private void HandleEventDeclaration(
DoshikParser.TypeTypeOrVoidContext eventReturnTypeCtx,
string eventCodeName,
DoshikParser.FormalParametersContext eventParametersCtx,
DoshikParser.BlockContext eventBodyCtx
)
{
var eventDeclaration = new EventDeclaration(_compilationContext.CompilationUnit);
eventDeclaration.Parameters = new MethodDeclarationParameters(eventDeclaration, _compilationContext.CompilationUnit.Scope);
_currentMethodDeclaration = eventDeclaration;
eventDeclaration.Name = eventCodeName;
var foundType = GetTypeNameVisitor.Apply(_compilationContext, eventReturnTypeCtx);
foundType.ThrowIfNotFound(_compilationContext);
eventDeclaration.ReturnTypeOrVoid = foundType.DataType;
eventDeclaration.ExternalEvent = _compilationContext.FindExternalApiEventByCodeName(eventDeclaration.Name);
if (_compilationContext.CompilationUnit.Events.ContainsKey(eventDeclaration.Name))
{
throw _compilationContext.ThrowCompilationError($"event handler { eventDeclaration.Name } is already defined");
}
eventDeclaration.Parameters.Parameters.AddRange((List <MethodDeclarationParameter>)Visit(eventParametersCtx));
eventDeclaration.AntlrBody = eventBodyCtx;
if (eventDeclaration.IsCustom)
{
ValidateCustomEvent(eventDeclaration);
}
else
{
ValidateBuiltInEvent(eventDeclaration);
}
_compilationContext.CompilationUnit.Events[eventDeclaration.Name] = eventDeclaration;
}
// возвращает BlockOfStatements
public override object VisitBlock([NotNull] DoshikParser.BlockContext context)
{
_compilationContext.SetParsingAntlrContext(context);
var block = new BlockOfStatements(_currentNode, _currentScope);
// Помечаем текущий блок и заходим в его scope
_currentNode = block;
_currentScope = block.Scope;
foreach (var blockStatementCtx in context.statementInBlock())
{
var statement = (Statement)Visit(blockStatementCtx);
block.Statements.Add(statement);
}
// Возвращаем предыдущий блок и заходим в рдоительский scope
_currentScope = _currentScope.ParentScope;
_currentNode = _currentNode.Parent;
return(block);
}
/// <summary>
/// Visit a parse tree produced by <see cref="DoshikParser.block"/>.
/// <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 VisitBlock([NotNull] DoshikParser.BlockContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="DoshikParser.block"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitBlock([NotNull] DoshikParser.BlockContext context)
{
}
