source: src/main.cc@ 21fe17f

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum
Last change on this file since 21fe17f was b8ab91a, checked in by Andrew Beach <ajbeach@…>, 4 years ago

Fix Labels pass translated. This is fix label, mult-level exit and label generator.

  • Property mode set to 100644
File size: 28.5 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 : Fri Oct 29 16:34:00 2021
13// Update Count : 655
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/Waitfor.h" // for generateWaitfor
53#include "ControlStruct/ExceptDecl.h" // for translateExcept
54#include "ControlStruct/ExceptTranslate.h" // for translateEHM
55#include "ControlStruct/FixLabels.hpp" // for fixLabels
56#include "ControlStruct/Mutate.h" // for mutate
57#include "GenPoly/Box.h" // for box
58#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
59#include "GenPoly/Lvalue.h" // for convertLvalue
60#include "GenPoly/Specialize.h" // for convertSpecializations
61#include "InitTweak/FixInit.h" // for fix
62#include "InitTweak/GenInit.h" // for genInit
63#include "MakeLibCfa.h" // for makeLibCfa
64#include "Parser/ParseNode.h" // for DeclarationNode, buildList
65#include "Parser/TypedefTable.h" // for TypedefTable
66#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
67#include "ResolvExpr/Resolver.h" // for resolve
68#include "SymTab/Validate.h" // for validate
69#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
70#include "SynTree/Declaration.h" // for Declaration
71#include "SynTree/Visitor.h" // for acceptAll
72#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
73#include "Virtual/ExpandCasts.h" // for expandCasts
74
75
76static void NewPass( const char * const name ) {
77 Stats::Heap::newPass( name );
78 using namespace Stats::Counters;
79 {
80 static auto group = build<CounterGroup>( "Pass Visitor" );
81 auto pass = build<CounterGroup>( name, group );
82 pass_visitor_stats.depth = 0;
83 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
84 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
85 }
86 {
87 static auto group = build<CounterGroup>( "Syntax Node" );
88 auto pass = build<CounterGroup>( name, group );
89 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
90 }
91}
92
93#define PASS( name, pass ) \
94 if ( errorp ) { cerr << name << endl; } \
95 NewPass(name); \
96 Stats::Time::StartBlock(name); \
97 pass; \
98 Stats::Time::StopBlock();
99
100LinkageSpec::Spec linkage = LinkageSpec::Cforall;
101TypedefTable typedefTable;
102DeclarationNode * parseTree = nullptr; // program parse tree
103
104static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
105
106static string PreludeDirector = "";
107
108static void parse_cmdline( int argc, char * argv[] );
109static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
110static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
111static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
112
113static void backtrace( int start ) { // skip first N stack frames
114 enum { Frames = 50, }; // maximum number of stack frames
115 void * array[Frames];
116 size_t size = ::backtrace( array, Frames );
117 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
118
119 *index( messages[0], '(' ) = '\0'; // find executable name
120 cerr << "Stack back trace for: " << messages[0] << endl;
121
122 // skip last 2 stack frames after main
123 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
124 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
125
126 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
127 if ( *p == '(' ) {
128 mangled_name = p;
129 } else if ( *p == '+' ) {
130 offset_begin = p;
131 } else if ( *p == ')' ) {
132 offset_end = p;
133 break;
134 } // if
135 } // for
136
137 // if line contains symbol, attempt to demangle
138 int frameNo = i - start;
139 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
140 *mangled_name++ = '\0'; // delimit strings
141 *offset_begin++ = '\0';
142 *offset_end++ = '\0';
143
144 int status;
145 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
146 // bug in __cxa_demangle for single-character lower-case non-mangled names
147 if ( status == 0 ) { // demangling successful ?
148 cerr << "(" << frameNo << ") " << messages[i] << " : "
149 << real_name << "+" << offset_begin << offset_end << endl;
150 } else { // otherwise, output mangled name
151 cerr << "(" << frameNo << ") " << messages[i] << " : "
152 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
153 } // if
154
155 free( real_name );
156 } else { // otherwise, print the whole line
157 cerr << "(" << frameNo << ") " << messages[i] << endl;
158 } // if
159 } // for
160
161 free( messages );
162} // backtrace
163
164#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
165
166static void _Signal(struct sigaction & act, int sig, int flags ) {
167 act.sa_flags = flags;
168
169 if ( sigaction( sig, &act, nullptr ) == -1 ) {
170 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
171 _exit( EXIT_FAILURE );
172 } // if
173}
174
175static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
176 struct sigaction act;
177 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
178 _Signal(act, sig, flags);
179} // Signal
180
181static void Signal( int sig, void (* handler)(int), int flags ) {
182 struct sigaction act;
183 act.sa_handler = handler;
184 _Signal(act, sig, flags);
185} // Signal
186
187static void sigSegvBusHandler( SIGPARMS ) {
188 if ( sfp->si_addr == nullptr ) {
189 cerr << "Null pointer (nullptr) dereference." << endl;
190 } else {
191 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
192 << "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;
193 } // if
194 backtrace( 2 ); // skip first 2 stack frames
195 abort(); // cause core dump for debugging
196} // sigSegvBusHandler
197
198static void sigFpeHandler( SIGPARMS ) {
199 const char * msg;
200
201 switch ( sfp->si_code ) {
202 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
203 case FPE_FLTOVF: msg = "overflow"; break;
204 case FPE_FLTUND: msg = "underflow"; break;
205 case FPE_FLTRES: msg = "inexact result"; break;
206 case FPE_FLTINV: msg = "invalid operation"; break;
207 default: msg = "unknown";
208 } // choose
209 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
210 << "Possible cause is constant-expression evaluation invalid." << endl;
211 backtrace( 2 ); // skip first 2 stack frames
212 abort(); // cause core dump for debugging
213} // sigFpeHandler
214
215static void sigAbortHandler( SIGPARMS ) {
216 backtrace( 6 ); // skip first 6 stack frames
217 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
218 raise( SIGABRT ); // reraise SIGABRT
219} // sigAbortHandler
220
221int main( int argc, char * argv[] ) {
222 FILE * input; // use FILE rather than istream because yyin is FILE
223 ostream * output = & cout;
224 list< Declaration * > translationUnit;
225
226 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
227 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
228 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
229 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
230
231 // cout << "main" << endl;
232 // for ( int i = 0; i < argc; i += 1 ) {
233 // cout << '\t' << argv[i] << endl;
234 // } // for
235
236 parse_cmdline( argc, argv ); // process command-line arguments
237 CodeGen::FixMain::setReplaceMain( !nomainp );
238
239 if ( waiting_for_gdb ) {
240 cerr << "Waiting for gdb" << endl;
241 cerr << "run :" << endl;
242 cerr << " gdb attach " << getpid() << endl;
243 raise(SIGSTOP);
244 } // if
245
246 try {
247 // choose to read the program from a file or stdin
248 if ( optind < argc ) { // any commands after the flags ? => input file name
249 input = fopen( argv[ optind ], "r" );
250 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
251 optind += 1;
252 } else { // no input file name
253 input = stdin;
254 } // if
255
256 Stats::Time::StartGlobal();
257 NewPass("Parse");
258 Stats::Time::StartBlock("Parse");
259
260 // read in the builtins, extras, and the prelude
261 if ( ! nopreludep ) { // include gcc builtins
262 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
263
264 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
265
266 // Read to gcc builtins, if not generating the cfa library
267 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
268 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
269 parse( gcc_builtins, LinkageSpec::Compiler );
270
271 // read the extra prelude in, if not generating the cfa library
272 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
273 assertf( extras, "cannot open extras.cf\n" );
274 parse( extras, LinkageSpec::BuiltinC );
275
276 if ( ! libcfap ) {
277 // read the prelude in, if not generating the cfa library
278 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
279 assertf( prelude, "cannot open prelude.cfa\n" );
280 parse( prelude, LinkageSpec::Intrinsic );
281
282 // Read to cfa builtins, if not generating the cfa library
283 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
284 assertf( builtins, "cannot open builtins.cf\n" );
285 parse( builtins, LinkageSpec::BuiltinCFA );
286 } // if
287 } // if
288
289 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
290
291 if ( parsep ) {
292 parseTree->printList( cout );
293 delete parseTree;
294 return EXIT_SUCCESS;
295 } // if
296
297 buildList( parseTree, translationUnit );
298 delete parseTree;
299 parseTree = nullptr;
300
301 if ( astp ) {
302 dump( translationUnit );
303 return EXIT_SUCCESS;
304 } // if
305
306 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
307 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
308 // works okay for now.
309 CodeTools::fillLocations( translationUnit );
310 Stats::Time::StopBlock();
311
312 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
313 if ( exdeclp ) {
314 dump( translationUnit );
315 return EXIT_SUCCESS;
316 } // if
317
318 // add the assignment statement after the initialization of a type parameter
319 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
320 if ( symtabp ) {
321 deleteAll( translationUnit );
322 return EXIT_SUCCESS;
323 } // if
324
325 if ( expraltp ) {
326 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
327 acceptAll( translationUnit, printer );
328 return EXIT_SUCCESS;
329 } // if
330
331 if ( validp ) {
332 dump( translationUnit );
333 return EXIT_SUCCESS;
334 } // if
335
336 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
337
338 CodeTools::fillLocations( translationUnit );
339
340 if( useNewAST ) {
341 if (Stats::Counters::enabled) {
342 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
343 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
344 }
345 auto transUnit = convert( move( translationUnit ) );
346
347 forceFillCodeLocations( transUnit );
348
349 PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
350 PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
351 PASS( "Gen Init", InitTweak::genInit( transUnit ) );
352 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
353
354 if ( libcfap ) {
355 // Generate the bodies of cfa library functions.
356 LibCfa::makeLibCfa( transUnit );
357 } // if
358
359 if ( declstatsp ) {
360 printDeclStats( transUnit );
361 return EXIT_SUCCESS;
362 } // if
363
364 if ( bresolvep ) {
365 dump( move( transUnit ) );
366 return EXIT_SUCCESS;
367 } // if
368
369 if ( resolvprotop ) {
370 dumpAsResolverProto( transUnit );
371 return EXIT_SUCCESS;
372 } // if
373
374 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
375 if ( exprp ) {
376 dump( move( transUnit ) );
377 return EXIT_SUCCESS;
378 } // if
379
380 forceFillCodeLocations( transUnit );
381
382 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
383
384 translationUnit = convert( move( transUnit ) );
385 } else {
386 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
387 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
388 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
389 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
390
391 if ( libcfap ) {
392 // Generate the bodies of cfa library functions.
393 LibCfa::makeLibCfa( translationUnit );
394 } // if
395
396 if ( declstatsp ) {
397 CodeTools::printDeclStats( translationUnit );
398 deleteAll( translationUnit );
399 return EXIT_SUCCESS;
400 } // if
401
402 if ( bresolvep ) {
403 dump( translationUnit );
404 return EXIT_SUCCESS;
405 } // if
406
407 CodeTools::fillLocations( translationUnit );
408
409 if ( resolvprotop ) {
410 CodeTools::dumpAsResolvProto( translationUnit );
411 return EXIT_SUCCESS;
412 } // if
413
414 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
415 if ( exprp ) {
416 dump( translationUnit );
417 return EXIT_SUCCESS;
418 }
419
420 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
421 }
422
423 // fix ObjectDecl - replaces ConstructorInit nodes
424 if ( ctorinitp ) {
425 dump ( translationUnit );
426 return EXIT_SUCCESS;
427 } // if
428
429 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
430
431 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
432
433 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
434
435 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
436
437 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
438
439 if ( tuplep ) {
440 dump( translationUnit );
441 return EXIT_SUCCESS;
442 } // if
443
444 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
445
446 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
447 if ( genericsp ) {
448 dump( translationUnit );
449 return EXIT_SUCCESS;
450 } // if
451
452 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
453
454 if ( bboxp ) {
455 dump( translationUnit );
456 return EXIT_SUCCESS;
457 } // if
458 PASS( "Box", GenPoly::box( translationUnit ) );
459
460 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
461
462 // Code has been lowered to C, now we can start generation.
463
464 if ( bcodegenp ) {
465 dump( translationUnit );
466 return EXIT_SUCCESS;
467 } // if
468
469 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
470 output = new ofstream( argv[ optind ] );
471 } // if
472
473 CodeTools::fillLocations( translationUnit );
474 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
475
476 CodeGen::FixMain::fix( translationUnit, *output,
477 (PreludeDirector + "/bootloader.c").c_str() );
478 if ( output != &cout ) {
479 delete output;
480 } // if
481 } catch ( SemanticErrorException & e ) {
482 if ( errorp ) {
483 cerr << "---AST at error:---" << endl;
484 dump( translationUnit, cerr );
485 cerr << endl << "---End of AST, begin error message:---\n" << endl;
486 } // if
487 e.print();
488 if ( output != &cout ) {
489 delete output;
490 } // if
491 return EXIT_FAILURE;
492 } catch ( UnimplementedError & e ) {
493 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
494 if ( output != &cout ) {
495 delete output;
496 } // if
497 return EXIT_FAILURE;
498 } catch ( CompilerError & e ) {
499 cerr << "Compiler Error: " << e.get_what() << endl;
500 cerr << "(please report bugs to [REDACTED])" << endl;
501 if ( output != &cout ) {
502 delete output;
503 } // if
504 return EXIT_FAILURE;
505 } catch ( std::bad_alloc & ) {
506 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
507 backtrace( 1 );
508 abort();
509 } catch ( ... ) {
510 exception_ptr eptr = current_exception();
511 try {
512 if (eptr) {
513 rethrow_exception(eptr);
514 } else {
515 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
516 } // if
517 } catch( const exception & e ) {
518 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
519 } // try
520 return EXIT_FAILURE;
521 } // try
522
523 deleteAll( translationUnit );
524 Stats::print();
525 return EXIT_SUCCESS;
526} // main
527
528
529static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
530
531enum { PreludeDir = 128 };
532static struct option long_opts[] = {
533 { "colors", required_argument, nullptr, 'c' },
534 { "gdb", no_argument, nullptr, 'g' },
535 { "help", no_argument, nullptr, 'h' },
536 { "libcfa", no_argument, nullptr, 'l' },
537 { "linemarks", no_argument, nullptr, 'L' },
538 { "no-main", no_argument, 0, 'm' },
539 { "no-linemarks", no_argument, nullptr, 'N' },
540 { "no-prelude", no_argument, nullptr, 'n' },
541 { "prototypes", no_argument, nullptr, 'p' },
542 { "deterministic-out", no_argument, nullptr, 'd' },
543 { "old-ast", no_argument, nullptr, 'O'},
544 { "new-ast", no_argument, nullptr, 'A'},
545 { "print", required_argument, nullptr, 'P' },
546 { "prelude-dir", required_argument, nullptr, PreludeDir },
547 { "statistics", required_argument, nullptr, 'S' },
548 { "tree", no_argument, nullptr, 't' },
549 { "", no_argument, nullptr, 0 }, // -w
550 { "", no_argument, nullptr, 0 }, // -W
551 { "", no_argument, nullptr, 0 }, // -D
552 { nullptr, 0, nullptr, 0 }
553}; // long_opts
554
555static const char * description[] = {
556 "diagnostic color: never, always, auto", // -c
557 "wait for gdb to attach", // -g
558 "print translator help message", // -h
559 "generate libcfa.c", // -l
560 "generate line marks", // -L
561 "do not replace main", // -m
562 "do not generate line marks", // -N
563 "do not read prelude", // -n
564 "do not generate prelude prototypes => prelude not printed", // -p
565 "only print deterministic output", // -d
566 "Use the old-ast", // -O
567 "Use the new-ast", // -A
568 "print", // -P
569 "<directory> prelude directory for debug/nodebug", // no flag
570 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
571 "building cfa standard lib", // -t
572 "", // -w
573 "", // -W
574 "", // -D
575}; // description
576
577static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
578
579static struct Printopts {
580 const char * name;
581 int & flag;
582 int val;
583 const char * descript;
584} printopts[] = {
585 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
586 { "asterr", errorp, true, "print AST on error" },
587 { "declstats", declstatsp, true, "code property statistics" },
588 { "parse", yydebug, true, "yacc (parsing) debug information" },
589 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
590 { "rproto", resolvprotop, true, "resolver-proto instance" },
591 { "rsteps", resolvep, true, "print resolver steps" },
592 { "tree", parsep, true, "print parse tree" },
593 // code dumps
594 { "ast", astp, true, "print AST after parsing" },
595 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
596 { "symevt", symtabp, true, "print AST after symbol table events" },
597 { "altexpr", expraltp, true, "print alternatives for expressions" },
598 { "astdecl", validp, true, "print AST after declaration validation pass" },
599 { "resolver", bresolvep, true, "print AST before resolver step" },
600 { "astexpr", exprp, true, "print AST after expression analysis" },
601 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
602 { "tuple", tuplep, true, "print AST after tuple expansion" },
603 { "astgen", genericsp, true, "print AST after instantiate generics" },
604 { "box", bboxp, true, "print AST before box step" },
605 { "codegen", bcodegenp, true, "print AST before code generation" },
606};
607enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
608
609static void usage( char * argv[] ) {
610 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
611 int i = 0, j = 1; // j skips starting colon
612 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
613 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
614 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
615 cout << " -" << optstring[j] << ",";
616 } else { // no flag
617 j -= 1; // compensate
618 cout << " ";
619 } // if
620 cout << " --" << left << setw(12) << long_opts[i].name << " ";
621 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
622 cout << "one of: " << endl;
623 for ( int i = 0; i < printoptsSize; i += 1 ) {
624 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
625 } // for
626 } else {
627 cout << description[i] << endl;
628 } // if
629 } // if
630 if ( optstring[j + 1] == ':' ) j += 1;
631 } // for
632 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
633 exit( EXIT_FAILURE );
634} // usage
635
636static void parse_cmdline( int argc, char * argv[] ) {
637 opterr = 0; // (global) prevent getopt from printing error messages
638
639 bool Wsuppress = false, Werror = false;
640 int c;
641 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
642 switch ( c ) {
643 case 'c': // diagnostic colors
644 if ( strcmp( optarg, "always" ) == 0 ) {
645 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
646 } else if ( strcmp( optarg, "never" ) == 0 ) {
647 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
648 } else if ( strcmp( optarg, "auto" ) == 0 ) {
649 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
650 } // if
651 break;
652 case 'h': // help message
653 usage( argv ); // no return
654 break;
655 case 'l': // generate libcfa.c
656 libcfap = true;
657 break;
658 case 'L': // generate line marks
659 linemarks = true;
660 break;
661 case 'm': // do not replace main
662 nomainp = true;
663 break;
664 case 'N': // do not generate line marks
665 linemarks = false;
666 break;
667 case 'n': // do not read prelude
668 nopreludep = true;
669 break;
670 case 'p': // generate prototypes for prelude functions
671 genproto = true;
672 break;
673 case 'd': // don't print non-deterministic output
674 deterministic_output = true;
675 break;
676 case 'O': // don't print non-deterministic output
677 useNewAST = false;
678 break;
679 case 'A': // don't print non-deterministic output
680 useNewAST = true;
681 break;
682 case 'P': // print options
683 for ( int i = 0;; i += 1 ) {
684 if ( i == printoptsSize ) {
685 cout << "Unknown --print option " << optarg << endl;
686 goto Default;
687 } // if
688 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
689 printopts[i].flag = printopts[i].val;
690 break;
691 } // if
692 } // for
693 break;
694 case PreludeDir: // prelude directory for debug/nodebug, hidden
695 PreludeDirector = optarg;
696 break;
697 case 'S': // enable profiling information, argument comma separated list of names
698 Stats::parse_params( optarg );
699 break;
700 case 't': // building cfa stdlib
701 treep = true;
702 break;
703 case 'g': // wait for gdb
704 waiting_for_gdb = true;
705 break;
706 case 'w': // suppress all warnings, hidden
707 Wsuppress = true;
708 break;
709 case 'W': // coordinate gcc -W with CFA, hidden
710 if ( strcmp( optarg, "all" ) == 0 ) {
711 SemanticWarning_EnableAll();
712 } else if ( strcmp( optarg, "error" ) == 0 ) {
713 Werror = true;
714 } else {
715 char * warning = optarg;
716 Severity s;
717 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
718 warning += 3;
719 s = Severity::Suppress;
720 } else {
721 s = Severity::Warn;
722 } // if
723 SemanticWarning_Set( warning, s );
724 } // if
725 break;
726 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
727 break;
728 case '?': // unknown option
729 if ( optopt ) { // short option ?
730 cout << "Unknown option -" << (char)optopt << endl;
731 } else {
732 cout << "Unknown option " << argv[optind - 1] << endl;
733 } // if
734 goto Default;
735 case ':': // missing option
736 if ( optopt ) { // short option ?
737 cout << "Missing option for -" << (char)optopt << endl;
738 } else {
739 cout << "Missing option for " << argv[optind - 1] << endl;
740 } // if
741 goto Default;
742 Default:
743 default:
744 usage( argv ); // no return
745 } // switch
746 } // while
747
748 if ( Werror ) {
749 SemanticWarning_WarningAsError();
750 } // if
751 if ( Wsuppress ) {
752 SemanticWarning_SuppressAll();
753 } // if
754 // for ( const auto w : WarningFormats ) {
755 // cout << w.name << ' ' << (int)w.severity << endl;
756 // } // for
757} // parse_cmdline
758
759static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
760 extern int yyparse( void );
761 extern FILE * yyin;
762 extern int yylineno;
763
764 ::linkage = linkage; // set globals
765 yyin = input;
766 yylineno = 1;
767 int parseStatus = yyparse();
768
769 fclose( input );
770 if ( shouldExit || parseStatus != 0 ) {
771 exit( parseStatus );
772 } // if
773} // parse
774
775static bool notPrelude( Declaration * decl ) {
776 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
777} // notPrelude
778
779static void dump( list< Declaration * > & translationUnit, ostream & out ) {
780 list< Declaration * > decls;
781
782 if ( genproto ) {
783 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
784 } else {
785 decls = translationUnit;
786 } // if
787
788 // depending on commandline options, either generate code or dump the AST
789 if ( codegenp ) {
790 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
791 } else {
792 printAll( decls, out );
793 } // if
794 deleteAll( translationUnit );
795} // dump
796
797static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
798 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
799 dump( translationUnit, out );
800}
801
802// Local Variables: //
803// tab-width: 4 //
804// mode: c++ //
805// compile-command: "make install" //
806// End: //
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