source: src/main.cc@ 0a061c0

ADT ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 0a061c0 was 00da199, checked in by Henry Xue <y58xue@…>, 4 years ago

Add a switch to print AST after exdecl pass
  • Property mode set to 100644
File size: 27.6 KB
RevLine 
[b87a5ed]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//
[71f4e4f]7// main.cc --
[b87a5ed]8//
[3e96559]9// Author : Peter Buhr and Rob Schluntz
[b87a5ed]10// Created On : Fri May 15 23:12:02 2015
[0c730d9]11// Last Modified By : Henry Xue
[00da199]12// Last Modified On : Tue Jul 20 04:27:35 2021
13// Update Count : 658
[b87a5ed]14//
15
[bf2438c]16#include <cxxabi.h> // for __cxa_demangle
17#include <execinfo.h> // for backtrace, backtrace_symbols
18#include <getopt.h> // for no_argument, optind, geto...
[08fc48f]19#include <cassert> // for assertf
[bf2438c]20#include <cstdio> // for fopen, FILE, fclose, stdin
21#include <cstdlib> // for exit, free, abort, EXIT_F...
[bffcd66]22#include <csignal> // for signal, SIGABRT, SIGSEGV
[bf2438c]23#include <cstring> // for index
[be9288a]24#include <fstream> // for ofstream
[bf2438c]25#include <iostream> // for operator<<, basic_ostream
[62ce290]26#include <iomanip>
[bf2438c]27#include <iterator> // for back_inserter
28#include <list> // for list
[08fc48f]29#include <string> // for char_traits, operator<<
[e6955b1]30
[bffcd66]31using namespace std;
32
[9ea38de]33#include "AST/Convert.hpp"
[7f38b67a]34#include "CompilationState.h"
[bf2438c]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
[aff7e86]39#include "CodeGen/LinkOnce.h" // for translateLinkOnce
[bf2438c]40#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b6]41#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]42#include "CodeTools/TrackLoc.h" // for fillLocations
[f57faf6f]43#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
[bf2438c]44#include "Common/CompilerError.h" // for CompilerError
[7abee38]45#include "Common/Stats.h"
[cbbd5b48]46#include "Common/PassVisitor.h"
[bf2438c]47#include "Common/SemanticError.h" // for SemanticError
48#include "Common/UnimplementedError.h" // for UnimplementedError
49#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]50#include "Concurrency/Waitfor.h" // for generateWaitfor
[0c730d9]51#include "ControlStruct/ExceptDecl.h" // for translateExcept
[bf2438c]52#include "ControlStruct/ExceptTranslate.h" // for translateEHM
53#include "ControlStruct/Mutate.h" // for mutate
54#include "GenPoly/Box.h" // for box
55#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
56#include "GenPoly/Lvalue.h" // for convertLvalue
57#include "GenPoly/Specialize.h" // for convertSpecializations
58#include "InitTweak/FixInit.h" // for fix
59#include "InitTweak/GenInit.h" // for genInit
60#include "MakeLibCfa.h" // for makeLibCfa
61#include "Parser/ParseNode.h" // for DeclarationNode, buildList
62#include "Parser/TypedefTable.h" // for TypedefTable
63#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
64#include "ResolvExpr/Resolver.h" // for resolve
65#include "SymTab/Validate.h" // for validate
[bffcd66]66#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]67#include "SynTree/Declaration.h" // for Declaration
68#include "SynTree/Visitor.h" // for acceptAll
69#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]70#include "Virtual/ExpandCasts.h" // for expandCasts
[51b73452]71
[4615ac8]72
[3e96559]73static void NewPass( const char * const name ) {
74 Stats::Heap::newPass( name );
[1cb7fab2]75 using namespace Stats::Counters;
[b8665e3]76 {
[3e96559]77 static auto group = build<CounterGroup>( "Pass Visitor" );
78 auto pass = build<CounterGroup>( name, group );
[b8665e3]79 pass_visitor_stats.depth = 0;
[3e96559]80 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
81 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]82 }
83 {
[3e96559]84 static auto group = build<CounterGroup>( "Syntax Node" );
85 auto pass = build<CounterGroup>( name, group );
86 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]87 }
[675716e]88}
89
[3e96559]90#define PASS( name, pass ) \
[ecaeac6e]91 if ( errorp ) { cerr << name << endl; } \
[675716e]92 NewPass(name); \
[4f97937]93 Stats::Time::StartBlock(name); \
94 pass; \
95 Stats::Time::StopBlock();
[0da3e2c]96
[8b7ee09]97LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]98TypedefTable typedefTable;
[cbaee0d]99DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]100
[ef22ad6]101static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]102
[bffcd66]103static string PreludeDirector = "";
[4dcaed2]104
[77d601f]105static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]106static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]107static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]108static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]109
[0afffee]110static void backtrace( int start ) { // skip first N stack frames
[74330e7]111 enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]112 void * array[Frames];
[74330e7]113 size_t size = ::backtrace( array, Frames );
[0afffee]114 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
115
116 *index( messages[0], '(' ) = '\0'; // find executable name
117 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]118
[b542bfb]119 // skip last 2 stack frames after main
[74330e7]120 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]121 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]122
123 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]124 if ( *p == '(' ) {
[46f6134]125 mangled_name = p;
[0afffee]126 } else if ( *p == '+' ) {
[e6955b1]127 offset_begin = p;
[0afffee]128 } else if ( *p == ')' ) {
[e6955b1]129 offset_end = p;
130 break;
131 } // if
132 } // for
133
134 // if line contains symbol, attempt to demangle
[b542bfb]135 int frameNo = i - start;
[e6955b1]136 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]137 *mangled_name++ = '\0'; // delimit strings
[e6955b1]138 *offset_begin++ = '\0';
139 *offset_end++ = '\0';
140
[0afffee]141 int status;
[e6955b1]142 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]143 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]144 if ( status == 0 ) { // demangling successful ?
[b542bfb]145 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]146 << real_name << "+" << offset_begin << offset_end << endl;
147 } else { // otherwise, output mangled name
[b542bfb]148 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]149 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]150 } // if
[0afffee]151
[e6955b1]152 free( real_name );
153 } else { // otherwise, print the whole line
[b542bfb]154 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]155 } // if
156 } // for
[b542bfb]157
[e6955b1]158 free( messages );
[b542bfb]159} // backtrace
160
[bffcd66]161#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
162
[1f68d5d]163static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]164 act.sa_flags = flags;
165
166 if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]167 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]168 _exit( EXIT_FAILURE );
169 } // if
[1f68d5d]170}
171
172static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
173 struct sigaction act;
174 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
175 _Signal(act, sig, flags);
176} // Signal
177
178static void Signal( int sig, void (* handler)(int), int flags ) {
179 struct sigaction act;
180 act.sa_handler = handler;
181 _Signal(act, sig, flags);
[bffcd66]182} // Signal
183
184static void sigSegvBusHandler( SIGPARMS ) {
185 if ( sfp->si_addr == nullptr ) {
186 cerr << "Null pointer (nullptr) dereference." << endl;
187 } else {
188 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
189 << "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;
190 } // if
[b542bfb]191 backtrace( 2 ); // skip first 2 stack frames
[3e96559]192 abort(); // cause core dump for debugging
[e6955b1]193} // sigSegvBusHandler
[0da3e2c]194
[74330e7]195static void sigFpeHandler( SIGPARMS ) {
196 const char * msg;
197
198 switch ( sfp->si_code ) {
199 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
200 case FPE_FLTOVF: msg = "overflow"; break;
201 case FPE_FLTUND: msg = "underflow"; break;
202 case FPE_FLTRES: msg = "inexact result"; break;
203 case FPE_FLTINV: msg = "invalid operation"; break;
204 default: msg = "unknown";
205 } // choose
206 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
207 << "Possible cause is constant-expression evaluation invalid." << endl;
208 backtrace( 2 ); // skip first 2 stack frames
209 abort(); // cause core dump for debugging
210} // sigFpeHandler
211
[bffcd66]212static void sigAbortHandler( SIGPARMS ) {
[b542bfb]213 backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]214 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]215 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]216} // sigAbortHandler
217
[cbaee0d]218int main( int argc, char * argv[] ) {
[3b8e52c]219 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]220 ostream * output = & cout;
[e6955b1]221 list< Declaration * > translationUnit;
222
[bffcd66]223 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
224 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]225 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]226 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]227
[bffcd66]228 // cout << "main" << endl;
[44bca7f]229 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]230 // cout << '\t' << argv[i] << endl;
[44bca7f]231 // } // for
232
[e0bd0f9]233 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]234 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]235
[ef22ad6]236 if ( waiting_for_gdb ) {
[bffcd66]237 cerr << "Waiting for gdb" << endl;
238 cerr << "run :" << endl;
239 cerr << " gdb attach " << getpid() << endl;
[dee1f89]240 raise(SIGSTOP);
[ef22ad6]241 } // if
[dee1f89]242
[b87a5ed]243 try {
[81419b5]244 // choose to read the program from a file or stdin
[3b8e52c]245 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]246 input = fopen( argv[ optind ], "r" );
[e0bd0f9]247 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]248 optind += 1;
[3b8e52c]249 } else { // no input file name
[b87a5ed]250 input = stdin;
251 } // if
252
[79eaeb7]253 Stats::Time::StartGlobal();
[3c0d4cd]254 NewPass("Parse");
255 Stats::Time::StartBlock("Parse");
[675716e]256
[159c62e]257 // read in the builtins, extras, and the prelude
[de62360d]258 if ( ! nopreludep ) { // include gcc builtins
[faf8857]259 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]260
[37fe352]261 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]262
[807ce84]263 // Read to gcc builtins, if not generating the cfa library
[37fe352]264 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]265 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
266 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]267
[159c62e]268 // read the extra prelude in, if not generating the cfa library
[37fe352]269 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]270 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]271 parse( extras, LinkageSpec::BuiltinC );
[159c62e]272
[81419b5]273 if ( ! libcfap ) {
[faf8857]274 // read the prelude in, if not generating the cfa library
[e523b07]275 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
276 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]277 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]278
279 // Read to cfa builtins, if not generating the cfa library
[37fe352]280 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]281 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]282 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]283 } // if
284 } // if
[81419b5]285
[926af74]286 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]287
[b87a5ed]288 if ( parsep ) {
[e6955b1]289 parseTree->printList( cout );
[0da3e2c]290 delete parseTree;
[3e96559]291 return EXIT_SUCCESS;
[b87a5ed]292 } // if
293
[0da3e2c]294 buildList( parseTree, translationUnit );
295 delete parseTree;
[cbaee0d]296 parseTree = nullptr;
[b87a5ed]297
298 if ( astp ) {
[1ab4ce2]299 dump( translationUnit );
[3e96559]300 return EXIT_SUCCESS;
[b87a5ed]301 } // if
302
[036dd5f]303 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
304 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
305 // works okay for now.
306 CodeTools::fillLocations( translationUnit );
[3c0d4cd]307 Stats::Time::StopBlock();
[036dd5f]308
[0c730d9]309 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]310 if ( exdeclp ) {
311 dump( translationUnit );
312 return EXIT_SUCCESS;
313 } // if
[0c730d9]314
[839ccbb]315 // add the assignment statement after the initialization of a type parameter
[675716e]316 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]317 if ( symtabp ) {
[46f6134]318 deleteAll( translationUnit );
[3e96559]319 return EXIT_SUCCESS;
[b87a5ed]320 } // if
321
[81419b5]322 if ( expraltp ) {
[bff09c8]323 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]324 acceptAll( translationUnit, printer );
[3e96559]325 return EXIT_SUCCESS;
[b87a5ed]326 } // if
327
328 if ( validp ) {
[1ab4ce2]329 dump( translationUnit );
[3e96559]330 return EXIT_SUCCESS;
[b87a5ed]331 } // if
332
[046a890]333 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[675716e]334 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
335 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
336 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
337 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]338 if ( libcfap ) {
339 // generate the bodies of cfa library functions
340 LibCfa::makeLibCfa( translationUnit );
[b87a5ed]341 } // if
342
[fa2de95]343 if ( declstatsp ) {
344 CodeTools::printDeclStats( translationUnit );
345 deleteAll( translationUnit );
[3e96559]346 return EXIT_SUCCESS;
347 } // if
[fa2de95]348
[de62360d]349 if ( bresolvep ) {
[1ab4ce2]350 dump( translationUnit );
[3e96559]351 return EXIT_SUCCESS;
[de62360d]352 } // if
353
[76b378d]354 CodeTools::fillLocations( translationUnit );
355
[3b3491b6]356 if ( resolvprotop ) {
357 CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]358 return EXIT_SUCCESS;
359 } // if
[3b3491b6]360
[4a8f150]361 if( useNewAST ) {
[3746f777]362 if (Stats::Counters::enabled) {
363 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
364 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
365 }
[9ea38de]366 auto transUnit = convert( move( translationUnit ) );
367 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]368 if ( exprp ) {
[e499381]369 dump( move( transUnit ) );
[490fb92e]370 return EXIT_SUCCESS;
371 } // if
372
[f57faf6f]373 forceFillCodeLocations( transUnit );
[4a8f150]374
[490fb92e]375 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[9ea38de]376 translationUnit = convert( move( transUnit ) );
[a77257be]377 } else {
378 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]379 if ( exprp ) {
380 dump( translationUnit );
381 return EXIT_SUCCESS;
382 }
[4615ac8]383
[490fb92e]384 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
385 }
[81419b5]386
[71f4e4f]387 // fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]388 if ( ctorinitp ) {
389 dump ( translationUnit );
[3e96559]390 return EXIT_SUCCESS;
[926af74]391 } // if
[71f4e4f]392
[675716e]393 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
[626dbc10]394
[046a890]395 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]396
[675716e]397 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]398
[675716e]399 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]400
[675716e]401 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]402
403 if ( tuplep ) {
404 dump( translationUnit );
[3e96559]405 return EXIT_SUCCESS;
406 } // if
[141b786]407
[675716e]408 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]409
[675716e]410 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]411 if ( genericsp ) {
412 dump( translationUnit );
[3e96559]413 return EXIT_SUCCESS;
414 } // if
[b4f8808]415
[675716e]416 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]417
[fea7ca7]418 if ( bboxp ) {
419 dump( translationUnit );
[3e96559]420 return EXIT_SUCCESS;
[926af74]421 } // if
[675716e]422 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]423
[aff7e86]424 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
425
426 // Code has been lowered to C, now we can start generation.
427
[8905f56]428 if ( bcodegenp ) {
429 dump( translationUnit );
[3e96559]430 return EXIT_SUCCESS;
431 } // if
[8905f56]432
[13de47bc]433 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
434 output = new ofstream( argv[ optind ] );
435 } // if
[0270824]436
[7b15d7a]437 CodeTools::fillLocations( translationUnit );
[62ce290]438 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]439
[37fe352]440 CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]441 if ( output != &cout ) {
[b87a5ed]442 delete output;
443 } // if
[77d601f]444 } catch ( SemanticErrorException & e ) {
[b87a5ed]445 if ( errorp ) {
[e6955b1]446 cerr << "---AST at error:---" << endl;
447 dump( translationUnit, cerr );
448 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]449 } // if
[d55d7a6]450 e.print();
[e6955b1]451 if ( output != &cout ) {
[b87a5ed]452 delete output;
453 } // if
[3e96559]454 return EXIT_FAILURE;
[77d601f]455 } catch ( UnimplementedError & e ) {
[e6955b1]456 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
457 if ( output != &cout ) {
[b87a5ed]458 delete output;
459 } // if
[3e96559]460 return EXIT_FAILURE;
[77d601f]461 } catch ( CompilerError & e ) {
[e6955b1]462 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]463 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]464 if ( output != &cout ) {
[b87a5ed]465 delete output;
466 } // if
[3e96559]467 return EXIT_FAILURE;
[77d601f]468 } catch ( std::bad_alloc & ) {
469 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
470 backtrace( 1 );
471 abort();
[3e96559]472 } catch ( ... ) {
[bffcd66]473 exception_ptr eptr = current_exception();
[4990812]474 try {
475 if (eptr) {
[bffcd66]476 rethrow_exception(eptr);
[3e96559]477 } else {
[77d601f]478 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
[3e96559]479 } // if
[77d601f]480 } catch( const exception & e ) {
481 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
[3e96559]482 } // try
483 return EXIT_FAILURE;
484 } // try
[b87a5ed]485
[39786813]486 deleteAll( translationUnit );
[1cb7fab2]487 Stats::print();
[3e96559]488 return EXIT_SUCCESS;
[d9a0e76]489} // main
[51b73452]490
[0da3e2c]491
[3e9de01]492static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]493
[62ce290]494enum { PreludeDir = 128 };
[3e96559]495static struct option long_opts[] = {
[1a69a90]496 { "colors", required_argument, nullptr, 'c' },
497 { "gdb", no_argument, nullptr, 'g' },
[3e96559]498 { "help", no_argument, nullptr, 'h' },
499 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]500 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]501 { "no-main", no_argument, 0, 'm' },
[62ce290]502 { "no-linemarks", no_argument, nullptr, 'N' },
503 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]504 { "prototypes", no_argument, nullptr, 'p' },
[7215000]505 { "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]506 { "old-ast", no_argument, nullptr, 'O'},
507 { "new-ast", no_argument, nullptr, 'A'},
[62ce290]508 { "print", required_argument, nullptr, 'P' },
509 { "prelude-dir", required_argument, nullptr, PreludeDir },
510 { "statistics", required_argument, nullptr, 'S' },
[3e96559]511 { "tree", no_argument, nullptr, 't' },
512 { "", no_argument, nullptr, 0 }, // -w
513 { "", no_argument, nullptr, 0 }, // -W
514 { "", no_argument, nullptr, 0 }, // -D
515 { nullptr, 0, nullptr, 0 }
516}; // long_opts
517
518static const char * description[] = {
[aa88cb9a]519 "diagnostic color: never, always, auto", // -c
[3e9de01]520 "wait for gdb to attach", // -g
[aa88cb9a]521 "print translator help message", // -h
[3e9de01]522 "generate libcfa.c", // -l
523 "generate line marks", // -L
524 "do not replace main", // -m
525 "do not generate line marks", // -N
526 "do not read prelude", // -n
[aa88cb9a]527 "do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]528 "only print deterministic output", // -d
529 "Use the old-ast", // -O
530 "Use the new-ast", // -A
531 "print", // -P
[62ce290]532 "<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]533 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]534 "building cfa standard lib", // -t
535 "", // -w
536 "", // -W
537 "", // -D
[3e96559]538}; // description
539
[0c0f548]540static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]541
542static struct Printopts {
543 const char * name;
544 int & flag;
545 int val;
546 const char * descript;
547} printopts[] = {
[0e464f6]548 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
549 { "asterr", errorp, true, "print AST on error" },
[62ce290]550 { "declstats", declstatsp, true, "code property statistics" },
551 { "parse", yydebug, true, "yacc (parsing) debug information" },
552 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
553 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]554 { "rsteps", resolvep, true, "print resolver steps" },
555 { "tree", parsep, true, "print parse tree" },
556 // code dumps
557 { "ast", astp, true, "print AST after parsing" },
[00da199]558 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]559 { "symevt", symtabp, true, "print AST after symbol table events" },
560 { "altexpr", expraltp, true, "print alternatives for expressions" },
561 { "astdecl", validp, true, "print AST after declaration validation pass" },
562 { "resolver", bresolvep, true, "print AST before resolver step" },
563 { "astexpr", exprp, true, "print AST after expression analysis" },
564 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
565 { "tuple", tuplep, true, "print AST after tuple expansion" },
566 { "astgen", genericsp, true, "print AST after instantiate generics" },
567 { "box", bboxp, true, "print AST before box step" },
568 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]569};
570enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
571
[77d601f]572static void usage( char * argv[] ) {
[e0bd0f9]573 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]574 int i = 0, j = 1; // j skips starting colon
575 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
576 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]577 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
578 cout << " -" << optstring[j] << ",";
579 } else { // no flag
580 j -= 1; // compensate
581 cout << " ";
582 } // if
583 cout << " --" << left << setw(12) << long_opts[i].name << " ";
584 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
585 cout << "one of: " << endl;
586 for ( int i = 0; i < printoptsSize; i += 1 ) {
587 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
588 } // for
589 } else {
590 cout << description[i] << endl;
591 } // if
[3e96559]592 } // if
[62ce290]593 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]594 } // for
595 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
596 exit( EXIT_FAILURE );
597} // usage
598
[e0bd0f9]599static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]600 opterr = 0; // (global) prevent getopt from printing error messages
601
[c5e5109]602 bool Wsuppress = false, Werror = false;
[0da3e2c]603 int c;
[3e96559]604 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]605 switch ( c ) {
[1a69a90]606 case 'c': // diagnostic colors
607 if ( strcmp( optarg, "always" ) == 0 ) {
608 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
609 } else if ( strcmp( optarg, "never" ) == 0 ) {
610 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
611 } else if ( strcmp( optarg, "auto" ) == 0 ) {
612 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
613 } // if
614 break;
[3e96559]615 case 'h': // help message
616 usage( argv ); // no return
[53d3ab4b]617 break;
[3e96559]618 case 'l': // generate libcfa.c
[0da3e2c]619 libcfap = true;
620 break;
[62ce290]621 case 'L': // generate line marks
[6de43b6]622 linemarks = true;
[c850687]623 break;
[3e96559]624 case 'm': // do not replace main
625 nomainp = true;
[0da3e2c]626 break;
[62ce290]627 case 'N': // do not generate line marks
[6de43b6]628 linemarks = false;
[c59bde6]629 break;
[62ce290]630 case 'n': // do not read prelude
[3e96559]631 nopreludep = true;
[0da3e2c]632 break;
[62ce290]633 case 'p': // generate prototypes for prelude functions
634 genproto = true;
[0da3e2c]635 break;
[7215000]636 case 'd': // don't print non-deterministic output
[a77257be]637 deterministic_output = true;
638 break;
639 case 'O': // don't print non-deterministic output
640 useNewAST = false;
641 break;
642 case 'A': // don't print non-deterministic output
643 useNewAST = true;
[7215000]644 break;
[62ce290]645 case 'P': // print options
646 for ( int i = 0;; i += 1 ) {
647 if ( i == printoptsSize ) {
648 cout << "Unknown --print option " << optarg << endl;
649 goto Default;
650 } // if
651 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
652 printopts[i].flag = printopts[i].val;
653 break;
654 } // if
655 } // for
[0da3e2c]656 break;
[62ce290]657 case PreludeDir: // prelude directory for debug/nodebug, hidden
658 PreludeDirector = optarg;
[3b3491b6]659 break;
[3e96559]660 case 'S': // enable profiling information, argument comma separated list of names
661 Stats::parse_params( optarg );
[ebcc940]662 break;
[dee1f89]663 case 't': // building cfa stdlib
[0da3e2c]664 treep = true;
665 break;
[dee1f89]666 case 'g': // wait for gdb
667 waiting_for_gdb = true;
668 break;
[3e96559]669 case 'w': // suppress all warnings, hidden
[c5e5109]670 Wsuppress = true;
[44bca7f]671 break;
[3e96559]672 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]673 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]674 SemanticWarning_EnableAll();
[44bca7f]675 } else if ( strcmp( optarg, "error" ) == 0 ) {
676 Werror = true;
677 } else {
678 char * warning = optarg;
679 Severity s;
680 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
681 warning += 3;
682 s = Severity::Suppress;
683 } else {
684 s = Severity::Warn;
685 } // if
[68e9ace]686 SemanticWarning_Set( warning, s );
[44bca7f]687 } // if
688 break;
[3e96559]689 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]690 break;
[3e96559]691 case '?': // unknown option
692 if ( optopt ) { // short option ?
693 cout << "Unknown option -" << (char)optopt << endl;
694 } else {
695 cout << "Unknown option " << argv[optind - 1] << endl;
696 } // if
697 goto Default;
698 case ':': // missing option
[ae47a23]699 if ( optopt ) { // short option ?
[3e96559]700 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]701 } else {
[3e96559]702 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]703 } // if
[3e96559]704 goto Default;
705 Default:
706 default:
707 usage( argv ); // no return
[0da3e2c]708 } // switch
709 } // while
[44bca7f]710
711 if ( Werror ) {
[68e9ace]712 SemanticWarning_WarningAsError();
[44bca7f]713 } // if
[c5e5109]714 if ( Wsuppress ) {
715 SemanticWarning_SuppressAll();
716 } // if
[44bca7f]717 // for ( const auto w : WarningFormats ) {
718 // cout << w.name << ' ' << (int)w.severity << endl;
719 // } // for
[0da3e2c]720} // parse_cmdline
721
[8b7ee09]722static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]723 extern int yyparse( void );
[cbaee0d]724 extern FILE * yyin;
[0da3e2c]725 extern int yylineno;
726
[8b7ee09]727 ::linkage = linkage; // set globals
[0da3e2c]728 yyin = input;
729 yylineno = 1;
730 int parseStatus = yyparse();
[81419b5]731
732 fclose( input );
[0da3e2c]733 if ( shouldExit || parseStatus != 0 ) {
734 exit( parseStatus );
[81419b5]735 } // if
[0da3e2c]736} // parse
[81419b5]737
[1ab4ce2]738static bool notPrelude( Declaration * decl ) {
739 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]740} // notPrelude
[1ab4ce2]741
[e6955b1]742static void dump( list< Declaration * > & translationUnit, ostream & out ) {
743 list< Declaration * > decls;
[926af74]744
[62ce290]745 if ( genproto ) {
[e6955b1]746 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]747 } else {
748 decls = translationUnit;
[926af74]749 } // if
[1ab4ce2]750
[e39241b]751 // depending on commandline options, either generate code or dump the AST
752 if ( codegenp ) {
[62ce290]753 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]754 } else {
755 printAll( decls, out );
[3e96559]756 } // if
[7f5566b]757 deleteAll( translationUnit );
[0da3e2c]758} // dump
[1ab4ce2]759
[e499381]760static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
761 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
762 dump( translationUnit, out );
763}
764
[51b73452]765// Local Variables: //
[b87a5ed]766// tab-width: 4 //
767// mode: c++ //
768// compile-command: "make install" //
[51b73452]769// End: //
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