/// <exception cref="ArgumentNullException"><paramref name="context" /> is <c>null</c>.</exception>
internal LSLStateScopeNode(LSLParser.DefinedStateContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
StateName = context.state_name.Text;
SourceRange = new LSLSourceCodeRange(context);
SourceRangeOpenBrace = new LSLSourceCodeRange(context.open_brace);
SourceRangeCloseBrace = new LSLSourceCodeRange(context.close_brace);
SourceRangeStateName = new LSLSourceCodeRange(context.state_name);
SourceRangeStateKeyword = new LSLSourceCodeRange(context.state_keyword);
SourceRangesAvailable = true;
}
/// <exception cref="ArgumentNullException"><paramref name="eventHandlers" /> is <c>null</c>.</exception>
internal LSLStateScopeNode(LSLParser.DefinedStateContext context, IEnumerable <LSLEventHandlerNode> eventHandlers)
: this(context)
{
if (eventHandlers == null)
{
throw new ArgumentNullException("eventHandlers");
}
StateName = context.state_name.Text;
foreach (var lslEventHandlerNode in eventHandlers)
{
Add(lslEventHandlerNode);
}
SourceRange = new LSLSourceCodeRange(context);
SourceRangeOpenBrace = new LSLSourceCodeRange(context.open_brace);
SourceRangeCloseBrace = new LSLSourceCodeRange(context.close_brace);
SourceRangeStateName = new LSLSourceCodeRange(context.state_name);
SourceRangeStateKeyword = new LSLSourceCodeRange(context.state_keyword);
SourceRangesAvailable = true;
}
public override bool VisitDefinedState(LSLParser.DefinedStateContext context)
{
if (context == null || Utility.AnyNull(context.children, context.state_name))
{
throw LSLCodeValidatorInternalException.VisitContextInvalidState("VisitDefinedState", true);
}
if (context.state_name.Text == "default")
{
GenSyntaxError().RedefinedDefaultState(
new LSLSourceCodeRange(context.state_name));
return(false);
}
if (_scopingManager.StatePreDefined(context.state_name.Text))
{
GenSyntaxError().RedefinedStateName(
new LSLSourceCodeRange(context.state_name),
context.state_name.Text);
return(false);
}
_scopingManager.PreDefineState(context.state_name.Text);
if (!context.eventHandler().Any())
{
GenSyntaxError().StateHasNoEventHandlers(
new LSLSourceCodeRange(context.state_name),
context.state_name.Text);
return(false);
}
var eventHandlerNames = new HashSet <string>();
foreach (var ctx in context.eventHandler())
{
if (ctx.handler_name == null)
{
throw LSLCodeValidatorInternalException
.VisitContextInInvalidState("VisitDefinedState",
typeof(LSLParser.EventHandlerContext), true);
}
if (eventHandlerNames.Contains(ctx.handler_name.Text))
{
GenSyntaxError().RedefinedEventHandler(
new LSLSourceCodeRange(ctx.handler_name),
ctx.handler_name.Text,
context.state_name.Text);
return(false);
}
eventHandlerNames.Add(ctx.handler_name.Text);
}
return(true);
}
/// <summary>
/// Exit a parse tree produced by <see cref="LSLParser.definedState"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitDefinedState([NotNull] LSLParser.DefinedStateContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="LSLParser.definedState"/>.
/// <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 VisitDefinedState([NotNull] LSLParser.DefinedStateContext context)
{
return(VisitChildren(context));
}
