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-//===--- Tool.h - Compilation Tools -----------------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_DRIVER_TOOL_H
-#define LLVM_CLANG_DRIVER_TOOL_H
-
-#include "clang/Basic/LLVM.h"
-#include "llvm/Support/Program.h"
-
-namespace llvm {
-namespace opt {
- class ArgList;
-}
-}
-
-namespace clang {
-namespace driver {
-
- class Compilation;
- class InputInfo;
- class Job;
- class JobAction;
- class ToolChain;
-
- typedef SmallVector<InputInfo, 4> InputInfoList;
-
-/// Tool - Information on a specific compilation tool.
-class Tool {
-public:
- // Documents the level of support for response files in this tool.
- // Response files are necessary if the command line gets too large,
- // requiring the arguments to be transfered to a file.
- enum ResponseFileSupport {
- // Provides full support for response files, which means we can transfer
- // all tool input arguments to a file. E.g.: clang, gcc, binutils and MSVC
- // tools.
- RF_Full,
- // Input file names can live in a file, but flags can't. E.g.: ld64 (Mac
- // OS X linker).
- RF_FileList,
- // Does not support response files: all arguments must be passed via
- // command line.
- RF_None
- };
-
-private:
- /// The tool name (for debugging).
- const char *Name;
-
- /// The human readable name for the tool, for use in diagnostics.
- const char *ShortName;
-
- /// The tool chain this tool is a part of.
- const ToolChain &TheToolChain;
-
- /// The level of support for response files seen in this tool
- const ResponseFileSupport ResponseSupport;
-
- /// The encoding to use when writing response files for this tool on Windows
- const llvm::sys::WindowsEncodingMethod ResponseEncoding;
-
- /// The flag used to pass a response file via command line to this tool
- const char *const ResponseFlag;
-
-public:
- Tool(const char *Name, const char *ShortName, const ToolChain &TC,
- ResponseFileSupport ResponseSupport = RF_None,
- llvm::sys::WindowsEncodingMethod ResponseEncoding = llvm::sys::WEM_UTF8,
- const char *ResponseFlag = "@");
-
-public:
- virtual ~Tool();
-
- const char *getName() const { return Name; }
-
- const char *getShortName() const { return ShortName; }
-
- const ToolChain &getToolChain() const { return TheToolChain; }
-
- virtual bool hasIntegratedAssembler() const { return false; }
- virtual bool canEmitIR() const { return false; }
- virtual bool hasIntegratedCPP() const = 0;
- virtual bool isLinkJob() const { return false; }
- virtual bool isDsymutilJob() const { return false; }
- /// \brief Returns the level of support for response files of this tool,
- /// whether it accepts arguments to be passed via a file on disk.
- ResponseFileSupport getResponseFilesSupport() const {
- return ResponseSupport;
- }
- /// \brief Returns which encoding the response file should use. This is only
- /// relevant on Windows platforms where there are different encodings being
- /// accepted for different tools. On UNIX, UTF8 is universal.
- ///
- /// Windows use cases: - GCC and Binutils on mingw only accept ANSI response
- /// files encoded with the system current code page.
- /// - MSVC's CL.exe and LINK.exe accept UTF16 on Windows.
- /// - Clang accepts both UTF8 and UTF16.
- ///
- /// FIXME: When GNU tools learn how to parse UTF16 on Windows, we should
- /// always use UTF16 for Windows, which is the Windows official encoding for
- /// international characters.
- llvm::sys::WindowsEncodingMethod getResponseFileEncoding() const {
- return ResponseEncoding;
- }
- /// \brief Returns which prefix to use when passing the name of a response
- /// file as a parameter to this tool.
- const char *getResponseFileFlag() const { return ResponseFlag; }
-
- /// \brief Does this tool have "good" standardized diagnostics, or should the
- /// driver add an additional "command failed" diagnostic on failures.
- virtual bool hasGoodDiagnostics() const { return false; }
-
- /// ConstructJob - Construct jobs to perform the action \p JA,
- /// writing to \p Output and with \p Inputs, and add the jobs to
- /// \p C.
- ///
- /// \param TCArgs - The argument list for this toolchain, with any
- /// tool chain specific translations applied.
- /// \param LinkingOutput - If this output will eventually feed the
- /// linker, then this is the final output name of the linked image.
- virtual void ConstructJob(Compilation &C, const JobAction &JA,
- const InputInfo &Output,
- const InputInfoList &Inputs,
- const llvm::opt::ArgList &TCArgs,
- const char *LinkingOutput) const = 0;
-};
-
-} // end namespace driver
-} // end namespace clang
-
-#endif
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