source: src/main.cc@ 2686bc7

ADT ast-experimental pthread-emulation qualifiedEnum
Last change on this file since 2686bc7 was 4ec9513, checked in by Andrew Beach <ajbeach@…>, 3 years ago

Converted validate C, including adding DimensionExpr to the new ast.

  • Property mode set to 100644
File size: 32.2 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// main.cc --
8//
9// Author : Peter Buhr and Rob Schluntz
10// Created On : Fri May 15 23:12:02 2015
11// Last Modified By : Andrew Beach
12// Last Modified On : Wed Apr 13 11:11:00 2022
13// Update Count : 672
14//
15
16#include <cxxabi.h> // for __cxa_demangle
17#include <execinfo.h> // for backtrace, backtrace_symbols
18#include <getopt.h> // for no_argument, optind, geto...
19#include <cassert> // for assertf
20#include <cstdio> // for fopen, FILE, fclose, stdin
21#include <cstdlib> // for exit, free, abort, EXIT_F...
22#include <csignal> // for signal, SIGABRT, SIGSEGV
23#include <cstring> // for index
24#include <fstream> // for ofstream
25#include <iostream> // for operator<<, basic_ostream
26#include <iomanip>
27#include <iterator> // for back_inserter
28#include <list> // for list
29#include <string> // for char_traits, operator<<
30
31using namespace std;
32
33#include "AST/Convert.hpp"
34#include "CompilationState.h"
35#include "../config.h" // for CFA_LIBDIR
36#include "CodeGen/FixMain.h" // for FixMain
37#include "CodeGen/FixNames.h" // for fixNames
38#include "CodeGen/Generate.h" // for generate
39#include "CodeGen/LinkOnce.h" // for translateLinkOnce
40#include "CodeTools/DeclStats.h" // for printDeclStats
41#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
42#include "CodeTools/TrackLoc.h" // for fillLocations
43#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
44#include "Common/CompilerError.h" // for CompilerError
45#include "Common/DeclStats.hpp" // for printDeclStats
46#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
47#include "Common/Stats.h"
48#include "Common/PassVisitor.h"
49#include "Common/SemanticError.h" // for SemanticError
50#include "Common/UnimplementedError.h" // for UnimplementedError
51#include "Common/utility.h" // for deleteAll, filter, printAll
52#include "Concurrency/Keywords.h" // for implementMutex, implement...
53#include "Concurrency/Waitfor.h" // for generateWaitfor
54#include "ControlStruct/ExceptDecl.h" // for translateExcept
55#include "ControlStruct/ExceptTranslate.h" // for translateEHM
56#include "ControlStruct/FixLabels.hpp" // for fixLabels
57#include "ControlStruct/HoistControlDecls.hpp" // hoistControlDecls
58#include "ControlStruct/Mutate.h" // for mutate
59#include "GenPoly/Box.h" // for box
60#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
61#include "GenPoly/Lvalue.h" // for convertLvalue
62#include "GenPoly/Specialize.h" // for convertSpecializations
63#include "InitTweak/FixInit.h" // for fix
64#include "InitTweak/GenInit.h" // for genInit
65#include "MakeLibCfa.h" // for makeLibCfa
66#include "Parser/ParseNode.h" // for DeclarationNode, buildList
67#include "Parser/TypedefTable.h" // for TypedefTable
68#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
69#include "ResolvExpr/CandidatePrinter.hpp" // for printCandidates
70#include "ResolvExpr/Resolver.h" // for resolve
71#include "SymTab/Validate.h" // for validate
72#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
73#include "SynTree/Declaration.h" // for Declaration
74#include "SynTree/Visitor.h" // for acceptAll
75#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
76#include "Validate/Autogen.hpp" // for autogenerateRoutines
77#include "Validate/GenericParameter.hpp" // for fillGenericParameters, tr...
78#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
79#include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
80#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
81#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
82#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
83#include "Validate/ReturnCheck.hpp" // for checkReturnStatements
84#include "Virtual/ExpandCasts.h" // for expandCasts
85
86static void NewPass( const char * const name ) {
87 Stats::Heap::newPass( name );
88 using namespace Stats::Counters;
89 {
90 static auto group = build<CounterGroup>( "Pass Visitor" );
91 auto pass = build<CounterGroup>( name, group );
92 pass_visitor_stats.depth = 0;
93 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
94 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
95 }
96 {
97 static auto group = build<CounterGroup>( "Syntax Node" );
98 auto pass = build<CounterGroup>( name, group );
99 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
100 }
101}
102
103#define PASS( name, pass ) \
104 if ( errorp ) { cerr << name << endl; } \
105 NewPass(name); \
106 Stats::Time::StartBlock(name); \
107 pass; \
108 Stats::Time::StopBlock();
109
110LinkageSpec::Spec linkage = LinkageSpec::Cforall;
111TypedefTable typedefTable;
112DeclarationNode * parseTree = nullptr; // program parse tree
113
114static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
115
116static string PreludeDirector = "";
117
118static void parse_cmdline( int argc, char * argv[] );
119static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
120static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
121static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
122
123static void backtrace( int start ) { // skip first N stack frames
124 enum { Frames = 50, }; // maximum number of stack frames
125 void * array[Frames];
126 size_t size = ::backtrace( array, Frames );
127 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
128
129 *index( messages[0], '(' ) = '\0'; // find executable name
130 cerr << "Stack back trace for: " << messages[0] << endl;
131
132 // skip last 2 stack frames after main
133 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
134 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
135
136 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
137 if ( *p == '(' ) {
138 mangled_name = p;
139 } else if ( *p == '+' ) {
140 offset_begin = p;
141 } else if ( *p == ')' ) {
142 offset_end = p;
143 break;
144 } // if
145 } // for
146
147 // if line contains symbol, attempt to demangle
148 int frameNo = i - start;
149 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
150 *mangled_name++ = '\0'; // delimit strings
151 *offset_begin++ = '\0';
152 *offset_end++ = '\0';
153
154 int status;
155 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
156 // bug in __cxa_demangle for single-character lower-case non-mangled names
157 if ( status == 0 ) { // demangling successful ?
158 cerr << "(" << frameNo << ") " << messages[i] << " : "
159 << real_name << "+" << offset_begin << offset_end << endl;
160 } else { // otherwise, output mangled name
161 cerr << "(" << frameNo << ") " << messages[i] << " : "
162 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
163 } // if
164
165 free( real_name );
166 } else { // otherwise, print the whole line
167 cerr << "(" << frameNo << ") " << messages[i] << endl;
168 } // if
169 } // for
170
171 free( messages );
172} // backtrace
173
174#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
175
176static void _Signal(struct sigaction & act, int sig, int flags ) {
177 act.sa_flags = flags;
178
179 if ( sigaction( sig, &act, nullptr ) == -1 ) {
180 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
181 _exit( EXIT_FAILURE );
182 } // if
183}
184
185static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
186 struct sigaction act;
187 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
188 _Signal(act, sig, flags);
189} // Signal
190
191static void Signal( int sig, void (* handler)(int), int flags ) {
192 struct sigaction act;
193 act.sa_handler = handler;
194 _Signal(act, sig, flags);
195} // Signal
196
197static void sigSegvBusHandler( SIGPARMS ) {
198 if ( sfp->si_addr == nullptr ) {
199 cerr << "Null pointer (nullptr) dereference." << endl;
200 } else {
201 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
202 << "Possible cause is reading outside the address space or writing to a protected area within the address space with an invalid pointer or subscript." << endl;
203 } // if
204 backtrace( 2 ); // skip first 2 stack frames
205 abort(); // cause core dump for debugging
206} // sigSegvBusHandler
207
208static void sigFpeHandler( SIGPARMS ) {
209 const char * msg;
210
211 switch ( sfp->si_code ) {
212 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
213 case FPE_FLTOVF: msg = "overflow"; break;
214 case FPE_FLTUND: msg = "underflow"; break;
215 case FPE_FLTRES: msg = "inexact result"; break;
216 case FPE_FLTINV: msg = "invalid operation"; break;
217 default: msg = "unknown";
218 } // choose
219 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
220 << "Possible cause is constant-expression evaluation invalid." << endl;
221 backtrace( 2 ); // skip first 2 stack frames
222 abort(); // cause core dump for debugging
223} // sigFpeHandler
224
225static void sigAbortHandler( SIGPARMS ) {
226 backtrace( 6 ); // skip first 6 stack frames
227 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
228 raise( SIGABRT ); // reraise SIGABRT
229} // sigAbortHandler
230
231int main( int argc, char * argv[] ) {
232 FILE * input; // use FILE rather than istream because yyin is FILE
233 ostream * output = & cout;
234 list< Declaration * > translationUnit;
235
236 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
237 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
238 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
239 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
240
241 // cout << "main" << endl;
242 // for ( int i = 0; i < argc; i += 1 ) {
243 // cout << '\t' << argv[i] << endl;
244 // } // for
245
246 parse_cmdline( argc, argv ); // process command-line arguments
247 CodeGen::FixMain::setReplaceMain( !nomainp );
248
249 if ( waiting_for_gdb ) {
250 cerr << "Waiting for gdb" << endl;
251 cerr << "run :" << endl;
252 cerr << " gdb attach " << getpid() << endl;
253 raise(SIGSTOP);
254 } // if
255
256 try {
257 // choose to read the program from a file or stdin
258 if ( optind < argc ) { // any commands after the flags ? => input file name
259 input = fopen( argv[ optind ], "r" );
260 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
261 optind += 1;
262 } else { // no input file name
263 input = stdin;
264 } // if
265
266 Stats::Time::StartGlobal();
267 NewPass("Parse");
268 Stats::Time::StartBlock("Parse");
269
270 // read in the builtins, extras, and the prelude
271 if ( ! nopreludep ) { // include gcc builtins
272 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
273
274 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
275
276 // Read to gcc builtins, if not generating the cfa library
277 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
278 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
279 parse( gcc_builtins, LinkageSpec::Compiler );
280
281 // read the extra prelude in, if not generating the cfa library
282 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
283 assertf( extras, "cannot open extras.cf\n" );
284 parse( extras, LinkageSpec::BuiltinC );
285
286 if ( ! libcfap ) {
287 // read the prelude in, if not generating the cfa library
288 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
289 assertf( prelude, "cannot open prelude.cfa\n" );
290 parse( prelude, LinkageSpec::Intrinsic );
291
292 // Read to cfa builtins, if not generating the cfa library
293 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
294 assertf( builtins, "cannot open builtins.cf\n" );
295 parse( builtins, LinkageSpec::BuiltinCFA );
296 } // if
297 } // if
298
299 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
300
301 if ( parsep ) {
302 parseTree->printList( cout );
303 delete parseTree;
304 return EXIT_SUCCESS;
305 } // if
306
307 buildList( parseTree, translationUnit );
308 delete parseTree;
309 parseTree = nullptr;
310
311 if ( astp ) {
312 dump( translationUnit );
313 return EXIT_SUCCESS;
314 } // if
315
316 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
317 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
318 // works okay for now.
319 CodeTools::fillLocations( translationUnit );
320 Stats::Time::StopBlock();
321
322 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
323 if ( exdeclp ) {
324 dump( translationUnit );
325 return EXIT_SUCCESS;
326 } // if
327
328 // add the assignment statement after the initialization of a type parameter
329 PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
330 PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
331
332 CodeTools::fillLocations( translationUnit );
333
334 if( useNewAST ) {
335 CodeTools::fillLocations( translationUnit );
336
337 if (Stats::Counters::enabled) {
338 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
339 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
340 }
341 auto transUnit = convert( move( translationUnit ) );
342
343 forceFillCodeLocations( transUnit );
344
345 // Check as early as possible. Can't happen before
346 // LinkReferenceToType, observed failing when attempted
347 // before eliminateTypedef
348 PASS( "Validate Generic Parameters", Validate::fillGenericParameters( transUnit ) );
349
350 PASS( "Translate Dimensions", Validate::translateDimensionParameters( transUnit ) );
351 PASS( "Check Function Returns", Validate::checkReturnStatements( transUnit ) );
352
353 // Must happen before Autogen.
354 PASS( "Fix Return Statements", InitTweak::fixReturnStatements( transUnit ) );
355
356 PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords( transUnit ) );
357
358 // Must be after implement concurrent keywords; because uniqueIds
359 // must be set on declaration before resolution.
360 // Must happen before autogen routines are added.
361 PASS( "Forall Pointer Decay", Validate::decayForallPointers( transUnit ) );
362
363 // Must happen before autogen routines are added.
364 PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
365
366 // Must be after enum and pointer decay.
367 // Must be before compound literals.
368 PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
369
370 PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
371 PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
372 PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
373 PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
374 PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
375 PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
376
377 if ( symtabp ) {
378 return EXIT_SUCCESS;
379 } // if
380
381 if ( expraltp ) {
382 ResolvExpr::printCandidates( transUnit );
383 return EXIT_SUCCESS;
384 } // if
385
386 if ( validp ) {
387 dump( move( transUnit ) );
388 return EXIT_SUCCESS;
389 } // if
390
391 PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
392 PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
393 PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
394 PASS( "Gen Init", InitTweak::genInit( transUnit ) );
395 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
396
397 if ( libcfap ) {
398 // Generate the bodies of cfa library functions.
399 LibCfa::makeLibCfa( transUnit );
400 } // if
401
402 if ( declstatsp ) {
403 printDeclStats( transUnit );
404 return EXIT_SUCCESS;
405 } // if
406
407 if ( bresolvep ) {
408 dump( move( transUnit ) );
409 return EXIT_SUCCESS;
410 } // if
411
412 if ( resolvprotop ) {
413 dumpAsResolverProto( transUnit );
414 return EXIT_SUCCESS;
415 } // if
416
417 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
418 if ( exprp ) {
419 dump( move( transUnit ) );
420 return EXIT_SUCCESS;
421 } // if
422
423 forceFillCodeLocations( transUnit );
424
425 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
426
427 // fix ObjectDecl - replaces ConstructorInit nodes
428 if ( ctorinitp ) {
429 dump( move( transUnit ) );
430 return EXIT_SUCCESS;
431 } // if
432
433 // Currently not working due to unresolved issues with UniqueExpr
434 PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( transUnit ) ); // xxx - is this the right place for this? want to expand ASAP so tha, sequent passes don't need to worry about double-visiting a unique expr - needs to go after InitTweak::fix so that copy constructed return declarations are reused
435
436 PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
437
438 translationUnit = convert( move( transUnit ) );
439 } else {
440 PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
441 PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
442 PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
443 PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
444
445 if ( symtabp ) {
446 deleteAll( translationUnit );
447 return EXIT_SUCCESS;
448 } // if
449
450 if ( expraltp ) {
451 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
452 acceptAll( translationUnit, printer );
453 return EXIT_SUCCESS;
454 } // if
455
456 if ( validp ) {
457 dump( translationUnit );
458 return EXIT_SUCCESS;
459 } // if
460
461 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
462 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
463 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
464 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
465 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
466
467 if ( libcfap ) {
468 // Generate the bodies of cfa library functions.
469 LibCfa::makeLibCfa( translationUnit );
470 } // if
471
472 if ( declstatsp ) {
473 CodeTools::printDeclStats( translationUnit );
474 deleteAll( translationUnit );
475 return EXIT_SUCCESS;
476 } // if
477
478 if ( bresolvep ) {
479 dump( translationUnit );
480 return EXIT_SUCCESS;
481 } // if
482
483 CodeTools::fillLocations( translationUnit );
484
485 if ( resolvprotop ) {
486 CodeTools::dumpAsResolvProto( translationUnit );
487 return EXIT_SUCCESS;
488 } // if
489
490 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
491 if ( exprp ) {
492 dump( translationUnit );
493 return EXIT_SUCCESS;
494 }
495
496 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
497
498 // fix ObjectDecl - replaces ConstructorInit nodes
499 if ( ctorinitp ) {
500 dump ( translationUnit );
501 return EXIT_SUCCESS;
502 } // if
503
504 PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( translationUnit ) ); // xxx - is this the right place for this? want to expand ASAP so tha, sequent passes don't need to worry about double-visiting a unique expr - needs to go after InitTweak::fix so that copy constructed return declarations are reused
505
506 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
507 }
508
509 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
510
511 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
512
513 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
514
515 if ( tuplep ) {
516 dump( translationUnit );
517 return EXIT_SUCCESS;
518 } // if
519
520 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
521
522 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
523 if ( genericsp ) {
524 dump( translationUnit );
525 return EXIT_SUCCESS;
526 } // if
527
528 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
529
530 if ( bboxp ) {
531 dump( translationUnit );
532 return EXIT_SUCCESS;
533 } // if
534 PASS( "Box", GenPoly::box( translationUnit ) );
535
536 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
537
538 // Code has been lowered to C, now we can start generation.
539
540 if ( bcodegenp ) {
541 dump( translationUnit );
542 return EXIT_SUCCESS;
543 } // if
544
545 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
546 output = new ofstream( argv[ optind ] );
547 } // if
548
549 CodeTools::fillLocations( translationUnit );
550 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
551
552 CodeGen::FixMain::fix( translationUnit, *output,
553 (PreludeDirector + "/bootloader.c").c_str() );
554 if ( output != &cout ) {
555 delete output;
556 } // if
557 } catch ( SemanticErrorException & e ) {
558 if ( errorp ) {
559 cerr << "---AST at error:---" << endl;
560 dump( translationUnit, cerr );
561 cerr << endl << "---End of AST, begin error message:---\n" << endl;
562 } // if
563 e.print();
564 if ( output != &cout ) {
565 delete output;
566 } // if
567 return EXIT_FAILURE;
568 } catch ( UnimplementedError & e ) {
569 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
570 if ( output != &cout ) {
571 delete output;
572 } // if
573 return EXIT_FAILURE;
574 } catch ( CompilerError & e ) {
575 cerr << "Compiler Error: " << e.get_what() << endl;
576 cerr << "(please report bugs to [REDACTED])" << endl;
577 if ( output != &cout ) {
578 delete output;
579 } // if
580 return EXIT_FAILURE;
581 } catch ( std::bad_alloc & ) {
582 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
583 backtrace( 1 );
584 abort();
585 } catch ( ... ) {
586 exception_ptr eptr = current_exception();
587 try {
588 if (eptr) {
589 rethrow_exception(eptr);
590 } else {
591 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
592 } // if
593 } catch( const exception & e ) {
594 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
595 } // try
596 return EXIT_FAILURE;
597 } // try
598
599 deleteAll( translationUnit );
600 Stats::print();
601 return EXIT_SUCCESS;
602} // main
603
604
605static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
606
607enum { PreludeDir = 128 };
608static struct option long_opts[] = {
609 { "colors", required_argument, nullptr, 'c' },
610 { "gdb", no_argument, nullptr, 'g' },
611 { "help", no_argument, nullptr, 'h' },
612 { "libcfa", no_argument, nullptr, 'l' },
613 { "linemarks", no_argument, nullptr, 'L' },
614 { "no-main", no_argument, 0, 'm' },
615 { "no-linemarks", no_argument, nullptr, 'N' },
616 { "no-prelude", no_argument, nullptr, 'n' },
617 { "prototypes", no_argument, nullptr, 'p' },
618 { "deterministic-out", no_argument, nullptr, 'd' },
619 { "old-ast", no_argument, nullptr, 'O'},
620 { "new-ast", no_argument, nullptr, 'A'},
621 { "print", required_argument, nullptr, 'P' },
622 { "prelude-dir", required_argument, nullptr, PreludeDir },
623 { "statistics", required_argument, nullptr, 'S' },
624 { "tree", no_argument, nullptr, 't' },
625 { "", no_argument, nullptr, 0 }, // -w
626 { "", no_argument, nullptr, 0 }, // -W
627 { "", no_argument, nullptr, 0 }, // -D
628 { nullptr, 0, nullptr, 0 }
629}; // long_opts
630
631static const char * description[] = {
632 "diagnostic color: never, always, auto", // -c
633 "wait for gdb to attach", // -g
634 "print translator help message", // -h
635 "generate libcfa.c", // -l
636 "generate line marks", // -L
637 "do not replace main", // -m
638 "do not generate line marks", // -N
639 "do not read prelude", // -n
640 "do not generate prelude prototypes => prelude not printed", // -p
641 "only print deterministic output", // -d
642 "Use the old-ast", // -O
643 "Use the new-ast", // -A
644 "print", // -P
645 "<directory> prelude directory for debug/nodebug", // no flag
646 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
647 "building cfa standard lib", // -t
648 "", // -w
649 "", // -W
650 "", // -D
651}; // description
652
653static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
654
655static struct Printopts {
656 const char * name;
657 int & flag;
658 int val;
659 const char * descript;
660} printopts[] = {
661 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
662 { "asterr", errorp, true, "print AST on error" },
663 { "declstats", declstatsp, true, "code property statistics" },
664 { "parse", yydebug, true, "yacc (parsing) debug information" },
665 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
666 { "rproto", resolvprotop, true, "resolver-proto instance" },
667 { "rsteps", resolvep, true, "print resolver steps" },
668 { "tree", parsep, true, "print parse tree" },
669 // code dumps
670 { "ast", astp, true, "print AST after parsing" },
671 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
672 { "symevt", symtabp, true, "print AST after symbol table events" },
673 { "altexpr", expraltp, true, "print alternatives for expressions" },
674 { "astdecl", validp, true, "print AST after declaration validation pass" },
675 { "resolver", bresolvep, true, "print AST before resolver step" },
676 { "astexpr", exprp, true, "print AST after expression analysis" },
677 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
678 { "tuple", tuplep, true, "print AST after tuple expansion" },
679 { "astgen", genericsp, true, "print AST after instantiate generics" },
680 { "box", bboxp, true, "print AST before box step" },
681 { "codegen", bcodegenp, true, "print AST before code generation" },
682};
683enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
684
685static void usage( char * argv[] ) {
686 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
687 int i = 0, j = 1; // j skips starting colon
688 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
689 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
690 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
691 cout << " -" << optstring[j] << ",";
692 } else { // no flag
693 j -= 1; // compensate
694 cout << " ";
695 } // if
696 cout << " --" << left << setw(12) << long_opts[i].name << " ";
697 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
698 cout << "one of: " << endl;
699 for ( int i = 0; i < printoptsSize; i += 1 ) {
700 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
701 } // for
702 } else {
703 cout << description[i] << endl;
704 } // if
705 } // if
706 if ( optstring[j + 1] == ':' ) j += 1;
707 } // for
708 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
709 exit( EXIT_FAILURE );
710} // usage
711
712static void parse_cmdline( int argc, char * argv[] ) {
713 opterr = 0; // (global) prevent getopt from printing error messages
714
715 bool Wsuppress = false, Werror = false;
716 int c;
717 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
718 switch ( c ) {
719 case 'c': // diagnostic colors
720 if ( strcmp( optarg, "always" ) == 0 ) {
721 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
722 } else if ( strcmp( optarg, "never" ) == 0 ) {
723 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
724 } else if ( strcmp( optarg, "auto" ) == 0 ) {
725 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
726 } // if
727 break;
728 case 'h': // help message
729 usage( argv ); // no return
730 break;
731 case 'l': // generate libcfa.c
732 libcfap = true;
733 break;
734 case 'L': // generate line marks
735 linemarks = true;
736 break;
737 case 'm': // do not replace main
738 nomainp = true;
739 break;
740 case 'N': // do not generate line marks
741 linemarks = false;
742 break;
743 case 'n': // do not read prelude
744 nopreludep = true;
745 break;
746 case 'p': // generate prototypes for prelude functions
747 genproto = true;
748 break;
749 case 'd': // don't print non-deterministic output
750 deterministic_output = true;
751 break;
752 case 'O': // don't print non-deterministic output
753 useNewAST = false;
754 break;
755 case 'A': // don't print non-deterministic output
756 useNewAST = true;
757 break;
758 case 'P': // print options
759 for ( int i = 0;; i += 1 ) {
760 if ( i == printoptsSize ) {
761 cout << "Unknown --print option " << optarg << endl;
762 goto Default;
763 } // if
764 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
765 printopts[i].flag = printopts[i].val;
766 break;
767 } // if
768 } // for
769 break;
770 case PreludeDir: // prelude directory for debug/nodebug, hidden
771 PreludeDirector = optarg;
772 break;
773 case 'S': // enable profiling information, argument comma separated list of names
774 Stats::parse_params( optarg );
775 break;
776 case 't': // building cfa stdlib
777 treep = true;
778 break;
779 case 'g': // wait for gdb
780 waiting_for_gdb = true;
781 break;
782 case 'w': // suppress all warnings, hidden
783 Wsuppress = true;
784 break;
785 case 'W': // coordinate gcc -W with CFA, hidden
786 if ( strcmp( optarg, "all" ) == 0 ) {
787 SemanticWarning_EnableAll();
788 } else if ( strcmp( optarg, "error" ) == 0 ) {
789 Werror = true;
790 } else {
791 char * warning = optarg;
792 Severity s;
793 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
794 warning += 3;
795 s = Severity::Suppress;
796 } else {
797 s = Severity::Warn;
798 } // if
799 SemanticWarning_Set( warning, s );
800 } // if
801 break;
802 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
803 break;
804 case '?': // unknown option
805 if ( optopt ) { // short option ?
806 cout << "Unknown option -" << (char)optopt << endl;
807 } else {
808 cout << "Unknown option " << argv[optind - 1] << endl;
809 } // if
810 goto Default;
811 case ':': // missing option
812 if ( optopt ) { // short option ?
813 cout << "Missing option for -" << (char)optopt << endl;
814 } else {
815 cout << "Missing option for " << argv[optind - 1] << endl;
816 } // if
817 goto Default;
818 Default:
819 default:
820 usage( argv ); // no return
821 } // switch
822 } // while
823
824 if ( Werror ) {
825 SemanticWarning_WarningAsError();
826 } // if
827 if ( Wsuppress ) {
828 SemanticWarning_SuppressAll();
829 } // if
830 // for ( const auto w : WarningFormats ) {
831 // cout << w.name << ' ' << (int)w.severity << endl;
832 // } // for
833} // parse_cmdline
834
835static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
836 extern int yyparse( void );
837 extern FILE * yyin;
838 extern int yylineno;
839
840 ::linkage = linkage; // set globals
841 yyin = input;
842 yylineno = 1;
843 int parseStatus = yyparse();
844
845 fclose( input );
846 if ( shouldExit || parseStatus != 0 ) {
847 exit( parseStatus );
848 } // if
849} // parse
850
851static bool notPrelude( Declaration * decl ) {
852 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
853} // notPrelude
854
855static void dump( list< Declaration * > & translationUnit, ostream & out ) {
856 list< Declaration * > decls;
857
858 if ( genproto ) {
859 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
860 } else {
861 decls = translationUnit;
862 } // if
863
864 // depending on commandline options, either generate code or dump the AST
865 if ( codegenp ) {
866 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
867 } else {
868 printAll( decls, out );
869 } // if
870 deleteAll( translationUnit );
871} // dump
872
873static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
874 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
875 dump( translationUnit, out );
876}
877
878// Local Variables: //
879// tab-width: 4 //
880// mode: c++ //
881// compile-command: "make install" //
882// End: //
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