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114 lines
4.4 KiB
C++
114 lines
4.4 KiB
C++
//===--- ArgsToFrontendOutputsConverter.h -----------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_FRONTEND_ARGSTOFRONTENDOUTPUTSCONVERTER_H
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#define SWIFT_FRONTEND_ARGSTOFRONTENDOUTPUTSCONVERTER_H
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#include "swift/AST/DiagnosticConsumer.h"
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#include "swift/AST/DiagnosticEngine.h"
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#include "swift/Basic/LLVM.h"
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#include "swift/Frontend/FrontendOptions.h"
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#include "swift/Option/Options.h"
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#include "llvm/Option/ArgList.h"
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#include <vector>
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namespace swift {
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/// Given the command line arguments and information about the inputs,
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/// Fill in all the information in FrontendInputsAndOutputs.
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class ArgsToFrontendOutputsConverter {
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const llvm::opt::ArgList &Args;
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StringRef ModuleName;
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FrontendInputsAndOutputs &InputsAndOutputs;
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DiagnosticEngine &Diags;
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public:
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ArgsToFrontendOutputsConverter(const llvm::opt::ArgList &args,
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StringRef moduleName,
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FrontendInputsAndOutputs &inputsAndOutputs,
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DiagnosticEngine &diags)
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: Args(args), ModuleName(moduleName), InputsAndOutputs(inputsAndOutputs),
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Diags(diags) {}
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Optional<std::vector<std::string>> convert();
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/// Try to read an output file list file.
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/// \returns `None` if it could not open the filelist.
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static Optional<std::vector<std::string>>
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readOutputFileList(StringRef filelistPath, DiagnosticEngine &diags);
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};
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class OutputFilesComputer {
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const llvm::opt::ArgList &Args;
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DiagnosticEngine &Diags;
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const FrontendInputsAndOutputs &InputsAndOutputs;
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const std::vector<std::string> OutputFileArguments;
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const std::string OutputDirectoryArgument;
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const StringRef FirstInput;
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const FrontendOptions::ActionType RequestedAction;
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const llvm::opt::Arg *const ModuleNameArg;
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const StringRef Suffix;
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const bool HasTextualOutput;
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OutputFilesComputer(const llvm::opt::ArgList &args, DiagnosticEngine &diags,
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const FrontendInputsAndOutputs &inputsAndOutputs,
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std::vector<std::string> outputFileArguments,
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StringRef outputDirectoryArgument, StringRef firstInput,
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FrontendOptions::ActionType requestedAction,
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const llvm::opt::Arg *moduleNameArg, StringRef suffix,
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bool hasTextualOutput);
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public:
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static Optional<OutputFilesComputer>
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create(const llvm::opt::ArgList &args, DiagnosticEngine &diags,
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const FrontendInputsAndOutputs &inputsAndOutputs);
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/// \return the output filenames on the command line or in the output
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/// filelist. If there
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/// were neither -o's nor an output filelist, returns an empty vector.
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static Optional<std::vector<std::string>>
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getOutputFilenamesFromCommandLineOrFilelist(const llvm::opt::ArgList &args,
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DiagnosticEngine &diags);
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Optional<std::vector<std::string>> computeOutputFiles() const;
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private:
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Optional<std::string> computeOutputFile(StringRef outputArg,
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const InputFile &input) const;
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/// \return the correct output filename when none was specified.
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///
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/// Such an absence should only occur when invoking the frontend
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/// without the driver,
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/// because the driver will always pass -o with an appropriate filename
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/// if output is required for the requested action.
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Optional<std::string> deriveOutputFileFromInput(const InputFile &input) const;
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/// \return the correct output filename when a directory was specified.
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///
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/// Such a specification should only occur when invoking the frontend
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/// directly, because the driver will always pass -o with an appropriate
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/// filename if output is required for the requested action.
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Optional<std::string>
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deriveOutputFileForDirectory(const InputFile &input) const;
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std::string determineBaseNameOfOutput(const InputFile &input) const;
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std::string deriveOutputFileFromParts(StringRef dir, StringRef base) const;
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};
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} // namespace swift
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#endif /* SWIFT_FRONTEND_ARGSTOFRONTENDOUTPUTSCONVERTER_H */
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