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source: src/main.cc @ 148ba7d

ADTast-experimentalenumforall-pointer-decaypthread-emulationqualifiedEnum

Last change on this file since 148ba7d was a36eb2d, checked in by Andrew Beach <ajbeach@…>, 3 years ago
First translation of the Gen Init pass. Passed the tests.
Property mode set to `100644`
File size: 28.3 KB

Rev	Line
[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
[68fe946e]	11	// Last Modified By : Andrew Beach
[a36eb2d]	12	// Last Modified On : Fri Oct 22 16:06:00 2021
	13	// Update Count : 653
[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]	31	using 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
[3b3491b]	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
[55cbff8]	45	#include "Common/DeclStats.hpp" // for printDeclStats
	46	#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
[7abee38]	47	#include "Common/Stats.h"
[cbbd5b48]	48	#include "Common/PassVisitor.h"
[bf2438c]	49	#include "Common/SemanticError.h" // for SemanticError
	50	#include "Common/UnimplementedError.h" // for UnimplementedError
	51	#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]	52	#include "Concurrency/Waitfor.h" // for generateWaitfor
[0c730d9]	53	#include "ControlStruct/ExceptDecl.h" // for translateExcept
[bf2438c]	54	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
	55	#include "ControlStruct/Mutate.h" // for mutate
	56	#include "GenPoly/Box.h" // for box
	57	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	58	#include "GenPoly/Lvalue.h" // for convertLvalue
	59	#include "GenPoly/Specialize.h" // for convertSpecializations
	60	#include "InitTweak/FixInit.h" // for fix
	61	#include "InitTweak/GenInit.h" // for genInit
	62	#include "MakeLibCfa.h" // for makeLibCfa
	63	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	64	#include "Parser/TypedefTable.h" // for TypedefTable
	65	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
	66	#include "ResolvExpr/Resolver.h" // for resolve
	67	#include "SymTab/Validate.h" // for validate
[bffcd66]	68	#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]	69	#include "SynTree/Declaration.h" // for Declaration
	70	#include "SynTree/Visitor.h" // for acceptAll
	71	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]	72	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	73
[4615ac8]	74
[3e96559]	75	static void NewPass( const char * const name ) {
	76	Stats::Heap::newPass( name );
[1cb7fab2]	77	using namespace Stats::Counters;
[b8665e3]	78	{
[3e96559]	79	static auto group = build<CounterGroup>( "Pass Visitor" );
	80	auto pass = build<CounterGroup>( name, group );
[b8665e3]	81	pass_visitor_stats.depth = 0;
[3e96559]	82	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	83	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	84	}
	85	{
[3e96559]	86	static auto group = build<CounterGroup>( "Syntax Node" );
	87	auto pass = build<CounterGroup>( name, group );
	88	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	89	}
[675716e]	90	}
	91
[3e96559]	92	#define PASS( name, pass ) \
[ecaeac6e]	93	if ( errorp ) { cerr << name << endl; } \
[675716e]	94	NewPass(name); \
[4f97937]	95	Stats::Time::StartBlock(name); \
	96	pass; \
	97	Stats::Time::StopBlock();
[0da3e2c]	98
[8b7ee09]	99	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	100	TypedefTable typedefTable;
[cbaee0d]	101	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	102
[ef22ad6]	103	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	104
[bffcd66]	105	static string PreludeDirector = "";
[4dcaed2]	106
[77d601f]	107	static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]	108	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	109	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]	110	static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]	111
[0afffee]	112	static void backtrace( int start ) { // skip first N stack frames
[74330e7]	113	enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]	114	void * array[Frames];
[74330e7]	115	size_t size = ::backtrace( array, Frames );
[0afffee]	116	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	117
	118	*index( messages[0], '(' ) = '\0'; // find executable name
	119	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	120
[b542bfb]	121	// skip last 2 stack frames after main
[74330e7]	122	for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	123	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]	124
	125	for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]	126	if ( *p == '(' ) {
[46f6134]	127	mangled_name = p;
[0afffee]	128	} else if ( *p == '+' ) {
[e6955b1]	129	offset_begin = p;
[0afffee]	130	} else if ( *p == ')' ) {
[e6955b1]	131	offset_end = p;
	132	break;
	133	} // if
	134	} // for
	135
	136	// if line contains symbol, attempt to demangle
[b542bfb]	137	int frameNo = i - start;
[e6955b1]	138	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	139	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	140	*offset_begin++ = '\0';
	141	*offset_end++ = '\0';
	142
[0afffee]	143	int status;
[e6955b1]	144	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	145	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	146	if ( status == 0 ) { // demangling successful ?
[b542bfb]	147	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	148	<< real_name << "+" << offset_begin << offset_end << endl;
	149	} else { // otherwise, output mangled name
[b542bfb]	150	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	151	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	152	} // if
[0afffee]	153
[e6955b1]	154	free( real_name );
	155	} else { // otherwise, print the whole line
[b542bfb]	156	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	157	} // if
	158	} // for
[b542bfb]	159
[e6955b1]	160	free( messages );
[b542bfb]	161	} // backtrace
	162
[bffcd66]	163	#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
	164
[1f68d5d]	165	static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]	166	act.sa_flags = flags;
	167
	168	if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]	169	cerr << "cfa-cpp compilation error problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]	170	_exit( EXIT_FAILURE );
	171	} // if
[1f68d5d]	172	}
	173
	174	static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
	175	struct sigaction act;
	176	act.sa_sigaction = (void ()(int, siginfo_t , void *))handler;
	177	_Signal(act, sig, flags);
	178	} // Signal
	179
	180	static void Signal( int sig, void (* handler)(int), int flags ) {
	181	struct sigaction act;
	182	act.sa_handler = handler;
	183	_Signal(act, sig, flags);
[bffcd66]	184	} // Signal
	185
	186	static void sigSegvBusHandler( SIGPARMS ) {
	187	if ( sfp->si_addr == nullptr ) {
	188	cerr << "Null pointer (nullptr) dereference." << endl;
	189	} else {
	190	cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
	191	<< "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;
	192	} // if
[b542bfb]	193	backtrace( 2 ); // skip first 2 stack frames
[3e96559]	194	abort(); // cause core dump for debugging
[e6955b1]	195	} // sigSegvBusHandler
[0da3e2c]	196
[74330e7]	197	static void sigFpeHandler( SIGPARMS ) {
	198	const char * msg;
	199
	200	switch ( sfp->si_code ) {
	201	case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
	202	case FPE_FLTOVF: msg = "overflow"; break;
	203	case FPE_FLTUND: msg = "underflow"; break;
	204	case FPE_FLTRES: msg = "inexact result"; break;
	205	case FPE_FLTINV: msg = "invalid operation"; break;
	206	default: msg = "unknown";
	207	} // choose
	208	cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
	209	<< "Possible cause is constant-expression evaluation invalid." << endl;
	210	backtrace( 2 ); // skip first 2 stack frames
	211	abort(); // cause core dump for debugging
	212	} // sigFpeHandler
	213
[bffcd66]	214	static void sigAbortHandler( SIGPARMS ) {
[b542bfb]	215	backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]	216	Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]	217	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	218	} // sigAbortHandler
	219
[cbaee0d]	220	int main( int argc, char * argv[] ) {
[3b8e52c]	221	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	222	ostream * output = & cout;
[e6955b1]	223	list< Declaration * > translationUnit;
	224
[bffcd66]	225	Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
	226	Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]	227	Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]	228	Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]	229
[bffcd66]	230	// cout << "main" << endl;
[44bca7f]	231	// for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]	232	// cout << '\t' << argv[i] << endl;
[44bca7f]	233	// } // for
	234
[e0bd0f9]	235	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	236	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	237
[ef22ad6]	238	if ( waiting_for_gdb ) {
[bffcd66]	239	cerr << "Waiting for gdb" << endl;
	240	cerr << "run :" << endl;
	241	cerr << " gdb attach " << getpid() << endl;
[dee1f89]	242	raise(SIGSTOP);
[ef22ad6]	243	} // if
[dee1f89]	244
[b87a5ed]	245	try {
[81419b5]	246	// choose to read the program from a file or stdin
[3b8e52c]	247	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	248	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	249	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	250	optind += 1;
[3b8e52c]	251	} else { // no input file name
[b87a5ed]	252	input = stdin;
	253	} // if
	254
[79eaeb7]	255	Stats::Time::StartGlobal();
[3c0d4cd]	256	NewPass("Parse");
	257	Stats::Time::StartBlock("Parse");
[675716e]	258
[159c62e]	259	// read in the builtins, extras, and the prelude
[de62360d]	260	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	261	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	262
[37fe352]	263	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	264
[807ce84]	265	// Read to gcc builtins, if not generating the cfa library
[37fe352]	266	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	267	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	268	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	269
[159c62e]	270	// read the extra prelude in, if not generating the cfa library
[37fe352]	271	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	272	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	273	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	274
[81419b5]	275	if ( ! libcfap ) {
[faf8857]	276	// read the prelude in, if not generating the cfa library
[e523b07]	277	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	278	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	279	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	280
	281	// Read to cfa builtins, if not generating the cfa library
[37fe352]	282	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	283	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	284	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	285	} // if
	286	} // if
[81419b5]	287
[926af74]	288	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	289
[b87a5ed]	290	if ( parsep ) {
[e6955b1]	291	parseTree->printList( cout );
[0da3e2c]	292	delete parseTree;
[3e96559]	293	return EXIT_SUCCESS;
[b87a5ed]	294	} // if
	295
[0da3e2c]	296	buildList( parseTree, translationUnit );
	297	delete parseTree;
[cbaee0d]	298	parseTree = nullptr;
[b87a5ed]	299
	300	if ( astp ) {
[1ab4ce2]	301	dump( translationUnit );
[3e96559]	302	return EXIT_SUCCESS;
[b87a5ed]	303	} // if
	304
[036dd5f]	305	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	306	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	307	// works okay for now.
	308	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	309	Stats::Time::StopBlock();
[036dd5f]	310
[0c730d9]	311	PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]	312	if ( exdeclp ) {
	313	dump( translationUnit );
	314	return EXIT_SUCCESS;
	315	} // if
[0c730d9]	316
[839ccbb]	317	// add the assignment statement after the initialization of a type parameter
[675716e]	318	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]	319	if ( symtabp ) {
[46f6134]	320	deleteAll( translationUnit );
[3e96559]	321	return EXIT_SUCCESS;
[b87a5ed]	322	} // if
	323
[81419b5]	324	if ( expraltp ) {
[bff09c8]	325	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	326	acceptAll( translationUnit, printer );
[3e96559]	327	return EXIT_SUCCESS;
[b87a5ed]	328	} // if
	329
	330	if ( validp ) {
[1ab4ce2]	331	dump( translationUnit );
[3e96559]	332	return EXIT_SUCCESS;
[b87a5ed]	333	} // if
	334
[046a890]	335	PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[675716e]	336	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
	337	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[9f5a19fa]	338
[76b378d]	339	CodeTools::fillLocations( translationUnit );
	340
[4a8f150]	341	if( useNewAST ) {
[3746f777]	342	if (Stats::Counters::enabled) {
	343	ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
	344	ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
	345	}
[9ea38de]	346	auto transUnit = convert( move( translationUnit ) );
[9f5a19fa]	347
[68fe946e]	348	forceFillCodeLocations( transUnit );
	349
[a36eb2d]	350	PASS( "Gen Init", InitTweak::genInit( transUnit ) );
[9f5a19fa]	351	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
[68fe946e]	352
[da6396f]	353	if ( libcfap ) {
	354	// Generate the bodies of cfa library functions.
	355	LibCfa::makeLibCfa( transUnit );
	356	} // if
[68fe946e]	357
	358	if ( declstatsp ) {
	359	printDeclStats( transUnit );
	360	return EXIT_SUCCESS;
	361	} // if
	362
	363	if ( bresolvep ) {
	364	dump( move( transUnit ) );
	365	return EXIT_SUCCESS;
	366	} // if
	367
	368	if ( resolvprotop ) {
[55cbff8]	369	dumpAsResolverProto( transUnit );
[68fe946e]	370	return EXIT_SUCCESS;
	371	} // if
	372
[9ea38de]	373	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]	374	if ( exprp ) {
[e499381]	375	dump( move( transUnit ) );
[490fb92e]	376	return EXIT_SUCCESS;
	377	} // if
	378
[f57faf6f]	379	forceFillCodeLocations( transUnit );
[4a8f150]	380
[490fb92e]	381	PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[da6396f]	382
[9ea38de]	383	translationUnit = convert( move( transUnit ) );
[a77257be]	384	} else {
[a36eb2d]	385	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[9f5a19fa]	386	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
	387
[da6396f]	388	if ( libcfap ) {
	389	// Generate the bodies of cfa library functions.
	390	LibCfa::makeLibCfa( translationUnit );
	391	} // if
[68fe946e]	392
	393	if ( declstatsp ) {
	394	CodeTools::printDeclStats( translationUnit );
	395	deleteAll( translationUnit );
	396	return EXIT_SUCCESS;
	397	} // if
	398
	399	if ( bresolvep ) {
	400	dump( translationUnit );
	401	return EXIT_SUCCESS;
	402	} // if
	403
	404	CodeTools::fillLocations( translationUnit );
	405
	406	if ( resolvprotop ) {
	407	CodeTools::dumpAsResolvProto( translationUnit );
	408	return EXIT_SUCCESS;
	409	} // if
	410
[a77257be]	411	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]	412	if ( exprp ) {
	413	dump( translationUnit );
	414	return EXIT_SUCCESS;
	415	}
[4615ac8]	416
[490fb92e]	417	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
	418	}
[81419b5]	419
[71f4e4f]	420	// fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]	421	if ( ctorinitp ) {
	422	dump ( translationUnit );
[3e96559]	423	return EXIT_SUCCESS;
[926af74]	424	} // if
[71f4e4f]	425
[675716e]	426	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]	427
[046a890]	428	PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]	429
[675716e]	430	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	431
[675716e]	432	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	433
[675716e]	434	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	435
	436	if ( tuplep ) {
	437	dump( translationUnit );
[3e96559]	438	return EXIT_SUCCESS;
	439	} // if
[141b786]	440
[675716e]	441	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	442
[675716e]	443	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	444	if ( genericsp ) {
	445	dump( translationUnit );
[3e96559]	446	return EXIT_SUCCESS;
	447	} // if
[b4f8808]	448
[675716e]	449	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	450
[fea7ca7]	451	if ( bboxp ) {
	452	dump( translationUnit );
[3e96559]	453	return EXIT_SUCCESS;
[926af74]	454	} // if
[675716e]	455	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	456
[aff7e86]	457	PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
	458
	459	// Code has been lowered to C, now we can start generation.
	460
[8905f56]	461	if ( bcodegenp ) {
	462	dump( translationUnit );
[3e96559]	463	return EXIT_SUCCESS;
	464	} // if
[8905f56]	465
[13de47bc]	466	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	467	output = new ofstream( argv[ optind ] );
	468	} // if
[0270824]	469
[7b15d7a]	470	CodeTools::fillLocations( translationUnit );
[62ce290]	471	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	472
[37fe352]	473	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	474	if ( output != &cout ) {
[b87a5ed]	475	delete output;
	476	} // if
[77d601f]	477	} catch ( SemanticErrorException & e ) {
[b87a5ed]	478	if ( errorp ) {
[e6955b1]	479	cerr << "---AST at error:---" << endl;
	480	dump( translationUnit, cerr );
	481	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	482	} // if
[d55d7a6]	483	e.print();
[e6955b1]	484	if ( output != &cout ) {
[b87a5ed]	485	delete output;
	486	} // if
[3e96559]	487	return EXIT_FAILURE;
[77d601f]	488	} catch ( UnimplementedError & e ) {
[e6955b1]	489	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	490	if ( output != &cout ) {
[b87a5ed]	491	delete output;
	492	} // if
[3e96559]	493	return EXIT_FAILURE;
[77d601f]	494	} catch ( CompilerError & e ) {
[e6955b1]	495	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	496	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	497	if ( output != &cout ) {
[b87a5ed]	498	delete output;
	499	} // if
[3e96559]	500	return EXIT_FAILURE;
[77d601f]	501	} catch ( std::bad_alloc & ) {
	502	cerr << "cfa-cpp compilation error std::bad_alloc" << endl;
	503	backtrace( 1 );
	504	abort();
[3e96559]	505	} catch ( ... ) {
[bffcd66]	506	exception_ptr eptr = current_exception();
[4990812]	507	try {
	508	if (eptr) {
[bffcd66]	509	rethrow_exception(eptr);
[3e96559]	510	} else {
[77d601f]	511	cerr << "cfa-cpp compilation error exception uncaught and unknown" << endl;
[3e96559]	512	} // if
[77d601f]	513	} catch( const exception & e ) {
	514	cerr << "cfa-cpp compilation error uncaught exception \"" << e.what() << "\"\n";
[3e96559]	515	} // try
	516	return EXIT_FAILURE;
	517	} // try
[b87a5ed]	518
[39786813]	519	deleteAll( translationUnit );
[1cb7fab2]	520	Stats::print();
[3e96559]	521	return EXIT_SUCCESS;
[d9a0e76]	522	} // main
[51b7345]	523
[0da3e2c]	524
[3e9de01]	525	static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]	526
[62ce290]	527	enum { PreludeDir = 128 };
[3e96559]	528	static struct option long_opts[] = {
[1a69a90]	529	{ "colors", required_argument, nullptr, 'c' },
	530	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	531	{ "help", no_argument, nullptr, 'h' },
	532	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	533	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	534	{ "no-main", no_argument, 0, 'm' },
[62ce290]	535	{ "no-linemarks", no_argument, nullptr, 'N' },
	536	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	537	{ "prototypes", no_argument, nullptr, 'p' },
[7215000]	538	{ "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]	539	{ "old-ast", no_argument, nullptr, 'O'},
	540	{ "new-ast", no_argument, nullptr, 'A'},
[62ce290]	541	{ "print", required_argument, nullptr, 'P' },
	542	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	543	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	544	{ "tree", no_argument, nullptr, 't' },
	545	{ "", no_argument, nullptr, 0 }, // -w
	546	{ "", no_argument, nullptr, 0 }, // -W
	547	{ "", no_argument, nullptr, 0 }, // -D
	548	{ nullptr, 0, nullptr, 0 }
	549	}; // long_opts
	550
	551	static const char * description[] = {
[aa88cb9a]	552	"diagnostic color: never, always, auto", // -c
[3e9de01]	553	"wait for gdb to attach", // -g
[aa88cb9a]	554	"print translator help message", // -h
[3e9de01]	555	"generate libcfa.c", // -l
	556	"generate line marks", // -L
	557	"do not replace main", // -m
	558	"do not generate line marks", // -N
	559	"do not read prelude", // -n
[aa88cb9a]	560	"do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]	561	"only print deterministic output", // -d
	562	"Use the old-ast", // -O
	563	"Use the new-ast", // -A
	564	"print", // -P
[62ce290]	565	"<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]	566	"<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]	567	"building cfa standard lib", // -t
	568	"", // -w
	569	"", // -W
	570	"", // -D
[3e96559]	571	}; // description
	572
[0c0f548]	573	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	574
	575	static struct Printopts {
	576	const char * name;
	577	int & flag;
	578	int val;
	579	const char * descript;
	580	} printopts[] = {
[0e464f6]	581	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	582	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	583	{ "declstats", declstatsp, true, "code property statistics" },
	584	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	585	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	586	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	587	{ "rsteps", resolvep, true, "print resolver steps" },
	588	{ "tree", parsep, true, "print parse tree" },
	589	// code dumps
	590	{ "ast", astp, true, "print AST after parsing" },
[00da199]	591	{ "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]	592	{ "symevt", symtabp, true, "print AST after symbol table events" },
	593	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	594	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	595	{ "resolver", bresolvep, true, "print AST before resolver step" },
	596	{ "astexpr", exprp, true, "print AST after expression analysis" },
	597	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	598	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	599	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	600	{ "box", bboxp, true, "print AST before box step" },
	601	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	602	};
	603	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	604
[77d601f]	605	static void usage( char * argv[] ) {
[e0bd0f9]	606	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	607	int i = 0, j = 1; // j skips starting colon
	608	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	609	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	610	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	611	cout << " -" << optstring[j] << ",";
	612	} else { // no flag
	613	j -= 1; // compensate
	614	cout << " ";
	615	} // if
	616	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	617	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	618	cout << "one of: " << endl;
	619	for ( int i = 0; i < printoptsSize; i += 1 ) {
	620	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	621	} // for
	622	} else {
	623	cout << description[i] << endl;
	624	} // if
[3e96559]	625	} // if
[62ce290]	626	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	627	} // for
	628	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	629	exit( EXIT_FAILURE );
	630	} // usage
	631
[e0bd0f9]	632	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	633	opterr = 0; // (global) prevent getopt from printing error messages
	634
[c5e5109]	635	bool Wsuppress = false, Werror = false;
[0da3e2c]	636	int c;
[3e96559]	637	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	638	switch ( c ) {
[1a69a90]	639	case 'c': // diagnostic colors
	640	if ( strcmp( optarg, "always" ) == 0 ) {
	641	ErrorHelpers::colors = ErrorHelpers::Colors::Always;
	642	} else if ( strcmp( optarg, "never" ) == 0 ) {
	643	ErrorHelpers::colors = ErrorHelpers::Colors::Never;
	644	} else if ( strcmp( optarg, "auto" ) == 0 ) {
	645	ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
	646	} // if
	647	break;
[3e96559]	648	case 'h': // help message
	649	usage( argv ); // no return
[53d3ab4b]	650	break;
[3e96559]	651	case 'l': // generate libcfa.c
[0da3e2c]	652	libcfap = true;
	653	break;
[62ce290]	654	case 'L': // generate line marks
[6de43b6]	655	linemarks = true;
[c850687]	656	break;
[3e96559]	657	case 'm': // do not replace main
	658	nomainp = true;
[0da3e2c]	659	break;
[62ce290]	660	case 'N': // do not generate line marks
[6de43b6]	661	linemarks = false;
[c59bde6]	662	break;
[62ce290]	663	case 'n': // do not read prelude
[3e96559]	664	nopreludep = true;
[0da3e2c]	665	break;
[62ce290]	666	case 'p': // generate prototypes for prelude functions
	667	genproto = true;
[0da3e2c]	668	break;
[7215000]	669	case 'd': // don't print non-deterministic output
[a77257be]	670	deterministic_output = true;
	671	break;
	672	case 'O': // don't print non-deterministic output
	673	useNewAST = false;
	674	break;
	675	case 'A': // don't print non-deterministic output
	676	useNewAST = true;
[7215000]	677	break;
[62ce290]	678	case 'P': // print options
	679	for ( int i = 0;; i += 1 ) {
	680	if ( i == printoptsSize ) {
	681	cout << "Unknown --print option " << optarg << endl;
	682	goto Default;
	683	} // if
	684	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	685	printopts[i].flag = printopts[i].val;
	686	break;
	687	} // if
	688	} // for
[0da3e2c]	689	break;
[62ce290]	690	case PreludeDir: // prelude directory for debug/nodebug, hidden
	691	PreludeDirector = optarg;
[3b3491b]	692	break;
[3e96559]	693	case 'S': // enable profiling information, argument comma separated list of names
	694	Stats::parse_params( optarg );
[ebcc940]	695	break;
[dee1f89]	696	case 't': // building cfa stdlib
[0da3e2c]	697	treep = true;
	698	break;
[dee1f89]	699	case 'g': // wait for gdb
	700	waiting_for_gdb = true;
	701	break;
[3e96559]	702	case 'w': // suppress all warnings, hidden
[c5e5109]	703	Wsuppress = true;
[44bca7f]	704	break;
[3e96559]	705	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	706	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	707	SemanticWarning_EnableAll();
[44bca7f]	708	} else if ( strcmp( optarg, "error" ) == 0 ) {
	709	Werror = true;
	710	} else {
	711	char * warning = optarg;
	712	Severity s;
	713	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	714	warning += 3;
	715	s = Severity::Suppress;
	716	} else {
	717	s = Severity::Warn;
	718	} // if
[68e9ace]	719	SemanticWarning_Set( warning, s );
[44bca7f]	720	} // if
	721	break;
[3e96559]	722	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	723	break;
[3e96559]	724	case '?': // unknown option
	725	if ( optopt ) { // short option ?
	726	cout << "Unknown option -" << (char)optopt << endl;
	727	} else {
	728	cout << "Unknown option " << argv[optind - 1] << endl;
	729	} // if
	730	goto Default;
	731	case ':': // missing option
[ae47a23]	732	if ( optopt ) { // short option ?
[3e96559]	733	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	734	} else {
[3e96559]	735	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	736	} // if
[3e96559]	737	goto Default;
	738	Default:
	739	default:
	740	usage( argv ); // no return
[0da3e2c]	741	} // switch
	742	} // while
[44bca7f]	743
	744	if ( Werror ) {
[68e9ace]	745	SemanticWarning_WarningAsError();
[44bca7f]	746	} // if
[c5e5109]	747	if ( Wsuppress ) {
	748	SemanticWarning_SuppressAll();
	749	} // if
[44bca7f]	750	// for ( const auto w : WarningFormats ) {
	751	// cout << w.name << ' ' << (int)w.severity << endl;
	752	// } // for
[0da3e2c]	753	} // parse_cmdline
	754
[8b7ee09]	755	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	756	extern int yyparse( void );
[cbaee0d]	757	extern FILE * yyin;
[0da3e2c]	758	extern int yylineno;
	759
[8b7ee09]	760	::linkage = linkage; // set globals
[0da3e2c]	761	yyin = input;
	762	yylineno = 1;
	763	int parseStatus = yyparse();
[81419b5]	764
	765	fclose( input );
[0da3e2c]	766	if ( shouldExit \|\| parseStatus != 0 ) {
	767	exit( parseStatus );
[81419b5]	768	} // if
[0da3e2c]	769	} // parse
[81419b5]	770
[1ab4ce2]	771	static bool notPrelude( Declaration * decl ) {
	772	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	773	} // notPrelude
[1ab4ce2]	774
[e6955b1]	775	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	776	list< Declaration * > decls;
[926af74]	777
[62ce290]	778	if ( genproto ) {
[e6955b1]	779	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	780	} else {
	781	decls = translationUnit;
[926af74]	782	} // if
[1ab4ce2]	783
[e39241b]	784	// depending on commandline options, either generate code or dump the AST
	785	if ( codegenp ) {
[62ce290]	786	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	787	} else {
	788	printAll( decls, out );
[3e96559]	789	} // if
[7f5566b]	790	deleteAll( translationUnit );
[0da3e2c]	791	} // dump
[1ab4ce2]	792
[e499381]	793	static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
	794	std::list< Declaration * > translationUnit = convert( move( transUnit ) );
	795	dump( translationUnit, out );
	796	}
	797
[51b7345]	798	// Local Variables: //
[b87a5ed]	799	// tab-width: 4 //
	800	// mode: c++ //
	801	// compile-command: "make install" //
[51b7345]	802	// End: //

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