/// <summary>
/// Returns binder that binds usings and aliases
/// </summary>
/// <param name="unit">
/// Specify <see cref="NamespaceDeclarationSyntax"/> imports in the corresponding namespace, or
/// <see cref="CompilationUnitSyntax"/> for top-level imports.
/// </param>
/// <param name="inUsing">True if the binder will be used to bind a using directive.</param>
internal Binder GetImportsBinder(CSharpSyntaxNode unit, bool inUsing = false)
{
switch (unit.Kind())
{
case SyntaxKind.NamespaceDeclaration:
{
BinderFactoryVisitor visitor = _binderFactoryVisitorPool.Allocate();
visitor.Initialize(0, null, null);
Binder result = visitor.VisitNamespaceDeclaration((NamespaceDeclarationSyntax)unit, unit.SpanStart, inBody: true, inUsing: inUsing);
_binderFactoryVisitorPool.Free(visitor);
return(result);
}
case SyntaxKind.CompilationUnit:
// imports are bound by the Script class binder:
{
BinderFactoryVisitor visitor = _binderFactoryVisitorPool.Allocate();
visitor.Initialize(0, null, null);
Binder result = visitor.VisitCompilationUnit((CompilationUnitSyntax)unit, inUsing: inUsing, inScript: InScript);
_binderFactoryVisitorPool.Free(visitor);
return(result);
}
default:
return(null);
}
}
internal Binder GetInRecordBodyBinder(RecordDeclarationSyntax typeDecl)
{
BinderFactoryVisitor visitor = _binderFactoryVisitorPool.Allocate();
visitor.Initialize(position: typeDecl.SpanStart, memberDeclarationOpt: null, memberOpt: null);
Binder resultBinder = visitor.VisitTypeDeclarationCore(typeDecl, NodeUsage.NamedTypeBodyOrTypeParameters);
_binderFactoryVisitorPool.Free(visitor);
return(resultBinder);
}
internal Binder GetBinder(SyntaxNode node, int position, CSharpSyntaxNode memberDeclarationOpt = null, Symbol memberOpt = null)
{
Debug.Assert(node != null);
BinderFactoryVisitor visitor = _binderFactoryVisitorPool.Allocate();
visitor.Initialize(position, memberDeclarationOpt, memberOpt);
Binder result = visitor.Visit(node);
_binderFactoryVisitorPool.Free(visitor);
return(result);
}
