| 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // main.cc --
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| 8 | //
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| 9 | // Author : Peter Buhr and Rob Schluntz
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| 10 | // Created On : Fri May 15 23:12:02 2015
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| 11 | // Last Modified By : Henry Xue
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| 12 | // Last Modified On : Tue Jul 20 04:27:35 2021
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| 13 | // Update Count : 658
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| 14 | //
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| 15 |
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| 16 | #include <cxxabi.h> // for __cxa_demangle
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| 17 | #include <execinfo.h> // for backtrace, backtrace_symbols
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| 18 | #include <getopt.h> // for no_argument, optind, geto...
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| 19 | #include <cassert> // for assertf
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| 20 | #include <cstdio> // for fopen, FILE, fclose, stdin
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| 21 | #include <cstdlib> // for exit, free, abort, EXIT_F...
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| 22 | #include <csignal> // for signal, SIGABRT, SIGSEGV
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| 23 | #include <cstring> // for index
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| 24 | #include <fstream> // for ofstream
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| 25 | #include <iostream> // for operator<<, basic_ostream
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| 26 | #include <iomanip>
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| 27 | #include <iterator> // for back_inserter
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| 28 | #include <list> // for list
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| 29 | #include <string> // for char_traits, operator<<
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| 30 |
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| 31 | using namespace std;
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| 32 |
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| 33 | #include "AST/Convert.hpp"
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| 34 | #include "CompilationState.h"
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| 35 | #include "../config.h" // for CFA_LIBDIR
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| 36 | #include "CodeGen/FixMain.h" // for FixMain
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| 37 | #include "CodeGen/FixNames.h" // for fixNames
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| 38 | #include "CodeGen/Generate.h" // for generate
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| 39 | #include "CodeGen/LinkOnce.h" // for translateLinkOnce
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| 40 | #include "CodeTools/DeclStats.h" // for printDeclStats
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| 41 | #include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
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| 42 | #include "CodeTools/TrackLoc.h" // for fillLocations
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| 43 | #include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
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| 44 | #include "Common/CompilerError.h" // for CompilerError
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| 45 | #include "Common/Stats.h"
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| 46 | #include "Common/PassVisitor.h"
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| 47 | #include "Common/SemanticError.h" // for SemanticError
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| 48 | #include "Common/UnimplementedError.h" // for UnimplementedError
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| 49 | #include "Common/utility.h" // for deleteAll, filter, printAll
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| 50 | #include "Concurrency/Waitfor.h" // for generateWaitfor
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| 51 | #include "ControlStruct/ExceptDecl.h" // for translateExcept
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| 52 | #include "ControlStruct/ExceptTranslate.h" // for translateEHM
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| 53 | #include "ControlStruct/Mutate.h" // for mutate
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| 54 | #include "GenPoly/Box.h" // for box
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| 55 | #include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
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| 56 | #include "GenPoly/Lvalue.h" // for convertLvalue
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| 57 | #include "GenPoly/Specialize.h" // for convertSpecializations
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| 58 | #include "InitTweak/FixInit.h" // for fix
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| 59 | #include "InitTweak/GenInit.h" // for genInit
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| 60 | #include "MakeLibCfa.h" // for makeLibCfa
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| 61 | #include "Parser/ParseNode.h" // for DeclarationNode, buildList
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| 62 | #include "Parser/TypedefTable.h" // for TypedefTable
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| 63 | #include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
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| 64 | #include "ResolvExpr/Resolver.h" // for resolve
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| 65 | #include "SymTab/Validate.h" // for validate
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| 66 | #include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
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| 67 | #include "SynTree/Declaration.h" // for Declaration
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| 68 | #include "SynTree/Visitor.h" // for acceptAll
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| 69 | #include "Tuples/Tuples.h" // for expandMemberTuples, expan...
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| 70 | #include "Virtual/ExpandCasts.h" // for expandCasts
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| 71 |
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| 72 |
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| 73 | static void NewPass( const char * const name ) {
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| 74 | Stats::Heap::newPass( name );
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| 75 | using namespace Stats::Counters;
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| 76 | {
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| 77 | static auto group = build<CounterGroup>( "Pass Visitor" );
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| 78 | auto pass = build<CounterGroup>( name, group );
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| 79 | pass_visitor_stats.depth = 0;
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| 80 | pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
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| 81 | pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
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| 82 | }
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| 83 | {
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| 84 | static auto group = build<CounterGroup>( "Syntax Node" );
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| 85 | auto pass = build<CounterGroup>( name, group );
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| 86 | BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
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| 87 | }
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| 88 | }
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| 89 |
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| 90 | #define PASS( name, pass ) \
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| 91 | if ( errorp ) { cerr << name << endl; } \
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| 92 | NewPass(name); \
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| 93 | Stats::Time::StartBlock(name); \
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| 94 | pass; \
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| 95 | Stats::Time::StopBlock();
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| 96 |
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| 97 | LinkageSpec::Spec linkage = LinkageSpec::Cforall;
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| 98 | TypedefTable typedefTable;
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| 99 | DeclarationNode * parseTree = nullptr; // program parse tree
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| 100 |
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| 101 | static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
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| 102 |
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| 103 | static string PreludeDirector = "";
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| 104 |
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| 105 | static void parse_cmdline( int argc, char * argv[] );
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| 106 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
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| 107 | static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
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| 108 | static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
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| 109 |
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| 110 | static void backtrace( int start ) { // skip first N stack frames
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| 111 | enum { Frames = 50, }; // maximum number of stack frames
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| 112 | void * array[Frames];
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| 113 | size_t size = ::backtrace( array, Frames );
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| 114 | char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
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| 115 |
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| 116 | *index( messages[0], '(' ) = '\0'; // find executable name
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| 117 | cerr << "Stack back trace for: " << messages[0] << endl;
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| 118 |
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| 119 | // skip last 2 stack frames after main
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| 120 | for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
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| 121 | char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
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| 122 |
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| 123 | for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
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| 124 | if ( *p == '(' ) {
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| 125 | mangled_name = p;
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| 126 | } else if ( *p == '+' ) {
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| 127 | offset_begin = p;
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| 128 | } else if ( *p == ')' ) {
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| 129 | offset_end = p;
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| 130 | break;
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| 131 | } // if
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| 132 | } // for
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| 133 |
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| 134 | // if line contains symbol, attempt to demangle
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| 135 | int frameNo = i - start;
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| 136 | if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
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| 137 | *mangled_name++ = '\0'; // delimit strings
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| 138 | *offset_begin++ = '\0';
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| 139 | *offset_end++ = '\0';
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| 140 |
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| 141 | int status;
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| 142 | char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
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| 143 | // bug in __cxa_demangle for single-character lower-case non-mangled names
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| 144 | if ( status == 0 ) { // demangling successful ?
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| 145 | cerr << "(" << frameNo << ") " << messages[i] << " : "
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| 146 | << real_name << "+" << offset_begin << offset_end << endl;
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| 147 | } else { // otherwise, output mangled name
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| 148 | cerr << "(" << frameNo << ") " << messages[i] << " : "
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| 149 | << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
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| 150 | } // if
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| 151 |
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| 152 | free( real_name );
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| 153 | } else { // otherwise, print the whole line
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| 154 | cerr << "(" << frameNo << ") " << messages[i] << endl;
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| 155 | } // if
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| 156 | } // for
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| 157 |
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| 158 | free( messages );
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| 159 | } // backtrace
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| 160 |
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| 161 | #define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
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| 162 |
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| 163 | static void _Signal(struct sigaction & act, int sig, int flags ) {
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| 164 | act.sa_flags = flags;
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| 165 |
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| 166 | if ( sigaction( sig, &act, nullptr ) == -1 ) {
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| 167 | cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
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| 168 | _exit( EXIT_FAILURE );
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| 169 | } // if
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| 170 | }
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| 171 |
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| 172 | static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
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| 173 | struct sigaction act;
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| 174 | act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
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| 175 | _Signal(act, sig, flags);
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| 176 | } // Signal
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| 177 |
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| 178 | static void Signal( int sig, void (* handler)(int), int flags ) {
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| 179 | struct sigaction act;
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| 180 | act.sa_handler = handler;
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| 181 | _Signal(act, sig, flags);
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| 182 | } // Signal
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| 183 |
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| 184 | static void sigSegvBusHandler( SIGPARMS ) {
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| 185 | if ( sfp->si_addr == nullptr ) {
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| 186 | cerr << "Null pointer (nullptr) dereference." << endl;
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| 187 | } else {
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| 188 | cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
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| 189 | << "Possible cause is reading outside the address space or writing to a protected area within the address space with an invalid pointer or subscript." << endl;
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| 190 | } // if
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| 191 | backtrace( 2 ); // skip first 2 stack frames
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| 192 | abort(); // cause core dump for debugging
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| 193 | } // sigSegvBusHandler
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| 194 |
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| 195 | static void sigFpeHandler( SIGPARMS ) {
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| 196 | const char * msg;
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| 197 |
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| 198 | switch ( sfp->si_code ) {
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| 199 | case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
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| 200 | case FPE_FLTOVF: msg = "overflow"; break;
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| 201 | case FPE_FLTUND: msg = "underflow"; break;
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| 202 | case FPE_FLTRES: msg = "inexact result"; break;
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| 203 | case FPE_FLTINV: msg = "invalid operation"; break;
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| 204 | default: msg = "unknown";
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| 205 | } // choose
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| 206 | cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
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| 207 | << "Possible cause is constant-expression evaluation invalid." << endl;
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| 208 | backtrace( 2 ); // skip first 2 stack frames
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| 209 | abort(); // cause core dump for debugging
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| 210 | } // sigFpeHandler
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| 211 |
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| 212 | static void sigAbortHandler( SIGPARMS ) {
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| 213 | backtrace( 6 ); // skip first 6 stack frames
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| 214 | Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
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| 215 | raise( SIGABRT ); // reraise SIGABRT
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| 216 | } // sigAbortHandler
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| 217 |
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| 218 | int main( int argc, char * argv[] ) {
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| 219 | FILE * input; // use FILE rather than istream because yyin is FILE
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| 220 | ostream * output = & cout;
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| 221 | list< Declaration * > translationUnit;
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| 222 |
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| 223 | Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
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| 224 | Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
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| 225 | Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
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| 226 | Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
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| 227 |
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| 228 | // cout << "main" << endl;
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| 229 | // for ( int i = 0; i < argc; i += 1 ) {
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| 230 | // cout << '\t' << argv[i] << endl;
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| 231 | // } // for
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| 232 |
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| 233 | parse_cmdline( argc, argv ); // process command-line arguments
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| 234 | CodeGen::FixMain::setReplaceMain( !nomainp );
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| 235 |
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| 236 | if ( waiting_for_gdb ) {
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| 237 | cerr << "Waiting for gdb" << endl;
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| 238 | cerr << "run :" << endl;
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| 239 | cerr << " gdb attach " << getpid() << endl;
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| 240 | raise(SIGSTOP);
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| 241 | } // if
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| 242 |
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| 243 | try {
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| 244 | // choose to read the program from a file or stdin
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| 245 | if ( optind < argc ) { // any commands after the flags ? => input file name
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| 246 | input = fopen( argv[ optind ], "r" );
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| 247 | assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
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| 248 | optind += 1;
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| 249 | } else { // no input file name
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| 250 | input = stdin;
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| 251 | } // if
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| 252 |
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| 253 | Stats::Time::StartGlobal();
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| 254 | NewPass("Parse");
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| 255 | Stats::Time::StartBlock("Parse");
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| 256 |
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| 257 | // read in the builtins, extras, and the prelude
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| 258 | if ( ! nopreludep ) { // include gcc builtins
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| 259 | // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
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| 260 |
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| 261 | assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
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| 262 |
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| 263 | // Read to gcc builtins, if not generating the cfa library
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| 264 | FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
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| 265 | assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
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| 266 | parse( gcc_builtins, LinkageSpec::Compiler );
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| 267 |
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| 268 | // read the extra prelude in, if not generating the cfa library
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| 269 | FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
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| 270 | assertf( extras, "cannot open extras.cf\n" );
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| 271 | parse( extras, LinkageSpec::BuiltinC );
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| 272 |
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| 273 | if ( ! libcfap ) {
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| 274 | // read the prelude in, if not generating the cfa library
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| 275 | FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
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| 276 | assertf( prelude, "cannot open prelude.cfa\n" );
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| 277 | parse( prelude, LinkageSpec::Intrinsic );
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| 278 |
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| 279 | // Read to cfa builtins, if not generating the cfa library
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| 280 | FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
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| 281 | assertf( builtins, "cannot open builtins.cf\n" );
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| 282 | parse( builtins, LinkageSpec::BuiltinCFA );
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| 283 | } // if
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| 284 | } // if
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| 285 |
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| 286 | parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
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| 287 |
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| 288 | if ( parsep ) {
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| 289 | parseTree->printList( cout );
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| 290 | delete parseTree;
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| 291 | return EXIT_SUCCESS;
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| 292 | } // if
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| 293 |
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| 294 | buildList( parseTree, translationUnit );
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| 295 | delete parseTree;
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| 296 | parseTree = nullptr;
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| 297 |
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| 298 | if ( astp ) {
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| 299 | dump( translationUnit );
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| 300 | return EXIT_SUCCESS;
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| 301 | } // if
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| 302 |
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| 303 | // Temporary: fill locations after parsing so that every node has a location, for early error messages.
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| 304 | // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
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| 305 | // works okay for now.
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| 306 | CodeTools::fillLocations( translationUnit );
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| 307 | Stats::Time::StopBlock();
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| 308 |
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| 309 | PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
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| 310 | if ( exdeclp ) {
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| 311 | dump( translationUnit );
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| 312 | return EXIT_SUCCESS;
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| 313 | } // if
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| 314 |
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| 315 | // add the assignment statement after the initialization of a type parameter
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| 316 | PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
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| 317 | if ( symtabp ) {
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| 318 | deleteAll( translationUnit );
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| 319 | return EXIT_SUCCESS;
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| 320 | } // if
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| 321 |
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| 322 | if ( expraltp ) {
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| 323 | PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
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| 324 | acceptAll( translationUnit, printer );
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| 325 | return EXIT_SUCCESS;
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| 326 | } // if
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| 327 |
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| 328 | if ( validp ) {
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| 329 | dump( translationUnit );
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| 330 | return EXIT_SUCCESS;
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| 331 | } // if
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| 332 |
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| 333 | PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
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| 334 | PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
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| 335 | PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
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| 336 | PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
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| 337 | PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
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| 338 | if ( libcfap ) {
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| 339 | // generate the bodies of cfa library functions
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| 340 | LibCfa::makeLibCfa( translationUnit );
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| 341 | } // if
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| 342 |
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| 343 | if ( declstatsp ) {
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| 344 | CodeTools::printDeclStats( translationUnit );
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| 345 | deleteAll( translationUnit );
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| 346 | return EXIT_SUCCESS;
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| 347 | } // if
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| 348 |
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| 349 | if ( bresolvep ) {
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| 350 | dump( translationUnit );
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| 351 | return EXIT_SUCCESS;
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| 352 | } // if
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| 353 |
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| 354 | CodeTools::fillLocations( translationUnit );
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| 355 |
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| 356 | if ( resolvprotop ) {
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| 357 | CodeTools::dumpAsResolvProto( translationUnit );
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| 358 | return EXIT_SUCCESS;
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| 359 | } // if
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| 360 |
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| 361 | if( useNewAST ) {
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| 362 | if (Stats::Counters::enabled) {
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| 363 | ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
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| 364 | ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
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| 365 | }
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| 366 | auto transUnit = convert( move( translationUnit ) );
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| 367 | PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
|
|---|
| 368 | if ( exprp ) {
|
|---|
| 369 | dump( move( transUnit ) );
|
|---|
| 370 | return EXIT_SUCCESS;
|
|---|
| 371 | } // if
|
|---|
| 372 |
|
|---|
| 373 | forceFillCodeLocations( transUnit );
|
|---|
| 374 |
|
|---|
| 375 | PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
|
|---|
| 376 |
|
|---|
| 377 | // fix ObjectDecl - replaces ConstructorInit nodes
|
|---|
| 378 | if ( ctorinitp ) {
|
|---|
| 379 | dump( move( transUnit ) );
|
|---|
| 380 | return EXIT_SUCCESS;
|
|---|
| 381 | } // if
|
|---|
| 382 |
|
|---|
| 383 | // Currently not working due to unresolved issues with UniqueExpr
|
|---|
| 384 | PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( transUnit ) ); // 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
|
|---|
| 385 | translationUnit = convert( move( transUnit ) );
|
|---|
| 386 | } else {
|
|---|
| 387 | PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
|
|---|
| 388 | if ( exprp ) {
|
|---|
| 389 | dump( translationUnit );
|
|---|
| 390 | return EXIT_SUCCESS;
|
|---|
| 391 | }
|
|---|
| 392 |
|
|---|
| 393 | PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
|
|---|
| 394 |
|
|---|
| 395 | // fix ObjectDecl - replaces ConstructorInit nodes
|
|---|
| 396 | if ( ctorinitp ) {
|
|---|
| 397 | dump ( translationUnit );
|
|---|
| 398 | return EXIT_SUCCESS;
|
|---|
| 399 | } // if
|
|---|
| 400 |
|
|---|
| 401 | 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
|
|---|
| 402 | }
|
|---|
| 403 |
|
|---|
| 404 | PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
|
|---|
| 405 |
|
|---|
| 406 | PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
|
|---|
| 407 |
|
|---|
| 408 | PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
|
|---|
| 409 |
|
|---|
| 410 | PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
|
|---|
| 411 |
|
|---|
| 412 | if ( tuplep ) {
|
|---|
| 413 | dump( translationUnit );
|
|---|
| 414 | return EXIT_SUCCESS;
|
|---|
| 415 | } // if
|
|---|
| 416 |
|
|---|
| 417 | PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
|
|---|
| 418 |
|
|---|
| 419 | PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
|
|---|
| 420 | if ( genericsp ) {
|
|---|
| 421 | dump( translationUnit );
|
|---|
| 422 | return EXIT_SUCCESS;
|
|---|
| 423 | } // if
|
|---|
| 424 |
|
|---|
| 425 | PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
|
|---|
| 426 |
|
|---|
| 427 | if ( bboxp ) {
|
|---|
| 428 | dump( translationUnit );
|
|---|
| 429 | return EXIT_SUCCESS;
|
|---|
| 430 | } // if
|
|---|
| 431 | PASS( "Box", GenPoly::box( translationUnit ) );
|
|---|
| 432 |
|
|---|
| 433 | PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
|
|---|
| 434 |
|
|---|
| 435 | // Code has been lowered to C, now we can start generation.
|
|---|
| 436 |
|
|---|
| 437 | if ( bcodegenp ) {
|
|---|
| 438 | dump( translationUnit );
|
|---|
| 439 | return EXIT_SUCCESS;
|
|---|
| 440 | } // if
|
|---|
| 441 |
|
|---|
| 442 | if ( optind < argc ) { // any commands after the flags and input file ? => output file name
|
|---|
| 443 | output = new ofstream( argv[ optind ] );
|
|---|
| 444 | } // if
|
|---|
| 445 |
|
|---|
| 446 | CodeTools::fillLocations( translationUnit );
|
|---|
| 447 | PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
|
|---|
| 448 |
|
|---|
| 449 | CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
|
|---|
| 450 | if ( output != &cout ) {
|
|---|
| 451 | delete output;
|
|---|
| 452 | } // if
|
|---|
| 453 | } catch ( SemanticErrorException & e ) {
|
|---|
| 454 | if ( errorp ) {
|
|---|
| 455 | cerr << "---AST at error:---" << endl;
|
|---|
| 456 | dump( translationUnit, cerr );
|
|---|
| 457 | cerr << endl << "---End of AST, begin error message:---\n" << endl;
|
|---|
| 458 | } // if
|
|---|
| 459 | e.print();
|
|---|
| 460 | if ( output != &cout ) {
|
|---|
| 461 | delete output;
|
|---|
| 462 | } // if
|
|---|
| 463 | return EXIT_FAILURE;
|
|---|
| 464 | } catch ( UnimplementedError & e ) {
|
|---|
| 465 | cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
|
|---|
| 466 | if ( output != &cout ) {
|
|---|
| 467 | delete output;
|
|---|
| 468 | } // if
|
|---|
| 469 | return EXIT_FAILURE;
|
|---|
| 470 | } catch ( CompilerError & e ) {
|
|---|
| 471 | cerr << "Compiler Error: " << e.get_what() << endl;
|
|---|
| 472 | cerr << "(please report bugs to [REDACTED])" << endl;
|
|---|
| 473 | if ( output != &cout ) {
|
|---|
| 474 | delete output;
|
|---|
| 475 | } // if
|
|---|
| 476 | return EXIT_FAILURE;
|
|---|
| 477 | } catch ( std::bad_alloc & ) {
|
|---|
| 478 | cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
|
|---|
| 479 | backtrace( 1 );
|
|---|
| 480 | abort();
|
|---|
| 481 | } catch ( ... ) {
|
|---|
| 482 | exception_ptr eptr = current_exception();
|
|---|
| 483 | try {
|
|---|
| 484 | if (eptr) {
|
|---|
| 485 | rethrow_exception(eptr);
|
|---|
| 486 | } else {
|
|---|
| 487 | cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
|
|---|
| 488 | } // if
|
|---|
| 489 | } catch( const exception & e ) {
|
|---|
| 490 | cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
|
|---|
| 491 | } // try
|
|---|
| 492 | return EXIT_FAILURE;
|
|---|
| 493 | } // try
|
|---|
| 494 |
|
|---|
| 495 | deleteAll( translationUnit );
|
|---|
| 496 | Stats::print();
|
|---|
| 497 | return EXIT_SUCCESS;
|
|---|
| 498 | } // main
|
|---|
| 499 |
|
|---|
| 500 |
|
|---|
| 501 | static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
|
|---|
| 502 |
|
|---|
| 503 | enum { PreludeDir = 128 };
|
|---|
| 504 | static struct option long_opts[] = {
|
|---|
| 505 | { "colors", required_argument, nullptr, 'c' },
|
|---|
| 506 | { "gdb", no_argument, nullptr, 'g' },
|
|---|
| 507 | { "help", no_argument, nullptr, 'h' },
|
|---|
| 508 | { "libcfa", no_argument, nullptr, 'l' },
|
|---|
| 509 | { "linemarks", no_argument, nullptr, 'L' },
|
|---|
| 510 | { "no-main", no_argument, 0, 'm' },
|
|---|
| 511 | { "no-linemarks", no_argument, nullptr, 'N' },
|
|---|
| 512 | { "no-prelude", no_argument, nullptr, 'n' },
|
|---|
| 513 | { "prototypes", no_argument, nullptr, 'p' },
|
|---|
| 514 | { "deterministic-out", no_argument, nullptr, 'd' },
|
|---|
| 515 | { "old-ast", no_argument, nullptr, 'O'},
|
|---|
| 516 | { "new-ast", no_argument, nullptr, 'A'},
|
|---|
| 517 | { "print", required_argument, nullptr, 'P' },
|
|---|
| 518 | { "prelude-dir", required_argument, nullptr, PreludeDir },
|
|---|
| 519 | { "statistics", required_argument, nullptr, 'S' },
|
|---|
| 520 | { "tree", no_argument, nullptr, 't' },
|
|---|
| 521 | { "", no_argument, nullptr, 0 }, // -w
|
|---|
| 522 | { "", no_argument, nullptr, 0 }, // -W
|
|---|
| 523 | { "", no_argument, nullptr, 0 }, // -D
|
|---|
| 524 | { nullptr, 0, nullptr, 0 }
|
|---|
| 525 | }; // long_opts
|
|---|
| 526 |
|
|---|
| 527 | static const char * description[] = {
|
|---|
| 528 | "diagnostic color: never, always, auto", // -c
|
|---|
| 529 | "wait for gdb to attach", // -g
|
|---|
| 530 | "print translator help message", // -h
|
|---|
| 531 | "generate libcfa.c", // -l
|
|---|
| 532 | "generate line marks", // -L
|
|---|
| 533 | "do not replace main", // -m
|
|---|
| 534 | "do not generate line marks", // -N
|
|---|
| 535 | "do not read prelude", // -n
|
|---|
| 536 | "do not generate prelude prototypes => prelude not printed", // -p
|
|---|
| 537 | "only print deterministic output", // -d
|
|---|
| 538 | "Use the old-ast", // -O
|
|---|
| 539 | "Use the new-ast", // -A
|
|---|
| 540 | "print", // -P
|
|---|
| 541 | "<directory> prelude directory for debug/nodebug", // no flag
|
|---|
| 542 | "<option-list> enable profiling information: counters, heap, time, all, none", // -S
|
|---|
| 543 | "building cfa standard lib", // -t
|
|---|
| 544 | "", // -w
|
|---|
| 545 | "", // -W
|
|---|
| 546 | "", // -D
|
|---|
| 547 | }; // description
|
|---|
| 548 |
|
|---|
| 549 | static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
|
|---|
| 550 |
|
|---|
| 551 | static struct Printopts {
|
|---|
| 552 | const char * name;
|
|---|
| 553 | int & flag;
|
|---|
| 554 | int val;
|
|---|
| 555 | const char * descript;
|
|---|
| 556 | } printopts[] = {
|
|---|
| 557 | { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
|
|---|
| 558 | { "asterr", errorp, true, "print AST on error" },
|
|---|
| 559 | { "declstats", declstatsp, true, "code property statistics" },
|
|---|
| 560 | { "parse", yydebug, true, "yacc (parsing) debug information" },
|
|---|
| 561 | { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
|
|---|
| 562 | { "rproto", resolvprotop, true, "resolver-proto instance" },
|
|---|
| 563 | { "rsteps", resolvep, true, "print resolver steps" },
|
|---|
| 564 | { "tree", parsep, true, "print parse tree" },
|
|---|
| 565 | // code dumps
|
|---|
| 566 | { "ast", astp, true, "print AST after parsing" },
|
|---|
| 567 | { "exdecl", exdeclp, true, "print AST after translating exception decls" },
|
|---|
| 568 | { "symevt", symtabp, true, "print AST after symbol table events" },
|
|---|
| 569 | { "altexpr", expraltp, true, "print alternatives for expressions" },
|
|---|
| 570 | { "astdecl", validp, true, "print AST after declaration validation pass" },
|
|---|
| 571 | { "resolver", bresolvep, true, "print AST before resolver step" },
|
|---|
| 572 | { "astexpr", exprp, true, "print AST after expression analysis" },
|
|---|
| 573 | { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
|
|---|
| 574 | { "tuple", tuplep, true, "print AST after tuple expansion" },
|
|---|
| 575 | { "astgen", genericsp, true, "print AST after instantiate generics" },
|
|---|
| 576 | { "box", bboxp, true, "print AST before box step" },
|
|---|
| 577 | { "codegen", bcodegenp, true, "print AST before code generation" },
|
|---|
| 578 | };
|
|---|
| 579 | enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
|
|---|
| 580 |
|
|---|
| 581 | static void usage( char * argv[] ) {
|
|---|
| 582 | cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
|
|---|
| 583 | int i = 0, j = 1; // j skips starting colon
|
|---|
| 584 | for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
|
|---|
| 585 | if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
|
|---|
| 586 | if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
|
|---|
| 587 | cout << " -" << optstring[j] << ",";
|
|---|
| 588 | } else { // no flag
|
|---|
| 589 | j -= 1; // compensate
|
|---|
| 590 | cout << " ";
|
|---|
| 591 | } // if
|
|---|
| 592 | cout << " --" << left << setw(12) << long_opts[i].name << " ";
|
|---|
| 593 | if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
|
|---|
| 594 | cout << "one of: " << endl;
|
|---|
| 595 | for ( int i = 0; i < printoptsSize; i += 1 ) {
|
|---|
| 596 | cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
|
|---|
| 597 | } // for
|
|---|
| 598 | } else {
|
|---|
| 599 | cout << description[i] << endl;
|
|---|
| 600 | } // if
|
|---|
| 601 | } // if
|
|---|
| 602 | if ( optstring[j + 1] == ':' ) j += 1;
|
|---|
| 603 | } // for
|
|---|
| 604 | if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
|
|---|
| 605 | exit( EXIT_FAILURE );
|
|---|
| 606 | } // usage
|
|---|
| 607 |
|
|---|
| 608 | static void parse_cmdline( int argc, char * argv[] ) {
|
|---|
| 609 | opterr = 0; // (global) prevent getopt from printing error messages
|
|---|
| 610 |
|
|---|
| 611 | bool Wsuppress = false, Werror = false;
|
|---|
| 612 | int c;
|
|---|
| 613 | while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
|
|---|
| 614 | switch ( c ) {
|
|---|
| 615 | case 'c': // diagnostic colors
|
|---|
| 616 | if ( strcmp( optarg, "always" ) == 0 ) {
|
|---|
| 617 | ErrorHelpers::colors = ErrorHelpers::Colors::Always;
|
|---|
| 618 | } else if ( strcmp( optarg, "never" ) == 0 ) {
|
|---|
| 619 | ErrorHelpers::colors = ErrorHelpers::Colors::Never;
|
|---|
| 620 | } else if ( strcmp( optarg, "auto" ) == 0 ) {
|
|---|
| 621 | ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
|
|---|
| 622 | } // if
|
|---|
| 623 | break;
|
|---|
| 624 | case 'h': // help message
|
|---|
| 625 | usage( argv ); // no return
|
|---|
| 626 | break;
|
|---|
| 627 | case 'l': // generate libcfa.c
|
|---|
| 628 | libcfap = true;
|
|---|
| 629 | break;
|
|---|
| 630 | case 'L': // generate line marks
|
|---|
| 631 | linemarks = true;
|
|---|
| 632 | break;
|
|---|
| 633 | case 'm': // do not replace main
|
|---|
| 634 | nomainp = true;
|
|---|
| 635 | break;
|
|---|
| 636 | case 'N': // do not generate line marks
|
|---|
| 637 | linemarks = false;
|
|---|
| 638 | break;
|
|---|
| 639 | case 'n': // do not read prelude
|
|---|
| 640 | nopreludep = true;
|
|---|
| 641 | break;
|
|---|
| 642 | case 'p': // generate prototypes for prelude functions
|
|---|
| 643 | genproto = true;
|
|---|
| 644 | break;
|
|---|
| 645 | case 'd': // don't print non-deterministic output
|
|---|
| 646 | deterministic_output = true;
|
|---|
| 647 | break;
|
|---|
| 648 | case 'O': // don't print non-deterministic output
|
|---|
| 649 | useNewAST = false;
|
|---|
| 650 | break;
|
|---|
| 651 | case 'A': // don't print non-deterministic output
|
|---|
| 652 | useNewAST = true;
|
|---|
| 653 | break;
|
|---|
| 654 | case 'P': // print options
|
|---|
| 655 | for ( int i = 0;; i += 1 ) {
|
|---|
| 656 | if ( i == printoptsSize ) {
|
|---|
| 657 | cout << "Unknown --print option " << optarg << endl;
|
|---|
| 658 | goto Default;
|
|---|
| 659 | } // if
|
|---|
| 660 | if ( strcmp( optarg, printopts[i].name ) == 0 ) {
|
|---|
| 661 | printopts[i].flag = printopts[i].val;
|
|---|
| 662 | break;
|
|---|
| 663 | } // if
|
|---|
| 664 | } // for
|
|---|
| 665 | break;
|
|---|
| 666 | case PreludeDir: // prelude directory for debug/nodebug, hidden
|
|---|
| 667 | PreludeDirector = optarg;
|
|---|
| 668 | break;
|
|---|
| 669 | case 'S': // enable profiling information, argument comma separated list of names
|
|---|
| 670 | Stats::parse_params( optarg );
|
|---|
| 671 | break;
|
|---|
| 672 | case 't': // building cfa stdlib
|
|---|
| 673 | treep = true;
|
|---|
| 674 | break;
|
|---|
| 675 | case 'g': // wait for gdb
|
|---|
| 676 | waiting_for_gdb = true;
|
|---|
| 677 | break;
|
|---|
| 678 | case 'w': // suppress all warnings, hidden
|
|---|
| 679 | Wsuppress = true;
|
|---|
| 680 | break;
|
|---|
| 681 | case 'W': // coordinate gcc -W with CFA, hidden
|
|---|
| 682 | if ( strcmp( optarg, "all" ) == 0 ) {
|
|---|
| 683 | SemanticWarning_EnableAll();
|
|---|
| 684 | } else if ( strcmp( optarg, "error" ) == 0 ) {
|
|---|
| 685 | Werror = true;
|
|---|
| 686 | } else {
|
|---|
| 687 | char * warning = optarg;
|
|---|
| 688 | Severity s;
|
|---|
| 689 | if ( strncmp( optarg, "no-", 3 ) == 0 ) {
|
|---|
| 690 | warning += 3;
|
|---|
| 691 | s = Severity::Suppress;
|
|---|
| 692 | } else {
|
|---|
| 693 | s = Severity::Warn;
|
|---|
| 694 | } // if
|
|---|
| 695 | SemanticWarning_Set( warning, s );
|
|---|
| 696 | } // if
|
|---|
| 697 | break;
|
|---|
| 698 | case 'D': // ignore -Dxxx, forwarded by cpp, hidden
|
|---|
| 699 | break;
|
|---|
| 700 | case '?': // unknown option
|
|---|
| 701 | if ( optopt ) { // short option ?
|
|---|
| 702 | cout << "Unknown option -" << (char)optopt << endl;
|
|---|
| 703 | } else {
|
|---|
| 704 | cout << "Unknown option " << argv[optind - 1] << endl;
|
|---|
| 705 | } // if
|
|---|
| 706 | goto Default;
|
|---|
| 707 | case ':': // missing option
|
|---|
| 708 | if ( optopt ) { // short option ?
|
|---|
| 709 | cout << "Missing option for -" << (char)optopt << endl;
|
|---|
| 710 | } else {
|
|---|
| 711 | cout << "Missing option for " << argv[optind - 1] << endl;
|
|---|
| 712 | } // if
|
|---|
| 713 | goto Default;
|
|---|
| 714 | Default:
|
|---|
| 715 | default:
|
|---|
| 716 | usage( argv ); // no return
|
|---|
| 717 | } // switch
|
|---|
| 718 | } // while
|
|---|
| 719 |
|
|---|
| 720 | if ( Werror ) {
|
|---|
| 721 | SemanticWarning_WarningAsError();
|
|---|
| 722 | } // if
|
|---|
| 723 | if ( Wsuppress ) {
|
|---|
| 724 | SemanticWarning_SuppressAll();
|
|---|
| 725 | } // if
|
|---|
| 726 | // for ( const auto w : WarningFormats ) {
|
|---|
| 727 | // cout << w.name << ' ' << (int)w.severity << endl;
|
|---|
| 728 | // } // for
|
|---|
| 729 | } // parse_cmdline
|
|---|
| 730 |
|
|---|
| 731 | static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
|
|---|
| 732 | extern int yyparse( void );
|
|---|
| 733 | extern FILE * yyin;
|
|---|
| 734 | extern int yylineno;
|
|---|
| 735 |
|
|---|
| 736 | ::linkage = linkage; // set globals
|
|---|
| 737 | yyin = input;
|
|---|
| 738 | yylineno = 1;
|
|---|
| 739 | int parseStatus = yyparse();
|
|---|
| 740 |
|
|---|
| 741 | fclose( input );
|
|---|
| 742 | if ( shouldExit || parseStatus != 0 ) {
|
|---|
| 743 | exit( parseStatus );
|
|---|
| 744 | } // if
|
|---|
| 745 | } // parse
|
|---|
| 746 |
|
|---|
| 747 | static bool notPrelude( Declaration * decl ) {
|
|---|
| 748 | return ! LinkageSpec::isBuiltin( decl->get_linkage() );
|
|---|
| 749 | } // notPrelude
|
|---|
| 750 |
|
|---|
| 751 | static void dump( list< Declaration * > & translationUnit, ostream & out ) {
|
|---|
| 752 | list< Declaration * > decls;
|
|---|
| 753 |
|
|---|
| 754 | if ( genproto ) {
|
|---|
| 755 | filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
|
|---|
| 756 | } else {
|
|---|
| 757 | decls = translationUnit;
|
|---|
| 758 | } // if
|
|---|
| 759 |
|
|---|
| 760 | // depending on commandline options, either generate code or dump the AST
|
|---|
| 761 | if ( codegenp ) {
|
|---|
| 762 | CodeGen::generate( decls, out, ! genproto, prettycodegenp );
|
|---|
| 763 | } else {
|
|---|
| 764 | printAll( decls, out );
|
|---|
| 765 | } // if
|
|---|
| 766 | deleteAll( translationUnit );
|
|---|
| 767 | } // dump
|
|---|
| 768 |
|
|---|
| 769 | static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
|
|---|
| 770 | std::list< Declaration * > translationUnit = convert( move( transUnit ) );
|
|---|
| 771 | dump( translationUnit, out );
|
|---|
| 772 | }
|
|---|
| 773 |
|
|---|
| 774 | // Local Variables: //
|
|---|
| 775 | // tab-width: 4 //
|
|---|
| 776 | // mode: c++ //
|
|---|
| 777 | // compile-command: "make install" //
|
|---|
| 778 | // End: //
|
|---|
