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source: src/main.cc @ 2472a19

new-envwith_gc

Last change on this file since 2472a19 was ff29f08, checked in by Aaron Moss <a3moss@…>, 6 years ago
Merge remote-tracking branch 'origin/master' into with_gc
Property mode set to `100644`
File size: 19.9 KB

Rev	Line
[c850687]	1
[b87a5ed]	2	//
	3	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	4	//
	5	// The contents of this file are covered under the licence agreement in the
	6	// file "LICENCE" distributed with Cforall.
	7	//
[71f4e4f]	8	// main.cc --
[b87a5ed]	9	//
[843054c2]	10	// Author : Richard C. Bilson
[b87a5ed]	11	// Created On : Fri May 15 23:12:02 2015
[c59bde6]	12	// Last Modified By : Peter A. Buhr
[c5e5109]	13	// Last Modified On : Mon May 7 14:35:57 2018
	14	// Update Count : 492
[b87a5ed]	15	//
	16
[bf2438c]	17	#include <cxxabi.h> // for __cxa_demangle
	18	#include <execinfo.h> // for backtrace, backtrace_symbols
	19	#include <getopt.h> // for no_argument, optind, geto...
	20	#include <signal.h> // for signal, SIGABRT, SIGSEGV
[08fc48f]	21	#include <cassert> // for assertf
[bf2438c]	22	#include <cstdio> // for fopen, FILE, fclose, stdin
	23	#include <cstdlib> // for exit, free, abort, EXIT_F...
	24	#include <cstring> // for index
[be9288a]	25	#include <fstream> // for ofstream
[bf2438c]	26	#include <iostream> // for operator<<, basic_ostream
	27	#include <iterator> // for back_inserter
	28	#include <list> // for list
[08fc48f]	29	#include <string> // for char_traits, operator<<
[e6955b1]	30
[bf2438c]	31	#include "../config.h" // for CFA_LIBDIR
	32	#include "CodeGen/FixMain.h" // for FixMain
	33	#include "CodeGen/FixNames.h" // for fixNames
	34	#include "CodeGen/Generate.h" // for generate
	35	#include "CodeTools/DeclStats.h" // for printDeclStats
	36	#include "CodeTools/TrackLoc.h" // for fillLocations
	37	#include "Common/CompilerError.h" // for CompilerError
[ff29f08]	38	#include "Common/GC.h" // for GC
[cbbd5b48]	39	#include "Common/Heap.h"
	40	#include "Common/PassVisitor.h"
[bf2438c]	41	#include "Common/SemanticError.h" // for SemanticError
	42	#include "Common/UnimplementedError.h" // for UnimplementedError
	43	#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]	44	#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]	45	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
	46	#include "ControlStruct/Mutate.h" // for mutate
	47	#include "GenPoly/Box.h" // for box
	48	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	49	#include "GenPoly/Lvalue.h" // for convertLvalue
	50	#include "GenPoly/Specialize.h" // for convertSpecializations
	51	#include "InitTweak/FixInit.h" // for fix
	52	#include "InitTweak/GenInit.h" // for genInit
	53	#include "MakeLibCfa.h" // for makeLibCfa
	54	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
	55	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	56	#include "Parser/TypedefTable.h" // for TypedefTable
	57	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
	58	#include "ResolvExpr/Resolver.h" // for resolve
	59	#include "SymTab/Validate.h" // for validate
	60	#include "SynTree/Declaration.h" // for Declaration
[68f9c43]	61	#include "SynTree/GcTracer.h" // for GC << TranslationUnit
[bf2438c]	62	#include "SynTree/Visitor.h" // for acceptAll
	63	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]	64	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	65
	66	using namespace std;
	67
[6edd210]	68	#define PASS(name, pass) \
[ecaeac6e]	69	if ( errorp ) { cerr << name << endl; } \
	70	HeapStats::newPass(name); \
[6edd210]	71	pass;
[81419b5]	72
[8b7ee09]	73	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	74	TypedefTable typedefTable;
[cbaee0d]	75	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	76
[926af74]	77	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	78	bool
	79	astp = false,
[de62360d]	80	bresolvep = false,
[fea7ca7]	81	bboxp = false,
[8905f56]	82	bcodegenp = false,
[ca1c11f]	83	ctorinitp = false,
[41a7137]	84	declstatsp = false,
[b87a5ed]	85	exprp = false,
	86	expraltp = false,
[53d3ab4b]	87	genericsp = false,
[b87a5ed]	88	libcfap = false,
[de62360d]	89	nopreludep = false,
[1ab4ce2]	90	noprotop = false,
[3fe34ae]	91	nomainp = false,
[de62360d]	92	parsep = false,
[b87a5ed]	93	resolvep = false, // used in AlternativeFinder
	94	symtabp = false,
[d3b7937]	95	treep = false,
[626dbc10]	96	tuplep = false,
[b87a5ed]	97	validp = false,
[de62360d]	98	errorp = false,
[35b1bf4]	99	codegenp = false,
[c850687]	100	prettycodegenp = false,
[6de43b6]	101	linemarks = false;
[b87a5ed]	102
[926af74]	103	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	104	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	105	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	106
[0afffee]	107	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	108	enum { Frames = 50 };
	109	void * array[Frames];
[0afffee]	110	int size = ::backtrace( array, Frames );
	111	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	112
	113	*index( messages[0], '(' ) = '\0'; // find executable name
	114	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	115
[b542bfb]	116	// skip last 2 stack frames after main
	117	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	118	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	119	for ( char p = messages[i]; p; ++p ) { // 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
	157	void sigSegvBusHandler( int sig_num ) {
	158	cerr << "CFA runtime error program cfa-cpp terminated with "
	159	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	160	<< "." << endl;
[b542bfb]	161	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	162	exit( EXIT_FAILURE );
	163	} // sigSegvBusHandler
[0da3e2c]	164
[b3c36f4]	165	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
	168	raise( SIGABRT ); // reraise SIGABRT
	169	} // sigAbortHandler
	170
	171
[cbaee0d]	172	int main( int argc, char * argv[] ) {
[3b8e52c]	173	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	174	ostream *output = & cout;
[926af74]	175	const char *filename = nullptr;
[e6955b1]	176	list< Declaration * > translationUnit;
	177
	178	signal( SIGSEGV, sigSegvBusHandler );
	179	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	180	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	181
[0da3e2c]	182	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	183	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	184
	185	try {
[81419b5]	186	// choose to read the program from a file or stdin
[3b8e52c]	187	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	188	input = fopen( argv[ optind ], "r" );
[3b8e52c]	189	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	190	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	191	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	192	// prelude filename comes in differently
	193	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	194	optind += 1;
[3b8e52c]	195	} else { // no input file name
[b87a5ed]	196	input = stdin;
[2a7e29b]	197	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	198	// a fake name along
[926af74]	199	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	200	} // if
	201
[159c62e]	202	// read in the builtins, extras, and the prelude
[de62360d]	203	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	204	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	205
	206	// Read to gcc builtins, if not generating the cfa library
[6ce3ae9]	207	FILE * gcc_builtins = fopen( libcfap \| treep ? "../prelude/gcc-builtins.cf" : CFA_LIBDIR "/gcc-builtins.cf", "r" );
	208	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	209	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	210
[159c62e]	211	// read the extra prelude in, if not generating the cfa library
[375a068]	212	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	213	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	214	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	215
[81419b5]	216	if ( ! libcfap ) {
[faf8857]	217	// read the prelude in, if not generating the cfa library
[375a068]	218	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	219	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	220	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	221
	222	// Read to cfa builtins, if not generating the cfa library
	223	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
	224	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	225	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	226	} // if
	227	} // if
[81419b5]	228
[926af74]	229	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	230
[b87a5ed]	231	if ( parsep ) {
[e6955b1]	232	parseTree->printList( cout );
[0da3e2c]	233	delete parseTree;
[b87a5ed]	234	return 0;
	235	} // if
	236
[0da3e2c]	237	buildList( parseTree, translationUnit );
	238	delete parseTree;
[cbaee0d]	239	parseTree = nullptr;
[68f9c43]	240	collect( translationUnit );
[b87a5ed]	241
	242	if ( astp ) {
[1ab4ce2]	243	dump( translationUnit );
[b87a5ed]	244	return 0;
	245	} // if
	246
[839ccbb]	247	// add the assignment statement after the initialization of a type parameter
[6edd210]	248	PASS( "validate", SymTab::validate( translationUnit, symtabp ) );
[68f9c43]	249	if ( symtabp ) return 0;
[bd06384]	250	collect( translationUnit );
[b87a5ed]	251
[81419b5]	252	if ( expraltp ) {
[bff09c8]	253	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	254	acceptAll( translationUnit, printer );
[b87a5ed]	255	return 0;
	256	} // if
	257
	258	if ( validp ) {
[1ab4ce2]	259	dump( translationUnit );
[b87a5ed]	260	return 0;
	261	} // if
	262
[6edd210]	263	PASS( "mutate", ControlStruct::mutate( translationUnit ) );
	264	PASS( "fixNames", CodeGen::fixNames( translationUnit ) );
	265	PASS( "genInit", InitTweak::genInit( translationUnit ) );
	266	PASS( "expandMemberTuples" , Tuples::expandMemberTuples( translationUnit ) );
[68f9c43]	267	collect( translationUnit );
[81419b5]	268	if ( libcfap ) {
	269	// generate the bodies of cfa library functions
	270	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	271	} // if
	272
[fa2de95]	273	if ( declstatsp ) {
	274	CodeTools::printDeclStats( translationUnit );
	275	return 0;
	276	}
	277
[de62360d]	278	if ( bresolvep ) {
[1ab4ce2]	279	dump( translationUnit );
[de62360d]	280	return 0;
	281	} // if
	282
[76b378d]	283	CodeTools::fillLocations( translationUnit );
	284
[6edd210]	285	PASS( "resolve", ResolvExpr::resolve( translationUnit ) );
[68f9c43]	286	collect( translationUnit );
[81419b5]	287	if ( exprp ) {
[1ab4ce2]	288	dump( translationUnit );
[ca1c11f]	289	return 0;
[926af74]	290	} // if
[81419b5]	291
[71f4e4f]	292	// fix ObjectDecl - replaces ConstructorInit nodes
[6edd210]	293	PASS( "fixInit", InitTweak::fix( translationUnit, filename, libcfap \|\| treep ) );
[68f9c43]	294	collect( translationUnit );
[ca1c11f]	295	if ( ctorinitp ) {
	296	dump ( translationUnit );
	297	return 0;
[926af74]	298	} // if
[71f4e4f]	299
[6edd210]	300	PASS( "expandUniqueExpr", 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
[141b786]	301	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	302
[6edd210]	303	PASS( "translateEHM" , ControlStruct::translateEHM( translationUnit ) );
[307a732]	304
[6edd210]	305	PASS( "generateWaitfor" , Concurrency::generateWaitFor( translationUnit ) );
[9f5ecf5]	306
[6edd210]	307	PASS( "convertSpecializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[626dbc10]	308
[6edd210]	309	PASS( "expandTuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[68f9c43]	310	collect( translationUnit );
[626dbc10]	311	if ( tuplep ) {
	312	dump( translationUnit );
	313	return 0;
	314	}
[141b786]	315
[6edd210]	316	PASS( "virtual expandCasts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	317
[6edd210]	318	PASS( "instantiateGenerics", GenPoly::instantiateGeneric( translationUnit ) );
[68f9c43]	319	collect( translationUnit );
[53d3ab4b]	320	if ( genericsp ) {
	321	dump( translationUnit );
	322	return 0;
	323	}
[6edd210]	324	PASS( "convertLvalue", GenPoly::convertLvalue( translationUnit ) );
[68f9c43]	325	collect( translationUnit );
[fea7ca7]	326	if ( bboxp ) {
	327	dump( translationUnit );
	328	return 0;
[926af74]	329	} // if
[6edd210]	330	PASS( "box", GenPoly::box( translationUnit ) );
[68f9c43]	331	collect( translationUnit );
[8905f56]	332	if ( bcodegenp ) {
	333	dump( translationUnit );
	334	return 0;
	335	}
	336
[13de47bc]	337	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	338	output = new ofstream( argv[ optind ] );
	339	} // if
[0270824]	340
[7b15d7a]	341	CodeTools::fillLocations( translationUnit );
[6edd210]	342	PASS( "codegen", CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp, true, linemarks ) );
[0270824]	343
[13de47bc]	344	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[e6955b1]	345	if ( output != &cout ) {
[b87a5ed]	346	delete output;
	347	} // if
[a16764a6]	348	} catch ( SemanticErrorException &e ) {
[b87a5ed]	349	if ( errorp ) {
[e6955b1]	350	cerr << "---AST at error:---" << endl;
	351	dump( translationUnit, cerr );
	352	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	353	} // if
[d55d7a6]	354	e.print();
[e6955b1]	355	if ( output != &cout ) {
[b87a5ed]	356	delete output;
	357	} // if
	358	return 1;
	359	} catch ( UnimplementedError &e ) {
[e6955b1]	360	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	361	if ( output != &cout ) {
[b87a5ed]	362	delete output;
	363	} // if
	364	return 1;
	365	} catch ( CompilerError &e ) {
[e6955b1]	366	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	367	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	368	if ( output != &cout ) {
[b87a5ed]	369	delete output;
	370	} // if
	371	return 1;
[4990812]	372	} catch(...) {
	373	std::exception_ptr eptr = std::current_exception();
	374	try {
	375	if (eptr) {
	376	std::rethrow_exception(eptr);
	377	}
	378	else {
	379	std::cerr << "Exception Uncaught and Unkown" << std::endl;
	380	}
	381	} catch(const std::exception& e) {
	382	std::cerr << "Unaught Exception \"" << e.what() << "\"\n";
	383	}
	384	return 1;
	385	}// try
[b87a5ed]	386
[6d611fb]	387	if(!libcfap && !treep) HeapStats::printStats();
[b87a5ed]	388	return 0;
[d9a0e76]	389	} // main
[51b7345]	390
[cbaee0d]	391	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[6de43b6]	392	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Linemarks, Nolinemarks, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	393
	394	static struct option long_opts[] = {
	395	{ "ast", no_argument, 0, Ast },
	396	{ "before-box", no_argument, 0, Bbox },
	397	{ "before-resolver", no_argument, 0, Bresolver },
	398	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	399	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	400	{ "expr", no_argument, 0, Expr },
	401	{ "expralt", no_argument, 0, ExprAlt },
	402	{ "grammar", no_argument, 0, Grammar },
	403	{ "libcfa", no_argument, 0, LibCFA },
[6de43b6]	404	{ "line-marks", no_argument, 0, Linemarks },
	405	{ "no-line-marks", no_argument, 0, Nolinemarks },
[0da3e2c]	406	{ "no-preamble", no_argument, 0, Nopreamble },
	407	{ "parse", no_argument, 0, Parse },
	408	{ "no-prototypes", no_argument, 0, Prototypes },
	409	{ "resolver", no_argument, 0, Resolver },
	410	{ "symbol", no_argument, 0, Symbol },
	411	{ "tree", no_argument, 0, Tree },
[626dbc10]	412	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	413	{ "validate", no_argument, 0, Validate },
	414	{ 0, 0, 0, 0 }
	415	}; // long_opts
	416	int long_index;
	417
	418	opterr = 0; // (global) prevent getopt from printing error messages
	419
[c5e5109]	420	bool Wsuppress = false, Werror = false;
[0da3e2c]	421	int c;
[44bca7f]	422	while ( (c = getopt_long( argc, argv, "abBcCdefgGlLmnNpqrstTvwW:yzZD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	423	switch ( c ) {
	424	case Ast:
	425	case 'a': // dump AST
	426	astp = true;
	427	break;
	428	case Bresolver:
	429	case 'b': // print before resolver steps
	430	bresolvep = true;
	431	break;
[626dbc10]	432	case 'B': // print before box steps
[0da3e2c]	433	bboxp = true;
	434	break;
	435	case CtorInitFix:
[e39241b]	436	case 'c': // print after constructors and destructors are replaced
[0da3e2c]	437	ctorinitp = true;
	438	break;
[8905f56]	439	case 'C': // print before code generation
	440	bcodegenp = true;
	441	break;
[41a7137]	442	case DeclStats:
	443	case 'd':
	444	declstatsp = true;
	445	break;
[0da3e2c]	446	case Expr:
	447	case 'e': // dump AST after expression analysis
	448	exprp = true;
	449	break;
	450	case ExprAlt:
	451	case 'f': // print alternatives for expressions
	452	expraltp = true;
	453	break;
	454	case Grammar:
	455	case 'g': // bison debugging info (grammar rules)
[926af74]	456	yydebug = true;
[0da3e2c]	457	break;
[44bca7f]	458	case 'G': // dump AST after instantiate generics
[53d3ab4b]	459	genericsp = true;
	460	break;
[0da3e2c]	461	case LibCFA:
	462	case 'l': // generate libcfa.c
	463	libcfap = true;
	464	break;
[6de43b6]	465	case Linemarks:
	466	case 'L': // print lines marks
	467	linemarks = true;
[c850687]	468	break;
[0da3e2c]	469	case Nopreamble:
	470	case 'n': // do not read preamble
	471	nopreludep = true;
	472	break;
[6de43b6]	473	case Nolinemarks:
	474	case 'N': // suppress line marks
	475	linemarks = false;
[c59bde6]	476	break;
[0da3e2c]	477	case Prototypes:
	478	case 'p': // generate prototypes for preamble functions
	479	noprotop = true;
	480	break;
[3fe34ae]	481	case 'm': // don't replace the main
	482	nomainp = true;
	483	break;
[0da3e2c]	484	case Parse:
	485	case 'q': // dump parse tree
	486	parsep = true;
	487	break;
	488	case Resolver:
	489	case 'r': // print resolver steps
	490	resolvep = true;
	491	break;
	492	case Symbol:
	493	case 's': // print symbol table events
	494	symtabp = true;
	495	break;
	496	case Tree:
	497	case 't': // build in tree
	498	treep = true;
	499	break;
[626dbc10]	500	case TupleExpansion:
	501	case 'T': // print after tuple expansion
	502	tuplep = true;
	503	break;
[0da3e2c]	504	case 'v': // dump AST after decl validation pass
	505	validp = true;
	506	break;
[44bca7f]	507	case 'w':
[c5e5109]	508	Wsuppress = true;
[44bca7f]	509	break;
	510	case 'W':
	511	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	512	SemanticWarning_EnableAll();
[44bca7f]	513	} else if ( strcmp( optarg, "error" ) == 0 ) {
	514	Werror = true;
	515	} else {
	516	char * warning = optarg;
	517	Severity s;
	518	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	519	warning += 3;
	520	s = Severity::Suppress;
	521	} else {
	522	s = Severity::Warn;
	523	} // if
[68e9ace]	524	SemanticWarning_Set( warning, s );
[44bca7f]	525	} // if
	526	break;
[e39241b]	527	case 'y': // dump AST on error
[0da3e2c]	528	errorp = true;
	529	break;
[e39241b]	530	case 'z': // dump as codegen rather than AST
[0da3e2c]	531	codegenp = true;
[e39241b]	532	break;
	533	case 'Z': // prettyprint during codegen (i.e. print unmangled names, etc.)
[35b1bf4]	534	prettycodegenp = true;
[0da3e2c]	535	break;
	536	case 'D': // ignore -Dxxx
	537	break;
	538	case 'F': // source file-name without suffix
	539	filename = optarg;
	540	break;
	541	case '?':
[ae47a23]	542	if ( optopt ) { // short option ?
	543	assertf( false, "Unknown option: -%c\n", (char)optopt );
	544	} else {
	545	assertf( false, "Unknown option: %s\n", argv[optind - 1] );
	546	} // if
[b6d7f44]	547	#if defined(__GNUC__) && __GNUC__ >= 7
[af98d27]	548	__attribute__((fallthrough));
	549	#endif
[0da3e2c]	550	default:
	551	abort();
	552	} // switch
	553	} // while
[44bca7f]	554
	555	if ( Werror ) {
[68e9ace]	556	SemanticWarning_WarningAsError();
[44bca7f]	557	} // if
[c5e5109]	558	if ( Wsuppress ) {
	559	SemanticWarning_SuppressAll();
	560	} // if
[44bca7f]	561	// for ( const auto w : WarningFormats ) {
	562	// cout << w.name << ' ' << (int)w.severity << endl;
	563	// } // for
[0da3e2c]	564	} // parse_cmdline
	565
[8b7ee09]	566	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	567	extern int yyparse( void );
[cbaee0d]	568	extern FILE * yyin;
[0da3e2c]	569	extern int yylineno;
	570
[8b7ee09]	571	::linkage = linkage; // set globals
[0da3e2c]	572	yyin = input;
	573	yylineno = 1;
	574	typedefTable.enterScope();
	575	int parseStatus = yyparse();
[81419b5]	576
	577	fclose( input );
[0da3e2c]	578	if ( shouldExit \|\| parseStatus != 0 ) {
	579	exit( parseStatus );
[81419b5]	580	} // if
[0da3e2c]	581	} // parse
[81419b5]	582
[1ab4ce2]	583	static bool notPrelude( Declaration * decl ) {
	584	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	585	} // notPrelude
[1ab4ce2]	586
[e6955b1]	587	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	588	list< Declaration * > decls;
[926af74]	589
[1ab4ce2]	590	if ( noprotop ) {
[e6955b1]	591	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	592	} else {
	593	decls = translationUnit;
[926af74]	594	} // if
[1ab4ce2]	595
[e39241b]	596	// depending on commandline options, either generate code or dump the AST
	597	if ( codegenp ) {
	598	CodeGen::generate( decls, out, ! noprotop, prettycodegenp );
	599	} else {
	600	printAll( decls, out );
	601	}
[0da3e2c]	602	} // dump
[1ab4ce2]	603
[51b7345]	604	// Local Variables: //
[b87a5ed]	605	// tab-width: 4 //
	606	// mode: c++ //
	607	// compile-command: "make install" //
[51b7345]	608	// End: //

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