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source: src/main.cc @ c532847

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since c532847 was e7d6968, checked in by Fangren Yu <f37yu@…>, 4 years ago
Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc into master
Property mode set to `100644`
File size: 26.0 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
[3e9de01]	11	// Last Modified By : Peter A. Buhr
	12	// Last Modified On : Thu Oct 8 18:17:46 2020
	13	// Update Count : 637
[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
	39	#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b]	40	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]	41	#include "CodeTools/TrackLoc.h" // for fillLocations
	42	#include "Common/CompilerError.h" // for CompilerError
[7abee38]	43	#include "Common/Stats.h"
[cbbd5b48]	44	#include "Common/PassVisitor.h"
[bf2438c]	45	#include "Common/SemanticError.h" // for SemanticError
	46	#include "Common/UnimplementedError.h" // for UnimplementedError
	47	#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]	48	#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]	49	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
	50	#include "ControlStruct/Mutate.h" // for mutate
	51	#include "GenPoly/Box.h" // for box
	52	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	53	#include "GenPoly/Lvalue.h" // for convertLvalue
	54	#include "GenPoly/Specialize.h" // for convertSpecializations
	55	#include "InitTweak/FixInit.h" // for fix
	56	#include "InitTweak/GenInit.h" // for genInit
	57	#include "MakeLibCfa.h" // for makeLibCfa
	58	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	59	#include "Parser/TypedefTable.h" // for TypedefTable
	60	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
	61	#include "ResolvExpr/Resolver.h" // for resolve
	62	#include "SymTab/Validate.h" // for validate
[bffcd66]	63	#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]	64	#include "SynTree/Declaration.h" // for Declaration
	65	#include "SynTree/Visitor.h" // for acceptAll
	66	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]	67	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	68
[4615ac8]	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
[ef22ad6]	98	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	99
[bffcd66]	100	static string PreludeDirector = "";
[4dcaed2]	101
[e0bd0f9]	102	static void parse_cmdline( int argc, char *argv[] );
[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
[74330e7]	107	enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]	108	void * array[Frames];
[74330e7]	109	size_t size = ::backtrace( array, Frames );
[0afffee]	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
[74330e7]	116	for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	117	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]	118
	119	for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]	120	if ( *p == '(' ) {
[46f6134]	121	mangled_name = p;
[0afffee]	122	} else if ( *p == '+' ) {
[e6955b1]	123	offset_begin = p;
[0afffee]	124	} else if ( *p == ')' ) {
[e6955b1]	125	offset_end = p;
	126	break;
	127	} // if
	128	} // for
	129
	130	// if line contains symbol, attempt to demangle
[b542bfb]	131	int frameNo = i - start;
[e6955b1]	132	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	133	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	134	*offset_begin++ = '\0';
	135	*offset_end++ = '\0';
	136
[0afffee]	137	int status;
[e6955b1]	138	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	139	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	140	if ( status == 0 ) { // demangling successful ?
[b542bfb]	141	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	142	<< real_name << "+" << offset_begin << offset_end << endl;
	143	} else { // otherwise, output mangled name
[b542bfb]	144	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	145	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	146	} // if
[0afffee]	147
[e6955b1]	148	free( real_name );
	149	} else { // otherwise, print the whole line
[b542bfb]	150	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	151	} // if
	152	} // for
[b542bfb]	153
[e6955b1]	154	free( messages );
[b542bfb]	155	} // backtrace
	156
[bffcd66]	157	#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
	158
	159	static void Signal( int sig, void (*handler)(SIGPARMS), int flags ) {
	160	struct sigaction act;
	161
	162	act.sa_sigaction = (void ()(int, siginfo_t , void *))handler;
	163	act.sa_flags = flags;
	164
	165	if ( sigaction( sig, &act, nullptr ) == -1 ) {
	166	cerr << "CFA runtime error problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
	167	_exit( EXIT_FAILURE );
	168	} // if
	169	} // Signal
	170
	171	static void sigSegvBusHandler( SIGPARMS ) {
	172	if ( sfp->si_addr == nullptr ) {
	173	cerr << "Null pointer (nullptr) dereference." << endl;
	174	} else {
	175	cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
	176	<< "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;
	177	} // if
[b542bfb]	178	backtrace( 2 ); // skip first 2 stack frames
[3e96559]	179	abort(); // cause core dump for debugging
[e6955b1]	180	} // sigSegvBusHandler
[0da3e2c]	181
[74330e7]	182	static void sigFpeHandler( SIGPARMS ) {
	183	const char * msg;
	184
	185	switch ( sfp->si_code ) {
	186	case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
	187	case FPE_FLTOVF: msg = "overflow"; break;
	188	case FPE_FLTUND: msg = "underflow"; break;
	189	case FPE_FLTRES: msg = "inexact result"; break;
	190	case FPE_FLTINV: msg = "invalid operation"; break;
	191	default: msg = "unknown";
	192	} // choose
	193	cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
	194	<< "Possible cause is constant-expression evaluation invalid." << endl;
	195	backtrace( 2 ); // skip first 2 stack frames
	196	abort(); // cause core dump for debugging
	197	} // sigFpeHandler
	198
[bffcd66]	199	static void sigAbortHandler( SIGPARMS ) {
[b542bfb]	200	backtrace( 6 ); // skip first 6 stack frames
[bffcd66]	201	Signal( SIGABRT, (void (*)(SIGPARMS))SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]	202	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	203	} // sigAbortHandler
	204
[cbaee0d]	205	int main( int argc, char * argv[] ) {
[3b8e52c]	206	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	207	ostream * output = & cout;
[e6955b1]	208	list< Declaration * > translationUnit;
	209
[bffcd66]	210	Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
	211	Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]	212	Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]	213	Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]	214
[bffcd66]	215	// cout << "main" << endl;
[44bca7f]	216	// for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]	217	// cout << '\t' << argv[i] << endl;
[44bca7f]	218	// } // for
	219
[e0bd0f9]	220	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	221	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	222
[ef22ad6]	223	if ( waiting_for_gdb ) {
[bffcd66]	224	cerr << "Waiting for gdb" << endl;
	225	cerr << "run :" << endl;
	226	cerr << " gdb attach " << getpid() << endl;
[dee1f89]	227	raise(SIGSTOP);
[ef22ad6]	228	} // if
[dee1f89]	229
[b87a5ed]	230	try {
[81419b5]	231	// choose to read the program from a file or stdin
[3b8e52c]	232	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	233	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	234	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	235	optind += 1;
[3b8e52c]	236	} else { // no input file name
[b87a5ed]	237	input = stdin;
	238	} // if
	239
[79eaeb7]	240	Stats::Time::StartGlobal();
[3c0d4cd]	241	NewPass("Parse");
	242	Stats::Time::StartBlock("Parse");
[675716e]	243
[159c62e]	244	// read in the builtins, extras, and the prelude
[de62360d]	245	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	246	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	247
[37fe352]	248	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	249
[807ce84]	250	// Read to gcc builtins, if not generating the cfa library
[37fe352]	251	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	252	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	253	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	254
[159c62e]	255	// read the extra prelude in, if not generating the cfa library
[37fe352]	256	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	257	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	258	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	259
[81419b5]	260	if ( ! libcfap ) {
[faf8857]	261	// read the prelude in, if not generating the cfa library
[e523b07]	262	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	263	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	264	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	265
	266	// Read to cfa builtins, if not generating the cfa library
[37fe352]	267	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	268	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	269	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	270	} // if
	271	} // if
[81419b5]	272
[926af74]	273	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	274
[b87a5ed]	275	if ( parsep ) {
[e6955b1]	276	parseTree->printList( cout );
[0da3e2c]	277	delete parseTree;
[3e96559]	278	return EXIT_SUCCESS;
[b87a5ed]	279	} // if
	280
[0da3e2c]	281	buildList( parseTree, translationUnit );
	282	delete parseTree;
[cbaee0d]	283	parseTree = nullptr;
[b87a5ed]	284
	285	if ( astp ) {
[1ab4ce2]	286	dump( translationUnit );
[3e96559]	287	return EXIT_SUCCESS;
[b87a5ed]	288	} // if
	289
[036dd5f]	290	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	291	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	292	// works okay for now.
	293	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	294	Stats::Time::StopBlock();
[036dd5f]	295
[839ccbb]	296	// add the assignment statement after the initialization of a type parameter
[675716e]	297	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]	298	if ( symtabp ) {
[46f6134]	299	deleteAll( translationUnit );
[3e96559]	300	return EXIT_SUCCESS;
[b87a5ed]	301	} // if
	302
[81419b5]	303	if ( expraltp ) {
[bff09c8]	304	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	305	acceptAll( translationUnit, printer );
[3e96559]	306	return EXIT_SUCCESS;
[b87a5ed]	307	} // if
	308
	309	if ( validp ) {
[1ab4ce2]	310	dump( translationUnit );
[3e96559]	311	return EXIT_SUCCESS;
[b87a5ed]	312	} // if
	313
[046a890]	314	PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[675716e]	315	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
	316	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
	317	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
	318	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]	319	if ( libcfap ) {
	320	// generate the bodies of cfa library functions
	321	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	322	} // if
	323
[fa2de95]	324	if ( declstatsp ) {
	325	CodeTools::printDeclStats( translationUnit );
	326	deleteAll( translationUnit );
[3e96559]	327	return EXIT_SUCCESS;
	328	} // if
[fa2de95]	329
[de62360d]	330	if ( bresolvep ) {
[1ab4ce2]	331	dump( translationUnit );
[3e96559]	332	return EXIT_SUCCESS;
[de62360d]	333	} // if
	334
[76b378d]	335	CodeTools::fillLocations( translationUnit );
	336
[3b3491b]	337	if ( resolvprotop ) {
	338	CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]	339	return EXIT_SUCCESS;
	340	} // if
[3b3491b]	341
[a77257be]	342	if( useNewAST) {
[9ea38de]	343	auto transUnit = convert( move( translationUnit ) );
	344	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]	345	if ( exprp ) {
	346	translationUnit = convert( move( transUnit ) );
	347	dump( translationUnit );
	348	return EXIT_SUCCESS;
	349	} // if
	350
	351	PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[9ea38de]	352	translationUnit = convert( move( transUnit ) );
[a77257be]	353	} else {
	354	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]	355	if ( exprp ) {
	356	dump( translationUnit );
	357	return EXIT_SUCCESS;
	358	}
[4615ac8]	359
[490fb92e]	360	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
	361	}
[81419b5]	362
[71f4e4f]	363	// fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]	364	if ( ctorinitp ) {
	365	dump ( translationUnit );
[3e96559]	366	return EXIT_SUCCESS;
[926af74]	367	} // if
[71f4e4f]	368
[675716e]	369	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]	370
[046a890]	371	PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]	372
[675716e]	373	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	374
[675716e]	375	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	376
[675716e]	377	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	378
	379	if ( tuplep ) {
	380	dump( translationUnit );
[3e96559]	381	return EXIT_SUCCESS;
	382	} // if
[141b786]	383
[675716e]	384	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	385
[675716e]	386	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	387	if ( genericsp ) {
	388	dump( translationUnit );
[3e96559]	389	return EXIT_SUCCESS;
	390	} // if
[b4f8808]	391
[675716e]	392	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	393
[fea7ca7]	394	if ( bboxp ) {
	395	dump( translationUnit );
[3e96559]	396	return EXIT_SUCCESS;
[926af74]	397	} // if
[675716e]	398	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	399
[8905f56]	400	if ( bcodegenp ) {
	401	dump( translationUnit );
[3e96559]	402	return EXIT_SUCCESS;
	403	} // if
[8905f56]	404
[13de47bc]	405	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	406	output = new ofstream( argv[ optind ] );
	407	} // if
[0270824]	408
[7b15d7a]	409	CodeTools::fillLocations( translationUnit );
[62ce290]	410	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	411
[37fe352]	412	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	413	if ( output != &cout ) {
[b87a5ed]	414	delete output;
	415	} // if
[a16764a6]	416	} catch ( SemanticErrorException &e ) {
[b87a5ed]	417	if ( errorp ) {
[e6955b1]	418	cerr << "---AST at error:---" << endl;
	419	dump( translationUnit, cerr );
	420	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	421	} // if
[d55d7a6]	422	e.print();
[e6955b1]	423	if ( output != &cout ) {
[b87a5ed]	424	delete output;
	425	} // if
[3e96559]	426	return EXIT_FAILURE;
[b87a5ed]	427	} catch ( UnimplementedError &e ) {
[e6955b1]	428	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	429	if ( output != &cout ) {
[b87a5ed]	430	delete output;
	431	} // if
[3e96559]	432	return EXIT_FAILURE;
[b87a5ed]	433	} catch ( CompilerError &e ) {
[e6955b1]	434	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	435	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	436	if ( output != &cout ) {
[b87a5ed]	437	delete output;
	438	} // if
[3e96559]	439	return EXIT_FAILURE;
	440	} catch ( ... ) {
[bffcd66]	441	exception_ptr eptr = current_exception();
[4990812]	442	try {
	443	if (eptr) {
[bffcd66]	444	rethrow_exception(eptr);
[3e96559]	445	} else {
[bffcd66]	446	cerr << "Exception Uncaught and Unknown" << endl;
[3e96559]	447	} // if
[bffcd66]	448	} catch(const exception& e) {
	449	cerr << "Uncaught Exception \"" << e.what() << "\"\n";
[3e96559]	450	} // try
	451	return EXIT_FAILURE;
	452	} // try
[b87a5ed]	453
[39786813]	454	deleteAll( translationUnit );
[1cb7fab2]	455	Stats::print();
[3e96559]	456	return EXIT_SUCCESS;
[d9a0e76]	457	} // main
[51b7345]	458
[0da3e2c]	459
[3e9de01]	460	static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]	461
[62ce290]	462	enum { PreludeDir = 128 };
[3e96559]	463	static struct option long_opts[] = {
[1a69a90]	464	{ "colors", required_argument, nullptr, 'c' },
	465	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	466	{ "help", no_argument, nullptr, 'h' },
	467	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	468	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	469	{ "no-main", no_argument, 0, 'm' },
[62ce290]	470	{ "no-linemarks", no_argument, nullptr, 'N' },
	471	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	472	{ "prototypes", no_argument, nullptr, 'p' },
[7215000]	473	{ "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]	474	{ "old-ast", no_argument, nullptr, 'O'},
	475	{ "new-ast", no_argument, nullptr, 'A'},
[62ce290]	476	{ "print", required_argument, nullptr, 'P' },
	477	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	478	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	479	{ "tree", no_argument, nullptr, 't' },
	480	{ "", no_argument, nullptr, 0 }, // -w
	481	{ "", no_argument, nullptr, 0 }, // -W
	482	{ "", no_argument, nullptr, 0 }, // -D
	483	{ nullptr, 0, nullptr, 0 }
	484	}; // long_opts
	485
	486	static const char * description[] = {
[3e9de01]	487	"diagnostic color: never, always, or auto.", // -c
	488	"wait for gdb to attach", // -g
	489	"print help message", // -h
	490	"generate libcfa.c", // -l
	491	"generate line marks", // -L
	492	"do not replace main", // -m
	493	"do not generate line marks", // -N
	494	"do not read prelude", // -n
[62ce290]	495	"generate prototypes for prelude functions", // -p
[3e9de01]	496	"only print deterministic output", // -d
	497	"Use the old-ast", // -O
	498	"Use the new-ast", // -A
	499	"print", // -P
[62ce290]	500	"<directory> prelude directory for debug/nodebug", // no flag
	501	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[3e9de01]	502	"building cfa standard lib", // -t
	503	"", // -w
	504	"", // -W
	505	"", // -D
[3e96559]	506	}; // description
	507
[0c0f548]	508	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	509
	510	static struct Printopts {
	511	const char * name;
	512	int & flag;
	513	int val;
	514	const char * descript;
	515	} printopts[] = {
[0e464f6]	516	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	517	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	518	{ "declstats", declstatsp, true, "code property statistics" },
	519	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	520	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	521	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	522	{ "rsteps", resolvep, true, "print resolver steps" },
	523	{ "tree", parsep, true, "print parse tree" },
	524	// code dumps
	525	{ "ast", astp, true, "print AST after parsing" },
	526	{ "symevt", symtabp, true, "print AST after symbol table events" },
	527	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	528	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	529	{ "resolver", bresolvep, true, "print AST before resolver step" },
	530	{ "astexpr", exprp, true, "print AST after expression analysis" },
	531	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	532	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	533	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	534	{ "box", bboxp, true, "print AST before box step" },
	535	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	536	};
	537	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	538
[3e96559]	539	static void usage( char *argv[] ) {
[e0bd0f9]	540	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	541	int i = 0, j = 1; // j skips starting colon
	542	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	543	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	544	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	545	cout << " -" << optstring[j] << ",";
	546	} else { // no flag
	547	j -= 1; // compensate
	548	cout << " ";
	549	} // if
	550	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	551	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	552	cout << "one of: " << endl;
	553	for ( int i = 0; i < printoptsSize; i += 1 ) {
	554	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	555	} // for
	556	} else {
	557	cout << description[i] << endl;
	558	} // if
[3e96559]	559	} // if
[62ce290]	560	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	561	} // for
	562	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	563	exit( EXIT_FAILURE );
	564	} // usage
	565
[e0bd0f9]	566	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	567	opterr = 0; // (global) prevent getopt from printing error messages
	568
[c5e5109]	569	bool Wsuppress = false, Werror = false;
[0da3e2c]	570	int c;
[3e96559]	571	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	572	switch ( c ) {
[1a69a90]	573	case 'c': // diagnostic colors
	574	if ( strcmp( optarg, "always" ) == 0 ) {
	575	ErrorHelpers::colors = ErrorHelpers::Colors::Always;
	576	} else if ( strcmp( optarg, "never" ) == 0 ) {
	577	ErrorHelpers::colors = ErrorHelpers::Colors::Never;
	578	} else if ( strcmp( optarg, "auto" ) == 0 ) {
	579	ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
	580	} // if
	581	break;
[3e96559]	582	case 'h': // help message
	583	usage( argv ); // no return
[53d3ab4b]	584	break;
[3e96559]	585	case 'l': // generate libcfa.c
[0da3e2c]	586	libcfap = true;
	587	break;
[62ce290]	588	case 'L': // generate line marks
[6de43b6]	589	linemarks = true;
[c850687]	590	break;
[3e96559]	591	case 'm': // do not replace main
	592	nomainp = true;
[0da3e2c]	593	break;
[62ce290]	594	case 'N': // do not generate line marks
[6de43b6]	595	linemarks = false;
[c59bde6]	596	break;
[62ce290]	597	case 'n': // do not read prelude
[3e96559]	598	nopreludep = true;
[0da3e2c]	599	break;
[62ce290]	600	case 'p': // generate prototypes for prelude functions
	601	genproto = true;
[0da3e2c]	602	break;
[7215000]	603	case 'd': // don't print non-deterministic output
[a77257be]	604	deterministic_output = true;
	605	break;
	606	case 'O': // don't print non-deterministic output
	607	useNewAST = false;
	608	break;
	609	case 'A': // don't print non-deterministic output
	610	useNewAST = true;
[7215000]	611	break;
[62ce290]	612	case 'P': // print options
	613	for ( int i = 0;; i += 1 ) {
	614	if ( i == printoptsSize ) {
	615	cout << "Unknown --print option " << optarg << endl;
	616	goto Default;
	617	} // if
	618	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	619	printopts[i].flag = printopts[i].val;
	620	break;
	621	} // if
	622	} // for
[0da3e2c]	623	break;
[62ce290]	624	case PreludeDir: // prelude directory for debug/nodebug, hidden
	625	PreludeDirector = optarg;
[3b3491b]	626	break;
[3e96559]	627	case 'S': // enable profiling information, argument comma separated list of names
	628	Stats::parse_params( optarg );
[ebcc940]	629	break;
[dee1f89]	630	case 't': // building cfa stdlib
[0da3e2c]	631	treep = true;
	632	break;
[dee1f89]	633	case 'g': // wait for gdb
	634	waiting_for_gdb = true;
	635	break;
[3e96559]	636	case 'w': // suppress all warnings, hidden
[c5e5109]	637	Wsuppress = true;
[44bca7f]	638	break;
[3e96559]	639	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	640	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	641	SemanticWarning_EnableAll();
[44bca7f]	642	} else if ( strcmp( optarg, "error" ) == 0 ) {
	643	Werror = true;
	644	} else {
	645	char * warning = optarg;
	646	Severity s;
	647	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	648	warning += 3;
	649	s = Severity::Suppress;
	650	} else {
	651	s = Severity::Warn;
	652	} // if
[68e9ace]	653	SemanticWarning_Set( warning, s );
[44bca7f]	654	} // if
	655	break;
[3e96559]	656	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	657	break;
[3e96559]	658	case '?': // unknown option
	659	if ( optopt ) { // short option ?
	660	cout << "Unknown option -" << (char)optopt << endl;
	661	} else {
	662	cout << "Unknown option " << argv[optind - 1] << endl;
	663	} // if
	664	goto Default;
	665	case ':': // missing option
[ae47a23]	666	if ( optopt ) { // short option ?
[3e96559]	667	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	668	} else {
[3e96559]	669	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	670	} // if
[3e96559]	671	goto Default;
	672	Default:
	673	default:
	674	usage( argv ); // no return
[0da3e2c]	675	} // switch
	676	} // while
[44bca7f]	677
	678	if ( Werror ) {
[68e9ace]	679	SemanticWarning_WarningAsError();
[44bca7f]	680	} // if
[c5e5109]	681	if ( Wsuppress ) {
	682	SemanticWarning_SuppressAll();
	683	} // if
[44bca7f]	684	// for ( const auto w : WarningFormats ) {
	685	// cout << w.name << ' ' << (int)w.severity << endl;
	686	// } // for
[0da3e2c]	687	} // parse_cmdline
	688
[8b7ee09]	689	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	690	extern int yyparse( void );
[cbaee0d]	691	extern FILE * yyin;
[0da3e2c]	692	extern int yylineno;
	693
[8b7ee09]	694	::linkage = linkage; // set globals
[0da3e2c]	695	yyin = input;
	696	yylineno = 1;
	697	int parseStatus = yyparse();
[81419b5]	698
	699	fclose( input );
[0da3e2c]	700	if ( shouldExit \|\| parseStatus != 0 ) {
	701	exit( parseStatus );
[81419b5]	702	} // if
[0da3e2c]	703	} // parse
[81419b5]	704
[1ab4ce2]	705	static bool notPrelude( Declaration * decl ) {
	706	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	707	} // notPrelude
[1ab4ce2]	708
[e6955b1]	709	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	710	list< Declaration * > decls;
[926af74]	711
[62ce290]	712	if ( genproto ) {
[e6955b1]	713	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	714	} else {
	715	decls = translationUnit;
[926af74]	716	} // if
[1ab4ce2]	717
[e39241b]	718	// depending on commandline options, either generate code or dump the AST
	719	if ( codegenp ) {
[62ce290]	720	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	721	} else {
	722	printAll( decls, out );
[3e96559]	723	} // if
[7f5566b]	724	deleteAll( translationUnit );
[0da3e2c]	725	} // dump
[1ab4ce2]	726
[51b7345]	727	// Local Variables: //
[b87a5ed]	728	// tab-width: 4 //
	729	// mode: c++ //
	730	// compile-command: "make install" //
[51b7345]	731	// End: //

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