forked from swiftlang/swift
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathCompilerInvocation.cpp
4074 lines (3514 loc) · 161 KB
/
CompilerInvocation.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//===--- CompilerInvocation.cpp - CompilerInvocation methods --------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Driver.h"
#include "swift/AST/SILOptions.h"
#include "swift/Basic/DiagnosticOptions.h"
#include "swift/Frontend/Frontend.h"
#include "ArgsToFrontendOptionsConverter.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/Basic/Assertions.h"
#include "swift/Basic/Feature.h"
#include "swift/Basic/Platform.h"
#include "swift/Basic/Version.h"
#include "swift/Option/Options.h"
#include "swift/Option/SanitizerOptions.h"
#include "swift/Parse/Lexer.h"
#include "swift/Parse/ParseVersion.h"
#include "swift/SIL/SILBridging.h"
#include "swift/Strings.h"
#include "swift/SymbolGraphGen/SymbolGraphOptions.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/LineIterator.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/VersionTuple.h"
#include "llvm/Support/WithColor.h"
#include "llvm/TargetParser/Triple.h"
using namespace swift;
using namespace llvm::opt;
/// The path for Swift libraries in the OS on Darwin.
#define DARWIN_OS_LIBRARY_PATH "/usr/lib/swift"
static constexpr const char *const localeCodes[] = {
#define SUPPORTED_LOCALE(Code, Language) #Code,
#include "swift/AST/LocalizationLanguages.def"
};
swift::CompilerInvocation::CompilerInvocation() {
setTargetTriple(llvm::sys::getDefaultTargetTriple());
}
/// Converts a llvm::Triple to a llvm::VersionTuple.
static llvm::VersionTuple
getVersionTuple(const llvm::Triple &triple) {
if (triple.isMacOSX()) {
llvm::VersionTuple OSVersion;
triple.getMacOSXVersion(OSVersion);
return OSVersion;
}
return triple.getOSVersion();
}
void CompilerInvocation::computeRuntimeResourcePathFromExecutablePath(
StringRef mainExecutablePath, bool shared,
llvm::SmallVectorImpl<char> &runtimeResourcePath) {
runtimeResourcePath.append(mainExecutablePath.begin(),
mainExecutablePath.end());
llvm::sys::path::remove_filename(runtimeResourcePath); // Remove /swift
llvm::sys::path::remove_filename(runtimeResourcePath); // Remove /bin
appendSwiftLibDir(runtimeResourcePath, shared);
}
void CompilerInvocation::appendSwiftLibDir(llvm::SmallVectorImpl<char> &path,
bool shared) {
llvm::sys::path::append(path, "lib", shared ? "swift" : "swift_static");
}
void CompilerInvocation::setMainExecutablePath(StringRef Path) {
FrontendOpts.MainExecutablePath = Path.str();
llvm::SmallString<128> LibPath;
computeRuntimeResourcePathFromExecutablePath(
Path, FrontendOpts.UseSharedResourceFolder, LibPath);
setRuntimeResourcePath(LibPath.str());
llvm::SmallString<128> clangPath(Path);
llvm::sys::path::remove_filename(clangPath);
llvm::sys::path::append(clangPath, "clang");
ClangImporterOpts.clangPath = std::string(clangPath);
}
static std::string
getVersionedPrebuiltModulePath(std::optional<llvm::VersionTuple> sdkVer,
StringRef defaultPrebuiltPath) {
if (!sdkVer.has_value())
return defaultPrebuiltPath.str();
std::string versionStr = sdkVer->getAsString();
StringRef vs = versionStr;
do {
SmallString<64> pathWithSDKVer = defaultPrebuiltPath;
llvm::sys::path::append(pathWithSDKVer, vs);
if (llvm::sys::fs::exists(pathWithSDKVer)) {
return pathWithSDKVer.str().str();
} else if (vs.ends_with(".0")) {
vs = vs.substr(0, vs.size() - 2);
} else {
return defaultPrebuiltPath.str();
}
} while(true);
}
std::string CompilerInvocation::computePrebuiltCachePath(
StringRef RuntimeResourcePath, llvm::Triple target,
std::optional<llvm::VersionTuple> sdkVer) {
SmallString<64> defaultPrebuiltPath{RuntimeResourcePath};
StringRef platform;
if (tripleIsMacCatalystEnvironment(target)) {
// The prebuilt cache for macCatalyst is the same as the one for macOS, not
// iOS or a separate location of its own.
platform = "macosx";
} else {
platform = getPlatformNameForTriple(target);
}
llvm::sys::path::append(defaultPrebuiltPath, platform, "prebuilt-modules");
// If the SDK version is given, we should check if SDK-versioned prebuilt
// module cache is available and use it if so.
return getVersionedPrebuiltModulePath(sdkVer, defaultPrebuiltPath);
}
void CompilerInvocation::setDefaultPrebuiltCacheIfNecessary() {
if (!FrontendOpts.PrebuiltModuleCachePath.empty())
return;
if (SearchPathOpts.RuntimeResourcePath.empty())
return;
FrontendOpts.PrebuiltModuleCachePath = computePrebuiltCachePath(
SearchPathOpts.RuntimeResourcePath, LangOpts.Target, LangOpts.SDKVersion);
if (!FrontendOpts.PrebuiltModuleCachePath.empty())
return;
StringRef anchor = "prebuilt-modules";
assert(((StringRef)FrontendOpts.PrebuiltModuleCachePath).contains(anchor));
auto pair = ((StringRef)FrontendOpts.PrebuiltModuleCachePath).split(anchor);
FrontendOpts.BackupModuleInterfaceDir =
(llvm::Twine(pair.first) + "preferred-interfaces" + pair.second).str();
}
void CompilerInvocation::setDefaultBlocklistsIfNecessary() {
if (!LangOpts.BlocklistConfigFilePaths.empty())
return;
if (SearchPathOpts.RuntimeResourcePath.empty())
return;
// XcodeDefault.xctoolchain/usr/lib/swift
SmallString<64> blocklistDir{SearchPathOpts.RuntimeResourcePath};
// XcodeDefault.xctoolchain/usr/lib
llvm::sys::path::remove_filename(blocklistDir);
// XcodeDefault.xctoolchain/usr
llvm::sys::path::remove_filename(blocklistDir);
// XcodeDefault.xctoolchain/usr/local/lib/swift/blocklists
llvm::sys::path::append(blocklistDir, "local", "lib", "swift", "blocklists");
std::error_code EC;
if (llvm::sys::fs::is_directory(blocklistDir)) {
for (llvm::sys::fs::directory_iterator F(blocklistDir, EC), FE;
F != FE; F.increment(EC)) {
StringRef ext = llvm::sys::path::extension(F->path());
if (ext == "yml" || ext == "yaml") {
LangOpts.BlocklistConfigFilePaths.push_back(F->path());
}
}
}
}
void CompilerInvocation::setDefaultInProcessPluginServerPathIfNecessary() {
if (!SearchPathOpts.InProcessPluginServerPath.empty())
return;
if (FrontendOpts.MainExecutablePath.empty())
return;
// '/usr/bin/swift'
SmallString<64> serverLibPath{FrontendOpts.MainExecutablePath};
llvm::sys::path::remove_filename(serverLibPath); // remove 'swift'
#if defined(_WIN32)
// Windows: usr\bin\SwiftInProcPluginServer.dll
llvm::sys::path::append(serverLibPath, "SwiftInProcPluginServer.dll");
#elif defined(__APPLE__)
// Darwin: usr/lib/swift/host/libSwiftInProcPluginServer.dylib
llvm::sys::path::remove_filename(serverLibPath); // remove 'bin'
llvm::sys::path::append(serverLibPath, "lib", "swift", "host");
llvm::sys::path::append(serverLibPath, "libSwiftInProcPluginServer.dylib");
#else
// Other: usr/lib/swift/host/libSwiftInProcPluginServer.so
llvm::sys::path::remove_filename(serverLibPath); // remove 'bin'
llvm::sys::path::append(serverLibPath, "lib", "swift", "host");
llvm::sys::path::append(serverLibPath, "libSwiftInProcPluginServer.so");
#endif
SearchPathOpts.InProcessPluginServerPath = serverLibPath.str();
}
static void updateRuntimeLibraryPaths(SearchPathOptions &SearchPathOpts,
const FrontendOptions &FrontendOpts,
const LangOptions &LangOpts) {
const llvm::Triple &Triple = LangOpts.Target;
llvm::SmallString<128> LibPath(SearchPathOpts.RuntimeResourcePath);
StringRef LibSubDir = getPlatformNameForTriple(Triple);
if (tripleIsMacCatalystEnvironment(Triple))
LibSubDir = "maccatalyst";
if (LangOpts.hasFeature(Feature::Embedded))
LibSubDir = "embedded";
SearchPathOpts.RuntimeLibraryPaths.clear();
#if defined(_WIN32)
// Resource path looks like this:
//
// C:\...\Swift\Toolchains\6.0.0+Asserts\usr\lib\swift
//
// The runtimes are in
//
// C:\...\Swift\Runtimes\6.0.0\usr\bin
//
llvm::SmallString<128> RuntimePath(LibPath);
llvm::sys::path::remove_filename(RuntimePath);
llvm::sys::path::remove_filename(RuntimePath);
llvm::sys::path::remove_filename(RuntimePath);
llvm::SmallString<128> VersionWithAttrs(llvm::sys::path::filename(RuntimePath));
size_t MaybePlus = VersionWithAttrs.find_first_of('+');
StringRef Version = VersionWithAttrs.substr(0, MaybePlus);
llvm::sys::path::remove_filename(RuntimePath);
llvm::sys::path::remove_filename(RuntimePath);
llvm::sys::path::append(RuntimePath, "Runtimes", Version, "usr", "bin");
SearchPathOpts.RuntimeLibraryPaths.push_back(std::string(RuntimePath.str()));
#endif
llvm::sys::path::append(LibPath, LibSubDir);
SearchPathOpts.RuntimeLibraryPaths.push_back(std::string(LibPath.str()));
if (Triple.isOSDarwin())
SearchPathOpts.RuntimeLibraryPaths.push_back(DARWIN_OS_LIBRARY_PATH);
// If this is set, we don't want any runtime import paths.
if (SearchPathOpts.SkipRuntimeLibraryImportPaths) {
SearchPathOpts.setRuntimeLibraryImportPaths({});
return;
}
// Set up the import paths containing the swiftmodules for the libraries in
// RuntimeLibraryPath.
std::vector<std::string> RuntimeLibraryImportPaths;
RuntimeLibraryImportPaths.push_back(std::string(LibPath.str()));
// This is compatibility for <=5.3
if (!Triple.isOSDarwin()) {
llvm::sys::path::append(LibPath, swift::getMajorArchitectureName(Triple));
RuntimeLibraryImportPaths.push_back(std::string(LibPath.str()));
}
if (!SearchPathOpts.ExcludeSDKPathsFromRuntimeLibraryImportPaths && !SearchPathOpts.getSDKPath().empty()) {
const char *swiftDir = FrontendOpts.UseSharedResourceFolder
? "swift" : "swift_static";
if (tripleIsMacCatalystEnvironment(Triple)) {
LibPath = SearchPathOpts.getSDKPath();
llvm::sys::path::append(LibPath, "System", "iOSSupport");
llvm::sys::path::append(LibPath, "usr", "lib", swiftDir);
RuntimeLibraryImportPaths.push_back(std::string(LibPath.str()));
}
LibPath = SearchPathOpts.getSDKPath();
llvm::sys::path::append(LibPath, "usr", "lib", swiftDir);
if (!Triple.isOSDarwin()) {
// Use the non-architecture suffixed form with directory-layout
// swiftmodules.
llvm::sys::path::append(LibPath, getPlatformNameForTriple(Triple));
RuntimeLibraryImportPaths.push_back(std::string(LibPath.str()));
// Compatibility with older releases - use the architecture suffixed form
// for pre-directory-layout multi-architecture layout. Note that some
// platforms (e.g. Windows) will use this even with directory layout in
// older releases.
llvm::sys::path::append(LibPath, swift::getMajorArchitectureName(Triple));
}
RuntimeLibraryImportPaths.push_back(std::string(LibPath.str()));
}
SearchPathOpts.setRuntimeLibraryImportPaths(RuntimeLibraryImportPaths);
}
static void
setIRGenOutputOptsFromFrontendOptions(IRGenOptions &IRGenOpts,
const FrontendOptions &FrontendOpts) {
// Set the OutputKind for the given Action.
IRGenOpts.OutputKind = [](FrontendOptions::ActionType Action) {
switch (Action) {
case FrontendOptions::ActionType::EmitIRGen:
return IRGenOutputKind::LLVMAssemblyBeforeOptimization;
case FrontendOptions::ActionType::EmitIR:
return IRGenOutputKind::LLVMAssemblyAfterOptimization;
case FrontendOptions::ActionType::EmitBC:
return IRGenOutputKind::LLVMBitcode;
case FrontendOptions::ActionType::EmitAssembly:
return IRGenOutputKind::NativeAssembly;
case FrontendOptions::ActionType::Immediate:
return IRGenOutputKind::Module;
case FrontendOptions::ActionType::EmitObject:
default:
// Just fall back to emitting an object file. If we aren't going to run
// IRGen, it doesn't really matter what we put here anyways.
return IRGenOutputKind::ObjectFile;
}
}(FrontendOpts.RequestedAction);
// If we're in JIT mode, set the requisite flags.
if (FrontendOpts.RequestedAction == FrontendOptions::ActionType::Immediate) {
IRGenOpts.UseJIT = true;
IRGenOpts.DebugInfoLevel = IRGenDebugInfoLevel::Normal;
IRGenOpts.DebugInfoFormat = IRGenDebugInfoFormat::DWARF;
}
}
static void
setBridgingHeaderFromFrontendOptions(ClangImporterOptions &ImporterOpts,
const FrontendOptions &FrontendOpts) {
if (FrontendOpts.RequestedAction != FrontendOptions::ActionType::EmitPCH)
return;
// If there aren't any inputs, there's nothing to do.
if (!FrontendOpts.InputsAndOutputs.hasInputs())
return;
// If we aren't asked to output a bridging header, we don't need to set this.
if (ImporterOpts.PrecompiledHeaderOutputDir.empty())
return;
ImporterOpts.BridgingHeader =
FrontendOpts.InputsAndOutputs.getFilenameOfFirstInput();
}
void CompilerInvocation::computeCXXStdlibOptions() {
// The MSVC driver in Clang is not aware of the C++ stdlib, and currently
// always assumes libstdc++, which is incorrect: the Microsoft stdlib is
// normally used.
if (LangOpts.Target.isOSWindows()) {
// In the future, we should support libc++ on Windows. That would require
// the MSVC driver to support it first
// (see https://reviews.llvm.org/D101479).
LangOpts.CXXStdlib = CXXStdlibKind::Msvcprt;
LangOpts.PlatformDefaultCXXStdlib = CXXStdlibKind::Msvcprt;
} else if (LangOpts.Target.isOSLinux() || LangOpts.Target.isOSDarwin()) {
auto [clangDriver, clangDiagEngine] =
ClangImporter::createClangDriver(LangOpts, ClangImporterOpts);
auto clangDriverArgs = ClangImporter::createClangArgs(
ClangImporterOpts, SearchPathOpts, clangDriver);
auto &clangToolchain =
clangDriver.getToolChain(clangDriverArgs, LangOpts.Target);
auto cxxStdlibKind = clangToolchain.GetCXXStdlibType(clangDriverArgs);
auto cxxDefaultStdlibKind = clangToolchain.GetDefaultCXXStdlibType();
auto toCXXStdlibKind =
[](clang::driver::ToolChain::CXXStdlibType clangCXXStdlibType)
-> CXXStdlibKind {
switch (clangCXXStdlibType) {
case clang::driver::ToolChain::CST_Libcxx:
return CXXStdlibKind::Libcxx;
case clang::driver::ToolChain::CST_Libstdcxx:
return CXXStdlibKind::Libstdcxx;
}
};
LangOpts.CXXStdlib = toCXXStdlibKind(cxxStdlibKind);
LangOpts.PlatformDefaultCXXStdlib = toCXXStdlibKind(cxxDefaultStdlibKind);
}
if (!LangOpts.isUsingPlatformDefaultCXXStdlib()) {
// The CxxStdlib overlay was built for the platform default C++ stdlib, and
// its .swiftmodule file refers to implementation-specific symbols (such as
// namespace __1 in libc++, or namespace __cxx11 in libstdc++). Let's
// proactively rebuild the CxxStdlib module from its .swiftinterface if a
// non-default C++ stdlib is used.
FrontendOpts.PreferInterfaceForModules.push_back("CxxStdlib");
}
}
void CompilerInvocation::setRuntimeResourcePath(StringRef Path) {
SearchPathOpts.RuntimeResourcePath = Path.str();
updateRuntimeLibraryPaths(SearchPathOpts, FrontendOpts, LangOpts);
}
void CompilerInvocation::setPlatformAvailabilityInheritanceMapPath(StringRef Path) {
SearchPathOpts.PlatformAvailabilityInheritanceMapPath = Path.str();
}
void CompilerInvocation::setTargetTriple(StringRef Triple) {
setTargetTriple(llvm::Triple(Triple));
}
void CompilerInvocation::setTargetTriple(const llvm::Triple &Triple) {
LangOpts.setTarget(Triple);
updateRuntimeLibraryPaths(SearchPathOpts, FrontendOpts, LangOpts);
}
void CompilerInvocation::setSDKPath(const std::string &Path) {
SearchPathOpts.setSDKPath(Path);
updateRuntimeLibraryPaths(SearchPathOpts, FrontendOpts, LangOpts);
}
bool CompilerInvocation::setModuleAliasMap(std::vector<std::string> args,
DiagnosticEngine &diags) {
return ModuleAliasesConverter::computeModuleAliases(args, FrontendOpts, diags);
}
static void ParseAssertionArgs(ArgList &args) {
using namespace options;
if (args.hasArg(OPT_compiler_assertions)) {
CONDITIONAL_ASSERT_Global_enable_flag = 1;
}
}
static bool ParseFrontendArgs(
FrontendOptions &opts, ArgList &args, DiagnosticEngine &diags,
SmallVectorImpl<std::unique_ptr<llvm::MemoryBuffer>> *buffers) {
ArgsToFrontendOptionsConverter converter(diags, args, opts);
return converter.convert(buffers);
}
static void diagnoseSwiftVersion(std::optional<version::Version> &vers,
Arg *verArg, ArgList &Args,
DiagnosticEngine &diags) {
// General invalid version error
diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
verArg->getAsString(Args), verArg->getValue());
// Note valid versions.
auto validVers = version::Version::getValidEffectiveVersions();
auto versStr = "'" + llvm::join(validVers, "', '") + "'";
diags.diagnose(SourceLoc(), diag::note_valid_swift_versions, versStr);
}
/// Create a new Regex instance out of the string value in \p RpassArg.
/// It returns a pointer to the newly generated Regex instance.
static std::shared_ptr<llvm::Regex>
generateOptimizationRemarkRegex(DiagnosticEngine &Diags, ArgList &Args,
Arg *RpassArg) {
StringRef Val = RpassArg->getValue();
std::string RegexError;
std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
if (!Pattern->isValid(RegexError)) {
Diags.diagnose(SourceLoc(), diag::error_optimization_remark_pattern,
RegexError, RpassArg->getAsString(Args));
Pattern.reset();
}
return Pattern;
}
// Lifted from the clang driver.
static void PrintArg(raw_ostream &OS, const char *Arg, StringRef TempDir) {
const bool Escape = std::strpbrk(Arg, "\"\\$ ");
if (!TempDir.empty()) {
llvm::SmallString<256> ArgPath{Arg};
llvm::sys::fs::make_absolute(ArgPath);
llvm::sys::path::native(ArgPath);
llvm::SmallString<256> TempPath{TempDir};
llvm::sys::fs::make_absolute(TempPath);
llvm::sys::path::native(TempPath);
if (StringRef(ArgPath).starts_with(TempPath)) {
// Don't write temporary file names in the debug info. This would prevent
// incremental llvm compilation because we would generate different IR on
// every compiler invocation.
Arg = "<temporary-file>";
}
}
if (!Escape) {
OS << Arg;
return;
}
// Quote and escape. This isn't really complete, but good enough.
OS << '"';
while (const char c = *Arg++) {
if (c == '"' || c == '\\' || c == '$')
OS << '\\';
OS << c;
}
OS << '"';
}
static void ParseModuleInterfaceArgs(ModuleInterfaceOptions &Opts,
ArgList &Args) {
using namespace options;
Opts.PreserveTypesAsWritten |=
Args.hasArg(OPT_module_interface_preserve_types_as_written);
Opts.AliasModuleNames |=
Args.hasFlag(OPT_alias_module_names_in_module_interface,
OPT_disable_alias_module_names_in_module_interface,
::getenv("SWIFT_ALIAS_MODULE_NAMES_IN_INTERFACES"));
Opts.PrintFullConvention |=
Args.hasArg(OPT_experimental_print_full_convention);
Opts.DebugPrintInvalidSyntax |=
Args.hasArg(OPT_debug_emit_invalid_swiftinterface_syntax);
Opts.PrintMissingImports =
!Args.hasArg(OPT_disable_print_missing_imports_in_module_interface);
if (const Arg *A = Args.getLastArg(OPT_library_level)) {
StringRef contents = A->getValue();
if (contents == "spi") {
Opts.setInterfaceMode(PrintOptions::InterfaceMode::Private);
}
}
}
/// Checks if an arg is generally allowed to be included
/// in a module interface
static bool ShouldIncludeModuleInterfaceArg(const Arg *A) {
if (!A->getOption().hasFlag(options::ModuleInterfaceOption) &&
!A->getOption().hasFlag(options::ModuleInterfaceOptionIgnorable))
return false;
if (!A->getOption().matches(options::OPT_enable_experimental_feature))
return true;
if (auto feature = getExperimentalFeature(A->getValue())) {
return swift::includeInModuleInterface(*feature);
}
return true;
}
static bool IsPackageInterfaceFlag(const Arg *A, ArgList &Args) {
return false;
}
static bool IsPrivateInterfaceFlag(const Arg *A, ArgList &Args) {
return A->getOption().matches(options::OPT_project_name);
}
/// Save a copy of any flags marked as ModuleInterfaceOption, if running
/// in a mode that is going to emit a .swiftinterface file.
static void SaveModuleInterfaceArgs(ModuleInterfaceOptions &Opts,
FrontendOptions &FOpts,
ArgList &Args, DiagnosticEngine &Diags) {
if (!FOpts.InputsAndOutputs.hasModuleInterfaceOutputPath())
return;
struct RenderedInterfaceArgs {
ArgStringList Standard = {};
ArgStringList Ignorable = {};
};
RenderedInterfaceArgs PublicArgs{};
RenderedInterfaceArgs PrivateArgs{};
RenderedInterfaceArgs PackageArgs{};
auto interfaceArgListForArg = [&](Arg *A) -> ArgStringList & {
bool ignorable =
A->getOption().hasFlag(options::ModuleInterfaceOptionIgnorable);
if (IsPackageInterfaceFlag(A, Args))
return ignorable ? PackageArgs.Ignorable : PackageArgs.Standard;
if (IsPrivateInterfaceFlag(A, Args))
return ignorable ? PrivateArgs.Ignorable : PrivateArgs.Standard;
return ignorable ? PublicArgs.Ignorable : PublicArgs.Standard;
};
for (auto A : Args) {
if (!ShouldIncludeModuleInterfaceArg(A))
continue;
ArgStringList &ArgList = interfaceArgListForArg(A);
A->render(Args, ArgList);
}
auto updateInterfaceOpts = [](ModuleInterfaceOptions::InterfaceFlags &Flags,
RenderedInterfaceArgs &RenderedArgs) {
auto printFlags = [](std::string &str, ArgStringList argList) {
llvm::raw_string_ostream OS(str);
interleave(
argList,
[&](const char *Argument) { PrintArg(OS, Argument, StringRef()); },
[&] { OS << " "; });
};
printFlags(Flags.Flags, RenderedArgs.Standard);
printFlags(Flags.IgnorableFlags, RenderedArgs.Ignorable);
};
updateInterfaceOpts(Opts.PublicFlags, PublicArgs);
updateInterfaceOpts(Opts.PrivateFlags, PrivateArgs);
updateInterfaceOpts(Opts.PackageFlags, PackageArgs);
}
enum class CxxCompatMode {
invalid,
enabled,
off
};
static std::pair<CxxCompatMode, version::Version>
validateCxxInteropCompatibilityMode(StringRef mode) {
if (mode == "off")
return {CxxCompatMode::off, {}};
if (mode == "default")
return {CxxCompatMode::enabled, {}};
if (mode == "upcoming-swift")
return {CxxCompatMode::enabled,
version::Version({version::getUpcomingCxxInteropCompatVersion()})};
if (mode == "swift-6")
return {CxxCompatMode::enabled, version::Version({6})};
// Swift-5.9 corresponds to the Swift 5 language mode when
// Swift 5 is the default language version.
if (mode == "swift-5.9")
return {CxxCompatMode::enabled, version::Version({5})};
// Note: If this is updated, corresponding code in
// InterfaceSubContextDelegateImpl::InterfaceSubContextDelegateImpl needs
// to be updated also.
return {CxxCompatMode::invalid, {}};
}
static void diagnoseCxxInteropCompatMode(Arg *verArg, ArgList &Args,
DiagnosticEngine &diags) {
// General invalid argument error
diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
verArg->getAsString(Args), verArg->getValue());
// Note valid C++ interoperability modes.
auto validVers = {llvm::StringRef("off"), llvm::StringRef("default"),
llvm::StringRef("swift-6"), llvm::StringRef("swift-5.9")};
auto versStr = "'" + llvm::join(validVers, "', '") + "'";
diags.diagnose(SourceLoc(), diag::valid_cxx_interop_modes, versStr);
}
void LangOptions::setCxxInteropFromArgs(ArgList &Args,
swift::DiagnosticEngine &Diags) {
if (Arg *A = Args.getLastArg(options::OPT_cxx_interoperability_mode)) {
if (Args.hasArg(options::OPT_enable_experimental_cxx_interop)) {
Diags.diagnose(SourceLoc(), diag::dont_enable_interop_and_compat);
}
auto interopCompatMode = validateCxxInteropCompatibilityMode(A->getValue());
EnableCXXInterop |=
(interopCompatMode.first == CxxCompatMode::enabled);
if (EnableCXXInterop) {
cxxInteropCompatVersion = interopCompatMode.second;
// The default is tied to the current language version.
if (cxxInteropCompatVersion.empty())
cxxInteropCompatVersion =
EffectiveLanguageVersion.asMajorVersion();
}
if (interopCompatMode.first == CxxCompatMode::invalid)
diagnoseCxxInteropCompatMode(A, Args, Diags);
}
if (Args.hasArg(options::OPT_enable_experimental_cxx_interop)) {
Diags.diagnose(SourceLoc(), diag::enable_interop_flag_deprecated);
Diags.diagnose(SourceLoc(), diag::swift_will_maintain_compat);
EnableCXXInterop |= true;
// Using the deprecated option only forces the 'swift-5.9' compat
// mode.
if (cxxInteropCompatVersion.empty())
cxxInteropCompatVersion =
validateCxxInteropCompatibilityMode("swift-5.9").second;
}
}
static std::optional<swift::StrictConcurrency>
parseStrictConcurrency(StringRef value) {
return llvm::StringSwitch<std::optional<swift::StrictConcurrency>>(value)
.Case("minimal", swift::StrictConcurrency::Minimal)
.Case("targeted", swift::StrictConcurrency::Targeted)
.Case("complete", swift::StrictConcurrency::Complete)
.Default(std::nullopt);
}
static bool ParseCASArgs(CASOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags,
const FrontendOptions &FrontendOpts) {
using namespace options;
Opts.EnableCaching |= Args.hasArg(OPT_cache_compile_job);
Opts.EnableCachingRemarks |= Args.hasArg(OPT_cache_remarks);
Opts.CacheSkipReplay |= Args.hasArg(OPT_cache_disable_replay);
if (const Arg *A = Args.getLastArg(OPT_cas_path))
Opts.CASOpts.CASPath = A->getValue();
else if (Opts.CASOpts.CASPath.empty())
Opts.CASOpts.CASPath = llvm::cas::getDefaultOnDiskCASPath();
if (const Arg *A = Args.getLastArg(OPT_cas_plugin_path))
Opts.CASOpts.PluginPath = A->getValue();
for (StringRef Opt : Args.getAllArgValues(OPT_cas_plugin_option)) {
StringRef Name, Value;
std::tie(Name, Value) = Opt.split('=');
Opts.CASOpts.PluginOptions.emplace_back(std::string(Name),
std::string(Value));
}
for (const auto &A : Args.getAllArgValues(OPT_cas_fs))
Opts.CASFSRootIDs.emplace_back(A);
for (const auto &A : Args.getAllArgValues(OPT_clang_include_tree_root))
Opts.ClangIncludeTrees.emplace_back(A);
for (const auto &A : Args.getAllArgValues(OPT_clang_include_tree_filelist))
Opts.ClangIncludeTreeFileList.emplace_back(A);
if (const Arg *A = Args.getLastArg(OPT_input_file_key))
Opts.InputFileKey = A->getValue();
if (const Arg*A = Args.getLastArg(OPT_bridging_header_pch_key))
Opts.BridgingHeaderPCHCacheKey = A->getValue();
if (!Opts.CASFSRootIDs.empty() || !Opts.ClangIncludeTrees.empty() ||
!Opts.ClangIncludeTreeFileList.empty())
Opts.HasImmutableFileSystem = true;
return false;
}
static bool ParseEnabledFeatureArgs(LangOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags,
const FrontendOptions &FrontendOpts) {
using namespace options;
bool HadError = false;
// Enable feature upcoming/experimental features if requested. However, leave
// a feature disabled if an -enable-upcoming-feature flag is superseded by a
// -disable-upcoming-feature flag. Since only the last flag specified is
// honored, we iterate over them in reverse order.
std::vector<StringRef> psuedoFeatures;
llvm::SmallSet<Feature, 8> seenFeatures;
for (const Arg *A : Args.filtered_reverse(
OPT_enable_experimental_feature, OPT_disable_experimental_feature,
OPT_enable_upcoming_feature, OPT_disable_upcoming_feature)) {
auto &option = A->getOption();
const StringRef argValue = A->getValue();
bool isEnableUpcomingFeatureFlag =
option.matches(OPT_enable_upcoming_feature);
bool isUpcomingFeatureFlag = isEnableUpcomingFeatureFlag ||
option.matches(OPT_disable_upcoming_feature);
bool isEnableFeatureFlag = isEnableUpcomingFeatureFlag ||
option.matches(OPT_enable_experimental_feature);
// Collect some special case pseudo-features which should be processed
// separately.
if (argValue.starts_with("StrictConcurrency") ||
argValue.starts_with("AvailabilityMacro=")) {
if (isEnableFeatureFlag)
psuedoFeatures.push_back(argValue);
continue;
}
// For all other features, the argument format is `<name>[:adoption]`.
StringRef featureName;
std::optional<StringRef> featureMode;
std::tie(featureName, featureMode) = argValue.rsplit(':');
if (featureMode.value().empty()) {
featureMode = std::nullopt;
}
auto feature = getUpcomingFeature(featureName);
if (feature) {
// Diagnose upcoming features enabled with -enable-experimental-feature.
if (!isUpcomingFeatureFlag)
Diags.diagnose(SourceLoc(), diag::feature_not_experimental, featureName,
isEnableFeatureFlag);
} else {
// If -enable-upcoming-feature was used and an upcoming feature was not
// found, diagnose and continue.
if (isUpcomingFeatureFlag) {
Diags.diagnose(SourceLoc(), diag::unrecognized_feature, featureName,
/*upcoming=*/true);
continue;
}
// If the feature is also not a recognized experimental feature, skip it.
feature = getExperimentalFeature(featureName);
if (!feature) {
Diags.diagnose(SourceLoc(), diag::unrecognized_feature, featureName,
/*upcoming=*/false);
continue;
}
}
// If the current language mode enables the feature by default then
// diagnose and skip it.
if (auto firstVersion = getFeatureLanguageVersion(*feature)) {
if (Opts.isSwiftVersionAtLeast(*firstVersion)) {
Diags.diagnose(SourceLoc(),
diag::warning_upcoming_feature_on_by_default,
getFeatureName(*feature), *firstVersion);
continue;
}
}
// If this is a known experimental feature, allow it in +Asserts
// (non-release) builds for testing purposes.
if (Opts.RestrictNonProductionExperimentalFeatures &&
!isFeatureAvailableInProduction(*feature)) {
Diags.diagnose(SourceLoc(),
diag::experimental_not_supported_in_production,
featureName);
HadError = true;
continue;
}
if (featureMode) {
if (isEnableFeatureFlag) {
const auto isAdoptable = isFeatureAdoptable(*feature);
// Diagnose an invalid mode.
StringRef validModeName = "adoption";
if (*featureMode != validModeName) {
Diags.diagnose(SourceLoc(), diag::invalid_feature_mode, *featureMode,
featureName,
/*didYouMean=*/validModeName,
/*showDidYouMean=*/isAdoptable);
continue;
}
if (!isAdoptable) {
Diags.diagnose(SourceLoc(),
diag::feature_does_not_support_adoption_mode,
featureName);
continue;
}
} else {
// `-disable-*-feature` flags do not support a mode specifier.
Diags.diagnose(SourceLoc(), diag::cannot_disable_feature_with_mode,
option.getPrefixedName(), argValue);
continue;
}
}
// Skip features that are already enabled or disabled.
if (!seenFeatures.insert(*feature).second)
continue;
// Enable the feature if requested.
if (isEnableFeatureFlag)
Opts.enableFeature(*feature, /*forAdoption=*/featureMode.has_value());
}
// Since pseudo-features don't have a boolean on/off state, process them in
// the order they were specified on the command line.
for (auto featureName = psuedoFeatures.rbegin(), end = psuedoFeatures.rend();
featureName != end; ++featureName) {
// Allow StrictConcurrency to have a value that corresponds to the
// -strict-concurrency=<blah> settings.
if (featureName->starts_with("StrictConcurrency")) {
auto decomposed = featureName->split("=");
if (decomposed.first == "StrictConcurrency") {
if (decomposed.second == "") {
Opts.StrictConcurrencyLevel = StrictConcurrency::Complete;
} else if (auto level = parseStrictConcurrency(decomposed.second)) {
Opts.StrictConcurrencyLevel = *level;
}
}
continue;
}
// Hack: In order to support using availability macros in SPM packages, we
// need to be able to use:
// .enableExperimentalFeature("AvailabilityMacro='...'")
// within the package manifest and the feature recognizer can't recognize
// this form of feature, so specially handle it here until features can
// maybe have extra arguments in the future.
if (featureName->starts_with("AvailabilityMacro=")) {
auto availability = featureName->split("=").second;
Opts.AvailabilityMacros.push_back(availability.str());
continue;
}
}
// Map historical flags over to experimental features. We do this for all
// compilers because that's how existing experimental feature flags work.
if (Args.hasArg(OPT_enable_experimental_static_assert))
Opts.enableFeature(Feature::StaticAssert);
if (Args.hasArg(OPT_enable_experimental_named_opaque_types))
Opts.enableFeature(Feature::NamedOpaqueTypes);
if (Args.hasArg(OPT_enable_experimental_flow_sensitive_concurrent_captures))
Opts.enableFeature(Feature::FlowSensitiveConcurrencyCaptures);
if (Args.hasArg(OPT_enable_experimental_move_only)) {
// FIXME: drop addition of Feature::MoveOnly once its queries are gone.
Opts.enableFeature(Feature::MoveOnly);
Opts.enableFeature(Feature::NoImplicitCopy);
Opts.enableFeature(Feature::OldOwnershipOperatorSpellings);
}
if (Args.hasArg(OPT_enable_experimental_forward_mode_differentiation))
Opts.enableFeature(Feature::ForwardModeDifferentiation);
if (Args.hasArg(OPT_enable_experimental_additive_arithmetic_derivation))
Opts.enableFeature(Feature::AdditiveArithmeticDerivedConformances);
if (Args.hasArg(OPT_enable_experimental_opaque_type_erasure))
Opts.enableFeature(Feature::OpaqueTypeErasure);
if (Args.hasArg(OPT_enable_builtin_module))
Opts.enableFeature(Feature::BuiltinModule);
Opts.enableFeature(Feature::LayoutPrespecialization);
if (Args.hasArg(OPT_strict_memory_safety))
Opts.enableFeature(Feature::StrictMemorySafety);
return HadError;
}
static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
DiagnosticEngine &Diags,
const FrontendOptions &FrontendOpts) {
using namespace options;
bool buildingFromInterface =
FrontendOptions::doesActionBuildModuleFromInterface(
FrontendOpts.RequestedAction);
bool HadError = false;
if (auto A = Args.getLastArg(OPT_swift_version)) {
auto vers =
VersionParser::parseVersionString(A->getValue(), SourceLoc(), &Diags);
bool isValid = false;
if (vers.has_value()) {
if (auto effectiveVers = vers.value().getEffectiveLanguageVersion()) {
Opts.EffectiveLanguageVersion = effectiveVers.value();
isValid = true;
}
}
if (!isValid)
diagnoseSwiftVersion(vers, A, Args, Diags);
}
if (auto A = Args.getLastArg(OPT_package_description_version)) {
auto vers =
VersionParser::parseVersionString(A->getValue(), SourceLoc(), &Diags);
if (vers.has_value()) {
Opts.PackageDescriptionVersion = vers.value();
} else {
return true;
}
}
Opts.AttachCommentsToDecls |= Args.hasArg(OPT_dump_api_path);
Opts.UseMalloc |= Args.hasArg(OPT_use_malloc);
Opts.EnableExperimentalConcurrency |=
Args.hasArg(OPT_enable_experimental_concurrency);
Opts.DisableExperimentalClangImporterDiagnostics |=
Args.hasArg(OPT_disable_experimental_clang_importer_diagnostics);
Opts.EnableExperimentalEagerClangModuleDiagnostics |=
!Args.hasArg(OPT_disable_experimental_clang_importer_diagnostics) &&
Args.hasArg(OPT_enable_experimental_eager_clang_module_diagnostics);
Opts.DisableNamedLazyImportAsMemberLoading |=
Args.hasArg(OPT_disable_named_lazy_import_as_member_loading);
Opts.DisableImplicitConcurrencyModuleImport |=
Args.hasArg(OPT_disable_implicit_concurrency_module_import);
Opts.DisableImplicitStringProcessingModuleImport |=
Args.hasArg(OPT_disable_implicit_string_processing_module_import);
Opts.DisableImplicitCxxModuleImport |=
Args.hasArg(OPT_disable_implicit_cxx_module_import);
if (Args.hasArg(OPT_enable_experimental_async_top_level))
Diags.diagnose(SourceLoc(), diag::warn_flag_deprecated,
"-enable-experimental-async-top-level");
Opts.DiagnoseInvalidEphemeralnessAsError |=
Args.hasArg(OPT_enable_invalid_ephemeralness_as_error);
if (auto A = Args.getLastArg(OPT_enable_deserialization_recovery,
OPT_disable_deserialization_recovery)) {
Opts.EnableDeserializationRecovery
= A->getOption().matches(OPT_enable_deserialization_recovery);
}
if (auto A = Args.getLastArg(OPT_enable_deserialization_safety,
OPT_disable_deserialization_safety)) {
Opts.EnableDeserializationSafety