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source: src/main.cc @ 4c51aca

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since 4c51aca was dee1f89, checked in by Thierry Delisle <tdelisle@…>, 5 years ago
Libcfa make can now stop cfa-cpp when starting so a gdb session will be attached to it. Use make ... gdbwaittarget=FILENAME where the filename is the same as the one printed when building with the silent rules. cfa-cpp will print the gdb command to attach to it. You may need to change linux permissions for gdb attach, just Google it.
Property mode set to `100644`
File size: 24.7 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
[c59bde6]	11	// Last Modified By : Peter A. Buhr
[c6a1e8a]	12	// Last Modified On : Wed Jun 5 20:35:13 2019
	13	// Update Count : 601
[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
[3b3491b]	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
[4615ac8]	61	#include "SynTree/TopLvalue.h" // for assertTopLvalue, clearInn...
[bf2438c]	62	#include "SynTree/Declaration.h" // for Declaration
	63	#include "SynTree/Visitor.h" // for acceptAll
	64	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]	65	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	66
[4615ac8]	67
[51b7345]	68	using namespace std;
	69
[3e96559]	70	static void NewPass( const char * const name ) {
	71	Stats::Heap::newPass( name );
[1cb7fab2]	72	using namespace Stats::Counters;
[b8665e3]	73	{
[3e96559]	74	static auto group = build<CounterGroup>( "Pass Visitor" );
	75	auto pass = build<CounterGroup>( name, group );
[b8665e3]	76	pass_visitor_stats.depth = 0;
[3e96559]	77	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	78	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	79	}
	80	{
[3e96559]	81	static auto group = build<CounterGroup>( "Syntax Node" );
	82	auto pass = build<CounterGroup>( name, group );
	83	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	84	}
[675716e]	85	}
	86
[3e96559]	87	#define PASS( name, pass ) \
[ecaeac6e]	88	if ( errorp ) { cerr << name << endl; } \
[675716e]	89	NewPass(name); \
[4f97937]	90	Stats::Time::StartBlock(name); \
	91	pass; \
	92	Stats::Time::StopBlock();
[0da3e2c]	93
[8b7ee09]	94	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	95	TypedefTable typedefTable;
[cbaee0d]	96	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	97
[dee1f89]	98	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
	99
[3e96559]	100	static std::string PreludeDirector = "";
[4dcaed2]	101
[926af74]	102	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	103	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	104	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	105
[0afffee]	106	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	107	enum { Frames = 50 };
	108	void * array[Frames];
[0afffee]	109	int size = ::backtrace( array, Frames );
	110	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	111
	112	*index( messages[0], '(' ) = '\0'; // find executable name
	113	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	114
[b542bfb]	115	// skip last 2 stack frames after main
	116	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	117	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	118	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	119	if ( *p == '(' ) {
[46f6134]	120	mangled_name = p;
[0afffee]	121	} else if ( *p == '+' ) {
[e6955b1]	122	offset_begin = p;
[0afffee]	123	} else if ( *p == ')' ) {
[e6955b1]	124	offset_end = p;
	125	break;
	126	} // if
	127	} // for
	128
	129	// if line contains symbol, attempt to demangle
[b542bfb]	130	int frameNo = i - start;
[e6955b1]	131	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	132	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	133	*offset_begin++ = '\0';
	134	*offset_end++ = '\0';
	135
[0afffee]	136	int status;
[e6955b1]	137	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	138	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	139	if ( status == 0 ) { // demangling successful ?
[b542bfb]	140	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	141	<< real_name << "+" << offset_begin << offset_end << endl;
	142	} else { // otherwise, output mangled name
[b542bfb]	143	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	144	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	145	} // if
[0afffee]	146
[e6955b1]	147	free( real_name );
	148	} else { // otherwise, print the whole line
[b542bfb]	149	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	150	} // if
	151	} // for
[b542bfb]	152
[e6955b1]	153	free( messages );
[b542bfb]	154	} // backtrace
	155
[3e96559]	156	static void sigSegvBusHandler( int sig_num ) {
[b542bfb]	157	cerr << "CFA runtime error program cfa-cpp terminated with "
	158	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	159	<< "." << endl;
[b542bfb]	160	backtrace( 2 ); // skip first 2 stack frames
[af84a35]	161	//_exit( EXIT_FAILURE );
[3e96559]	162	abort(); // cause core dump for debugging
[e6955b1]	163	} // sigSegvBusHandler
[0da3e2c]	164
[3e96559]	165	static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
[b542bfb]	166	backtrace( 6 ); // skip first 6 stack frames
	167	signal( SIGABRT, SIG_DFL); // reset default signal handler
[9be45a2]	168	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	169	} // sigAbortHandler
	170
[cbaee0d]	171	int main( int argc, char * argv[] ) {
[3b8e52c]	172	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	173	ostream * output = & cout;
	174	const char * filename = nullptr;
[e6955b1]	175	list< Declaration * > translationUnit;
	176
	177	signal( SIGSEGV, sigSegvBusHandler );
	178	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	179	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	180
[44bca7f]	181	// std::cout << "main" << std::endl;
	182	// for ( int i = 0; i < argc; i += 1 ) {
	183	// std::cout << '\t' << argv[i] << std::endl;
	184	// } // for
	185
[0da3e2c]	186	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	187	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	188
[dee1f89]	189	if(waiting_for_gdb) {
	190	std::cerr << "Waiting for gdb" << std::endl;
	191	std::cerr << "run :" << std::endl;
	192	std::cerr << " gdb attach " << getpid() << std::endl;
	193	raise(SIGSTOP);
	194	}
	195
[b87a5ed]	196	try {
[81419b5]	197	// choose to read the program from a file or stdin
[3b8e52c]	198	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	199	input = fopen( argv[ optind ], "r" );
[3b8e52c]	200	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	201	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	202	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	203	// prelude filename comes in differently
[e523b07]	204	if ( libcfap ) filename = "prelude.cfa";
[b87a5ed]	205	optind += 1;
[3b8e52c]	206	} else { // no input file name
[b87a5ed]	207	input = stdin;
[dee1f89]	208	std::cerr << "Input from stdin" << std::endl;
[2a7e29b]	209	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	210	// a fake name along
[926af74]	211	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	212	} // if
	213
[79eaeb7]	214	Stats::Time::StartGlobal();
[3c0d4cd]	215	NewPass("Parse");
	216	Stats::Time::StartBlock("Parse");
[675716e]	217
[159c62e]	218	// read in the builtins, extras, and the prelude
[de62360d]	219	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	220	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	221
[37fe352]	222	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	223
[807ce84]	224	// Read to gcc builtins, if not generating the cfa library
[37fe352]	225	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	226	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	227	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	228
[159c62e]	229	// read the extra prelude in, if not generating the cfa library
[37fe352]	230	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	231	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	232	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	233
[81419b5]	234	if ( ! libcfap ) {
[faf8857]	235	// read the prelude in, if not generating the cfa library
[e523b07]	236	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	237	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	238	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	239
	240	// Read to cfa builtins, if not generating the cfa library
[37fe352]	241	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	242	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	243	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	244	} // if
	245	} // if
[81419b5]	246
[926af74]	247	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	248
[b87a5ed]	249	if ( parsep ) {
[e6955b1]	250	parseTree->printList( cout );
[0da3e2c]	251	delete parseTree;
[3e96559]	252	return EXIT_SUCCESS;
[b87a5ed]	253	} // if
	254
[0da3e2c]	255	buildList( parseTree, translationUnit );
	256	delete parseTree;
[cbaee0d]	257	parseTree = nullptr;
[b87a5ed]	258
	259	if ( astp ) {
[1ab4ce2]	260	dump( translationUnit );
[3e96559]	261	return EXIT_SUCCESS;
[b87a5ed]	262	} // if
	263
[036dd5f]	264	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	265	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	266	// works okay for now.
	267	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	268	Stats::Time::StopBlock();
[036dd5f]	269
[4615ac8]	270	//std::cerr << "Post-Parse Check" << std::endl;
	271	clearInnerLvalue( translationUnit );
	272	assertTopLvalue( translationUnit );
	273
[839ccbb]	274	// add the assignment statement after the initialization of a type parameter
[675716e]	275	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]	276	if ( symtabp ) {
[46f6134]	277	deleteAll( translationUnit );
[3e96559]	278	return EXIT_SUCCESS;
[b87a5ed]	279	} // if
	280
[81419b5]	281	if ( expraltp ) {
[bff09c8]	282	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	283	acceptAll( translationUnit, printer );
[3e96559]	284	return EXIT_SUCCESS;
[b87a5ed]	285	} // if
	286
	287	if ( validp ) {
[1ab4ce2]	288	dump( translationUnit );
[3e96559]	289	return EXIT_SUCCESS;
[b87a5ed]	290	} // if
	291
[4615ac8]	292	assertTopLvalue( translationUnit );
[675716e]	293	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
[4615ac8]	294	assertTopLvalue( translationUnit );
[675716e]	295	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[4615ac8]	296	assertTopLvalue( translationUnit );
[675716e]	297	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[4615ac8]	298	assertTopLvalue( translationUnit );
[675716e]	299	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[4615ac8]	300	assertTopLvalue( translationUnit );
[81419b5]	301	if ( libcfap ) {
	302	// generate the bodies of cfa library functions
	303	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	304	} // if
	305
[fa2de95]	306	if ( declstatsp ) {
	307	CodeTools::printDeclStats( translationUnit );
	308	deleteAll( translationUnit );
[3e96559]	309	return EXIT_SUCCESS;
	310	} // if
[fa2de95]	311
[de62360d]	312	if ( bresolvep ) {
[1ab4ce2]	313	dump( translationUnit );
[3e96559]	314	return EXIT_SUCCESS;
[de62360d]	315	} // if
	316
[76b378d]	317	CodeTools::fillLocations( translationUnit );
	318
[3b3491b]	319	if ( resolvprotop ) {
	320	CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]	321	return EXIT_SUCCESS;
	322	} // if
[3b3491b]	323
[4615ac8]	324	assertTopLvalue( translationUnit );
	325
[675716e]	326	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[81419b5]	327	if ( exprp ) {
[1ab4ce2]	328	dump( translationUnit );
[3e96559]	329	return EXIT_SUCCESS;
[926af74]	330	} // if
[81419b5]	331
[4615ac8]	332	clearInnerLvalue( translationUnit );
	333	assertTopLvalue( translationUnit );
	334
[71f4e4f]	335	// fix ObjectDecl - replaces ConstructorInit nodes
[675716e]	336	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[4615ac8]	337	clearInnerLvalue( translationUnit );
	338	assertTopLvalue( translationUnit );
[ca1c11f]	339	if ( ctorinitp ) {
	340	dump ( translationUnit );
[3e96559]	341	return EXIT_SUCCESS;
[926af74]	342	} // if
[71f4e4f]	343
[675716e]	344	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
[4615ac8]	345	assertTopLvalue( translationUnit );
[626dbc10]	346
[675716e]	347	PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
[4615ac8]	348	assertTopLvalue( translationUnit );
[6edd210]	349
[675716e]	350	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[4615ac8]	351	clearInnerLvalue( translationUnit );
	352	assertTopLvalue( translationUnit );
[307a732]	353
[675716e]	354	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[4615ac8]	355	clearInnerLvalue( translationUnit );
	356	assertTopLvalue( translationUnit );
[9f5ecf5]	357
[675716e]	358	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[4615ac8]	359	assertTopLvalue( translationUnit );
[626dbc10]	360
	361	if ( tuplep ) {
	362	dump( translationUnit );
[3e96559]	363	return EXIT_SUCCESS;
	364	} // if
[141b786]	365
[675716e]	366	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[4615ac8]	367	assertTopLvalue( translationUnit );
[a5f0529]	368
[675716e]	369	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	370	if ( genericsp ) {
	371	dump( translationUnit );
[3e96559]	372	return EXIT_SUCCESS;
	373	} // if
[4615ac8]	374	clearInnerLvalue( translationUnit );
	375	assertTopLvalue( translationUnit );
[675716e]	376	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[4615ac8]	377	clearInnerLvalue( translationUnit );
	378	assertTopLvalue( translationUnit );
[53d3ab4b]	379
[fea7ca7]	380	if ( bboxp ) {
	381	dump( translationUnit );
[3e96559]	382	return EXIT_SUCCESS;
[926af74]	383	} // if
[675716e]	384	PASS( "Box", GenPoly::box( translationUnit ) );
[4615ac8]	385	clearInnerLvalue( translationUnit );
	386	assertTopLvalue( translationUnit );
[81419b5]	387
[8905f56]	388	if ( bcodegenp ) {
	389	dump( translationUnit );
[3e96559]	390	return EXIT_SUCCESS;
	391	} // if
[8905f56]	392
[13de47bc]	393	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	394	output = new ofstream( argv[ optind ] );
	395	} // if
[0270824]	396
[7b15d7a]	397	CodeTools::fillLocations( translationUnit );
[4615ac8]	398	assertTopLvalue( translationUnit );
[62ce290]	399	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	400
[37fe352]	401	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	402	if ( output != &cout ) {
[b87a5ed]	403	delete output;
	404	} // if
[a16764a6]	405	} catch ( SemanticErrorException &e ) {
[b87a5ed]	406	if ( errorp ) {
[e6955b1]	407	cerr << "---AST at error:---" << endl;
	408	dump( translationUnit, cerr );
	409	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	410	} // if
[d55d7a6]	411	e.print();
[e6955b1]	412	if ( output != &cout ) {
[b87a5ed]	413	delete output;
	414	} // if
[3e96559]	415	return EXIT_FAILURE;
[b87a5ed]	416	} catch ( UnimplementedError &e ) {
[e6955b1]	417	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	418	if ( output != &cout ) {
[b87a5ed]	419	delete output;
	420	} // if
[3e96559]	421	return EXIT_FAILURE;
[b87a5ed]	422	} catch ( CompilerError &e ) {
[e6955b1]	423	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	424	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	425	if ( output != &cout ) {
[b87a5ed]	426	delete output;
	427	} // if
[3e96559]	428	return EXIT_FAILURE;
	429	} catch ( ... ) {
[4990812]	430	std::exception_ptr eptr = std::current_exception();
	431	try {
	432	if (eptr) {
	433	std::rethrow_exception(eptr);
[3e96559]	434	} else {
	435	std::cerr << "Exception Uncaught and Unknown" << std::endl;
	436	} // if
[4990812]	437	} catch(const std::exception& e) {
[0689cd9]	438	std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
[3e96559]	439	} // try
	440	return EXIT_FAILURE;
	441	} // try
[b87a5ed]	442
[39786813]	443	deleteAll( translationUnit );
[1cb7fab2]	444	Stats::print();
[3e96559]	445	return EXIT_SUCCESS;
[d9a0e76]	446	} // main
[51b7345]	447
[0da3e2c]	448
[dee1f89]	449	static const char optstring[] = ":hlLmNnpP:S:tgwW:D:F:";
[3e96559]	450
[62ce290]	451	enum { PreludeDir = 128 };
[3e96559]	452	static struct option long_opts[] = {
	453	{ "help", no_argument, nullptr, 'h' },
	454	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	455	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	456	{ "no-main", no_argument, 0, 'm' },
[62ce290]	457	{ "no-linemarks", no_argument, nullptr, 'N' },
	458	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	459	{ "prototypes", no_argument, nullptr, 'p' },
[62ce290]	460	{ "print", required_argument, nullptr, 'P' },
	461	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	462	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	463	{ "tree", no_argument, nullptr, 't' },
[dee1f89]	464	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	465	{ "", no_argument, nullptr, 0 }, // -w
	466	{ "", no_argument, nullptr, 0 }, // -W
	467	{ "", no_argument, nullptr, 0 }, // -D
	468	{ "", no_argument, nullptr, 0 }, // -F
	469	{ nullptr, 0, nullptr, 0 }
	470	}; // long_opts
	471
	472	static const char * description[] = {
[62ce290]	473	"print help message", // -h
[3e96559]	474	"generate libcfa.c", // -l
[62ce290]	475	"generate line marks", // -L
[3e96559]	476	"do not replace main", // -m
[62ce290]	477	"do not generate line marks", // -N
	478	"do not read prelude", // -n
	479	"generate prototypes for prelude functions", // -p
	480	"print", // -P
	481	"<directory> prelude directory for debug/nodebug", // no flag
	482	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[dee1f89]	483	"building cfa standard lib", // -t
	484	"wait for gdb to attach", // -g
[3e96559]	485	"", // -w
	486	"", // -W
	487	"", // -D
	488	"", // -F
	489	}; // description
	490
[0c0f548]	491	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	492
	493	static struct Printopts {
	494	const char * name;
	495	int & flag;
	496	int val;
	497	const char * descript;
	498	} printopts[] = {
[0e464f6]	499	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	500	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	501	{ "declstats", declstatsp, true, "code property statistics" },
	502	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	503	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	504	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	505	{ "rsteps", resolvep, true, "print resolver steps" },
	506	{ "tree", parsep, true, "print parse tree" },
	507	// code dumps
	508	{ "ast", astp, true, "print AST after parsing" },
	509	{ "symevt", symtabp, true, "print AST after symbol table events" },
	510	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	511	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	512	{ "resolver", bresolvep, true, "print AST before resolver step" },
	513	{ "astexpr", exprp, true, "print AST after expression analysis" },
	514	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	515	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	516	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	517	{ "box", bboxp, true, "print AST before box step" },
	518	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	519	};
	520	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	521
[3e96559]	522	static void usage( char *argv[] ) {
	523	cout << "Usage: " << argv[0] << " options are:" << endl;
	524	int i = 0, j = 1; // j skips starting colon
	525	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	526	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	527	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	528	cout << " -" << optstring[j] << ",";
	529	} else { // no flag
	530	j -= 1; // compensate
	531	cout << " ";
	532	} // if
	533	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	534	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	535	cout << "one of: " << endl;
	536	for ( int i = 0; i < printoptsSize; i += 1 ) {
	537	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	538	} // for
	539	} else {
	540	cout << description[i] << endl;
	541	} // if
[3e96559]	542	} // if
[62ce290]	543	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	544	} // for
	545	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	546	exit( EXIT_FAILURE );
	547	} // usage
	548
	549	static void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[0da3e2c]	550	opterr = 0; // (global) prevent getopt from printing error messages
	551
[c5e5109]	552	bool Wsuppress = false, Werror = false;
[0da3e2c]	553	int c;
[3e96559]	554	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	555	switch ( c ) {
[3e96559]	556	case 'h': // help message
	557	usage( argv ); // no return
[53d3ab4b]	558	break;
[3e96559]	559	case 'l': // generate libcfa.c
[0da3e2c]	560	libcfap = true;
	561	break;
[62ce290]	562	case 'L': // generate line marks
[6de43b6]	563	linemarks = true;
[c850687]	564	break;
[3e96559]	565	case 'm': // do not replace main
	566	nomainp = true;
[0da3e2c]	567	break;
[62ce290]	568	case 'N': // do not generate line marks
[6de43b6]	569	linemarks = false;
[c59bde6]	570	break;
[62ce290]	571	case 'n': // do not read prelude
[3e96559]	572	nopreludep = true;
[0da3e2c]	573	break;
[62ce290]	574	case 'p': // generate prototypes for prelude functions
	575	genproto = true;
[0da3e2c]	576	break;
[62ce290]	577	case 'P': // print options
	578	for ( int i = 0;; i += 1 ) {
	579	if ( i == printoptsSize ) {
	580	cout << "Unknown --print option " << optarg << endl;
	581	goto Default;
	582	} // if
	583	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	584	printopts[i].flag = printopts[i].val;
	585	break;
	586	} // if
	587	} // for
[0da3e2c]	588	break;
[62ce290]	589	case PreludeDir: // prelude directory for debug/nodebug, hidden
	590	PreludeDirector = optarg;
[3b3491b]	591	break;
[3e96559]	592	case 'S': // enable profiling information, argument comma separated list of names
	593	Stats::parse_params( optarg );
[ebcc940]	594	break;
[dee1f89]	595	case 't': // building cfa stdlib
[0da3e2c]	596	treep = true;
	597	break;
[dee1f89]	598	case 'g': // wait for gdb
	599	waiting_for_gdb = true;
	600	break;
[3e96559]	601	case 'w': // suppress all warnings, hidden
[c5e5109]	602	Wsuppress = true;
[44bca7f]	603	break;
[3e96559]	604	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	605	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	606	SemanticWarning_EnableAll();
[44bca7f]	607	} else if ( strcmp( optarg, "error" ) == 0 ) {
	608	Werror = true;
	609	} else {
	610	char * warning = optarg;
	611	Severity s;
	612	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	613	warning += 3;
	614	s = Severity::Suppress;
	615	} else {
	616	s = Severity::Warn;
	617	} // if
[68e9ace]	618	SemanticWarning_Set( warning, s );
[44bca7f]	619	} // if
	620	break;
[3e96559]	621	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	622	break;
[3e96559]	623	case 'F': // source file-name without suffix, hidden
[0da3e2c]	624	filename = optarg;
	625	break;
[3e96559]	626	case '?': // unknown option
	627	if ( optopt ) { // short option ?
	628	cout << "Unknown option -" << (char)optopt << endl;
	629	} else {
	630	cout << "Unknown option " << argv[optind - 1] << endl;
	631	} // if
	632	goto Default;
	633	case ':': // missing option
[ae47a23]	634	if ( optopt ) { // short option ?
[3e96559]	635	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	636	} else {
[3e96559]	637	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	638	} // if
[3e96559]	639	goto Default;
	640	Default:
	641	default:
	642	usage( argv ); // no return
[0da3e2c]	643	} // switch
	644	} // while
[44bca7f]	645
	646	if ( Werror ) {
[68e9ace]	647	SemanticWarning_WarningAsError();
[44bca7f]	648	} // if
[c5e5109]	649	if ( Wsuppress ) {
	650	SemanticWarning_SuppressAll();
	651	} // if
[44bca7f]	652	// for ( const auto w : WarningFormats ) {
	653	// cout << w.name << ' ' << (int)w.severity << endl;
	654	// } // for
[0da3e2c]	655	} // parse_cmdline
	656
[8b7ee09]	657	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	658	extern int yyparse( void );
[cbaee0d]	659	extern FILE * yyin;
[0da3e2c]	660	extern int yylineno;
	661
[8b7ee09]	662	::linkage = linkage; // set globals
[0da3e2c]	663	yyin = input;
	664	yylineno = 1;
	665	int parseStatus = yyparse();
[81419b5]	666
	667	fclose( input );
[0da3e2c]	668	if ( shouldExit \|\| parseStatus != 0 ) {
	669	exit( parseStatus );
[81419b5]	670	} // if
[0da3e2c]	671	} // parse
[81419b5]	672
[1ab4ce2]	673	static bool notPrelude( Declaration * decl ) {
	674	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	675	} // notPrelude
[1ab4ce2]	676
[e6955b1]	677	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	678	list< Declaration * > decls;
[926af74]	679
[62ce290]	680	if ( genproto ) {
[e6955b1]	681	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	682	} else {
	683	decls = translationUnit;
[926af74]	684	} // if
[1ab4ce2]	685
[e39241b]	686	// depending on commandline options, either generate code or dump the AST
	687	if ( codegenp ) {
[62ce290]	688	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	689	} else {
	690	printAll( decls, out );
[3e96559]	691	} // if
[7f5566b]	692	deleteAll( translationUnit );
[0da3e2c]	693	} // dump
[1ab4ce2]	694
[51b7345]	695	// Local Variables: //
[b87a5ed]	696	// tab-width: 4 //
	697	// mode: c++ //
	698	// compile-command: "make install" //
[51b7345]	699	// End: //

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