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Showing content from https://clang.llvm.org/doxygen/CreateInvocationFromCommandLine_8cpp_source.html below:

clang: lib/Frontend/CreateInvocationFromCommandLine.cpp Source File

22#include "llvm/ADT/STLExtras.h" 23#include "llvm/ADT/StringRef.h" 24#include "llvm/Option/ArgList.h" 25#include "llvm/Support/VirtualFileSystem.h" 26#include "llvm/TargetParser/Host.h" 27using namespace clang

;

30

std::unique_ptr<CompilerInvocation>

33

assert(!ArgList.empty());

34 auto

Diags = Opts.

Diags 35

? std::move(Opts.

Diags

)

37

Opts.

VFS

? *Opts.

VFS

: *llvm::vfs::getRealFileSystem(),

45

Args, [](

const char

*Elem) {

return

llvm::StringRef(Elem) ==

"--"

; }),

49 driver::Driver

TheDriver(Args[0], llvm::sys::getDefaultTargetTriple(), *Diags,

50 "clang LLVM compiler"

, Opts.

VFS

);

60 if

(

C

->getArgs().hasArg(driver::options::OPT_fdriver_only))

64 if

(

C

->getArgs().hasArg(driver::options::OPT__HASH_HASH_HASH)) {

65 C

->getJobs().Print(llvm::errs(),

"\n"

,

true

);

75 bool

OffloadCompilation =

false

;

76 if

(Jobs.

size

() > 1) {

77 for

(

auto

&A :

C

->getActions()){

79 if

(isa<driver::BindArchAction>(A))

80

A = *A->input_begin();

81 if

(isa<driver::OffloadAction>(A)) {

82

OffloadCompilation =

true

;

88 bool

PickFirstOfMany = OffloadCompilation || Opts.

RecoverOnError

;

89 if

(Jobs.

size

() == 0 || (Jobs.

size

() > 1 && !PickFirstOfMany)) {

91

llvm::raw_svector_ostream OS(Msg);

92

Jobs.

Print

(OS,

"; "

,

true

);

93

Diags->Report(diag::err_fe_expected_compiler_job) << OS.str();

97 return

StringRef(

Cmd

.getCreator().getName()) ==

"clang"

;

99 if

(

Cmd

== Jobs.

end

()) {

100

Diags->Report(diag::err_fe_expected_clang_command);

104 const

ArgStringList &CCArgs =

Cmd

->getArguments();

106

*Opts.

CC1Args

= {CCArgs.begin(), CCArgs.end()};

107 auto

CI = std::make_unique<CompilerInvocation>();

void createDiagnostics(llvm::vfs::FileSystem &VFS, DiagnosticConsumer *Client=nullptr, bool ShouldOwnClient=true)

Create the diagnostics engine using the invocation's diagnostic options and replace any existing one ...

static bool CreateFromArgs(CompilerInvocation &Res, ArrayRef< const char * > CommandLineArgs, DiagnosticsEngine &Diags, const char *Argv0=nullptr)

Create a compiler invocation from a list of input options.

Options for controlling the compiler diagnostics engine.

Command - An executable path/name and argument vector to execute.

Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...

void setCheckInputsExist(bool Value)

void setProbePrecompiled(bool Value)

Compilation * BuildCompilation(ArrayRef< const char * > Args)

BuildCompilation - Construct a compilation object for a command line argument vector.

JobList - A sequence of jobs to perform.

void Print(llvm::raw_ostream &OS, const char *Terminator, bool Quote, CrashReportInfo *CrashInfo=nullptr) const

The JSON file list parser is used to communicate input to InstallAPI.

std::unique_ptr< CompilerInvocation > createInvocation(ArrayRef< const char * > Args, CreateInvocationOptions Opts={})

Interpret clang arguments in preparation to parse a file.

Optional inputs to createInvocation.

IntrusiveRefCntPtr< DiagnosticsEngine > Diags

Receives diagnostics encountered while parsing command-line flags.

bool ProbePrecompiled

Allow the driver to probe the filesystem for PCH files.

bool RecoverOnError

Whether to attempt to produce a non-null (possibly incorrect) invocation if any errors were encounter...

IntrusiveRefCntPtr< llvm::vfs::FileSystem > VFS

Used e.g.

std::vector< std::string > * CC1Args

If set, the target is populated with the cc1 args produced by the driver.

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