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410 lines
13 KiB
C++
410 lines
13 KiB
C++
//===--- FrontendInputsAndOutputs.cpp -------------------------------------===//
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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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#include "swift/Frontend/FrontendInputsAndOutputs.h"
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#include "swift/AST/DiagnosticsFrontend.h"
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#include "swift/Basic/PrimarySpecificPaths.h"
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#include "swift/Frontend/FrontendOptions.h"
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#include "swift/Option/Options.h"
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#include "swift/Parse/Lexer.h"
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#include "swift/Strings.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/LineIterator.h"
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#include "llvm/Support/Path.h"
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using namespace swift;
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using namespace llvm::opt;
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// Constructors
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FrontendInputsAndOutputs::FrontendInputsAndOutputs(
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const FrontendInputsAndOutputs &other) {
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for (InputFile input : other.AllInputs)
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addInput(input);
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IsSingleThreadedWMO = other.IsSingleThreadedWMO;
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SupplementaryOutputs = other.SupplementaryOutputs;
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PrimarySpecificPathsForAtMostOnePrimary =
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other.PrimarySpecificPathsForAtMostOnePrimary;
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}
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FrontendInputsAndOutputs &FrontendInputsAndOutputs::
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operator=(const FrontendInputsAndOutputs &other) {
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clearInputs();
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for (InputFile input : other.AllInputs)
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addInput(input);
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IsSingleThreadedWMO = other.IsSingleThreadedWMO;
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SupplementaryOutputs = other.SupplementaryOutputs;
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PrimarySpecificPathsForAtMostOnePrimary =
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other.PrimarySpecificPathsForAtMostOnePrimary;
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return *this;
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}
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// All inputs:
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std::vector<std::string> FrontendInputsAndOutputs::getInputFilenames() const {
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std::vector<std::string> filenames;
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for (auto &input : AllInputs) {
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filenames.push_back(input.file());
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}
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return filenames;
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}
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bool FrontendInputsAndOutputs::isReadingFromStdin() const {
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return hasSingleInput() && getFilenameOfFirstInput() == "-";
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}
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StringRef FrontendInputsAndOutputs::getFilenameOfFirstInput() const {
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assert(hasInputs());
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const InputFile &inp = AllInputs[0];
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StringRef f = inp.file();
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assert(!f.empty());
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return f;
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}
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void FrontendInputsAndOutputs::forEachInput(
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llvm::function_ref<void(const InputFile &)> fn) const {
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for (const InputFile &input : AllInputs)
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fn(input);
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}
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// Primaries:
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const InputFile &FrontendInputsAndOutputs::firstPrimaryInput() const {
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assert(!PrimaryInputs.empty());
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for (const auto &f : AllInputs)
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if (f.isPrimary())
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return f;
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llvm_unreachable("no first primary?!");
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}
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const InputFile &FrontendInputsAndOutputs::lastPrimaryInput() const {
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assert(!PrimaryInputs.empty());
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for (const auto &f : reversed(AllInputs))
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if (f.isPrimary())
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return f;
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llvm_unreachable("no last primary?!");
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}
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void FrontendInputsAndOutputs::forEachPrimaryInput(
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llvm::function_ref<void(const InputFile &)> fn) const {
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for (auto &f : AllInputs)
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if (f.isPrimary())
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fn(f);
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}
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void FrontendInputsAndOutputs::assertMustNotBeMoreThanOnePrimaryInput() const {
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assert(!hasMultiplePrimaryInputs() &&
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"have not implemented >1 primary input yet");
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}
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void FrontendInputsAndOutputs::
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assertMustNotBeMoreThanOnePrimaryInputUnlessBatchModeChecksHaveBeenBypassed()
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const {
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if (!areBatchModeChecksBypassed())
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assertMustNotBeMoreThanOnePrimaryInput();
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}
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const InputFile *FrontendInputsAndOutputs::getUniquePrimaryInput() const {
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assertMustNotBeMoreThanOnePrimaryInput();
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const auto b = PrimaryInputs.begin();
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return b == PrimaryInputs.end() ? nullptr : &AllInputs[b->second];
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}
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const InputFile &
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FrontendInputsAndOutputs::getRequiredUniquePrimaryInput() const {
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if (const auto *input = getUniquePrimaryInput())
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return *input;
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llvm_unreachable("No primary when one is required");
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}
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StringRef FrontendInputsAndOutputs::getNameOfUniquePrimaryInputFile() const {
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const auto *input = getUniquePrimaryInput();
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return input == nullptr ? StringRef() : input->file();
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}
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std::string FrontendInputsAndOutputs::getStatsFileMangledInputName() const {
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// FIXME: "batch" should probably be some concatenation of all the primary
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// input names, in order to keep the stats file names unique. (Or perhaps just
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// the first primary?)
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return isWholeModule()
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? "all"
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: primaryInputCount() == 1 ? firstPrimaryInput().file() : "batch";
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}
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bool FrontendInputsAndOutputs::isInputPrimary(StringRef file) const {
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StringRef correctedFile =
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InputFile::convertBufferNameFromLLVM_getFileOrSTDIN_toSwiftConventions(
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file);
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auto iterator = PrimaryInputs.find(correctedFile);
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if (iterator == PrimaryInputs.end())
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return false;
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assert(AllInputs[iterator->second].isPrimary() &&
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"PrimaryInputs should only hold primaries");
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return true;
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}
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unsigned FrontendInputsAndOutputs::numberOfPrimaryInputsEndingWith(
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const char *extension) const {
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return count_if(
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PrimaryInputs, [&](const llvm::StringMapEntry<unsigned> &elem) -> bool {
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StringRef filename = AllInputs[elem.second].file();
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return llvm::sys::path::extension(filename).endswith(extension);
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});
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}
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// Input queries
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bool FrontendInputsAndOutputs::shouldTreatAsLLVM() const {
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if (hasSingleInput()) {
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StringRef Input(getFilenameOfFirstInput());
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return llvm::sys::path::extension(Input).endswith(LLVM_BC_EXTENSION) ||
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llvm::sys::path::extension(Input).endswith(LLVM_IR_EXTENSION);
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}
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return false;
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}
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bool FrontendInputsAndOutputs::shouldTreatAsSIL() const {
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if (hasSingleInput()) {
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// If we have exactly one input filename, and its extension is "sil",
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// treat the input as SIL.
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StringRef Input(getFilenameOfFirstInput());
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return llvm::sys::path::extension(Input).endswith(SIL_EXTENSION);
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}
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// If we have one primary input and it's a filename with extension "sil",
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// treat the input as SIL.
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unsigned silPrimaryCount = numberOfPrimaryInputsEndingWith(SIL_EXTENSION);
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if (silPrimaryCount == 0)
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return false;
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if (silPrimaryCount == primaryInputCount()) {
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// Not clear what to do someday with multiple primaries
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assertMustNotBeMoreThanOnePrimaryInput();
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return true;
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}
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llvm_unreachable("Either all primaries or none must end with .sil");
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}
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bool FrontendInputsAndOutputs::areAllNonPrimariesSIB() const {
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for (const InputFile &input : AllInputs) {
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if (input.isPrimary())
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continue;
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if (!llvm::sys::path::extension(input.file()).endswith(SIB_EXTENSION)) {
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return false;
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}
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}
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return true;
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}
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bool FrontendInputsAndOutputs::verifyInputs(DiagnosticEngine &diags,
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bool treatAsSIL,
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bool isREPLRequested,
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bool isNoneRequested) const {
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if (isREPLRequested) {
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if (hasInputs()) {
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diags.diagnose(SourceLoc(), diag::error_repl_requires_no_input_files);
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return true;
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}
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} else if (treatAsSIL) {
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if (isWholeModule()) {
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if (inputCount() != 1) {
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diags.diagnose(SourceLoc(), diag::error_mode_requires_one_input_file);
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return true;
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}
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} else {
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assertMustNotBeMoreThanOnePrimaryInput();
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// If we have the SIL as our primary input, we can waive the one file
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// requirement as long as all the other inputs are SIBs.
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if (!areAllNonPrimariesSIB()) {
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diags.diagnose(SourceLoc(),
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diag::error_mode_requires_one_sil_multi_sib);
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return true;
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}
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}
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} else if (!isNoneRequested && !hasInputs()) {
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diags.diagnose(SourceLoc(), diag::error_mode_requires_an_input_file);
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return true;
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}
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return false;
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}
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// Changing inputs
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void FrontendInputsAndOutputs::clearInputs() {
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AllInputs.clear();
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PrimaryInputs.clear();
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}
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void FrontendInputsAndOutputs::addInput(const InputFile &input) {
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if (!input.file().empty() && input.isPrimary())
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PrimaryInputs.insert(std::make_pair(input.file(), AllInputs.size()));
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AllInputs.push_back(input);
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}
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void FrontendInputsAndOutputs::addInputFile(StringRef file,
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llvm::MemoryBuffer *buffer) {
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addInput(InputFile(file, false, buffer));
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}
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void FrontendInputsAndOutputs::addPrimaryInputFile(StringRef file,
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llvm::MemoryBuffer *buffer) {
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addInput(InputFile(file, true, buffer));
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}
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// Outputs
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unsigned FrontendInputsAndOutputs::countOfInputsProducingMainOutputs() const {
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return isSingleThreadedWMO()
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? 1
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: hasPrimaryInputs() ? primaryInputCount() : inputCount();
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}
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const InputFile &FrontendInputsAndOutputs::firstInputProducingOutput() const {
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return isSingleThreadedWMO()
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? firstInput()
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: hasPrimaryInputs() ? firstPrimaryInput() : firstInput();
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}
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const InputFile &FrontendInputsAndOutputs::lastInputProducingOutput() const {
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return isSingleThreadedWMO()
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? firstInput()
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: hasPrimaryInputs() ? lastPrimaryInput() : lastInput();
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}
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void FrontendInputsAndOutputs::forEachInputProducingAMainOutputFile(
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llvm::function_ref<void(const InputFile &)> fn) const {
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isSingleThreadedWMO()
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? fn(firstInput())
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: hasPrimaryInputs() ? forEachPrimaryInput(fn) : forEachInput(fn);
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}
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void FrontendInputsAndOutputs::setMainAndSupplementaryOutputs(
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ArrayRef<std::string> outputFiles,
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SupplementaryOutputPaths supplementaryOutputs) {
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if (hasPrimaryInputs()) {
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unsigned i = 0;
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for (auto index : indices(AllInputs)) {
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InputFile &f = AllInputs[index];
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if (f.isPrimary())
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f.setOutputFilename(outputFiles[i++]);
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}
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} else if (isSingleThreadedWMO()) {
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AllInputs[0].setOutputFilename(outputFiles[0]);
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} else {
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for (auto i : indices(AllInputs))
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AllInputs[i].setOutputFilename(outputFiles[i]);
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}
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SupplementaryOutputs = supplementaryOutputs;
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if (hasUniquePrimaryInput() || (hasInputs() && isWholeModule())) {
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// When batch mode is fully implemented, each InputFile will own
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// a PrimarySpecificPaths.
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PrimarySpecificPathsForAtMostOnePrimary.OutputFilename =
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getSingleOutputFilename();
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PrimarySpecificPathsForAtMostOnePrimary.MainInputFilenameForDebugInfo =
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hasInputsProducingMainOutputs() ? firstInputProducingOutput().file()
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: StringRef();
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PrimarySpecificPathsForAtMostOnePrimary.SupplementaryOutputs =
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supplementaryOutputs;
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}
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}
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std::vector<std::string> FrontendInputsAndOutputs::copyOutputFilenames() const {
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std::vector<std::string> outputs;
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forEachInputProducingAMainOutputFile([&](const InputFile &input) -> void {
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outputs.push_back(input.outputFilename());
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});
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return outputs;
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}
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void FrontendInputsAndOutputs::forEachOutputFilename(
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llvm::function_ref<void(const std::string &)> fn) const {
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forEachInputProducingAMainOutputFile(
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[&](const InputFile &input) -> void { fn(input.outputFilename()); });
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}
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StringRef FrontendInputsAndOutputs::getSingleOutputFilename() const {
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assertMustNotBeMoreThanOnePrimaryInputUnlessBatchModeChecksHaveBeenBypassed();
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return hasInputs() ? StringRef(lastInputProducingOutput().outputFilename())
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: StringRef();
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}
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bool FrontendInputsAndOutputs::isOutputFilenameStdout() const {
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return getSingleOutputFilename() == "-";
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}
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bool FrontendInputsAndOutputs::isOutputFileDirectory() const {
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return hasNamedOutputFile() &&
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llvm::sys::fs::is_directory(getSingleOutputFilename());
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}
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bool FrontendInputsAndOutputs::hasNamedOutputFile() const {
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return hasInputs() && !isOutputFilenameStdout();
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}
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// Supplementary outputs
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unsigned
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FrontendInputsAndOutputs::countOfFilesProducingSupplementaryOutput() const {
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return hasPrimaryInputs() ? primaryInputCount() : hasInputs() ? 1 : 0;
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}
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void FrontendInputsAndOutputs::forEachInputProducingSupplementaryOutput(
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llvm::function_ref<void(const InputFile &)> fn) const {
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if (hasPrimaryInputs())
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forEachPrimaryInput(fn);
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else if (hasInputs())
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fn(firstInput());
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}
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bool FrontendInputsAndOutputs::hasDependenciesPath() const {
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return !supplementaryOutputs().DependenciesFilePath.empty();
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}
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bool FrontendInputsAndOutputs::hasReferenceDependenciesPath() const {
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return !supplementaryOutputs().ReferenceDependenciesFilePath.empty();
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}
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bool FrontendInputsAndOutputs::hasObjCHeaderOutputPath() const {
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return !supplementaryOutputs().ObjCHeaderOutputPath.empty();
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}
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bool FrontendInputsAndOutputs::hasLoadedModuleTracePath() const {
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return !supplementaryOutputs().LoadedModuleTracePath.empty();
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}
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bool FrontendInputsAndOutputs::hasModuleOutputPath() const {
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return !supplementaryOutputs().ModuleOutputPath.empty();
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}
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bool FrontendInputsAndOutputs::hasModuleDocOutputPath() const {
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return !supplementaryOutputs().ModuleDocOutputPath.empty();
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}
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bool FrontendInputsAndOutputs::hasTBDPath() const {
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return !supplementaryOutputs().TBDPath.empty();
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}
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bool FrontendInputsAndOutputs::hasDependencyTrackerPath() const {
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return hasDependenciesPath() || hasReferenceDependenciesPath() ||
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hasLoadedModuleTracePath();
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}
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PrimarySpecificPaths &
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FrontendInputsAndOutputs::getPrimarySpecificPathsForAtMostOnePrimary() {
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return PrimarySpecificPathsForAtMostOnePrimary;
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}
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PrimarySpecificPaths &
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FrontendInputsAndOutputs::getPrimarySpecificPathsForPrimary(
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StringRef filename) {
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return getPrimarySpecificPathsForAtMostOnePrimary(); // just a stub for now
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}
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