_scopingManager.PreDefineLabel(context.label_name.Text, ctx);
return(base.VisitLabelStatement(context));
}
internal LSLLabelStatementNode(LSLParser.LabelStatementContext context)
{
LabelName = context.label_name.Text;
SourceRange = new LSLSourceCodeRange(context);
SourceRangeLabelName = new LSLSourceCodeRange(context.label_name);
SourceRangeLabelPrefix = new LSLSourceCodeRange(context.label_prefix);
SourceRangeSemicolon = new LSLSourceCodeRange(context.semi_colon);
SourceRangesAvailable = true;
}
/// <summary>
/// Exit a parse tree produced by <see cref="LSLParser.labelStatement"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitLabelStatement([NotNull] LSLParser.LabelStatementContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="LSLParser.labelStatement"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitLabelStatement([NotNull] LSLParser.LabelStatementContext context)
{
return(VisitChildren(context));
}
