public override Expression VisitCall(EqlGrammerParser.CallContext context)
{
var method = context.method.GetText();
if (!_methodProvider.EntityTypeHasMethod(_currentContext.Type, method))
{
throw new EqlCompilerException($"Method '{method}' not found on current context '{_currentContext.Type.Name}'");
}
// Keep the current context
var outerContext = _currentContext;
// some methods might have a different inner context (IEnumerable etc)
var methodArgContext = _methodProvider.GetMethodContext(_currentContext, method);
_currentContext = methodArgContext;
// Compile the arguments with the new context
var args = context.arguments?.children.Select(c => Visit(c)).ToList();
// build our method call
var call = _methodProvider.MakeCall(outerContext, methodArgContext, method, args);
_currentContext = call;
return(call);
}
/// <summary>
/// Visit a parse tree produced by <see cref="EqlGrammerParser.call"/>.
/// <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 VisitCall([NotNull] EqlGrammerParser.CallContext context)
{
return(VisitChildren(context));
}
