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//===--- ModuleLoader.h - Module Loader Interface ---------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ModuleLoader interface, which is responsible for
// loading named modules.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LEX_MODULE_LOADER_H
#define LLVM_CLANG_LEX_MODULE_LOADER_H
#include "clang/Basic/Module.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/ArrayRef.h"
namespace clang {
class IdentifierInfo;
/// \brief A sequence of identifier/location pairs used to describe a particular
/// module or submodule, e.g., std.vector.
typedef llvm::ArrayRef<std::pair<IdentifierInfo*, SourceLocation> >
ModuleIdPath;
/// \brief Abstract interface for a module loader.
///
/// This abstract interface describes a module loader, which is responsible
/// for resolving a module name (e.g., "std") to an actual module file, and
/// then loading that module.
class ModuleLoader {
public:
virtual ~ModuleLoader();
/// \brief Attempt to load the given module.
///
/// This routine attempts to load the module described by the given
/// parameters.
///
/// \param ImportLoc The location of the 'import' keyword.
///
/// \param Path The identifiers (and their locations) of the module
/// "path", e.g., "std.vector" would be split into "std" and "vector".
///
/// \param Visibility The visibility provided for the names in the loaded
/// module.
///
/// \param IsInclusionDirective Indicates that this module is being loaded
/// implicitly, due to the presence of an inclusion directive. Otherwise,
/// it is being loaded due to an import declaration.
///
/// \returns If successful, returns the loaded module. Otherwise, returns
/// NULL to indicate that the module could not be loaded.
virtual Module *loadModule(SourceLocation ImportLoc, ModuleIdPath Path,
Module::NameVisibilityKind Visibility,
bool IsInclusionDirective) = 0;
};
}
#endif
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