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source: src/main.cc @ 9131e54

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

Last change on this file since 9131e54 was 6a625de, checked in by Thierry Delisle <tdelisle@…>, 5 years ago
Some clean-up, some more assertions to check assumptions and changes to node.hpp
Property mode set to `100644`
File size: 23.0 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
[62ce290]	12	// Last Modified On : Fri May 3 16:10:52 2019
	13	// Update Count : 599
[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...
	19	#include <signal.h> // for signal, SIGABRT, SIGSEGV
[08fc48f]	20	#include <cassert> // for assertf
[bf2438c]	21	#include <cstdio> // for fopen, FILE, fclose, stdin
	22	#include <cstdlib> // for exit, free, abort, EXIT_F...
	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"
[6a625de]	42	// #include "AST/Pass.hpp"
[bf2438c]	43	#include "Common/SemanticError.h" // for SemanticError
	44	#include "Common/UnimplementedError.h" // for UnimplementedError
	45	#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]	46	#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]	47	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
	48	#include "ControlStruct/Mutate.h" // for mutate
	49	#include "GenPoly/Box.h" // for box
	50	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	51	#include "GenPoly/Lvalue.h" // for convertLvalue
	52	#include "GenPoly/Specialize.h" // for convertSpecializations
	53	#include "InitTweak/FixInit.h" // for fix
	54	#include "InitTweak/GenInit.h" // for genInit
	55	#include "MakeLibCfa.h" // for makeLibCfa
	56	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
	57	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	58	#include "Parser/TypedefTable.h" // for TypedefTable
	59	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
	60	#include "ResolvExpr/Resolver.h" // for resolve
	61	#include "SymTab/Validate.h" // for validate
	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
	67	using namespace std;
	68
[3e96559]	69	static 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]	93	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	94	TypedefTable typedefTable;
[cbaee0d]	95	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	96
[3e96559]	97	static std::string PreludeDirector = "";
[4dcaed2]	98
[926af74]	99	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	100	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	101	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	102
[0afffee]	103	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	104	enum { Frames = 50 };
	105	void * array[Frames];
[0afffee]	106	int size = ::backtrace( array, Frames );
	107	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	108
	109	*index( messages[0], '(' ) = '\0'; // find executable name
	110	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	111
[b542bfb]	112	// skip last 2 stack frames after main
	113	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	114	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	115	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	116	if ( *p == '(' ) {
[46f6134]	117	mangled_name = p;
[0afffee]	118	} else if ( *p == '+' ) {
[e6955b1]	119	offset_begin = p;
[0afffee]	120	} else if ( *p == ')' ) {
[e6955b1]	121	offset_end = p;
	122	break;
	123	} // if
	124	} // for
	125
	126	// if line contains symbol, attempt to demangle
[b542bfb]	127	int frameNo = i - start;
[e6955b1]	128	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	129	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	130	*offset_begin++ = '\0';
	131	*offset_end++ = '\0';
	132
[0afffee]	133	int status;
[e6955b1]	134	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	135	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	136	if ( status == 0 ) { // demangling successful ?
[b542bfb]	137	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	138	<< real_name << "+" << offset_begin << offset_end << endl;
	139	} else { // otherwise, output mangled name
[b542bfb]	140	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	141	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	142	} // if
[0afffee]	143
[e6955b1]	144	free( real_name );
	145	} else { // otherwise, print the whole line
[b542bfb]	146	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	147	} // if
	148	} // for
[b542bfb]	149
[e6955b1]	150	free( messages );
[b542bfb]	151	} // backtrace
	152
[3e96559]	153	static void sigSegvBusHandler( int sig_num ) {
[b542bfb]	154	cerr << "CFA runtime error program cfa-cpp terminated with "
	155	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	156	<< "." << endl;
[b542bfb]	157	backtrace( 2 ); // skip first 2 stack frames
[af84a35]	158	//_exit( EXIT_FAILURE );
[3e96559]	159	abort(); // cause core dump for debugging
[e6955b1]	160	} // sigSegvBusHandler
[0da3e2c]	161
[3e96559]	162	static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
[b542bfb]	163	backtrace( 6 ); // skip first 6 stack frames
	164	signal( SIGABRT, SIG_DFL); // reset default signal handler
[675716e]	165	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	166	} // sigAbortHandler
	167
	168
[cbaee0d]	169	int main( int argc, char * argv[] ) {
[3b8e52c]	170	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	171	ostream * output = & cout;
	172	const char * filename = nullptr;
[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
[0da3e2c]	184	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	185	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	186
	187	try {
[81419b5]	188	// choose to read the program from a file or stdin
[3b8e52c]	189	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	190	input = fopen( argv[ optind ], "r" );
[3b8e52c]	191	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	192	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	193	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	194	// prelude filename comes in differently
[e523b07]	195	if ( libcfap ) filename = "prelude.cfa";
[b87a5ed]	196	optind += 1;
[3b8e52c]	197	} else { // no input file name
[b87a5ed]	198	input = stdin;
[2a7e29b]	199	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	200	// a fake name along
[926af74]	201	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	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
[3b3491b]	300	if ( resolvprotop ) {
	301	CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]	302	return EXIT_SUCCESS;
	303	} // if
[3b3491b]	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
[675716e]	340	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[fea7ca7]	341
[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
[51b7345]	407
[0da3e2c]	408
[62ce290]	409	static const char optstring[] = ":hlLmNn:pP:S:twW:D:F:";
[3e96559]	410
[62ce290]	411	enum { PreludeDir = 128 };
[3e96559]	412	static struct option long_opts[] = {
	413	{ "help", no_argument, nullptr, 'h' },
	414	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	415	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	416	{ "no-main", no_argument, 0, 'm' },
[62ce290]	417	{ "no-linemarks", no_argument, nullptr, 'N' },
	418	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	419	{ "prototypes", no_argument, nullptr, 'p' },
[62ce290]	420	{ "print", required_argument, nullptr, 'P' },
	421	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	422	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	423	{ "tree", no_argument, nullptr, 't' },
	424	{ "", no_argument, nullptr, 0 }, // -w
	425	{ "", no_argument, nullptr, 0 }, // -W
	426	{ "", no_argument, nullptr, 0 }, // -D
	427	{ "", no_argument, nullptr, 0 }, // -F
	428	{ nullptr, 0, nullptr, 0 }
	429	}; // long_opts
	430
	431	static const char * description[] = {
[62ce290]	432	"print help message", // -h
[3e96559]	433	"generate libcfa.c", // -l
[62ce290]	434	"generate line marks", // -L
[3e96559]	435	"do not replace main", // -m
[62ce290]	436	"do not generate line marks", // -N
	437	"do not read prelude", // -n
	438	"generate prototypes for prelude functions", // -p
	439	"print", // -P
	440	"<directory> prelude directory for debug/nodebug", // no flag
	441	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[3e96559]	442	"build in tree", // -t
	443	"", // -w
	444	"", // -W
	445	"", // -D
	446	"", // -F
	447	}; // description
	448
[0c0f548]	449	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	450
	451	static struct Printopts {
	452	const char * name;
	453	int & flag;
	454	int val;
	455	const char * descript;
	456	} printopts[] = {
	457	{ "altexpr", expraltp, true, "alternatives for expressions" },
	458	{ "ascodegen", codegenp, true, "as codegen rather than AST" },
	459	{ "ast", astp, true, "AST after parsing" },
	460	{ "astdecl", validp, true, "AST after declaration validation pass" },
	461	{ "asterr", errorp, true, "AST on error" },
	462	{ "astexpr", exprp, true, "AST after expression analysis" },
	463	{ "astgen", genericsp, true, "AST after instantiate generics" },
	464	{ "box", bboxp, true, "before box step" },
	465	{ "ctordtor", ctorinitp, true, "after ctor/dtor are replaced" },
	466	{ "codegen", bcodegenp, true, "before code generation" },
	467	{ "declstats", declstatsp, true, "code property statistics" },
	468	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	469	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	470	{ "resolver", bresolvep, true, "before resolver step" },
	471	{ "rproto", resolvprotop, true, "resolver-proto instance" },
	472	{ "rsteps", resolvep, true, "resolver steps" },
	473	{ "symevt", symtabp, true, "symbol table events" },
	474	{ "tree", parsep, true, "parse tree" },
	475	{ "tuple", tuplep, true, "after tuple expansion" },
	476	};
	477	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	478
[3e96559]	479	static void usage( char *argv[] ) {
	480	cout << "Usage: " << argv[0] << " options are:" << endl;
	481	int i = 0, j = 1; // j skips starting colon
	482	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	483	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	484	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	485	cout << " -" << optstring[j] << ",";
	486	} else { // no flag
	487	j -= 1; // compensate
	488	cout << " ";
	489	} // if
	490	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	491	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	492	cout << "one of: " << endl;
	493	for ( int i = 0; i < printoptsSize; i += 1 ) {
	494	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	495	} // for
	496	} else {
	497	cout << description[i] << endl;
	498	} // if
[3e96559]	499	} // if
[62ce290]	500	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	501	} // for
	502	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	503	exit( EXIT_FAILURE );
	504	} // usage
	505
	506	static void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[0da3e2c]	507	opterr = 0; // (global) prevent getopt from printing error messages
	508
[c5e5109]	509	bool Wsuppress = false, Werror = false;
[0da3e2c]	510	int c;
[3e96559]	511	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	512	switch ( c ) {
[3e96559]	513	case 'h': // help message
	514	usage( argv ); // no return
[53d3ab4b]	515	break;
[3e96559]	516	case 'l': // generate libcfa.c
[0da3e2c]	517	libcfap = true;
	518	break;
[62ce290]	519	case 'L': // generate line marks
[6de43b6]	520	linemarks = true;
[c850687]	521	break;
[3e96559]	522	case 'm': // do not replace main
	523	nomainp = true;
[0da3e2c]	524	break;
[62ce290]	525	case 'N': // do not generate line marks
[6de43b6]	526	linemarks = false;
[c59bde6]	527	break;
[62ce290]	528	case 'n': // do not read prelude
[3e96559]	529	nopreludep = true;
[0da3e2c]	530	break;
[62ce290]	531	case 'p': // generate prototypes for prelude functions
	532	genproto = true;
[0da3e2c]	533	break;
[62ce290]	534	case 'P': // print options
	535	for ( int i = 0;; i += 1 ) {
	536	if ( i == printoptsSize ) {
	537	cout << "Unknown --print option " << optarg << endl;
	538	goto Default;
	539	} // if
	540	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	541	printopts[i].flag = printopts[i].val;
	542	break;
	543	} // if
	544	} // for
[0da3e2c]	545	break;
[62ce290]	546	case PreludeDir: // prelude directory for debug/nodebug, hidden
	547	PreludeDirector = optarg;
[3b3491b]	548	break;
[3e96559]	549	case 'S': // enable profiling information, argument comma separated list of names
	550	Stats::parse_params( optarg );
[ebcc940]	551	break;
[3e96559]	552	case 't': // build in tree
[0da3e2c]	553	treep = true;
	554	break;
[3e96559]	555	case 'w': // suppress all warnings, hidden
[c5e5109]	556	Wsuppress = true;
[44bca7f]	557	break;
[3e96559]	558	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	559	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	560	SemanticWarning_EnableAll();
[44bca7f]	561	} else if ( strcmp( optarg, "error" ) == 0 ) {
	562	Werror = true;
	563	} else {
	564	char * warning = optarg;
	565	Severity s;
	566	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	567	warning += 3;
	568	s = Severity::Suppress;
	569	} else {
	570	s = Severity::Warn;
	571	} // if
[68e9ace]	572	SemanticWarning_Set( warning, s );
[44bca7f]	573	} // if
	574	break;
[3e96559]	575	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	576	break;
[3e96559]	577	case 'F': // source file-name without suffix, hidden
[0da3e2c]	578	filename = optarg;
	579	break;
[3e96559]	580	case '?': // unknown option
	581	if ( optopt ) { // short option ?
	582	cout << "Unknown option -" << (char)optopt << endl;
	583	} else {
	584	cout << "Unknown option " << argv[optind - 1] << endl;
	585	} // if
	586	goto Default;
	587	case ':': // missing option
[ae47a23]	588	if ( optopt ) { // short option ?
[3e96559]	589	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	590	} else {
[3e96559]	591	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	592	} // if
[3e96559]	593	goto Default;
	594	Default:
	595	default:
	596	usage( argv ); // no return
[0da3e2c]	597	} // switch
	598	} // while
[44bca7f]	599
	600	if ( Werror ) {
[68e9ace]	601	SemanticWarning_WarningAsError();
[44bca7f]	602	} // if
[c5e5109]	603	if ( Wsuppress ) {
	604	SemanticWarning_SuppressAll();
	605	} // if
[44bca7f]	606	// for ( const auto w : WarningFormats ) {
	607	// cout << w.name << ' ' << (int)w.severity << endl;
	608	// } // for
[0da3e2c]	609	} // parse_cmdline
	610
[8b7ee09]	611	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	612	extern int yyparse( void );
[cbaee0d]	613	extern FILE * yyin;
[0da3e2c]	614	extern int yylineno;
	615
[8b7ee09]	616	::linkage = linkage; // set globals
[0da3e2c]	617	yyin = input;
	618	yylineno = 1;
	619	int parseStatus = yyparse();
[81419b5]	620
	621	fclose( input );
[0da3e2c]	622	if ( shouldExit \|\| parseStatus != 0 ) {
	623	exit( parseStatus );
[81419b5]	624	} // if
[0da3e2c]	625	} // parse
[81419b5]	626
[1ab4ce2]	627	static bool notPrelude( Declaration * decl ) {
	628	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	629	} // notPrelude
[1ab4ce2]	630
[e6955b1]	631	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	632	list< Declaration * > decls;
[926af74]	633
[62ce290]	634	if ( genproto ) {
[e6955b1]	635	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	636	} else {
	637	decls = translationUnit;
[926af74]	638	} // if
[1ab4ce2]	639
[e39241b]	640	// depending on commandline options, either generate code or dump the AST
	641	if ( codegenp ) {
[62ce290]	642	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	643	} else {
	644	printAll( decls, out );
[3e96559]	645	} // if
[7f5566b]	646	deleteAll( translationUnit );
[0da3e2c]	647	} // dump
[1ab4ce2]	648
[51b7345]	649	// Local Variables: //
[b87a5ed]	650	// tab-width: 4 //
	651	// mode: c++ //
	652	// compile-command: "make install" //
[51b7345]	653	// End: //

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