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source: src/main.cc @ af1ed1ad

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumwith_gc

Last change on this file since af1ed1ad was a16764a6, checked in by Thierry Delisle <tdelisle@…>, 7 years ago
Changed warning system to prepare for toggling warnings
Property mode set to `100644`
File size: 18.6 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
	13	// Last Modified On : Tue Oct 31 12:22:40 2017
	14	// Update Count : 445
[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
[bff09c8]	37	#include "Common/PassVisitor.h"
[bf2438c]	38	#include "Common/CompilerError.h" // for CompilerError
	39	#include "Common/SemanticError.h" // for SemanticError
	40	#include "Common/UnimplementedError.h" // for UnimplementedError
	41	#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]	42	#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]	43	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
	44	#include "ControlStruct/Mutate.h" // for mutate
	45	#include "GenPoly/Box.h" // for box
	46	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	47	#include "GenPoly/Lvalue.h" // for convertLvalue
	48	#include "GenPoly/Specialize.h" // for convertSpecializations
	49	#include "InitTweak/FixInit.h" // for fix
	50	#include "InitTweak/GenInit.h" // for genInit
	51	#include "MakeLibCfa.h" // for makeLibCfa
	52	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
	53	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	54	#include "Parser/TypedefTable.h" // for TypedefTable
	55	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
	56	#include "ResolvExpr/Resolver.h" // for resolve
	57	#include "SymTab/Validate.h" // for validate
	58	#include "SynTree/Declaration.h" // for Declaration
	59	#include "SynTree/Visitor.h" // for acceptAll
	60	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]	61	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	62
	63	using namespace std;
	64
[e6955b1]	65	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	66
[0da3e2c]	67
[8b7ee09]	68	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	69	TypedefTable typedefTable;
[cbaee0d]	70	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	71
[926af74]	72	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	73	bool
	74	astp = false,
[de62360d]	75	bresolvep = false,
[fea7ca7]	76	bboxp = false,
[8905f56]	77	bcodegenp = false,
[ca1c11f]	78	ctorinitp = false,
[41a7137]	79	declstatsp = false,
[b87a5ed]	80	exprp = false,
	81	expraltp = false,
[53d3ab4b]	82	genericsp = false,
[b87a5ed]	83	libcfap = false,
[de62360d]	84	nopreludep = false,
[1ab4ce2]	85	noprotop = false,
[3fe34ae]	86	nomainp = false,
[de62360d]	87	parsep = false,
[b87a5ed]	88	resolvep = false, // used in AlternativeFinder
	89	symtabp = false,
[d3b7937]	90	treep = false,
[626dbc10]	91	tuplep = false,
[b87a5ed]	92	validp = false,
[de62360d]	93	errorp = false,
[35b1bf4]	94	codegenp = false,
[c850687]	95	prettycodegenp = false,
[6de43b6]	96	linemarks = false;
[b87a5ed]	97
[926af74]	98	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	99	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	100	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	101
[0afffee]	102	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	103	enum { Frames = 50 };
	104	void * array[Frames];
[0afffee]	105	int size = ::backtrace( array, Frames );
	106	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	107
	108	*index( messages[0], '(' ) = '\0'; // find executable name
	109	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	110
[b542bfb]	111	// skip last 2 stack frames after main
	112	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	113	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	114	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	115	if ( *p == '(' ) {
[46f6134]	116	mangled_name = p;
[0afffee]	117	} else if ( *p == '+' ) {
[e6955b1]	118	offset_begin = p;
[0afffee]	119	} else if ( *p == ')' ) {
[e6955b1]	120	offset_end = p;
	121	break;
	122	} // if
	123	} // for
	124
	125	// if line contains symbol, attempt to demangle
[b542bfb]	126	int frameNo = i - start;
[e6955b1]	127	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	128	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	129	*offset_begin++ = '\0';
	130	*offset_end++ = '\0';
	131
[0afffee]	132	int status;
[e6955b1]	133	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	134	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	135	if ( status == 0 ) { // demangling successful ?
[b542bfb]	136	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	137	<< real_name << "+" << offset_begin << offset_end << endl;
	138	} else { // otherwise, output mangled name
[b542bfb]	139	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	140	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	141	} // if
[0afffee]	142
[e6955b1]	143	free( real_name );
	144	} else { // otherwise, print the whole line
[b542bfb]	145	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	146	} // if
	147	} // for
[b542bfb]	148
[e6955b1]	149	free( messages );
[b542bfb]	150	} // backtrace
	151
	152	void sigSegvBusHandler( int sig_num ) {
	153	cerr << "CFA runtime error program cfa-cpp terminated with "
	154	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	155	<< "." << endl;
[b542bfb]	156	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	157	exit( EXIT_FAILURE );
	158	} // sigSegvBusHandler
[0da3e2c]	159
[b3c36f4]	160	void sigAbortHandler( __attribute__((unused)) int sig_num ) {
[b542bfb]	161	backtrace( 6 ); // skip first 6 stack frames
	162	signal( SIGABRT, SIG_DFL); // reset default signal handler
	163	raise( SIGABRT ); // reraise SIGABRT
	164	} // sigAbortHandler
	165
	166
[cbaee0d]	167	int main( int argc, char * argv[] ) {
[3b8e52c]	168	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	169	ostream *output = & cout;
[926af74]	170	const char *filename = nullptr;
[e6955b1]	171	list< Declaration * > translationUnit;
	172
	173	signal( SIGSEGV, sigSegvBusHandler );
	174	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	175	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	176
[0da3e2c]	177	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	178	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	179
	180	try {
[81419b5]	181	// choose to read the program from a file or stdin
[3b8e52c]	182	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	183	input = fopen( argv[ optind ], "r" );
[3b8e52c]	184	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162e]	185	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	186	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	187	// prelude filename comes in differently
	188	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	189	optind += 1;
[3b8e52c]	190	} else { // no input file name
[b87a5ed]	191	input = stdin;
[2a7e29b]	192	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	193	// a fake name along
[926af74]	194	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	195	} // if
	196
[159c62e]	197	// read in the builtins, extras, and the prelude
[de62360d]	198	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	199	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	200
	201	// Read to gcc builtins, if not generating the cfa library
[6ce3ae9]	202	FILE * gcc_builtins = fopen( libcfap \| treep ? "../prelude/gcc-builtins.cf" : CFA_LIBDIR "/gcc-builtins.cf", "r" );
	203	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	204	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	205
[159c62e]	206	// read the extra prelude in, if not generating the cfa library
[375a068]	207	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	208	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	209	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	210
[81419b5]	211	if ( ! libcfap ) {
[faf8857]	212	// read the prelude in, if not generating the cfa library
[375a068]	213	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	214	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	215	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	216
	217	// Read to cfa builtins, if not generating the cfa library
	218	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
	219	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	220	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	221	} // if
	222	} // if
[81419b5]	223
[926af74]	224	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	225
[b87a5ed]	226	if ( parsep ) {
[e6955b1]	227	parseTree->printList( cout );
[0da3e2c]	228	delete parseTree;
[b87a5ed]	229	return 0;
	230	} // if
	231
[0da3e2c]	232	buildList( parseTree, translationUnit );
	233	delete parseTree;
[cbaee0d]	234	parseTree = nullptr;
[b87a5ed]	235
	236	if ( astp ) {
[1ab4ce2]	237	dump( translationUnit );
[b87a5ed]	238	return 0;
	239	} // if
	240
[839ccbb]	241	// add the assignment statement after the initialization of a type parameter
[81419b5]	242	OPTPRINT( "validate" )
	243	SymTab::validate( translationUnit, symtabp );
	244	if ( symtabp ) {
[46f6134]	245	deleteAll( translationUnit );
[b87a5ed]	246	return 0;
	247	} // if
	248
[81419b5]	249	if ( expraltp ) {
[bff09c8]	250	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	251	acceptAll( translationUnit, printer );
[b87a5ed]	252	return 0;
	253	} // if
	254
	255	if ( validp ) {
[1ab4ce2]	256	dump( translationUnit );
[b87a5ed]	257	return 0;
	258	} // if
	259
[81419b5]	260	OPTPRINT( "mutate" )
	261	ControlStruct::mutate( translationUnit );
[71f4e4f]	262	OPTPRINT( "fixNames" )
[81419b5]	263	CodeGen::fixNames( translationUnit );
[ef42b143]	264	OPTPRINT( "genInit" )
[a0fdbd5]	265	InitTweak::genInit( translationUnit );
[bf32bb8]	266	OPTPRINT( "expandMemberTuples" );
	267	Tuples::expandMemberTuples( 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	deleteAll( translationUnit );
	276	return 0;
	277	}
	278
[de62360d]	279	if ( bresolvep ) {
[1ab4ce2]	280	dump( translationUnit );
[de62360d]	281	return 0;
	282	} // if
	283
[76b378d]	284	CodeTools::fillLocations( translationUnit );
	285
[81419b5]	286	OPTPRINT( "resolve" )
[b87a5ed]	287	ResolvExpr::resolve( translationUnit );
[81419b5]	288	if ( exprp ) {
[1ab4ce2]	289	dump( translationUnit );
[ca1c11f]	290	return 0;
[926af74]	291	} // if
[81419b5]	292
[71f4e4f]	293	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	294	OPTPRINT( "fixInit" )
	295	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	296	if ( ctorinitp ) {
	297	dump ( translationUnit );
	298	return 0;
[926af74]	299	} // if
[71f4e4f]	300
[141b786]	301	OPTPRINT( "expandUniqueExpr" ); // xxx - is this the right place for this? want to expand ASAP so that subsequent 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
	302	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	303
[307a732]	304	OPTPRINT( "translateEHM" );
	305	ControlStruct::translateEHM( translationUnit );
	306
[9f5ecf5]	307	OPTPRINT( "generateWaitfor" );
	308	Concurrency::generateWaitFor( translationUnit );
	309
[626dbc10]	310	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	311	GenPoly::convertSpecializations( translationUnit );
	312
[d9fa60a]	313	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	314	Tuples::expandTuples( translationUnit );
[626dbc10]	315	if ( tuplep ) {
	316	dump( translationUnit );
	317	return 0;
	318	}
[141b786]	319
[a5f0529]	320	OPTPRINT( "virtual expandCasts" ) // Must come after translateEHM
	321	Virtual::expandCasts( translationUnit );
	322
[ea5daeb]	323	OPTPRINT("instantiateGenerics")
	324	GenPoly::instantiateGeneric( translationUnit );
[53d3ab4b]	325	if ( genericsp ) {
	326	dump( translationUnit );
	327	return 0;
	328	}
[81419b5]	329	OPTPRINT( "convertLvalue" )
[b87a5ed]	330	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	331
[53d3ab4b]	332
[fea7ca7]	333	if ( bboxp ) {
	334	dump( translationUnit );
	335	return 0;
[926af74]	336	} // if
[81419b5]	337	OPTPRINT( "box" )
[b87a5ed]	338	GenPoly::box( translationUnit );
[81419b5]	339
[8905f56]	340	if ( bcodegenp ) {
	341	dump( translationUnit );
	342	return 0;
	343	}
	344
[13de47bc]	345	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	346	output = new ofstream( argv[ optind ] );
	347	} // if
[0270824]	348
[7b15d7a]	349	CodeTools::fillLocations( translationUnit );
[53d3ab4b]	350	OPTPRINT( "codegen" )
[6de43b6]	351	CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp, true, linemarks );
[0270824]	352
[13de47bc]	353	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[53d3ab4b]	354	OPTPRINT( "end" )
[0270824]	355
[e6955b1]	356	if ( output != &cout ) {
[b87a5ed]	357	delete output;
	358	} // if
[a16764a6]	359	} catch ( SemanticErrorException &e ) {
[b87a5ed]	360	if ( errorp ) {
[e6955b1]	361	cerr << "---AST at error:---" << endl;
	362	dump( translationUnit, cerr );
	363	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	364	} // if
[d55d7a6]	365	e.print();
[e6955b1]	366	if ( output != &cout ) {
[b87a5ed]	367	delete output;
	368	} // if
	369	return 1;
	370	} catch ( UnimplementedError &e ) {
[e6955b1]	371	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	372	if ( output != &cout ) {
[b87a5ed]	373	delete output;
	374	} // if
	375	return 1;
	376	} catch ( CompilerError &e ) {
[e6955b1]	377	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	378	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	379	if ( output != &cout ) {
[b87a5ed]	380	delete output;
	381	} // if
	382	return 1;
	383	} // try
	384
[39786813]	385	deleteAll( translationUnit );
[b87a5ed]	386	return 0;
[d9a0e76]	387	} // main
[51b7345]	388
[cbaee0d]	389	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[6de43b6]	390	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Linemarks, Nolinemarks, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	391
	392	static struct option long_opts[] = {
	393	{ "ast", no_argument, 0, Ast },
	394	{ "before-box", no_argument, 0, Bbox },
	395	{ "before-resolver", no_argument, 0, Bresolver },
	396	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	397	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	398	{ "expr", no_argument, 0, Expr },
	399	{ "expralt", no_argument, 0, ExprAlt },
	400	{ "grammar", no_argument, 0, Grammar },
	401	{ "libcfa", no_argument, 0, LibCFA },
[6de43b6]	402	{ "line-marks", no_argument, 0, Linemarks },
	403	{ "no-line-marks", no_argument, 0, Nolinemarks },
[0da3e2c]	404	{ "no-preamble", no_argument, 0, Nopreamble },
	405	{ "parse", no_argument, 0, Parse },
	406	{ "no-prototypes", no_argument, 0, Prototypes },
	407	{ "resolver", no_argument, 0, Resolver },
	408	{ "symbol", no_argument, 0, Symbol },
	409	{ "tree", no_argument, 0, Tree },
[626dbc10]	410	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	411	{ "validate", no_argument, 0, Validate },
	412	{ 0, 0, 0, 0 }
	413	}; // long_opts
	414	int long_index;
	415
	416	opterr = 0; // (global) prevent getopt from printing error messages
	417
	418	int c;
[53d3ab4b]	419	while ( (c = getopt_long( argc, argv, "abBcCdefgGlLmnNpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	420	switch ( c ) {
	421	case Ast:
	422	case 'a': // dump AST
	423	astp = true;
	424	break;
	425	case Bresolver:
	426	case 'b': // print before resolver steps
	427	bresolvep = true;
	428	break;
[626dbc10]	429	case 'B': // print before box steps
[0da3e2c]	430	bboxp = true;
	431	break;
	432	case CtorInitFix:
[e39241b]	433	case 'c': // print after constructors and destructors are replaced
[0da3e2c]	434	ctorinitp = true;
	435	break;
[8905f56]	436	case 'C': // print before code generation
	437	bcodegenp = true;
	438	break;
[41a7137]	439	case DeclStats:
	440	case 'd':
	441	declstatsp = true;
	442	break;
[0da3e2c]	443	case Expr:
	444	case 'e': // dump AST after expression analysis
	445	exprp = true;
	446	break;
	447	case ExprAlt:
	448	case 'f': // print alternatives for expressions
	449	expraltp = true;
	450	break;
	451	case Grammar:
	452	case 'g': // bison debugging info (grammar rules)
[926af74]	453	yydebug = true;
[0da3e2c]	454	break;
[53d3ab4b]	455	case 'G': // dump AST after instantiate generics
	456	genericsp = true;
	457	break;
[0da3e2c]	458	case LibCFA:
	459	case 'l': // generate libcfa.c
	460	libcfap = true;
	461	break;
[6de43b6]	462	case Linemarks:
	463	case 'L': // print lines marks
	464	linemarks = true;
[c850687]	465	break;
[0da3e2c]	466	case Nopreamble:
	467	case 'n': // do not read preamble
	468	nopreludep = true;
	469	break;
[6de43b6]	470	case Nolinemarks:
	471	case 'N': // suppress line marks
	472	linemarks = false;
[c59bde6]	473	break;
[0da3e2c]	474	case Prototypes:
	475	case 'p': // generate prototypes for preamble functions
	476	noprotop = true;
	477	break;
[3fe34ae]	478	case 'm': // don't replace the main
	479	nomainp = true;
	480	break;
[0da3e2c]	481	case Parse:
	482	case 'q': // dump parse tree
	483	parsep = true;
	484	break;
	485	case Resolver:
	486	case 'r': // print resolver steps
	487	resolvep = true;
	488	break;
	489	case Symbol:
	490	case 's': // print symbol table events
	491	symtabp = true;
	492	break;
	493	case Tree:
	494	case 't': // build in tree
	495	treep = true;
	496	break;
[626dbc10]	497	case TupleExpansion:
	498	case 'T': // print after tuple expansion
	499	tuplep = true;
	500	break;
[0da3e2c]	501	case 'v': // dump AST after decl validation pass
	502	validp = true;
	503	break;
[e39241b]	504	case 'y': // dump AST on error
[0da3e2c]	505	errorp = true;
	506	break;
[e39241b]	507	case 'z': // dump as codegen rather than AST
[0da3e2c]	508	codegenp = true;
[e39241b]	509	break;
	510	case 'Z': // prettyprint during codegen (i.e. print unmangled names, etc.)
[35b1bf4]	511	prettycodegenp = true;
[0da3e2c]	512	break;
	513	case 'D': // ignore -Dxxx
	514	break;
	515	case 'F': // source file-name without suffix
	516	filename = optarg;
	517	break;
	518	case '?':
[ae47a23]	519	if ( optopt ) { // short option ?
	520	assertf( false, "Unknown option: -%c\n", (char)optopt );
	521	} else {
	522	assertf( false, "Unknown option: %s\n", argv[optind - 1] );
	523	} // if
[af98d27]	524	#if __GNUC__ < 7
	525	#else
	526	__attribute__((fallthrough));
	527	#endif
[0da3e2c]	528	default:
	529	abort();
	530	} // switch
	531	} // while
	532	} // parse_cmdline
	533
[8b7ee09]	534	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	535	extern int yyparse( void );
[cbaee0d]	536	extern FILE * yyin;
[0da3e2c]	537	extern int yylineno;
	538
[8b7ee09]	539	::linkage = linkage; // set globals
[0da3e2c]	540	yyin = input;
	541	yylineno = 1;
	542	typedefTable.enterScope();
	543	int parseStatus = yyparse();
[81419b5]	544
	545	fclose( input );
[0da3e2c]	546	if ( shouldExit \|\| parseStatus != 0 ) {
	547	exit( parseStatus );
[81419b5]	548	} // if
[0da3e2c]	549	} // parse
[81419b5]	550
[1ab4ce2]	551	static bool notPrelude( Declaration * decl ) {
	552	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	553	} // notPrelude
[1ab4ce2]	554
[e6955b1]	555	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	556	list< Declaration * > decls;
[926af74]	557
[1ab4ce2]	558	if ( noprotop ) {
[e6955b1]	559	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	560	} else {
	561	decls = translationUnit;
[926af74]	562	} // if
[1ab4ce2]	563
[e39241b]	564	// depending on commandline options, either generate code or dump the AST
	565	if ( codegenp ) {
	566	CodeGen::generate( decls, out, ! noprotop, prettycodegenp );
	567	} else {
	568	printAll( decls, out );
	569	}
[7f5566b]	570	deleteAll( translationUnit );
[0da3e2c]	571	} // dump
[1ab4ce2]	572
[51b7345]	573	// Local Variables: //
[b87a5ed]	574	// tab-width: 4 //
	575	// mode: c++ //
	576	// compile-command: "make install" //
[51b7345]	577	// End: //

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