internal static bool HandleXSharpImport(UsingDirectiveSyntax usingDirective, Binder usingsBinder,
ArrayBuilder <NamespaceOrTypeAndUsingDirective> usings, PooledHashSet <NamespaceOrTypeSymbol> uniqueUsings,
ConsList <Symbol> basesBeingResolved, CSharpCompilation compilation)
{
// The usingDirective name contains spaces when it is nested and the GlobalClassName not , so we must eliminate them here
// nvk: usingDirective.Name.ToString() ONLY has spaces if it is nested. This is not supposed to be nested, as it is "Functions" even for the non-core dialects !!!
if (usingDirective.Name.ToString().EndsWith(XSharpSpecialNames.FunctionsClass))
{
var result = LookupResult.GetInstance();
LookupOptions options = LookupOptions.AllNamedTypesOnArityZero;
HashSet <DiagnosticInfo> useSiteDiagnostics = null;
usingsBinder.LookupSymbolsSimpleName(result, null, XSharpSpecialNames.FunctionsClass, 0, basesBeingResolved, options, false, useSiteDiagnostics: ref useSiteDiagnostics);
foreach (var sym in result.Symbols)
{
if (sym.Kind == SymbolKind.NamedType)
{
var ts = (NamedTypeSymbol)sym;
AddNs(usingDirective, ts, usings, uniqueUsings);
}
}
var opts = ((CSharpSyntaxTree)usingDirective.SyntaxTree).Options;
if (opts.CommandLineArguments != null)
{
string functionsClass = null;
if (compilation.Options.HasRuntime)
{
functionsClass = Syntax.InternalSyntax.XSharpTreeTransformationRT.VOGlobalClassName(opts);
}
else
{
functionsClass = Syntax.InternalSyntax.XSharpTreeTransformationCore.GlobalFunctionClassName(opts.TargetDLL);
}
if (!string.IsNullOrEmpty(functionsClass))
{
var declbinder = usingsBinder.WithAdditionalFlags(BinderFlags.SuppressConstraintChecks);
var diagnostics = DiagnosticBag.GetInstance();
var name = Syntax.InternalSyntax.XSharpTreeTransformationCore.ExtGenerateQualifiedName(functionsClass);
var imported = declbinder.BindNamespaceOrTypeSymbol(name, diagnostics, basesBeingResolved);
if (imported.Kind == SymbolKind.NamedType)
{
var importedType = (NamedTypeSymbol)imported;
AddNs(usingDirective, importedType, usings, uniqueUsings);
}
}
}
if (!compilation.ClassLibraryType().IsErrorType() &&
!compilation.ImplicitNamespaceType().IsErrorType())
{
var declbinder = usingsBinder.WithAdditionalFlags(BinderFlags.SuppressConstraintChecks);
var diagnostics = DiagnosticBag.GetInstance();
string[] defNs;
if (compilation.Options.XSharpRuntime)
{
defNs = new string[] { OurNameSpaces.XSharp }
}
;
else
{
defNs = new string[] { OurNameSpaces.Vulcan }
};
foreach (var n in defNs)
{
var name = Syntax.InternalSyntax.XSharpTreeTransformationCore.ExtGenerateQualifiedName(n);
var imported = declbinder.BindNamespaceOrTypeSymbol(name, diagnostics, basesBeingResolved);
if (imported.Kind == SymbolKind.Namespace)
{
AddNs(usingDirective, imported, usings, uniqueUsings);
}
else if (imported.Kind == SymbolKind.NamedType)
{
var importedType = (NamedTypeSymbol)imported;
AddNs(usingDirective, importedType, usings, uniqueUsings);
}
}
var vcla = compilation.ClassLibraryType();
var vins = compilation.ImplicitNamespaceType();
var refMan = compilation.GetBoundReferenceManager();
foreach (var r in refMan.ReferencedAssemblies)
{
foreach (var attr in r.GetAttributes())
{
// Check for VulcanImplicitNameSpace attribute
if (attr.AttributeClass.ConstructedFrom == vins && compilation.Options.ImplicitNameSpace)
{
var args = attr.CommonConstructorArguments;
if (args != null && args.Length == 1)
{
// only one argument, must be default namespace
var defaultNamespace = args[0].Value.ToString();
if (!string.IsNullOrEmpty(defaultNamespace))
{
var name = Syntax.InternalSyntax.XSharpTreeTransformationCore.ExtGenerateQualifiedName(defaultNamespace);
var imported = declbinder.BindNamespaceOrTypeSymbol(name, diagnostics, basesBeingResolved);
if (imported.Kind == SymbolKind.Namespace)
{
AddNs(usingDirective, imported, usings, uniqueUsings);
}
}
}
}
// Check for VulcanClasslibrary attribute
else if (attr.AttributeClass.ConstructedFrom == vcla)
{
var args = attr.CommonConstructorArguments;
if (args != null && args.Length == 2)
{
// first element is the Functions class
var globalClassName = args[0].Value.ToString();
if (!string.IsNullOrEmpty(globalClassName))
{
var name = Syntax.InternalSyntax.XSharpTreeTransformationCore.ExtGenerateQualifiedName(globalClassName);
var imported = declbinder.BindNamespaceOrTypeSymbol(name, diagnostics, basesBeingResolved);
if (imported.Kind == SymbolKind.NamedType)
{
var importedType = (NamedTypeSymbol)imported;
AddNs(usingDirective, importedType, usings, uniqueUsings);
}
}
// second element is the default namespace
var defaultNamespace = args[1].Value.ToString();
if (!string.IsNullOrEmpty(defaultNamespace) && compilation.Options.ImplicitNameSpace)
{
var name = Syntax.InternalSyntax.XSharpTreeTransformationCore.ExtGenerateQualifiedName(defaultNamespace);
var imported = declbinder.BindNamespaceOrTypeSymbol(name, diagnostics, basesBeingResolved);
if (imported.Kind == SymbolKind.Namespace)
{
AddNs(usingDirective, imported, usings, uniqueUsings);
}
}
}
}
}
}
}
return(true);
}
return(false);
}
}