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source: src/main.cc @ 396b830

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

Last change on this file since 396b830 was 3f3bfe5a, checked in by Andrew Beach <ajbeach@…>, 5 years ago
Merge from master to new-ast. Removing old lvalue support.
Property mode set to `100644`
File size: 23.2 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
[ef22ad6]	12	// Last Modified On : Fri Aug 23 06:50:08 2019
	13	// Update Count : 607
[b87a5ed]	14	//
	15
[bf2438c]	16	#include <cxxabi.h> // for __cxa_demangle
	17	#include <execinfo.h> // for backtrace, backtrace_symbols
	18	#include <getopt.h> // for no_argument, optind, geto...
[08fc48f]	19	#include <cassert> // for assertf
[bf2438c]	20	#include <cstdio> // for fopen, FILE, fclose, stdin
	21	#include <cstdlib> // for exit, free, abort, EXIT_F...
[dee1f89]	22	#include <csignal> // for signal, SIGABRT, SIGSEGV
[bf2438c]	23	#include <cstring> // for index
[be9288a]	24	#include <fstream> // for ofstream
[bf2438c]	25	#include <iostream> // for operator<<, basic_ostream
[62ce290]	26	#include <iomanip>
[bf2438c]	27	#include <iterator> // for back_inserter
	28	#include <list> // for list
[08fc48f]	29	#include <string> // for char_traits, operator<<
[e6955b1]	30
[9ea38de]	31	#include "AST/Convert.hpp"
[7f38b67a]	32	#include "CompilationState.h"
[bf2438c]	33	#include "../config.h" // for CFA_LIBDIR
	34	#include "CodeGen/FixMain.h" // for FixMain
	35	#include "CodeGen/FixNames.h" // for fixNames
	36	#include "CodeGen/Generate.h" // for generate
	37	#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b]	38	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]	39	#include "CodeTools/TrackLoc.h" // for fillLocations
	40	#include "Common/CompilerError.h" // for CompilerError
[7abee38]	41	#include "Common/Stats.h"
[cbbd5b48]	42	#include "Common/PassVisitor.h"
[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
[4615ac8]	67
[51b7345]	68	using namespace std;
	69
[3e96559]	70	static void NewPass( const char * const name ) {
	71	Stats::Heap::newPass( name );
[1cb7fab2]	72	using namespace Stats::Counters;
[b8665e3]	73	{
[3e96559]	74	static auto group = build<CounterGroup>( "Pass Visitor" );
	75	auto pass = build<CounterGroup>( name, group );
[b8665e3]	76	pass_visitor_stats.depth = 0;
[3e96559]	77	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	78	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	79	}
	80	{
[3e96559]	81	static auto group = build<CounterGroup>( "Syntax Node" );
	82	auto pass = build<CounterGroup>( name, group );
	83	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	84	}
[675716e]	85	}
	86
[3e96559]	87	#define PASS( name, pass ) \
[ecaeac6e]	88	if ( errorp ) { cerr << name << endl; } \
[675716e]	89	NewPass(name); \
[4f97937]	90	Stats::Time::StartBlock(name); \
	91	pass; \
	92	Stats::Time::StopBlock();
[0da3e2c]	93
[8b7ee09]	94	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	95	TypedefTable typedefTable;
[cbaee0d]	96	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	97
[ef22ad6]	98	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	99
[3e96559]	100	static std::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
[e6955b1]	107	enum { Frames = 50 };
	108	void * array[Frames];
[0afffee]	109	int size = ::backtrace( array, Frames );
	110	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	111
	112	*index( messages[0], '(' ) = '\0'; // find executable name
	113	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	114
[b542bfb]	115	// skip last 2 stack frames after main
	116	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	117	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	118	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	119	if ( *p == '(' ) {
[46f6134]	120	mangled_name = p;
[0afffee]	121	} else if ( *p == '+' ) {
[e6955b1]	122	offset_begin = p;
[0afffee]	123	} else if ( *p == ')' ) {
[e6955b1]	124	offset_end = p;
	125	break;
	126	} // if
	127	} // for
	128
	129	// if line contains symbol, attempt to demangle
[b542bfb]	130	int frameNo = i - start;
[e6955b1]	131	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	132	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	133	*offset_begin++ = '\0';
	134	*offset_end++ = '\0';
	135
[0afffee]	136	int status;
[e6955b1]	137	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	138	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	139	if ( status == 0 ) { // demangling successful ?
[b542bfb]	140	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	141	<< real_name << "+" << offset_begin << offset_end << endl;
	142	} else { // otherwise, output mangled name
[b542bfb]	143	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	144	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	145	} // if
[0afffee]	146
[e6955b1]	147	free( real_name );
	148	} else { // otherwise, print the whole line
[b542bfb]	149	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	150	} // if
	151	} // for
[b542bfb]	152
[e6955b1]	153	free( messages );
[b542bfb]	154	} // backtrace
	155
[3e96559]	156	static void sigSegvBusHandler( int sig_num ) {
[b542bfb]	157	cerr << "CFA runtime error program cfa-cpp terminated with "
	158	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	159	<< "." << endl;
[b542bfb]	160	backtrace( 2 ); // skip first 2 stack frames
[af84a35]	161	//_exit( EXIT_FAILURE );
[3e96559]	162	abort(); // cause core dump for debugging
[e6955b1]	163	} // sigSegvBusHandler
[0da3e2c]	164
[3e96559]	165	static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
[b542bfb]	166	backtrace( 6 ); // skip first 6 stack frames
	167	signal( SIGABRT, SIG_DFL); // reset default signal handler
[9be45a2]	168	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	169	} // sigAbortHandler
	170
[cbaee0d]	171	int main( int argc, char * argv[] ) {
[3b8e52c]	172	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	173	ostream * output = & cout;
[e6955b1]	174	list< Declaration * > translationUnit;
	175
	176	signal( SIGSEGV, sigSegvBusHandler );
	177	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	178	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	179
[44bca7f]	180	// std::cout << "main" << std::endl;
	181	// for ( int i = 0; i < argc; i += 1 ) {
	182	// std::cout << '\t' << argv[i] << std::endl;
	183	// } // for
	184
[e0bd0f9]	185	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	186	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	187
[ef22ad6]	188	if ( waiting_for_gdb ) {
[dee1f89]	189	std::cerr << "Waiting for gdb" << std::endl;
	190	std::cerr << "run :" << std::endl;
	191	std::cerr << " gdb attach " << getpid() << std::endl;
	192	raise(SIGSTOP);
[ef22ad6]	193	} // if
[dee1f89]	194
[b87a5ed]	195	try {
[81419b5]	196	// choose to read the program from a file or stdin
[3b8e52c]	197	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	198	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	199	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	200	optind += 1;
[3b8e52c]	201	} else { // no input file name
[b87a5ed]	202	input = stdin;
	203	} // if
	204
[79eaeb7]	205	Stats::Time::StartGlobal();
[3c0d4cd]	206	NewPass("Parse");
	207	Stats::Time::StartBlock("Parse");
[675716e]	208
[159c62e]	209	// read in the builtins, extras, and the prelude
[de62360d]	210	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	211	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	212
[37fe352]	213	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	214
[807ce84]	215	// Read to gcc builtins, if not generating the cfa library
[37fe352]	216	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	217	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	218	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	219
[159c62e]	220	// read the extra prelude in, if not generating the cfa library
[37fe352]	221	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	222	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	223	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	224
[81419b5]	225	if ( ! libcfap ) {
[faf8857]	226	// read the prelude in, if not generating the cfa library
[e523b07]	227	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	228	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	229	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	230
	231	// Read to cfa builtins, if not generating the cfa library
[37fe352]	232	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	233	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	234	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	235	} // if
	236	} // if
[81419b5]	237
[926af74]	238	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	239
[b87a5ed]	240	if ( parsep ) {
[e6955b1]	241	parseTree->printList( cout );
[0da3e2c]	242	delete parseTree;
[3e96559]	243	return EXIT_SUCCESS;
[b87a5ed]	244	} // if
	245
[0da3e2c]	246	buildList( parseTree, translationUnit );
	247	delete parseTree;
[cbaee0d]	248	parseTree = nullptr;
[b87a5ed]	249
	250	if ( astp ) {
[1ab4ce2]	251	dump( translationUnit );
[3e96559]	252	return EXIT_SUCCESS;
[b87a5ed]	253	} // if
	254
[036dd5f]	255	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	256	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	257	// works okay for now.
	258	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	259	Stats::Time::StopBlock();
[036dd5f]	260
[839ccbb]	261	// add the assignment statement after the initialization of a type parameter
[675716e]	262	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]	263	if ( symtabp ) {
[46f6134]	264	deleteAll( translationUnit );
[3e96559]	265	return EXIT_SUCCESS;
[b87a5ed]	266	} // if
	267
[81419b5]	268	if ( expraltp ) {
[bff09c8]	269	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]	270	acceptAll( translationUnit, printer );
[3e96559]	271	return EXIT_SUCCESS;
[b87a5ed]	272	} // if
	273
	274	if ( validp ) {
[1ab4ce2]	275	dump( translationUnit );
[3e96559]	276	return EXIT_SUCCESS;
[b87a5ed]	277	} // if
	278
[675716e]	279	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
	280	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
	281	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
	282	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]	283	if ( libcfap ) {
	284	// generate the bodies of cfa library functions
	285	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	286	} // if
	287
[fa2de95]	288	if ( declstatsp ) {
	289	CodeTools::printDeclStats( translationUnit );
	290	deleteAll( translationUnit );
[3e96559]	291	return EXIT_SUCCESS;
	292	} // if
[fa2de95]	293
[de62360d]	294	if ( bresolvep ) {
[1ab4ce2]	295	dump( translationUnit );
[3e96559]	296	return EXIT_SUCCESS;
[de62360d]	297	} // if
	298
[76b378d]	299	CodeTools::fillLocations( translationUnit );
	300
[3b3491b]	301	if ( resolvprotop ) {
	302	CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]	303	return EXIT_SUCCESS;
	304	} // if
[3b3491b]	305
[9ea38de]	306	// PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
	307	{
	308	auto transUnit = convert( move( translationUnit ) );
	309	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
	310	translationUnit = convert( move( transUnit ) );
	311	}
[4615ac8]	312
[81419b5]	313	if ( exprp ) {
[1ab4ce2]	314	dump( translationUnit );
[3e96559]	315	return EXIT_SUCCESS;
[926af74]	316	} // if
[81419b5]	317
[71f4e4f]	318	// fix ObjectDecl - replaces ConstructorInit nodes
[675716e]	319	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[ca1c11f]	320	if ( ctorinitp ) {
	321	dump ( translationUnit );
[3e96559]	322	return EXIT_SUCCESS;
[926af74]	323	} // if
[71f4e4f]	324
[675716e]	325	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]	326
[675716e]	327	PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
[6edd210]	328
[675716e]	329	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	330
[675716e]	331	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	332
[675716e]	333	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	334
	335	if ( tuplep ) {
	336	dump( translationUnit );
[3e96559]	337	return EXIT_SUCCESS;
	338	} // if
[141b786]	339
[675716e]	340	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	341
[675716e]	342	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	343	if ( genericsp ) {
	344	dump( translationUnit );
[3e96559]	345	return EXIT_SUCCESS;
	346	} // if
[b4f8808]	347
[675716e]	348	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	349
[fea7ca7]	350	if ( bboxp ) {
	351	dump( translationUnit );
[3e96559]	352	return EXIT_SUCCESS;
[926af74]	353	} // if
[675716e]	354	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	355
[8905f56]	356	if ( bcodegenp ) {
	357	dump( translationUnit );
[3e96559]	358	return EXIT_SUCCESS;
	359	} // if
[8905f56]	360
[13de47bc]	361	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	362	output = new ofstream( argv[ optind ] );
	363	} // if
[0270824]	364
[7b15d7a]	365	CodeTools::fillLocations( translationUnit );
[62ce290]	366	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	367
[37fe352]	368	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	369	if ( output != &cout ) {
[b87a5ed]	370	delete output;
	371	} // if
[a16764a6]	372	} catch ( SemanticErrorException &e ) {
[b87a5ed]	373	if ( errorp ) {
[e6955b1]	374	cerr << "---AST at error:---" << endl;
	375	dump( translationUnit, cerr );
	376	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	377	} // if
[d55d7a6]	378	e.print();
[e6955b1]	379	if ( output != &cout ) {
[b87a5ed]	380	delete output;
	381	} // if
[3e96559]	382	return EXIT_FAILURE;
[b87a5ed]	383	} catch ( UnimplementedError &e ) {
[e6955b1]	384	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	385	if ( output != &cout ) {
[b87a5ed]	386	delete output;
	387	} // if
[3e96559]	388	return EXIT_FAILURE;
[b87a5ed]	389	} catch ( CompilerError &e ) {
[e6955b1]	390	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	391	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	392	if ( output != &cout ) {
[b87a5ed]	393	delete output;
	394	} // if
[3e96559]	395	return EXIT_FAILURE;
	396	} catch ( ... ) {
[4990812]	397	std::exception_ptr eptr = std::current_exception();
	398	try {
	399	if (eptr) {
	400	std::rethrow_exception(eptr);
[3e96559]	401	} else {
	402	std::cerr << "Exception Uncaught and Unknown" << std::endl;
	403	} // if
[4990812]	404	} catch(const std::exception& e) {
[0689cd9]	405	std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
[3e96559]	406	} // try
	407	return EXIT_FAILURE;
	408	} // try
[b87a5ed]	409
[39786813]	410	deleteAll( translationUnit );
[1cb7fab2]	411	Stats::print();
[3e96559]	412	return EXIT_SUCCESS;
[d9a0e76]	413	} // main
[51b7345]	414
[0da3e2c]	415
[e0bd0f9]	416	static const char optstring[] = ":hlLmNnpP:S:twW:D:";
[3e96559]	417
[62ce290]	418	enum { PreludeDir = 128 };
[3e96559]	419	static struct option long_opts[] = {
	420	{ "help", no_argument, nullptr, 'h' },
	421	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	422	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	423	{ "no-main", no_argument, 0, 'm' },
[62ce290]	424	{ "no-linemarks", no_argument, nullptr, 'N' },
	425	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	426	{ "prototypes", no_argument, nullptr, 'p' },
[62ce290]	427	{ "print", required_argument, nullptr, 'P' },
	428	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	429	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	430	{ "tree", no_argument, nullptr, 't' },
[dee1f89]	431	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	432	{ "", no_argument, nullptr, 0 }, // -w
	433	{ "", no_argument, nullptr, 0 }, // -W
	434	{ "", no_argument, nullptr, 0 }, // -D
	435	{ nullptr, 0, nullptr, 0 }
	436	}; // long_opts
	437
	438	static const char * description[] = {
[62ce290]	439	"print help message", // -h
[3e96559]	440	"generate libcfa.c", // -l
[62ce290]	441	"generate line marks", // -L
[3e96559]	442	"do not replace main", // -m
[62ce290]	443	"do not generate line marks", // -N
	444	"do not read prelude", // -n
	445	"generate prototypes for prelude functions", // -p
	446	"print", // -P
	447	"<directory> prelude directory for debug/nodebug", // no flag
	448	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[dee1f89]	449	"building cfa standard lib", // -t
	450	"wait for gdb to attach", // -g
[3e96559]	451	"", // -w
	452	"", // -W
	453	"", // -D
	454	}; // description
	455
[0c0f548]	456	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	457
	458	static struct Printopts {
	459	const char * name;
	460	int & flag;
	461	int val;
	462	const char * descript;
	463	} printopts[] = {
[0e464f6]	464	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	465	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	466	{ "declstats", declstatsp, true, "code property statistics" },
	467	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	468	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	469	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	470	{ "rsteps", resolvep, true, "print resolver steps" },
	471	{ "tree", parsep, true, "print parse tree" },
	472	// code dumps
	473	{ "ast", astp, true, "print AST after parsing" },
	474	{ "symevt", symtabp, true, "print AST after symbol table events" },
	475	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	476	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	477	{ "resolver", bresolvep, true, "print AST before resolver step" },
	478	{ "astexpr", exprp, true, "print AST after expression analysis" },
	479	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	480	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	481	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	482	{ "box", bboxp, true, "print AST before box step" },
	483	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	484	};
	485	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	486
[3e96559]	487	static void usage( char *argv[] ) {
[e0bd0f9]	488	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	489	int i = 0, j = 1; // j skips starting colon
	490	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	491	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	492	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	493	cout << " -" << optstring[j] << ",";
	494	} else { // no flag
	495	j -= 1; // compensate
	496	cout << " ";
	497	} // if
	498	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	499	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	500	cout << "one of: " << endl;
	501	for ( int i = 0; i < printoptsSize; i += 1 ) {
	502	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	503	} // for
	504	} else {
	505	cout << description[i] << endl;
	506	} // if
[3e96559]	507	} // if
[62ce290]	508	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	509	} // for
	510	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	511	exit( EXIT_FAILURE );
	512	} // usage
	513
[e0bd0f9]	514	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	515	opterr = 0; // (global) prevent getopt from printing error messages
	516
[c5e5109]	517	bool Wsuppress = false, Werror = false;
[0da3e2c]	518	int c;
[3e96559]	519	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	520	switch ( c ) {
[3e96559]	521	case 'h': // help message
	522	usage( argv ); // no return
[53d3ab4b]	523	break;
[3e96559]	524	case 'l': // generate libcfa.c
[0da3e2c]	525	libcfap = true;
	526	break;
[62ce290]	527	case 'L': // generate line marks
[6de43b6]	528	linemarks = true;
[c850687]	529	break;
[3e96559]	530	case 'm': // do not replace main
	531	nomainp = true;
[0da3e2c]	532	break;
[62ce290]	533	case 'N': // do not generate line marks
[6de43b6]	534	linemarks = false;
[c59bde6]	535	break;
[62ce290]	536	case 'n': // do not read prelude
[3e96559]	537	nopreludep = true;
[0da3e2c]	538	break;
[62ce290]	539	case 'p': // generate prototypes for prelude functions
	540	genproto = true;
[0da3e2c]	541	break;
[62ce290]	542	case 'P': // print options
	543	for ( int i = 0;; i += 1 ) {
	544	if ( i == printoptsSize ) {
	545	cout << "Unknown --print option " << optarg << endl;
	546	goto Default;
	547	} // if
	548	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	549	printopts[i].flag = printopts[i].val;
	550	break;
	551	} // if
	552	} // for
[0da3e2c]	553	break;
[62ce290]	554	case PreludeDir: // prelude directory for debug/nodebug, hidden
	555	PreludeDirector = optarg;
[3b3491b]	556	break;
[3e96559]	557	case 'S': // enable profiling information, argument comma separated list of names
	558	Stats::parse_params( optarg );
[ebcc940]	559	break;
[dee1f89]	560	case 't': // building cfa stdlib
[0da3e2c]	561	treep = true;
	562	break;
[dee1f89]	563	case 'g': // wait for gdb
	564	waiting_for_gdb = true;
	565	break;
[3e96559]	566	case 'w': // suppress all warnings, hidden
[c5e5109]	567	Wsuppress = true;
[44bca7f]	568	break;
[3e96559]	569	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	570	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	571	SemanticWarning_EnableAll();
[44bca7f]	572	} else if ( strcmp( optarg, "error" ) == 0 ) {
	573	Werror = true;
	574	} else {
	575	char * warning = optarg;
	576	Severity s;
	577	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	578	warning += 3;
	579	s = Severity::Suppress;
	580	} else {
	581	s = Severity::Warn;
	582	} // if
[68e9ace]	583	SemanticWarning_Set( warning, s );
[44bca7f]	584	} // if
	585	break;
[3e96559]	586	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	587	break;
[3e96559]	588	case '?': // unknown option
	589	if ( optopt ) { // short option ?
	590	cout << "Unknown option -" << (char)optopt << endl;
	591	} else {
	592	cout << "Unknown option " << argv[optind - 1] << endl;
	593	} // if
	594	goto Default;
	595	case ':': // missing option
[ae47a23]	596	if ( optopt ) { // short option ?
[3e96559]	597	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	598	} else {
[3e96559]	599	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	600	} // if
[3e96559]	601	goto Default;
	602	Default:
	603	default:
	604	usage( argv ); // no return
[0da3e2c]	605	} // switch
	606	} // while
[44bca7f]	607
	608	if ( Werror ) {
[68e9ace]	609	SemanticWarning_WarningAsError();
[44bca7f]	610	} // if
[c5e5109]	611	if ( Wsuppress ) {
	612	SemanticWarning_SuppressAll();
	613	} // if
[44bca7f]	614	// for ( const auto w : WarningFormats ) {
	615	// cout << w.name << ' ' << (int)w.severity << endl;
	616	// } // for
[0da3e2c]	617	} // parse_cmdline
	618
[8b7ee09]	619	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	620	extern int yyparse( void );
[cbaee0d]	621	extern FILE * yyin;
[0da3e2c]	622	extern int yylineno;
	623
[8b7ee09]	624	::linkage = linkage; // set globals
[0da3e2c]	625	yyin = input;
	626	yylineno = 1;
	627	int parseStatus = yyparse();
[81419b5]	628
	629	fclose( input );
[0da3e2c]	630	if ( shouldExit \|\| parseStatus != 0 ) {
	631	exit( parseStatus );
[81419b5]	632	} // if
[0da3e2c]	633	} // parse
[81419b5]	634
[1ab4ce2]	635	static bool notPrelude( Declaration * decl ) {
	636	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	637	} // notPrelude
[1ab4ce2]	638
[e6955b1]	639	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	640	list< Declaration * > decls;
[926af74]	641
[62ce290]	642	if ( genproto ) {
[e6955b1]	643	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	644	} else {
	645	decls = translationUnit;
[926af74]	646	} // if
[1ab4ce2]	647
[e39241b]	648	// depending on commandline options, either generate code or dump the AST
	649	if ( codegenp ) {
[62ce290]	650	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	651	} else {
	652	printAll( decls, out );
[3e96559]	653	} // if
[7f5566b]	654	deleteAll( translationUnit );
[0da3e2c]	655	} // dump
[1ab4ce2]	656
[51b7345]	657	// Local Variables: //
[b87a5ed]	658	// tab-width: 4 //
	659	// mode: c++ //
	660	// compile-command: "make install" //
[51b7345]	661	// End: //

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