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source: src/main.cc @ abec2f8

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

Last change on this file since abec2f8 was ef22ad6, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
deal with conflicts
Property mode set to `100644`
File size: 24.1 KB

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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	//
7	// main.cc --
8	//
9	// Author : Peter Buhr and Rob Schluntz
10	// Created On : Fri May 15 23:12:02 2015
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Fri Aug 23 06:50:08 2019
13	// Update Count : 607
14	//
15
16	#include <cxxabi.h> // for __cxa_demangle
17	#include <execinfo.h> // for backtrace, backtrace_symbols
18	#include <getopt.h> // for no_argument, optind, geto...
19	#include <cassert> // for assertf
20	#include <cstdio> // for fopen, FILE, fclose, stdin
21	#include <cstdlib> // for exit, free, abort, EXIT_F...
22	#include <csignal> // for signal, SIGABRT, SIGSEGV
23	#include <cstring> // for index
24	#include <fstream> // for ofstream
25	#include <iostream> // for operator<<, basic_ostream
26	#include <iomanip>
27	#include <iterator> // for back_inserter
28	#include <list> // for list
29	#include <string> // for char_traits, operator<<
30
31	#include "CompilationState.h"
32	#include "../config.h" // for CFA_LIBDIR
33	#include "CodeGen/FixMain.h" // for FixMain
34	#include "CodeGen/FixNames.h" // for fixNames
35	#include "CodeGen/Generate.h" // for generate
36	#include "CodeTools/DeclStats.h" // for printDeclStats
37	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
38	#include "CodeTools/TrackLoc.h" // for fillLocations
39	#include "Common/CompilerError.h" // for CompilerError
40	#include "Common/Stats.h"
41	#include "Common/PassVisitor.h"
42	#include "Common/SemanticError.h" // for SemanticError
43	#include "Common/UnimplementedError.h" // for UnimplementedError
44	#include "Common/utility.h" // for deleteAll, filter, printAll
45	#include "Concurrency/Waitfor.h" // for generateWaitfor
46	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
47	#include "ControlStruct/Mutate.h" // for mutate
48	#include "GenPoly/Box.h" // for box
49	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
50	#include "GenPoly/Lvalue.h" // for convertLvalue
51	#include "GenPoly/Specialize.h" // for convertSpecializations
52	#include "InitTweak/FixInit.h" // for fix
53	#include "InitTweak/GenInit.h" // for genInit
54	#include "MakeLibCfa.h" // for makeLibCfa
55	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
56	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
57	#include "Parser/TypedefTable.h" // for TypedefTable
58	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
59	#include "ResolvExpr/Resolver.h" // for resolve
60	#include "SymTab/Validate.h" // for validate
61	#include "SynTree/TopLvalue.h" // for assertTopLvalue, clearInn...
62	#include "SynTree/Declaration.h" // for Declaration
63	#include "SynTree/Visitor.h" // for acceptAll
64	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
65	#include "Virtual/ExpandCasts.h" // for expandCasts
66
67
68	using namespace std;
69
70	static void NewPass( const char * const name ) {
71	Stats::Heap::newPass( name );
72	using namespace Stats::Counters;
73	{
74	static auto group = build<CounterGroup>( "Pass Visitor" );
75	auto pass = build<CounterGroup>( name, group );
76	pass_visitor_stats.depth = 0;
77	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
78	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
79	}
80	{
81	static auto group = build<CounterGroup>( "Syntax Node" );
82	auto pass = build<CounterGroup>( name, group );
83	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
84	}
85	}
86
87	#define PASS( name, pass ) \
88	if ( errorp ) { cerr << name << endl; } \
89	NewPass(name); \
90	Stats::Time::StartBlock(name); \
91	pass; \
92	Stats::Time::StopBlock();
93
94	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
95	TypedefTable typedefTable;
96	DeclarationNode * parseTree = nullptr; // program parse tree
97
98	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
99
100	static std::string PreludeDirector = "";
101
102	static void parse_cmdline( int argc, char *argv[] );
103	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
104	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
105
106	static void backtrace( int start ) { // skip first N stack frames
107	enum { Frames = 50 };
108	void * array[Frames];
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;
114
115	// skip last 2 stack frames after main
116	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
117	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
118	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
119	if ( *p == '(' ) {
120	mangled_name = p;
121	} else if ( *p == '+' ) {
122	offset_begin = p;
123	} else if ( *p == ')' ) {
124	offset_end = p;
125	break;
126	} // if
127	} // for
128
129	// if line contains symbol, attempt to demangle
130	int frameNo = i - start;
131	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
132	*mangled_name++ = '\0'; // delimit strings
133	*offset_begin++ = '\0';
134	*offset_end++ = '\0';
135
136	int status;
137	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
138	// bug in __cxa_demangle for single-character lower-case non-mangled names
139	if ( status == 0 ) { // demangling successful ?
140	cerr << "(" << frameNo << ") " << messages[i] << " : "
141	<< real_name << "+" << offset_begin << offset_end << endl;
142	} else { // otherwise, output mangled name
143	cerr << "(" << frameNo << ") " << messages[i] << " : "
144	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
145	} // if
146
147	free( real_name );
148	} else { // otherwise, print the whole line
149	cerr << "(" << frameNo << ") " << messages[i] << endl;
150	} // if
151	} // for
152
153	free( messages );
154	} // backtrace
155
156	static void sigSegvBusHandler( int sig_num ) {
157	cerr << "CFA runtime error program cfa-cpp terminated with "
158	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
159	<< "." << endl;
160	backtrace( 2 ); // skip first 2 stack frames
161	//_exit( EXIT_FAILURE );
162	abort(); // cause core dump for debugging
163	} // sigSegvBusHandler
164
165	static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
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	int main( int argc, char * argv[] ) {
172	FILE * input; // use FILE rather than istream because yyin is FILE
173	ostream * output = & cout;
174	list< Declaration * > translationUnit;
175
176	signal( SIGSEGV, sigSegvBusHandler );
177	signal( SIGBUS, sigSegvBusHandler );
178	signal( SIGABRT, sigAbortHandler );
179
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
185	parse_cmdline( argc, argv ); // process command-line arguments
186	CodeGen::FixMain::setReplaceMain( !nomainp );
187
188	if ( waiting_for_gdb ) {
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);
193	} // if
194
195	try {
196	// choose to read the program from a file or stdin
197	if ( optind < argc ) { // any commands after the flags ? => input file name
198	input = fopen( argv[ optind ], "r" );
199	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
200	optind += 1;
201	} else { // no input file name
202	input = stdin;
203	} // if
204
205	Stats::Time::StartGlobal();
206	NewPass("Parse");
207	Stats::Time::StartBlock("Parse");
208
209	// read in the builtins, extras, and the prelude
210	if ( ! nopreludep ) { // include gcc builtins
211	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
212
213	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
214
215	// Read to gcc builtins, if not generating the cfa library
216	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
217	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
218	parse( gcc_builtins, LinkageSpec::Compiler );
219
220	// read the extra prelude in, if not generating the cfa library
221	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
222	assertf( extras, "cannot open extras.cf\n" );
223	parse( extras, LinkageSpec::BuiltinC );
224
225	if ( ! libcfap ) {
226	// read the prelude in, if not generating the cfa library
227	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
228	assertf( prelude, "cannot open prelude.cfa\n" );
229	parse( prelude, LinkageSpec::Intrinsic );
230
231	// Read to cfa builtins, if not generating the cfa library
232	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
233	assertf( builtins, "cannot open builtins.cf\n" );
234	parse( builtins, LinkageSpec::BuiltinCFA );
235	} // if
236	} // if
237
238	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
239
240	if ( parsep ) {
241	parseTree->printList( cout );
242	delete parseTree;
243	return EXIT_SUCCESS;
244	} // if
245
246	buildList( parseTree, translationUnit );
247	delete parseTree;
248	parseTree = nullptr;
249
250	if ( astp ) {
251	dump( translationUnit );
252	return EXIT_SUCCESS;
253	} // if
254
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 );
259	Stats::Time::StopBlock();
260
261	//std::cerr << "Post-Parse Check" << std::endl;
262	clearInnerLvalue( translationUnit );
263	assertTopLvalue( translationUnit );
264
265	// add the assignment statement after the initialization of a type parameter
266	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
267	if ( symtabp ) {
268	deleteAll( translationUnit );
269	return EXIT_SUCCESS;
270	} // if
271
272	if ( expraltp ) {
273	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
274	acceptAll( translationUnit, printer );
275	return EXIT_SUCCESS;
276	} // if
277
278	if ( validp ) {
279	dump( translationUnit );
280	return EXIT_SUCCESS;
281	} // if
282
283	assertTopLvalue( translationUnit );
284	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
285	assertTopLvalue( translationUnit );
286	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
287	assertTopLvalue( translationUnit );
288	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
289	assertTopLvalue( translationUnit );
290	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
291	assertTopLvalue( translationUnit );
292	if ( libcfap ) {
293	// generate the bodies of cfa library functions
294	LibCfa::makeLibCfa( translationUnit );
295	} // if
296
297	if ( declstatsp ) {
298	CodeTools::printDeclStats( translationUnit );
299	deleteAll( translationUnit );
300	return EXIT_SUCCESS;
301	} // if
302
303	if ( bresolvep ) {
304	dump( translationUnit );
305	return EXIT_SUCCESS;
306	} // if
307
308	CodeTools::fillLocations( translationUnit );
309
310	if ( resolvprotop ) {
311	CodeTools::dumpAsResolvProto( translationUnit );
312	return EXIT_SUCCESS;
313	} // if
314
315	assertTopLvalue( translationUnit );
316
317	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
318	if ( exprp ) {
319	dump( translationUnit );
320	return EXIT_SUCCESS;
321	} // if
322
323	clearInnerLvalue( translationUnit );
324	assertTopLvalue( translationUnit );
325
326	// fix ObjectDecl - replaces ConstructorInit nodes
327	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
328	clearInnerLvalue( translationUnit );
329	assertTopLvalue( translationUnit );
330	if ( ctorinitp ) {
331	dump ( translationUnit );
332	return EXIT_SUCCESS;
333	} // if
334
335	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
336	assertTopLvalue( translationUnit );
337
338	PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
339	assertTopLvalue( translationUnit );
340
341	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
342	clearInnerLvalue( translationUnit );
343	assertTopLvalue( translationUnit );
344
345	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
346	clearInnerLvalue( translationUnit );
347	assertTopLvalue( translationUnit );
348
349	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
350	assertTopLvalue( translationUnit );
351
352	if ( tuplep ) {
353	dump( translationUnit );
354	return EXIT_SUCCESS;
355	} // if
356
357	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
358	assertTopLvalue( translationUnit );
359
360	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
361	if ( genericsp ) {
362	dump( translationUnit );
363	return EXIT_SUCCESS;
364	} // if
365	clearInnerLvalue( translationUnit );
366	assertTopLvalue( translationUnit );
367	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
368	clearInnerLvalue( translationUnit );
369	assertTopLvalue( translationUnit );
370
371	if ( bboxp ) {
372	dump( translationUnit );
373	return EXIT_SUCCESS;
374	} // if
375	PASS( "Box", GenPoly::box( translationUnit ) );
376	clearInnerLvalue( translationUnit );
377	assertTopLvalue( translationUnit );
378
379	if ( bcodegenp ) {
380	dump( translationUnit );
381	return EXIT_SUCCESS;
382	} // if
383
384	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
385	output = new ofstream( argv[ optind ] );
386	} // if
387
388	CodeTools::fillLocations( translationUnit );
389	assertTopLvalue( translationUnit );
390	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
391
392	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
393	if ( output != &cout ) {
394	delete output;
395	} // if
396	} catch ( SemanticErrorException &e ) {
397	if ( errorp ) {
398	cerr << "---AST at error:---" << endl;
399	dump( translationUnit, cerr );
400	cerr << endl << "---End of AST, begin error message:---\n" << endl;
401	} // if
402	e.print();
403	if ( output != &cout ) {
404	delete output;
405	} // if
406	return EXIT_FAILURE;
407	} catch ( UnimplementedError &e ) {
408	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
409	if ( output != &cout ) {
410	delete output;
411	} // if
412	return EXIT_FAILURE;
413	} catch ( CompilerError &e ) {
414	cerr << "Compiler Error: " << e.get_what() << endl;
415	cerr << "(please report bugs to [REDACTED])" << endl;
416	if ( output != &cout ) {
417	delete output;
418	} // if
419	return EXIT_FAILURE;
420	} catch ( ... ) {
421	std::exception_ptr eptr = std::current_exception();
422	try {
423	if (eptr) {
424	std::rethrow_exception(eptr);
425	} else {
426	std::cerr << "Exception Uncaught and Unknown" << std::endl;
427	} // if
428	} catch(const std::exception& e) {
429	std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
430	} // try
431	return EXIT_FAILURE;
432	} // try
433
434	deleteAll( translationUnit );
435	Stats::print();
436	return EXIT_SUCCESS;
437	} // main
438
439
440	static const char optstring[] = ":hlLmNnpP:S:twW:D:";
441
442	enum { PreludeDir = 128 };
443	static struct option long_opts[] = {
444	{ "help", no_argument, nullptr, 'h' },
445	{ "libcfa", no_argument, nullptr, 'l' },
446	{ "linemarks", no_argument, nullptr, 'L' },
447	{ "no-main", no_argument, 0, 'm' },
448	{ "no-linemarks", no_argument, nullptr, 'N' },
449	{ "no-prelude", no_argument, nullptr, 'n' },
450	{ "prototypes", no_argument, nullptr, 'p' },
451	{ "print", required_argument, nullptr, 'P' },
452	{ "prelude-dir", required_argument, nullptr, PreludeDir },
453	{ "statistics", required_argument, nullptr, 'S' },
454	{ "tree", no_argument, nullptr, 't' },
455	{ "gdb", no_argument, nullptr, 'g' },
456	{ "", no_argument, nullptr, 0 }, // -w
457	{ "", no_argument, nullptr, 0 }, // -W
458	{ "", no_argument, nullptr, 0 }, // -D
459	{ nullptr, 0, nullptr, 0 }
460	}; // long_opts
461
462	static const char * description[] = {
463	"print help message", // -h
464	"generate libcfa.c", // -l
465	"generate line marks", // -L
466	"do not replace main", // -m
467	"do not generate line marks", // -N
468	"do not read prelude", // -n
469	"generate prototypes for prelude functions", // -p
470	"print", // -P
471	"<directory> prelude directory for debug/nodebug", // no flag
472	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
473	"building cfa standard lib", // -t
474	"wait for gdb to attach", // -g
475	"", // -w
476	"", // -W
477	"", // -D
478	}; // description
479
480	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
481
482	static struct Printopts {
483	const char * name;
484	int & flag;
485	int val;
486	const char * descript;
487	} printopts[] = {
488	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
489	{ "asterr", errorp, true, "print AST on error" },
490	{ "declstats", declstatsp, true, "code property statistics" },
491	{ "parse", yydebug, true, "yacc (parsing) debug information" },
492	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
493	{ "rproto", resolvprotop, true, "resolver-proto instance" },
494	{ "rsteps", resolvep, true, "print resolver steps" },
495	{ "tree", parsep, true, "print parse tree" },
496	// code dumps
497	{ "ast", astp, true, "print AST after parsing" },
498	{ "symevt", symtabp, true, "print AST after symbol table events" },
499	{ "altexpr", expraltp, true, "print alternatives for expressions" },
500	{ "astdecl", validp, true, "print AST after declaration validation pass" },
501	{ "resolver", bresolvep, true, "print AST before resolver step" },
502	{ "astexpr", exprp, true, "print AST after expression analysis" },
503	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
504	{ "tuple", tuplep, true, "print AST after tuple expansion" },
505	{ "astgen", genericsp, true, "print AST after instantiate generics" },
506	{ "box", bboxp, true, "print AST before box step" },
507	{ "codegen", bcodegenp, true, "print AST before code generation" },
508	};
509	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
510
511	static void usage( char *argv[] ) {
512	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
513	int i = 0, j = 1; // j skips starting colon
514	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
515	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
516	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
517	cout << " -" << optstring[j] << ",";
518	} else { // no flag
519	j -= 1; // compensate
520	cout << " ";
521	} // if
522	cout << " --" << left << setw(12) << long_opts[i].name << " ";
523	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
524	cout << "one of: " << endl;
525	for ( int i = 0; i < printoptsSize; i += 1 ) {
526	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
527	} // for
528	} else {
529	cout << description[i] << endl;
530	} // if
531	} // if
532	if ( optstring[j + 1] == ':' ) j += 1;
533	} // for
534	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
535	exit( EXIT_FAILURE );
536	} // usage
537
538	static void parse_cmdline( int argc, char * argv[] ) {
539	opterr = 0; // (global) prevent getopt from printing error messages
540
541	bool Wsuppress = false, Werror = false;
542	int c;
543	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
544	switch ( c ) {
545	case 'h': // help message
546	usage( argv ); // no return
547	break;
548	case 'l': // generate libcfa.c
549	libcfap = true;
550	break;
551	case 'L': // generate line marks
552	linemarks = true;
553	break;
554	case 'm': // do not replace main
555	nomainp = true;
556	break;
557	case 'N': // do not generate line marks
558	linemarks = false;
559	break;
560	case 'n': // do not read prelude
561	nopreludep = true;
562	break;
563	case 'p': // generate prototypes for prelude functions
564	genproto = true;
565	break;
566	case 'P': // print options
567	for ( int i = 0;; i += 1 ) {
568	if ( i == printoptsSize ) {
569	cout << "Unknown --print option " << optarg << endl;
570	goto Default;
571	} // if
572	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
573	printopts[i].flag = printopts[i].val;
574	break;
575	} // if
576	} // for
577	break;
578	case PreludeDir: // prelude directory for debug/nodebug, hidden
579	PreludeDirector = optarg;
580	break;
581	case 'S': // enable profiling information, argument comma separated list of names
582	Stats::parse_params( optarg );
583	break;
584	case 't': // building cfa stdlib
585	treep = true;
586	break;
587	case 'g': // wait for gdb
588	waiting_for_gdb = true;
589	break;
590	case 'w': // suppress all warnings, hidden
591	Wsuppress = true;
592	break;
593	case 'W': // coordinate gcc -W with CFA, hidden
594	if ( strcmp( optarg, "all" ) == 0 ) {
595	SemanticWarning_EnableAll();
596	} else if ( strcmp( optarg, "error" ) == 0 ) {
597	Werror = true;
598	} else {
599	char * warning = optarg;
600	Severity s;
601	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
602	warning += 3;
603	s = Severity::Suppress;
604	} else {
605	s = Severity::Warn;
606	} // if
607	SemanticWarning_Set( warning, s );
608	} // if
609	break;
610	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
611	break;
612	case '?': // unknown option
613	if ( optopt ) { // short option ?
614	cout << "Unknown option -" << (char)optopt << endl;
615	} else {
616	cout << "Unknown option " << argv[optind - 1] << endl;
617	} // if
618	goto Default;
619	case ':': // missing option
620	if ( optopt ) { // short option ?
621	cout << "Missing option for -" << (char)optopt << endl;
622	} else {
623	cout << "Missing option for " << argv[optind - 1] << endl;
624	} // if
625	goto Default;
626	Default:
627	default:
628	usage( argv ); // no return
629	} // switch
630	} // while
631
632	if ( Werror ) {
633	SemanticWarning_WarningAsError();
634	} // if
635	if ( Wsuppress ) {
636	SemanticWarning_SuppressAll();
637	} // if
638	// for ( const auto w : WarningFormats ) {
639	// cout << w.name << ' ' << (int)w.severity << endl;
640	// } // for
641	} // parse_cmdline
642
643	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
644	extern int yyparse( void );
645	extern FILE * yyin;
646	extern int yylineno;
647
648	::linkage = linkage; // set globals
649	yyin = input;
650	yylineno = 1;
651	int parseStatus = yyparse();
652
653	fclose( input );
654	if ( shouldExit \|\| parseStatus != 0 ) {
655	exit( parseStatus );
656	} // if
657	} // parse
658
659	static bool notPrelude( Declaration * decl ) {
660	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
661	} // notPrelude
662
663	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
664	list< Declaration * > decls;
665
666	if ( genproto ) {
667	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
668	} else {
669	decls = translationUnit;
670	} // if
671
672	// depending on commandline options, either generate code or dump the AST
673	if ( codegenp ) {
674	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
675	} else {
676	printAll( decls, out );
677	} // if
678	deleteAll( translationUnit );
679	} // dump
680
681	// Local Variables: //
682	// tab-width: 4 //
683	// mode: c++ //
684	// compile-command: "make install" //
685	// End: //

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