source: src/main.cc@ 152c2b2

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 152c2b2 was 49d3128, checked in by Thierry Delisle <tdelisle@…>, 6 years ago

cfa command now properly supports -fdiagnostics-color and -fno-diagnostics-color
  • Property mode set to 100644
File size: 23.8 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
[c59bde6]11// Last Modified By : Peter A. Buhr
[ef22ad6]12// Last Modified On : Fri Aug 23 06:50:08 2019
13// Update Count : 607
[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...
[dee1f89]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
[7f38b67a]31#include "CompilationState.h"
[bf2438c]32#include "../config.h" // for CFA_LIBDIR
33#include "CodeGen/FixMain.h" // for FixMain
34#include "CodeGen/FixNames.h" // for fixNames
35#include "CodeGen/Generate.h" // for generate
36#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b6]37#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]38#include "CodeTools/TrackLoc.h" // for fillLocations
39#include "Common/CompilerError.h" // for CompilerError
[7abee38]40#include "Common/Stats.h"
[cbbd5b48]41#include "Common/PassVisitor.h"
[bf2438c]42#include "Common/SemanticError.h" // for SemanticError
43#include "Common/UnimplementedError.h" // for UnimplementedError
44#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]45#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]46#include "ControlStruct/ExceptTranslate.h" // for translateEHM
47#include "ControlStruct/Mutate.h" // for mutate
48#include "GenPoly/Box.h" // for box
49#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
50#include "GenPoly/Lvalue.h" // for convertLvalue
51#include "GenPoly/Specialize.h" // for convertSpecializations
52#include "InitTweak/FixInit.h" // for fix
53#include "InitTweak/GenInit.h" // for genInit
54#include "MakeLibCfa.h" // for makeLibCfa
55#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
56#include "Parser/ParseNode.h" // for DeclarationNode, buildList
57#include "Parser/TypedefTable.h" // for TypedefTable
58#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
59#include "ResolvExpr/Resolver.h" // for resolve
60#include "SymTab/Validate.h" // for validate
61#include "SynTree/Declaration.h" // for Declaration
62#include "SynTree/Visitor.h" // for acceptAll
63#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]64#include "Virtual/ExpandCasts.h" // for expandCasts
[51b73452]65
[4615ac8]66
[51b73452]67using namespace std;
68
[3e96559]69static void NewPass( const char * const name ) {
70 Stats::Heap::newPass( name );
[1cb7fab2]71 using namespace Stats::Counters;
[b8665e3]72 {
[3e96559]73 static auto group = build<CounterGroup>( "Pass Visitor" );
74 auto pass = build<CounterGroup>( name, group );
[b8665e3]75 pass_visitor_stats.depth = 0;
[3e96559]76 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
77 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]78 }
79 {
[3e96559]80 static auto group = build<CounterGroup>( "Syntax Node" );
81 auto pass = build<CounterGroup>( name, group );
82 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]83 }
[675716e]84}
85
[3e96559]86#define PASS( name, pass ) \
[ecaeac6e]87 if ( errorp ) { cerr << name << endl; } \
[675716e]88 NewPass(name); \
[4f97937]89 Stats::Time::StartBlock(name); \
90 pass; \
91 Stats::Time::StopBlock();
[0da3e2c]92
[8b7ee09]93LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]94TypedefTable typedefTable;
[cbaee0d]95DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]96
[ef22ad6]97static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]98
[3e96559]99static std::string PreludeDirector = "";
[4dcaed2]100
[e0bd0f9]101static void parse_cmdline( int argc, char *argv[] );
[8b7ee09]102static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]103static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
104
[0afffee]105static void backtrace( int start ) { // skip first N stack frames
[e6955b1]106 enum { Frames = 50 };
107 void * array[Frames];
[0afffee]108 int size = ::backtrace( array, Frames );
109 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
110
111 *index( messages[0], '(' ) = '\0'; // find executable name
112 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]113
[b542bfb]114 // skip last 2 stack frames after main
115 for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]116 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
117 for ( char *p = messages[i]; *p; ++p ) { // find parantheses and +offset
[0afffee]118 if ( *p == '(' ) {
[46f6134]119 mangled_name = p;
[0afffee]120 } else if ( *p == '+' ) {
[e6955b1]121 offset_begin = p;
[0afffee]122 } else if ( *p == ')' ) {
[e6955b1]123 offset_end = p;
124 break;
125 } // if
126 } // for
127
128 // if line contains symbol, attempt to demangle
[b542bfb]129 int frameNo = i - start;
[e6955b1]130 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]131 *mangled_name++ = '\0'; // delimit strings
[e6955b1]132 *offset_begin++ = '\0';
133 *offset_end++ = '\0';
134
[0afffee]135 int status;
[e6955b1]136 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]137 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]138 if ( status == 0 ) { // demangling successful ?
[b542bfb]139 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]140 << real_name << "+" << offset_begin << offset_end << endl;
141 } else { // otherwise, output mangled name
[b542bfb]142 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]143 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]144 } // if
[0afffee]145
[e6955b1]146 free( real_name );
147 } else { // otherwise, print the whole line
[b542bfb]148 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]149 } // if
150 } // for
[b542bfb]151
[e6955b1]152 free( messages );
[b542bfb]153} // backtrace
154
[3e96559]155static void sigSegvBusHandler( int sig_num ) {
[b542bfb]156 cerr << "*CFA runtime error* program cfa-cpp terminated with "
157 << (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]158 << "." << endl;
[b542bfb]159 backtrace( 2 ); // skip first 2 stack frames
[af84a35]160 //_exit( EXIT_FAILURE );
[3e96559]161 abort(); // cause core dump for debugging
[e6955b1]162} // sigSegvBusHandler
[0da3e2c]163
[3e96559]164static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
[b542bfb]165 backtrace( 6 ); // skip first 6 stack frames
166 signal( SIGABRT, SIG_DFL); // reset default signal handler
[9be45a2]167 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]168} // sigAbortHandler
169
[cbaee0d]170int main( int argc, char * argv[] ) {
[3b8e52c]171 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]172 ostream * output = & cout;
[e6955b1]173 list< Declaration * > translationUnit;
174
175 signal( SIGSEGV, sigSegvBusHandler );
176 signal( SIGBUS, sigSegvBusHandler );
[b542bfb]177 signal( SIGABRT, sigAbortHandler );
[b87a5ed]178
[44bca7f]179 // std::cout << "main" << std::endl;
180 // for ( int i = 0; i < argc; i += 1 ) {
181 // std::cout << '\t' << argv[i] << std::endl;
182 // } // for
183
[e0bd0f9]184 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]185 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]186
[ef22ad6]187 if ( waiting_for_gdb ) {
[dee1f89]188 std::cerr << "Waiting for gdb" << std::endl;
189 std::cerr << "run :" << std::endl;
190 std::cerr << " gdb attach " << getpid() << std::endl;
191 raise(SIGSTOP);
[ef22ad6]192 } // if
[dee1f89]193
[b87a5ed]194 try {
[81419b5]195 // choose to read the program from a file or stdin
[3b8e52c]196 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]197 input = fopen( argv[ optind ], "r" );
[e0bd0f9]198 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]199 optind += 1;
[3b8e52c]200 } else { // no input file name
[b87a5ed]201 input = stdin;
202 } // if
203
[79eaeb7]204 Stats::Time::StartGlobal();
[3c0d4cd]205 NewPass("Parse");
206 Stats::Time::StartBlock("Parse");
[675716e]207
[159c62e]208 // read in the builtins, extras, and the prelude
[de62360d]209 if ( ! nopreludep ) { // include gcc builtins
[faf8857]210 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]211
[37fe352]212 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]213
[807ce84]214 // Read to gcc builtins, if not generating the cfa library
[37fe352]215 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]216 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
217 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]218
[159c62e]219 // read the extra prelude in, if not generating the cfa library
[37fe352]220 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]221 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]222 parse( extras, LinkageSpec::BuiltinC );
[159c62e]223
[81419b5]224 if ( ! libcfap ) {
[faf8857]225 // read the prelude in, if not generating the cfa library
[e523b07]226 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
227 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]228 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]229
230 // Read to cfa builtins, if not generating the cfa library
[37fe352]231 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]232 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]233 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]234 } // if
235 } // if
[81419b5]236
[926af74]237 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]238
[b87a5ed]239 if ( parsep ) {
[e6955b1]240 parseTree->printList( cout );
[0da3e2c]241 delete parseTree;
[3e96559]242 return EXIT_SUCCESS;
[b87a5ed]243 } // if
244
[0da3e2c]245 buildList( parseTree, translationUnit );
246 delete parseTree;
[cbaee0d]247 parseTree = nullptr;
[b87a5ed]248
249 if ( astp ) {
[1ab4ce2]250 dump( translationUnit );
[3e96559]251 return EXIT_SUCCESS;
[b87a5ed]252 } // if
253
[036dd5f]254 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
255 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
256 // works okay for now.
257 CodeTools::fillLocations( translationUnit );
[3c0d4cd]258 Stats::Time::StopBlock();
[036dd5f]259
[839ccbb]260 // add the assignment statement after the initialization of a type parameter
[675716e]261 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]262 if ( symtabp ) {
[46f6134]263 deleteAll( translationUnit );
[3e96559]264 return EXIT_SUCCESS;
[b87a5ed]265 } // if
266
[81419b5]267 if ( expraltp ) {
[bff09c8]268 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]269 acceptAll( translationUnit, printer );
[3e96559]270 return EXIT_SUCCESS;
[b87a5ed]271 } // if
272
273 if ( validp ) {
[1ab4ce2]274 dump( translationUnit );
[3e96559]275 return EXIT_SUCCESS;
[b87a5ed]276 } // if
277
[675716e]278 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
279 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
280 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
281 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]282 if ( libcfap ) {
283 // generate the bodies of cfa library functions
284 LibCfa::makeLibCfa( translationUnit );
[b87a5ed]285 } // if
286
[fa2de95]287 if ( declstatsp ) {
288 CodeTools::printDeclStats( translationUnit );
289 deleteAll( translationUnit );
[3e96559]290 return EXIT_SUCCESS;
291 } // if
[fa2de95]292
[de62360d]293 if ( bresolvep ) {
[1ab4ce2]294 dump( translationUnit );
[3e96559]295 return EXIT_SUCCESS;
[de62360d]296 } // if
297
[76b378d]298 CodeTools::fillLocations( translationUnit );
299
[3b3491b6]300 if ( resolvprotop ) {
301 CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]302 return EXIT_SUCCESS;
303 } // if
[3b3491b6]304
[675716e]305 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[81419b5]306 if ( exprp ) {
[1ab4ce2]307 dump( translationUnit );
[3e96559]308 return EXIT_SUCCESS;
[926af74]309 } // if
[81419b5]310
[71f4e4f]311 // fix ObjectDecl - replaces ConstructorInit nodes
[675716e]312 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[ca1c11f]313 if ( ctorinitp ) {
314 dump ( translationUnit );
[3e96559]315 return EXIT_SUCCESS;
[926af74]316 } // if
[71f4e4f]317
[675716e]318 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]319
[675716e]320 PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
[6edd210]321
[675716e]322 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]323
[675716e]324 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]325
[675716e]326 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]327
328 if ( tuplep ) {
329 dump( translationUnit );
[3e96559]330 return EXIT_SUCCESS;
331 } // if
[141b786]332
[675716e]333 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]334
[675716e]335 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]336 if ( genericsp ) {
337 dump( translationUnit );
[3e96559]338 return EXIT_SUCCESS;
339 } // if
[b4f8808]340
[675716e]341 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]342
[fea7ca7]343 if ( bboxp ) {
344 dump( translationUnit );
[3e96559]345 return EXIT_SUCCESS;
[926af74]346 } // if
[675716e]347 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]348
[8905f56]349 if ( bcodegenp ) {
350 dump( translationUnit );
[3e96559]351 return EXIT_SUCCESS;
352 } // if
[8905f56]353
[13de47bc]354 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
355 output = new ofstream( argv[ optind ] );
356 } // if
[0270824]357
[7b15d7a]358 CodeTools::fillLocations( translationUnit );
[62ce290]359 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]360
[37fe352]361 CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]362 if ( output != &cout ) {
[b87a5ed]363 delete output;
364 } // if
[a16764a6]365 } catch ( SemanticErrorException &e ) {
[b87a5ed]366 if ( errorp ) {
[e6955b1]367 cerr << "---AST at error:---" << endl;
368 dump( translationUnit, cerr );
369 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]370 } // if
[d55d7a6]371 e.print();
[e6955b1]372 if ( output != &cout ) {
[b87a5ed]373 delete output;
374 } // if
[3e96559]375 return EXIT_FAILURE;
[b87a5ed]376 } catch ( UnimplementedError &e ) {
[e6955b1]377 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
378 if ( output != &cout ) {
[b87a5ed]379 delete output;
380 } // if
[3e96559]381 return EXIT_FAILURE;
[b87a5ed]382 } catch ( CompilerError &e ) {
[e6955b1]383 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]384 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]385 if ( output != &cout ) {
[b87a5ed]386 delete output;
387 } // if
[3e96559]388 return EXIT_FAILURE;
389 } catch ( ... ) {
[4990812]390 std::exception_ptr eptr = std::current_exception();
391 try {
392 if (eptr) {
393 std::rethrow_exception(eptr);
[3e96559]394 } else {
395 std::cerr << "Exception Uncaught and Unknown" << std::endl;
396 } // if
[4990812]397 } catch(const std::exception& e) {
[0689cd9]398 std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
[3e96559]399 } // try
400 return EXIT_FAILURE;
401 } // try
[b87a5ed]402
[39786813]403 deleteAll( translationUnit );
[1cb7fab2]404 Stats::print();
[3e96559]405 return EXIT_SUCCESS;
[d9a0e76]406} // main
[51b73452]407
[0da3e2c]408
[1a69a90]409static const char optstring[] = ":c:ghlLmNnpP:S:twW:D:";
[3e96559]410
[62ce290]411enum { PreludeDir = 128 };
[3e96559]412static struct option long_opts[] = {
[1a69a90]413 { "colors", required_argument, nullptr, 'c' },
414 { "gdb", no_argument, nullptr, 'g' },
[3e96559]415 { "help", no_argument, nullptr, 'h' },
416 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]417 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]418 { "no-main", no_argument, 0, 'm' },
[62ce290]419 { "no-linemarks", no_argument, nullptr, 'N' },
420 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]421 { "prototypes", no_argument, nullptr, 'p' },
[62ce290]422 { "print", required_argument, nullptr, 'P' },
423 { "prelude-dir", required_argument, nullptr, PreludeDir },
424 { "statistics", required_argument, nullptr, 'S' },
[3e96559]425 { "tree", no_argument, nullptr, 't' },
426 { "", no_argument, nullptr, 0 }, // -w
427 { "", no_argument, nullptr, 0 }, // -W
428 { "", no_argument, nullptr, 0 }, // -D
429 { nullptr, 0, nullptr, 0 }
430}; // long_opts
431
432static const char * description[] = {
[49d3128]433 "diagnostic color: never, always, or auto.", // -c
434 "wait for gdb to attach", // -g
435 "print help message", // -h
436 "generate libcfa.c", // -l
437 "generate line marks", // -L
438 "do not replace main", // -m
439 "do not generate line marks", // -N
440 "do not read prelude", // -n
[62ce290]441 "generate prototypes for prelude functions", // -p
[49d3128]442 "print", // -P
[62ce290]443 "<directory> prelude directory for debug/nodebug", // no flag
444 "<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[49d3128]445 "building cfa standard lib", // -t
446 "", // -w
447 "", // -W
448 "", // -D
[3e96559]449}; // description
450
[0c0f548]451static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]452
453static struct Printopts {
454 const char * name;
455 int & flag;
456 int val;
457 const char * descript;
458} printopts[] = {
[0e464f6]459 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
460 { "asterr", errorp, true, "print AST on error" },
[62ce290]461 { "declstats", declstatsp, true, "code property statistics" },
462 { "parse", yydebug, true, "yacc (parsing) debug information" },
463 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
464 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]465 { "rsteps", resolvep, true, "print resolver steps" },
466 { "tree", parsep, true, "print parse tree" },
467 // code dumps
468 { "ast", astp, true, "print AST after parsing" },
469 { "symevt", symtabp, true, "print AST after symbol table events" },
470 { "altexpr", expraltp, true, "print alternatives for expressions" },
471 { "astdecl", validp, true, "print AST after declaration validation pass" },
472 { "resolver", bresolvep, true, "print AST before resolver step" },
473 { "astexpr", exprp, true, "print AST after expression analysis" },
474 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
475 { "tuple", tuplep, true, "print AST after tuple expansion" },
476 { "astgen", genericsp, true, "print AST after instantiate generics" },
477 { "box", bboxp, true, "print AST before box step" },
478 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]479};
480enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
481
[3e96559]482static void usage( char *argv[] ) {
[e0bd0f9]483 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]484 int i = 0, j = 1; // j skips starting colon
485 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
486 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]487 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
488 cout << " -" << optstring[j] << ",";
489 } else { // no flag
490 j -= 1; // compensate
491 cout << " ";
492 } // if
493 cout << " --" << left << setw(12) << long_opts[i].name << " ";
494 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
495 cout << "one of: " << endl;
496 for ( int i = 0; i < printoptsSize; i += 1 ) {
497 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
498 } // for
499 } else {
500 cout << description[i] << endl;
501 } // if
[3e96559]502 } // if
[62ce290]503 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]504 } // for
505 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
506 exit( EXIT_FAILURE );
507} // usage
508
[e0bd0f9]509static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]510 opterr = 0; // (global) prevent getopt from printing error messages
511
[c5e5109]512 bool Wsuppress = false, Werror = false;
[0da3e2c]513 int c;
[3e96559]514 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]515 switch ( c ) {
[1a69a90]516 case 'c': // diagnostic colors
517 if ( strcmp( optarg, "always" ) == 0 ) {
518 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
519 } else if ( strcmp( optarg, "never" ) == 0 ) {
520 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
521 } else if ( strcmp( optarg, "auto" ) == 0 ) {
522 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
523 } // if
524 break;
[3e96559]525 case 'h': // help message
526 usage( argv ); // no return
[53d3ab4b]527 break;
[3e96559]528 case 'l': // generate libcfa.c
[0da3e2c]529 libcfap = true;
530 break;
[62ce290]531 case 'L': // generate line marks
[6de43b6]532 linemarks = true;
[c850687]533 break;
[3e96559]534 case 'm': // do not replace main
535 nomainp = true;
[0da3e2c]536 break;
[62ce290]537 case 'N': // do not generate line marks
[6de43b6]538 linemarks = false;
[c59bde6]539 break;
[62ce290]540 case 'n': // do not read prelude
[3e96559]541 nopreludep = true;
[0da3e2c]542 break;
[62ce290]543 case 'p': // generate prototypes for prelude functions
544 genproto = true;
[0da3e2c]545 break;
[62ce290]546 case 'P': // print options
547 for ( int i = 0;; i += 1 ) {
548 if ( i == printoptsSize ) {
549 cout << "Unknown --print option " << optarg << endl;
550 goto Default;
551 } // if
552 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
553 printopts[i].flag = printopts[i].val;
554 break;
555 } // if
556 } // for
[0da3e2c]557 break;
[62ce290]558 case PreludeDir: // prelude directory for debug/nodebug, hidden
559 PreludeDirector = optarg;
[3b3491b6]560 break;
[3e96559]561 case 'S': // enable profiling information, argument comma separated list of names
562 Stats::parse_params( optarg );
[ebcc940]563 break;
[dee1f89]564 case 't': // building cfa stdlib
[0da3e2c]565 treep = true;
566 break;
[dee1f89]567 case 'g': // wait for gdb
568 waiting_for_gdb = true;
569 break;
[3e96559]570 case 'w': // suppress all warnings, hidden
[c5e5109]571 Wsuppress = true;
[44bca7f]572 break;
[3e96559]573 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]574 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]575 SemanticWarning_EnableAll();
[44bca7f]576 } else if ( strcmp( optarg, "error" ) == 0 ) {
577 Werror = true;
578 } else {
579 char * warning = optarg;
580 Severity s;
581 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
582 warning += 3;
583 s = Severity::Suppress;
584 } else {
585 s = Severity::Warn;
586 } // if
[68e9ace]587 SemanticWarning_Set( warning, s );
[44bca7f]588 } // if
589 break;
[3e96559]590 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]591 break;
[3e96559]592 case '?': // unknown option
593 if ( optopt ) { // short option ?
594 cout << "Unknown option -" << (char)optopt << endl;
595 } else {
596 cout << "Unknown option " << argv[optind - 1] << endl;
597 } // if
598 goto Default;
599 case ':': // missing option
[ae47a23]600 if ( optopt ) { // short option ?
[3e96559]601 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]602 } else {
[3e96559]603 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]604 } // if
[3e96559]605 goto Default;
606 Default:
607 default:
608 usage( argv ); // no return
[0da3e2c]609 } // switch
610 } // while
[44bca7f]611
612 if ( Werror ) {
[68e9ace]613 SemanticWarning_WarningAsError();
[44bca7f]614 } // if
[c5e5109]615 if ( Wsuppress ) {
616 SemanticWarning_SuppressAll();
617 } // if
[44bca7f]618 // for ( const auto w : WarningFormats ) {
619 // cout << w.name << ' ' << (int)w.severity << endl;
620 // } // for
[0da3e2c]621} // parse_cmdline
622
[8b7ee09]623static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]624 extern int yyparse( void );
[cbaee0d]625 extern FILE * yyin;
[0da3e2c]626 extern int yylineno;
627
[8b7ee09]628 ::linkage = linkage; // set globals
[0da3e2c]629 yyin = input;
630 yylineno = 1;
631 int parseStatus = yyparse();
[81419b5]632
633 fclose( input );
[0da3e2c]634 if ( shouldExit || parseStatus != 0 ) {
635 exit( parseStatus );
[81419b5]636 } // if
[0da3e2c]637} // parse
[81419b5]638
[1ab4ce2]639static bool notPrelude( Declaration * decl ) {
640 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]641} // notPrelude
[1ab4ce2]642
[e6955b1]643static void dump( list< Declaration * > & translationUnit, ostream & out ) {
644 list< Declaration * > decls;
[926af74]645
[62ce290]646 if ( genproto ) {
[e6955b1]647 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]648 } else {
649 decls = translationUnit;
[926af74]650 } // if
[1ab4ce2]651
[e39241b]652 // depending on commandline options, either generate code or dump the AST
653 if ( codegenp ) {
[62ce290]654 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]655 } else {
656 printAll( decls, out );
[3e96559]657 } // if
[7f5566b]658 deleteAll( translationUnit );
[0da3e2c]659} // dump
[1ab4ce2]660
[51b73452]661// Local Variables: //
[b87a5ed]662// tab-width: 4 //
663// mode: c++ //
664// compile-command: "make install" //
[51b73452]665// End: //
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